/* ==========================================================================
   SpecInfo Ecosystem – Redesigned Landing Page
   Premium dark UI with glassmorphism, bento grid & mesh gradients
   ========================================================================== */

/* 1. Design System Tokens
   ========================================================================== */
:root {
    /* Backgrounds */
    --bg-void: #030507;
    --bg-dark: #060910;
    --bg-surface: rgba(12, 16, 28, 0.55);
    --bg-surface-hover: rgba(20, 26, 46, 0.7);
    --bg-elevated: rgba(255, 255, 255, 0.03);

    /* Borders */
    --border-subtle: rgba(255, 255, 255, 0.06);
    --border-medium: rgba(255, 255, 255, 0.1);
    --border-strong: rgba(255, 255, 255, 0.18);

    /* Text */
    --text-primary: #f0f4f8;
    --text-secondary: #8b9dc3;
    --text-muted: #556b8a;

    /* Accent palette */
    --clr-specinfo: #3b82f6;
    --clr-speedtest: #06d6e0;
    --clr-eco: #10b981;
    --clr-sentinel: #8b5cf6;
    --clr-pro: #f59e0b;
    --clr-accent: #3b82f6;

    /* Glows */
    --glow-specinfo: 0 0 40px rgba(59, 130, 246, 0.15), 0 0 80px rgba(59, 130, 246, 0.05);
    --glow-speedtest: 0 0 40px rgba(6, 214, 224, 0.15), 0 0 80px rgba(6, 214, 224, 0.05);
    --glow-eco: 0 0 40px rgba(16, 185, 129, 0.15), 0 0 80px rgba(16, 185, 129, 0.05);
    --glow-sentinel: 0 0 40px rgba(139, 92, 246, 0.15), 0 0 80px rgba(139, 92, 246, 0.05);

    /* Typography */
    --font-sans: 'Outfit', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --font-mono: 'JetBrains Mono', monospace;

    /* Motion */
    --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
    --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
    --transition: all 0.4s var(--ease-out-expo);
    --transition-fast: all 0.25s var(--ease-out-expo);
}

/* 2. Reset & Base
   ========================================================================== */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
    background-color: var(--bg-void);
}

body {
    font-family: var(--font-sans);
    color: var(--text-primary);
    background-color: var(--bg-void);
    overflow-x: hidden;
    line-height: 1.65;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Scrollbar */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-void); }
::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.08);
    border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover { background: rgba(59, 130, 246, 0.4); }

/* Selection */
::selection {
    background: rgba(59, 130, 246, 0.3);
    color: #fff;
}

/* 3. Layout
   ========================================================================== */
.container {
    max-width: 1240px;
    margin: 0 auto;
    padding: 0 28px;
}

section, header, footer {
    position: relative;
    z-index: 2;
}

/* 4. Background Layers
   ========================================================================== */
#particle-canvas {
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    z-index: 1;
    pointer-events: none;
    opacity: 0.5;
}

/* Mesh gradient blobs */
.mesh-gradient {
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    z-index: 0;
    pointer-events: none;
    overflow: hidden;
}

.mesh-blob {
    position: absolute;
    border-radius: 50%;
    filter: blur(120px);
    opacity: 0.12;
    animation: blobDrift 20s ease-in-out infinite alternate;
}

.mesh-blob.blob-1 {
    width: 600px; height: 600px;
    background: var(--clr-specinfo);
    top: -10%; left: -5%;
    animation-delay: 0s;
}

.mesh-blob.blob-2 {
    width: 500px; height: 500px;
    background: var(--clr-sentinel);
    top: 30%; right: -10%;
    animation-delay: -5s;
    animation-duration: 25s;
}

.mesh-blob.blob-3 {
    width: 450px; height: 450px;
    background: var(--clr-eco);
    bottom: -5%; left: 20%;
    animation-delay: -10s;
    animation-duration: 22s;
}

.mesh-blob.blob-4 {
    width: 350px; height: 350px;
    background: var(--clr-speedtest);
    top: 60%; left: 60%;
    animation-delay: -15s;
    animation-duration: 28s;
}

@keyframes blobDrift {
    0%   { transform: translate(0, 0) scale(1); }
    33%  { transform: translate(30px, -40px) scale(1.05); }
    66%  { transform: translate(-20px, 20px) scale(0.95); }
    100% { transform: translate(10px, -10px) scale(1.02); }
}

/* Grain overlay */
.grain-overlay {
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    z-index: 1;
    pointer-events: none;
    opacity: 0.025;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
    background-repeat: repeat;
    background-size: 200px 200px;
}

/* 5. Typography Utilities
   ========================================================================== */
.font-mono { font-family: var(--font-mono); }

.text-gradient {
    background: linear-gradient(135deg, #3b82f6 0%, #06d6e0 40%, #10b981 70%, #8b5cf6 100%);
    background-size: 200% 200%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: gradientShift 6s ease-in-out infinite;
}

@keyframes gradientShift {
    0%, 100% { background-position: 0% 50%; }
    50%      { background-position: 100% 50%; }
}

.text-muted { color: var(--text-muted); }
.text-success { color: var(--clr-eco); }
.text-info { color: var(--clr-speedtest); }
.text-warning { color: var(--clr-specinfo); }
.prompt { color: var(--clr-sentinel); }

/* 6. Button System
   ========================================================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-weight: 600;
    font-family: var(--font-sans);
    text-decoration: none;
    border-radius: 14px;
    transition: var(--transition);
    cursor: pointer;
    border: 1px solid transparent;
    position: relative;
    overflow: hidden;
    letter-spacing: 0.01em;
}

.btn-sm {
    padding: 10px 22px;
    font-size: 0.875rem;
    border-radius: 12px;
}

.btn-lg {
    padding: 17px 38px;
    font-size: 1.05rem;
    border-radius: 16px;
}

.btn-primary {
    background: linear-gradient(135deg, #3b82f6 0%, #06d6e0 100%);
    color: var(--bg-void);
    font-weight: 700;
    box-shadow: 0 4px 24px rgba(6, 214, 224, 0.2);
}

.btn-primary::after {
    content: '';
    position: absolute;
    top: 0; left: -100%;
    width: 100%; height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.25), transparent);
    transition: left 0.6s var(--ease-out-expo);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 36px rgba(6, 214, 224, 0.35);
}

.btn-primary:hover::after {
    left: 100%;
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.04);
    color: var(--text-primary);
    border-color: var(--border-medium);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: var(--border-strong);
    transform: translateY(-3px);
}

.btn-outline {
    background: transparent;
    color: var(--text-primary);
    border-color: var(--border-medium);
}

.btn-outline:hover {
    background: rgba(59, 130, 246, 0.08);
    border-color: var(--clr-specinfo);
    color: #fff;
    box-shadow: 0 0 20px rgba(59, 130, 246, 0.15);
}

/* 7. Header / Floating Pill Navbar
   ========================================================================== */
.main-header {
    position: fixed;
    top: 16px;
    left: 50%;
    transform: translateX(-50%);
    width: calc(100% - 48px);
    max-width: 1200px;
    backdrop-filter: blur(24px) saturate(1.3);
    -webkit-backdrop-filter: blur(24px) saturate(1.3);
    border: 1px solid var(--border-subtle);
    background-color: rgba(6, 9, 16, 0.7);
    z-index: 1000;
    padding: 0 8px;
    border-radius: 20px;
    transition: var(--transition);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

.main-header.scrolled {
    background-color: rgba(6, 9, 16, 0.92);
    border-color: var(--border-medium);
    box-shadow: 0 8px 40px rgba(0, 0, 0, 0.5);
    top: 10px;
}

.header-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 16px;
}

/* Logo */
.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 800;
    font-size: 1.35rem;
    letter-spacing: -0.02em;
    flex-shrink: 0;
}

.logo-icon {
    font-size: 1.6rem;
    color: var(--clr-speedtest);
    text-shadow: 0 0 12px rgba(6, 214, 224, 0.5);
    animation: pulseGlow 4s infinite ease-in-out;
}

.logo .highlight {
    color: var(--clr-specinfo);
}

.logo-badge {
    font-size: 0.6rem;
    font-weight: 800;
    letter-spacing: 0.15em;
    background: rgba(59, 130, 246, 0.1);
    color: var(--clr-specinfo);
    padding: 3px 8px;
    border-radius: 6px;
    border: 1px solid rgba(59, 130, 246, 0.2);
}

/* Navigation */
.nav-menu {
    display: flex;
    align-items: center;
    gap: 6px;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.9rem;
    padding: 8px 14px;
    border-radius: 10px;
    transition: var(--transition-fast);
}

.nav-link:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.05);
}

.nav-link.lang-switcher {
    margin-left: 4px;
    border: 1px solid var(--border-subtle);
    background: rgba(255, 255, 255, 0.02);
}

.nav-link.lang-switcher:hover {
    border-color: var(--border-medium);
    background: rgba(255, 255, 255, 0.06);
}

.header-cta {
    flex-shrink: 0;
}

/* Hamburger */
.hamburger-btn {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    width: 40px;
    height: 40px;
    position: relative;
    z-index: 1001;
    border-radius: 10px;
    transition: var(--transition-fast);
}

.hamburger-btn:hover {
    background: rgba(255, 255, 255, 0.05);
}

.hamburger-btn span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    margin: 5px auto;
    transition: var(--transition-fast);
}

.hamburger-btn.active span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.hamburger-btn.active span:nth-child(2) {
    opacity: 0;
    transform: scaleX(0);
}

.hamburger-btn.active span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* 8. Hero Section
   ========================================================================== */
.hero-section {
    padding: 160px 0 80px 0;
    overflow: hidden;
    min-height: min(100vh, 900px);
    display: flex;
    align-items: center;
}

.hero-container {
    display: grid;
    grid-template-columns: 1.15fr 0.85fr;
    gap: 64px;
    align-items: center;
}

.hero-content {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.hero-tag {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-subtle);
    padding: 8px 18px;
    border-radius: 9999px;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 24px;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.hero-title {
    font-size: clamp(2.6rem, 5vw, 3.8rem);
    line-height: 1.1;
    font-weight: 800;
    letter-spacing: -0.035em;
    margin-bottom: 24px;
}

.hero-subtitle {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 36px;
    max-width: 540px;
    line-height: 1.7;
}

.hero-actions {
    display: flex;
    gap: 16px;
    margin-bottom: 40px;
}

.hero-features {
    display: flex;
    gap: 28px;
    flex-wrap: wrap;
}

.h-feat-item {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-muted);
    padding: 6px 0;
}

.h-feat-item i {
    color: var(--clr-speedtest);
    font-size: 0.9rem;
}

/* Hero Visual — 3D Spatial Orbital (Gemini-Inspired) */
.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
    perspective: 1200px;
    transform-style: preserve-3d;
}

.orbital-3d-scene {
    position: relative;
    width: 440px;
    height: 440px;
    display: flex;
    justify-content: center;
    align-items: center;
    transform-style: preserve-3d;
    will-change: transform;
    transition: transform 0.15s ease-out;
}

/* Polychromatic dynamic background aura (Gemini-style) */
.orbital-aura {
    position: absolute;
    width: 420px;
    height: 420px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(6, 214, 224, 0.28) 0%, rgba(59, 130, 246, 0.22) 35%, rgba(139, 92, 246, 0.18) 60%, transparent 80%);
    filter: blur(45px);
    transform: translateZ(-80px);
    pointer-events: none;
    animation: auraPulse 6s ease-in-out infinite alternate;
}

@keyframes auraPulse {
    0% {
        transform: translateZ(-80px) scale(0.9);
        opacity: 0.7;
    }
    100% {
        transform: translateZ(-80px) scale(1.15);
        opacity: 1;
    }
}

.orbital-wrapper {
    position: relative;
    width: 390px;
    height: 390px;
    transform-style: preserve-3d;
    animation: idleSpatialFloat 8s ease-in-out infinite alternate;
}

@keyframes idleSpatialFloat {
    0% {
        transform: rotateX(0deg) rotateY(0deg) translateY(0px);
    }
    50% {
        transform: rotateX(4deg) rotateY(-4deg) translateY(-8px);
    }
    100% {
        transform: rotateX(-3deg) rotateY(5deg) translateY(4px);
    }
}

/* Central 3D Hub */
.orbital-center {
    position: absolute;
    top: 50%; left: 50%;
    transform: translate(-50%, -50%) translateZ(60px);
    width: 128px; height: 128px;
    border-radius: 30px;
    transform-style: preserve-3d;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10;
    cursor: pointer;
    transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.3s ease;
}

.orbital-center:hover {
    transform: translate(-50%, -50%) translateZ(82px) scale(1.08);
}

.orbital-center-glow {
    position: absolute;
    inset: -12px;
    border-radius: 38px;
    background: radial-gradient(circle at center, rgba(6, 214, 224, 0.45), rgba(59, 130, 246, 0.25), transparent 70%);
    filter: blur(18px);
    transform: translateZ(-15px);
    animation: pulseGlow 3s infinite ease-in-out;
}

/* Gemini Iridescent Conic Border */
@property --iridescent-angle {
    syntax: '<angle>';
    initial-value: 0deg;
    inherits: false;
}

.orbital-iridescent-border {
    position: absolute;
    inset: -2px;
    border-radius: 32px;
    background: conic-gradient(from var(--iridescent-angle), #06d6e0, #3b82f6, #8b5cf6, #ec4899, #10b981, #06d6e0);
    animation: rotateIridescent 6s linear infinite;
    opacity: 0.85;
    z-index: 0;
    filter: blur(1px);
}

@keyframes rotateIridescent {
    0% { --iridescent-angle: 0deg; }
    100% { --iridescent-angle: 360deg; }
}

/* Shockwave Ripple Effect on Click */
.orbital-shockwave {
    position: absolute;
    top: 50%; left: 50%;
    width: 130px; height: 130px;
    margin-left: -65px; margin-top: -65px;
    border-radius: 50%;
    border: 2px solid var(--clr-speedtest);
    pointer-events: none;
    opacity: 0;
    transform: translateZ(50px) scale(1);
    box-shadow: 0 0 30px rgba(6, 214, 224, 0.8), inset 0 0 20px rgba(59, 130, 246, 0.6);
}

.orbital-shockwave.active {
    animation: shockwavePulse 0.85s cubic-bezier(0.1, 0.85, 0.25, 1) forwards;
}

@keyframes shockwavePulse {
    0% {
        opacity: 0.9;
        transform: translateZ(50px) scale(1);
        border-color: rgba(6, 214, 224, 1);
    }
    100% {
        opacity: 0;
        transform: translateZ(50px) scale(3.5);
        border-color: rgba(139, 92, 246, 0);
    }
}

.orbital-center-glass {
    position: absolute;
    inset: 1.5px;
    border-radius: 29px;
    background: linear-gradient(135deg, rgba(20, 26, 46, 0.88) 0%, rgba(10, 14, 26, 0.95) 100%);
    border: 1px solid rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1;
    box-shadow:
        0 24px 48px rgba(0, 0, 0, 0.6),
        0 0 35px rgba(6, 214, 224, 0.15),
        inset 0 1px 2px rgba(255, 255, 255, 0.4),
        inset 0 0 20px rgba(59, 130, 246, 0.15);
    overflow: hidden;
}

.orbital-sheen {
    position: absolute;
    inset: 0;
    border-radius: 30px;
    background: radial-gradient(circle at var(--glare-x, 50%) var(--glare-y, 30%), rgba(255, 255, 255, 0.5) 0%, transparent 65%);
    pointer-events: none;
    mix-blend-mode: overlay;
    opacity: 0.95;
    z-index: 2;
    transition: opacity 0.3s ease;
}

.orbital-center .logo-icon {
    font-size: 3.2rem;
    color: var(--clr-speedtest);
    transform: translateZ(30px);
    text-shadow: 0 0 25px rgba(6, 214, 224, 0.85), 0 0 45px rgba(59, 130, 246, 0.5);
    filter: drop-shadow(0 4px 14px rgba(6, 214, 224, 0.45));
    animation: pulseGlow 3s infinite ease-in-out;
    user-select: none;
}

/* Orbit rings in 3D perspective */
.orbit-ring {
    position: absolute;
    top: 50%; left: 50%;
    border-radius: 50%;
    transform-style: preserve-3d;
    pointer-events: none;
}

.orbit-ring-1 {
    width: 270px; height: 270px;
    margin-left: -135px; margin-top: -135px;
    border: 1.5px solid rgba(59, 130, 246, 0.22);
    box-shadow: 0 0 25px rgba(59, 130, 246, 0.08), inset 0 0 25px rgba(59, 130, 246, 0.05);
    animation: orbitSpin 32s linear infinite;
    transform: translateZ(25px);
}

.orbit-ring-2 {
    width: 380px; height: 380px;
    margin-left: -190px; margin-top: -190px;
    border: 1.5px dashed rgba(6, 214, 224, 0.2);
    box-shadow: 0 0 35px rgba(6, 214, 224, 0.06);
    animation: orbitSpin 48s linear infinite reverse;
    transform: translateZ(10px);
}

@keyframes orbitSpin {
    from { transform: translateZ(var(--ring-z, 20px)) rotate(0deg); }
    to   { transform: translateZ(var(--ring-z, 20px)) rotate(360deg); }
}

.orbit-ring-1 { --ring-z: 25px; }
.orbit-ring-2 { --ring-z: 10px; }

/* Orbiting Photons (Energy Sparks) */
.orbit-photon {
    position: absolute;
    width: 6px; height: 6px;
    border-radius: 50%;
    background: #ffffff;
    pointer-events: none;
    box-shadow: 0 0 10px #06d6e0, 0 0 20px #3b82f6, 0 0 30px #ffffff;
}

.photon-1 {
    top: 50%; left: -3px;
    transform: translateY(-50%) translateZ(10px);
    animation: photonPulse 2s ease-in-out infinite alternate;
}

.photon-2 {
    top: 50%; right: -3px;
    transform: translateY(-50%) translateZ(10px);
    animation: photonPulse 2.5s ease-in-out infinite alternate;
}

@keyframes photonPulse {
    0% { transform: translateY(-50%) translateZ(10px) scale(0.8); opacity: 0.6; }
    100% { transform: translateY(-50%) translateZ(10px) scale(1.4); opacity: 1; }
}

/* 3D Floating Satellites (Zero Rotation — Mathematical Circular Trajectory) */
:root {
    --orbit-r1: 135px;
    --orbit-r2: 190px;
}

.orbit-item {
    position: absolute;
    top: 50%; left: 50%;
    width: 56px; height: 56px;
    margin-left: -28px; margin-top: -28px;
    border-radius: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1.5px solid;
    pointer-events: auto;
    cursor: pointer;
    transform-style: preserve-3d;
    box-shadow: 0 14px 28px rgba(0, 0, 0, 0.45), inset 0 1px 1.5px rgba(255, 255, 255, 0.35);
    transition: box-shadow 0.3s ease, border-color 0.3s ease;
    text-decoration: none;
    z-index: 20;
}

.orbit-item:hover {
    z-index: 60;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.6), 0 0 25px currentColor;
}

.orbit-sat-1 {
    animation: orbitZeroRotation1_A 32s linear infinite;
}

.orbit-sat-2 {
    animation: orbitZeroRotation1_B 32s linear infinite;
}

.orbit-sat-3 {
    animation: orbitZeroRotation2_A 48s linear infinite;
}

.orbit-sat-4 {
    animation: orbitZeroRotation2_B 48s linear infinite;
}

/* Ring 1 Orbits (R = var(--orbit-r1), z = 45px) — 100% Horizontal */
@keyframes orbitZeroRotation1_A {
    from {
        transform: rotate(270deg) translateX(var(--orbit-r1)) rotate(-270deg) translateZ(45px);
    }
    to {
        transform: rotate(630deg) translateX(var(--orbit-r1)) rotate(-630deg) translateZ(45px);
    }
}

@keyframes orbitZeroRotation1_B {
    from {
        transform: rotate(90deg) translateX(var(--orbit-r1)) rotate(-90deg) translateZ(45px);
    }
    to {
        transform: rotate(450deg) translateX(var(--orbit-r1)) rotate(-450deg) translateZ(45px);
    }
}

/* Ring 2 Orbits (R = var(--orbit-r2), z = 35px, reverse) — 100% Horizontal */
@keyframes orbitZeroRotation2_A {
    from {
        transform: rotate(330deg) translateX(var(--orbit-r2)) rotate(-330deg) translateZ(35px);
    }
    to {
        transform: rotate(-30deg) translateX(var(--orbit-r2)) rotate(30deg) translateZ(35px);
    }
}

@keyframes orbitZeroRotation2_B {
    from {
        transform: rotate(150deg) translateX(var(--orbit-r2)) rotate(-150deg) translateZ(35px);
    }
    to {
        transform: rotate(-210deg) translateX(var(--orbit-r2)) rotate(210deg) translateZ(35px);
    }
}

.orbit-item .orbit-glow {
    position: absolute;
    inset: -8px;
    border-radius: 24px;
    opacity: 0;
    transition: opacity 0.3s ease;
    filter: blur(10px);
    pointer-events: none;
    z-index: -1;
}

.orbit-item:hover .orbit-glow {
    opacity: 1;
}

.orbit-item i {
    transform: translateZ(15px);
    filter: drop-shadow(0 2px 8px currentColor);
}

/* Floating Smart HUD Popup (Ultra High Contrast, Crisp Typography & Vivid Glow) */
.orbital-floating-hud {
    position: absolute;
    top: 50%; left: 50%;
    transform: translate(-50%, -50%) translate3d(var(--hud-x, 0px), var(--hud-y, 0px), 110px) scale(0.9);
    background: rgba(10, 15, 30, 0.98);
    backdrop-filter: blur(28px);
    -webkit-backdrop-filter: blur(28px);
    border: 1.5px solid var(--hud-theme-color, rgba(6, 214, 224, 0.6));
    border-radius: 16px;
    padding: 12px 18px;
    min-width: 195px;
    color: #ffffff;
    pointer-events: none;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.22s ease, transform 0.22s cubic-bezier(0.16, 1, 0.3, 1), visibility 0.22s ease, border-color 0.22s ease, box-shadow 0.22s ease;
    box-shadow: 0 20px 48px rgba(0, 0, 0, 0.95), 0 0 35px var(--hud-theme-glow, rgba(6, 214, 224, 0.5)), inset 0 1px 1.5px rgba(255, 255, 255, 0.4);
    display: flex;
    flex-direction: column;
    gap: 4px;
    z-index: 9999;
}

.orbital-floating-hud.active {
    opacity: 1;
    visibility: visible;
    transform: translate(-50%, -50%) translate3d(var(--hud-x, 0px), var(--hud-y, 0px), 130px) scale(1);
}

.hud-header {
    display: flex;
    align-items: center;
    gap: 10px;
}

.hud-icon {
    font-size: 1.1rem;
    color: var(--hud-theme-color, var(--clr-speedtest));
    display: flex;
    align-items: center;
    filter: drop-shadow(0 0 8px var(--hud-theme-color, var(--clr-speedtest)));
}

.hud-title {
    font-size: 0.96rem;
    font-weight: 700;
    color: #ffffff;
    white-space: nowrap;
    letter-spacing: -0.01em;
    text-shadow: 0 2px 6px rgba(0, 0, 0, 0.8);
}

.hud-link-icon {
    font-size: 0.8rem;
    color: var(--hud-theme-color, var(--clr-speedtest));
    margin-left: auto;
    opacity: 1;
    filter: drop-shadow(0 0 6px var(--hud-theme-color, var(--clr-speedtest)));
}

.hud-desc {
    font-size: 0.78rem;
    font-weight: 500;
    color: #e2e8f0;
    white-space: nowrap;
    line-height: 1.3;
    padding-left: 2px;
    text-shadow: 0 1px 4px rgba(0, 0, 0, 0.9);
}

.orbit-item:hover {
    z-index: 500 !important;
    box-shadow: 0 22px 50px rgba(0, 0, 0, 0.8), 0 0 35px currentColor;
    transform: scale(1.2);
}

/* Satellite Themes */
.orbit-item.oi-specinfo {
    background: rgba(59, 130, 246, 0.2);
    border-color: rgba(59, 130, 246, 0.5);
    color: var(--clr-specinfo);
}
.orbit-item.oi-specinfo .orbit-glow {
    background: radial-gradient(circle, rgba(59, 130, 246, 0.7), transparent 70%);
}

.orbit-item.oi-speedtest {
    background: rgba(6, 214, 224, 0.2);
    border-color: rgba(6, 214, 224, 0.5);
    color: var(--clr-speedtest);
}
.orbit-item.oi-speedtest .orbit-glow {
    background: radial-gradient(circle, rgba(6, 214, 224, 0.7), transparent 70%);
}

.orbit-item.oi-eco {
    background: rgba(16, 185, 129, 0.2);
    border-color: rgba(16, 185, 129, 0.5);
    color: var(--clr-eco);
}
.orbit-item.oi-eco .orbit-glow {
    background: radial-gradient(circle, rgba(16, 185, 129, 0.7), transparent 70%);
}

.orbit-item.oi-sentinel {
    background: rgba(139, 92, 246, 0.2);
    border-color: rgba(139, 92, 246, 0.5);
    color: var(--clr-sentinel);
}
.orbit-item.oi-sentinel .orbit-glow {
    background: radial-gradient(circle, rgba(139, 92, 246, 0.7), transparent 70%);
}

/* 9. Section Shared
   ========================================================================== */
.section-header {
    text-align: center;
    max-width: 680px;
    margin: 0 auto 72px auto;
}

.section-header.align-left {
    text-align: left;
    margin-left: 0;
    margin-bottom: 36px;
}

.section-title {
    font-size: clamp(2rem, 3.5vw, 2.6rem);
    font-weight: 800;
    letter-spacing: -0.025em;
    margin-bottom: 18px;
    line-height: 1.15;
}

.section-desc {
    font-size: 1.1rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

.badge {
    background: rgba(139, 92, 246, 0.1);
    color: var(--clr-sentinel);
    border: 1px solid rgba(139, 92, 246, 0.2);
    padding: 5px 14px;
    border-radius: 9999px;
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    margin-bottom: 18px;
    display: inline-block;
}
/* 9.5 System Terminal Section
   ========================================================================== */
.terminal-section {
    padding: 0 0 60px 0;
    position: relative;
    z-index: 10;
}

.system-terminal {
    background: rgba(13, 17, 23, 0.7);
    border: 1px solid var(--border-subtle);
    border-radius: 16px;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    overflow: hidden;
    max-width: 800px;
    margin: 0 auto;
    box-shadow: 0 20px 40px rgba(0,0,0,0.4), inset 0 1px 0 rgba(255,255,255,0.05);
}

.term-header {
    background: rgba(255, 255, 255, 0.03);
    padding: 12px 16px;
    display: flex;
    align-items: center;
    border-bottom: 1px solid var(--border-subtle);
}

.term-dots {
    display: flex;
    gap: 8px;
}

.term-dots span {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    display: block;
}

.term-dots span:nth-child(1) { background: #ff5f56; }
.term-dots span:nth-child(2) { background: #ffbd2e; }
.term-dots span:nth-child(3) { background: #27c93f; }

.term-title {
    margin: 0 auto;
    transform: translateX(-24px); /* offset for dots to keep it truly centered */
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--text-muted);
}

.term-body {
    padding: 24px;
    font-family: var(--font-mono);
    font-size: 0.95rem;
    color: var(--clr-eco); /* green terminal text */
    min-height: 120px;
    line-height: 1.6;
}

.term-cursor {
    display: inline-block;
    width: 10px;
    animation: blink 1s step-end infinite;
}

@keyframes blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0; }
}

/* 10. Tools Section — Bento Grid
   ========================================================================== */
.tools-section {
    padding: 60px 0 100px 0; /* Reduced top padding since terminal is above it */
}

.section-header {
    text-align: center;
    max-width: 600px;
    margin: 0 auto 56px auto;
}

.section-header.align-left {
    text-align: left;
    margin: 0 0 40px 0;
}

.badge {
    background: rgba(255, 255, 255, 0.05);
    padding: 6px 14px;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
}

.bento-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    grid-template-rows: auto;
    gap: 24px;
}

/* Featured card spans full width */
.bento-grid .tool-card.card-featured {
    grid-column: span 2;
    grid-row: span 1;
}

/* Tool Card Base */
.tool-card {
    position: relative;
    background: var(--bg-surface);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--border-subtle);
    border-radius: 24px;
    padding: 36px;
    display: flex;
    flex-direction: column;
    transition: var(--transition);
    overflow: hidden;
    cursor: pointer;
    transform-style: preserve-3d;
    perspective: 1000px;
}

/* Shine border on hover */
.tool-card::before {
    content: '';
    position: absolute;
    inset: -1px;
    border-radius: 25px;
    padding: 1px;
    background: conic-gradient(
        from var(--shine-angle, 0deg),
        transparent 0%,
        rgba(255, 255, 255, 0.08) 10%,
        transparent 20%
    );
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    opacity: 0;
    transition: opacity 0.5s ease;
    pointer-events: none;
    z-index: 1;
}

.tool-card:hover::before {
    opacity: 1;
    animation: shineRotate 3s linear infinite;
}

@keyframes shineRotate {
    from { --shine-angle: 0deg; }
    to   { --shine-angle: 360deg; }
}

@property --shine-angle {
    syntax: "<angle>";
    initial-value: 0deg;
    inherits: false;
}

/* Glow spot behind card on hover */
.tool-card::after {
    content: '';
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 100%;
    border-radius: 24px;
    opacity: 0;
    transition: opacity 0.5s ease;
    pointer-events: none;
    z-index: 0;
}

.tool-card:hover {
    background: var(--bg-surface-hover);
    border-color: var(--border-medium);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.2);
}

.tool-card:hover::after {
    opacity: 1;
}

.tool-card > * {
    position: relative;
    z-index: 2;
}

/* Tool header */
.tool-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 24px;
}

.tool-icon-wrap {
    width: 56px;
    height: 56px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    transition: var(--transition);
}

.tool-badge {
    font-size: 0.68rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    padding: 5px 14px;
    border-radius: 9999px;
}

.tool-name {
    font-size: 1.4rem;
    font-weight: 800;
    margin-bottom: 6px;
    letter-spacing: -0.01em;
}

.tool-tagline {
    font-size: 0.82rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    margin-bottom: 20px;
}

.tool-description {
    font-size: 0.95rem;
    color: var(--text-secondary);
    margin-bottom: 28px;
    flex-grow: 1;
    line-height: 1.7;
}

.tool-bullets {
    list-style: none;
    margin-bottom: 32px;
}

.tool-bullets li {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 10px;
}

.tool-bullets li i {
    font-size: 0.75rem;
    flex-shrink: 0;
}

.tool-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    width: 100%;
    padding: 14px 20px;
    border-radius: 14px;
    font-weight: 600;
    font-size: 0.9rem;
    text-decoration: none;
    border: 1px solid transparent;
    transition: var(--transition);
    margin-top: auto;
}

/* Featured card gets horizontal layout */
.card-featured .tool-card-inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: center;
}

.card-featured .tool-card-left {
    display: flex;
    flex-direction: column;
}

.card-featured .tool-card-right {
    display: flex;
    flex-direction: column;
    justify-content: center;
}

/* Card Themes
   ========================================================================== */
/* SpecInfo Blue */
.card-specinfo .tool-icon-wrap {
    background: rgba(59, 130, 246, 0.1);
    color: var(--clr-specinfo);
    border: 1px solid rgba(59, 130, 246, 0.15);
}
.card-specinfo .tool-badge {
    background: rgba(59, 130, 246, 0.1);
    color: var(--clr-specinfo);
}
.card-specinfo .tool-tagline { color: var(--clr-specinfo); }
.card-specinfo .tool-bullets li i { color: var(--clr-specinfo); }
.card-specinfo .tool-btn {
    background: rgba(59, 130, 246, 0.06);
    color: var(--clr-specinfo);
    border-color: rgba(59, 130, 246, 0.15);
}
.card-specinfo:hover {
    box-shadow: var(--glow-specinfo);
}
.card-specinfo:hover::after {
    background: radial-gradient(ellipse at 30% 0%, rgba(59, 130, 246, 0.06) 0%, transparent 70%);
}
.card-specinfo:hover .tool-btn {
    background: var(--clr-specinfo);
    color: var(--bg-void);
    box-shadow: 0 4px 20px rgba(59, 130, 246, 0.3);
}

/* Speedtest Cyan */
.card-speedtest .tool-icon-wrap {
    background: rgba(6, 214, 224, 0.1);
    color: var(--clr-speedtest);
    border: 1px solid rgba(6, 214, 224, 0.15);
}
.card-speedtest .tool-badge {
    background: rgba(6, 214, 224, 0.1);
    color: var(--clr-speedtest);
}
.card-speedtest .tool-tagline { color: var(--clr-speedtest); }
.card-speedtest .tool-bullets li i { color: var(--clr-speedtest); }
.card-speedtest .tool-btn {
    background: rgba(6, 214, 224, 0.06);
    color: var(--clr-speedtest);
    border-color: rgba(6, 214, 224, 0.15);
}
.card-speedtest:hover {
    box-shadow: var(--glow-speedtest);
}
.card-speedtest:hover::after {
    background: radial-gradient(ellipse at 30% 0%, rgba(6, 214, 224, 0.06) 0%, transparent 70%);
}
.card-speedtest:hover .tool-btn {
    background: var(--clr-speedtest);
    color: var(--bg-void);
    box-shadow: 0 4px 20px rgba(6, 214, 224, 0.3);
}

/* Eco Emerald */
.card-eco .tool-icon-wrap {
    background: rgba(16, 185, 129, 0.1);
    color: var(--clr-eco);
    border: 1px solid rgba(16, 185, 129, 0.15);
}
.card-eco .tool-badge {
    background: rgba(16, 185, 129, 0.1);
    color: var(--clr-eco);
}
.card-eco .tool-tagline { color: var(--clr-eco); }
.card-eco .tool-bullets li i { color: var(--clr-eco); }
.card-eco .tool-btn {
    background: rgba(16, 185, 129, 0.06);
    color: var(--clr-eco);
    border-color: rgba(16, 185, 129, 0.15);
}
.card-eco:hover {
    box-shadow: var(--glow-eco);
}
.card-eco:hover::after {
    background: radial-gradient(ellipse at 30% 0%, rgba(16, 185, 129, 0.06) 0%, transparent 70%);
}
.card-eco:hover .tool-btn {
    background: var(--clr-eco);
    color: var(--bg-void);
    box-shadow: 0 4px 20px rgba(16, 185, 129, 0.3);
}

/* Sentinel Purple */
.card-sentinel .tool-icon-wrap {
    background: rgba(139, 92, 246, 0.1);
    color: var(--clr-sentinel);
    border: 1px solid rgba(139, 92, 246, 0.15);
}
.card-sentinel .tool-badge {
    background: rgba(139, 92, 246, 0.1);
    color: var(--clr-sentinel);
}
.card-sentinel .tool-tagline { color: var(--clr-sentinel); }
.card-sentinel .tool-bullets li i { color: var(--clr-sentinel); }
.card-sentinel .tool-btn {
    background: rgba(139, 92, 246, 0.06);
    color: var(--clr-sentinel);
    border-color: rgba(139, 92, 246, 0.15);
}
.card-sentinel:hover {
    box-shadow: var(--glow-sentinel);
}
.card-sentinel:hover::after {
    background: radial-gradient(ellipse at 30% 0%, rgba(139, 92, 246, 0.06) 0%, transparent 70%);
}
.card-sentinel:hover .tool-btn {
    background: var(--clr-sentinel);
    color: var(--bg-void);
    box-shadow: 0 4px 20px rgba(139, 92, 246, 0.3);
}

/* PRO Gold/Amber */
.card-pro .tool-icon-wrap {
    background: rgba(245, 158, 11, 0.1);
    color: var(--clr-pro);
    border: 1px solid rgba(245, 158, 11, 0.15);
}
.card-pro .tool-badge {
    background: rgba(245, 158, 11, 0.1);
    color: var(--clr-pro);
}
.card-pro .tool-tagline { color: var(--clr-pro); }
.card-pro .tool-bullets li i { color: var(--clr-pro); }
.card-pro .tool-btn {
    background: rgba(245, 158, 11, 0.06);
    color: var(--clr-pro);
    border-color: rgba(245, 158, 11, 0.15);
}
.card-pro:hover {
    box-shadow: 0 0 40px rgba(245, 158, 11, 0.1);
}
.card-pro .btn-disabled {
    opacity: 0.6;
    cursor: not-allowed;
}
.card-pro:hover .tool-btn:not(.btn-disabled) {
    background: var(--clr-pro);
    color: var(--bg-void);
}

/* 11. Interactive Assistant Section
   ========================================================================== */
.assistant-section {
    padding: 100px 0;
}

.assistant-box {
    background: var(--bg-surface);
    border: 1px solid var(--border-subtle);
    border-radius: 32px;
    padding: 56px;
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 60px;
    align-items: center;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    position: relative;
    overflow: hidden;
}

/* Subtle gradient glow inside the box */
.assistant-box::before {
    content: '';
    position: absolute;
    top: -50%; right: -30%;
    width: 400px; height: 400px;
    background: radial-gradient(circle, rgba(139, 92, 246, 0.06) 0%, transparent 70%);
    pointer-events: none;
}

.quiz-options {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.quiz-opt {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-subtle);
    border-radius: 16px;
    padding: 18px 24px;
    display: flex;
    align-items: center;
    gap: 18px;
    color: var(--text-primary);
    cursor: pointer;
    font-family: var(--font-sans);
    font-size: 0.93rem;
    font-weight: 600;
    text-align: left;
    transition: var(--transition);
    width: 100%;
}

.opt-icon {
    width: 44px;
    height: 44px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.03);
    font-size: 1.2rem;
    transition: var(--transition);
    color: var(--text-secondary);
    flex-shrink: 0;
}

.quiz-opt:hover {
    background: rgba(255, 255, 255, 0.04);
    border-color: var(--border-medium);
    transform: translateX(6px);
}

.quiz-opt.active {
    background: rgba(59, 130, 246, 0.06);
    border-color: var(--clr-specinfo);
    box-shadow: 0 0 24px rgba(59, 130, 246, 0.08);
}

.quiz-opt.active .opt-icon {
    background: var(--clr-specinfo);
    color: var(--bg-void);
}

/* Theme variations for active quiz */
.quiz-opt[data-target="speedtest"].active {
    background: rgba(6, 214, 224, 0.06);
    border-color: var(--clr-speedtest);
    box-shadow: 0 0 24px rgba(6, 214, 224, 0.08);
}
.quiz-opt[data-target="speedtest"].active .opt-icon {
    background: var(--clr-speedtest);
    color: var(--bg-void);
}

.quiz-opt[data-target="eco"].active {
    background: rgba(16, 185, 129, 0.06);
    border-color: var(--clr-eco);
    box-shadow: 0 0 24px rgba(16, 185, 129, 0.08);
}
.quiz-opt[data-target="eco"].active .opt-icon {
    background: var(--clr-eco);
    color: var(--bg-void);
}

.quiz-opt[data-target="sentinel"].active {
    background: rgba(139, 92, 246, 0.06);
    border-color: var(--clr-sentinel);
    box-shadow: 0 0 24px rgba(139, 92, 246, 0.08);
}
.quiz-opt[data-target="sentinel"].active .opt-icon {
    background: var(--clr-sentinel);
    color: var(--bg-void);
}

/* Result panel */
.assistant-result-pane {
    height: 100%;
    min-height: 300px;
    background: rgba(255, 255, 255, 0.015);
    border: 1px dashed rgba(255, 255, 255, 0.08);
    border-radius: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 36px;
    position: relative;
    overflow: hidden;
}

.result-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    color: var(--text-muted);
    gap: 18px;
    max-width: 260px;
}

.pulse-circle {
    width: 68px;
    height: 68px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.03);
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.6rem;
    animation: doublePulse 3s infinite ease-in-out;
}

.result-card {
    width: 100%;
    animation: slideUpFade 0.5s var(--ease-out-expo) forwards;
}

.result-card.hidden {
    display: none;
}

.result-label {
    font-size: 0.72rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--text-muted);
    margin-bottom: 22px;
}

.result-content-box {
    display: flex;
    gap: 24px;
    align-items: flex-start;
}

.result-icon {
    width: 60px;
    height: 60px;
    border-radius: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.6rem;
    background: rgba(255, 255, 255, 0.04);
    flex-shrink: 0;
}

.result-details {
    flex-grow: 1;
}

.result-title {
    font-size: 1.5rem;
    font-weight: 800;
    margin-bottom: 10px;
}

.result-desc {
    color: var(--text-secondary);
    font-size: 0.93rem;
    margin-bottom: 24px;
    line-height: 1.7;
}

/* Result theme colors */
.result-card[data-theme="specinfo"] .result-icon { background: rgba(59, 130, 246, 0.12); color: var(--clr-specinfo); }
.result-card[data-theme="specinfo"] .result-title { color: var(--clr-specinfo); }
.result-card[data-theme="specinfo"] .btn-primary { background: var(--clr-specinfo); box-shadow: 0 4px 18px rgba(59, 130, 246, 0.25); }

.result-card[data-theme="speedtest"] .result-icon { background: rgba(6, 214, 224, 0.12); color: var(--clr-speedtest); }
.result-card[data-theme="speedtest"] .result-title { color: var(--clr-speedtest); }
.result-card[data-theme="speedtest"] .btn-primary { background: var(--clr-speedtest); box-shadow: 0 4px 18px rgba(6, 214, 224, 0.25); }

.result-card[data-theme="eco"] .result-icon { background: rgba(16, 185, 129, 0.12); color: var(--clr-eco); }
.result-card[data-theme="eco"] .result-title { color: var(--clr-eco); }
.result-card[data-theme="eco"] .btn-primary { background: var(--clr-eco); box-shadow: 0 4px 18px rgba(16, 185, 129, 0.25); }

.result-card[data-theme="sentinel"] .result-icon { background: rgba(139, 92, 246, 0.12); color: var(--clr-sentinel); }
.result-card[data-theme="sentinel"] .result-title { color: var(--clr-sentinel); }
.result-card[data-theme="sentinel"] .btn-primary { background: var(--clr-sentinel); box-shadow: 0 4px 18px rgba(139, 92, 246, 0.25); }


/* 12. Values / Why Us Section
   ========================================================================== */
.values-section {
    padding: 100px 0;
    position: relative;
}

.values-section::before {
    content: '';
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 1px;
    background: linear-gradient(90deg, transparent 0%, var(--border-subtle) 20%, var(--clr-specinfo) 50%, var(--border-subtle) 80%, transparent 100%);
    opacity: 0.5;
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
    margin-top: 64px;
}

.value-item {
    background: var(--bg-surface);
    border: 1px solid var(--border-subtle);
    border-radius: 24px;
    padding: 40px;
    transition: var(--transition);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    position: relative;
    overflow: hidden;
}

.value-item::before {
    content: '';
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background: radial-gradient(circle at 50% 0%, rgba(59, 130, 246, 0.04) 0%, transparent 60%);
    opacity: 0;
    transition: opacity 0.5s ease;
    pointer-events: none;
}

.value-item:hover {
    background: var(--bg-surface-hover);
    border-color: var(--border-medium);
    transform: translateY(-5px);
}

.value-item:hover::before {
    opacity: 1;
}

.value-icon {
    width: 60px;
    height: 60px;
    border-radius: 18px;
    background: rgba(59, 130, 246, 0.08);
    color: var(--clr-specinfo);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-bottom: 24px;
    border: 1px solid rgba(59, 130, 246, 0.12);
}

.value-item:nth-child(2) .value-icon {
    background: rgba(16, 185, 129, 0.08);
    color: var(--clr-eco);
    border-color: rgba(16, 185, 129, 0.12);
}

.value-item:nth-child(3) .value-icon {
    background: rgba(6, 214, 224, 0.08);
    color: var(--clr-speedtest);
    border-color: rgba(6, 214, 224, 0.12);
}

.value-item h3 {
    font-size: 1.25rem;
    font-weight: 800;
    margin-bottom: 12px;
    letter-spacing: -0.01em;
}

.value-item p {
    color: var(--text-secondary);
    font-size: 0.93rem;
    line-height: 1.7;
}

/* 12.5 FAQ Section
   ========================================================================== */
.faq-section {
    padding: 100px 0;
    position: relative;
}

.faq-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
}

.faq-item {
    background: var(--bg-surface);
    border: 1px solid var(--border-subtle);
    border-radius: 20px;
    padding: 32px;
    transition: var(--transition);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

.faq-item:hover {
    background: var(--bg-surface-hover);
    border-color: var(--border-medium);
    transform: translateY(-4px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.faq-item h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 14px;
    color: var(--text-primary);
}

.faq-item p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.7;
}

@media (max-width: 900px) {
    .faq-grid {
        grid-template-columns: 1fr;
    }
}

/* 13. Footer
   ========================================================================== */
.main-footer {
    background-color: rgba(3, 5, 7, 0.95);
    padding: 80px 0 36px 0;
    position: relative;
}

.main-footer::before {
    content: '';
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 1px;
    background: linear-gradient(90deg, transparent 0%, rgba(139, 92, 246, 0.3) 30%, rgba(6, 214, 224, 0.3) 70%, transparent 100%);
}

.footer-container {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr;
    gap: 60px;
}

.footer-brand {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.footer-brand .logo {
    margin-bottom: 20px;
}

.footer-desc {
    color: var(--text-secondary);
    font-size: 0.93rem;
    margin-bottom: 30px;
    max-width: 400px;
    line-height: 1.7;
}

.social-links {
    display: flex;
    gap: 12px;
}

.social-links a {
    width: 40px;
    height: 40px;
    border-radius: 12px;
    border: 1px solid var(--border-subtle);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition);
    font-size: 0.95rem;
}

.social-links a.social-specinfo { color: var(--clr-specinfo); }
.social-links a.social-sentinel { color: var(--clr-sentinel); }
.social-links a.social-speedtest { color: var(--clr-speedtest); }
.social-links a.social-eco { color: var(--clr-eco); }

.social-links a:hover {
    transform: translateY(-3px);
}

.social-links a.social-specinfo:hover {
    border-color: rgba(59, 130, 246, 0.4);
    background: rgba(59, 130, 246, 0.08);
    box-shadow: 0 0 18px rgba(59, 130, 246, 0.15);
}

.social-links a.social-sentinel:hover {
    border-color: rgba(139, 92, 246, 0.4);
    background: rgba(139, 92, 246, 0.08);
    box-shadow: 0 0 18px rgba(139, 92, 246, 0.15);
}

.social-links a.social-speedtest:hover {
    border-color: rgba(6, 214, 224, 0.4);
    background: rgba(6, 214, 224, 0.08);
    box-shadow: 0 0 18px rgba(6, 214, 224, 0.15);
}

.social-links a.social-eco:hover {
    border-color: rgba(16, 185, 129, 0.4);
    background: rgba(16, 185, 129, 0.08);
    box-shadow: 0 0 18px rgba(16, 185, 129, 0.15);
}

.footer-links h4 {
    font-size: 0.95rem;
    font-weight: 800;
    margin-bottom: 24px;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--text-primary);
}

.footer-links ul {
    list-style: none;
}

.footer-links ul li {
    margin-bottom: 12px;
}

.footer-links ul li a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.93rem;
    transition: var(--transition-fast);
    display: inline-block;
}

.footer-links ul li a:hover {
    color: var(--text-primary);
    transform: translateX(4px);
}

.footer-copy {
    grid-column: span 3;
    border-top: 1px solid var(--border-subtle);
    padding-top: 28px;
    margin-top: 20px;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 0.82rem;
    color: var(--text-muted);
}

/* 14. Animations
   ========================================================================== */
@keyframes pulseGlow {
    0%, 100% {
        opacity: 0.85;
        filter: drop-shadow(0 0 6px rgba(6, 214, 224, 0.3));
    }
    50% {
        opacity: 1;
        filter: drop-shadow(0 0 18px rgba(6, 214, 224, 0.7));
    }
}

@keyframes doublePulse {
    0%, 100% {
        transform: scale(1);
        box-shadow: 0 0 0 0 rgba(255, 255, 255, 0.04);
    }
    50% {
        transform: scale(1.05);
        box-shadow: 0 0 0 18px rgba(255, 255, 255, 0);
    }
}

@keyframes slideUpFade {
    from { opacity: 0; transform: translateY(20px); }
    to   { opacity: 1; transform: translateY(0); }
}

@keyframes floatAnim {
    0%   { transform: translateY(0); }
    50%  { transform: translateY(-12px); }
    100% { transform: translateY(0); }
}

.floating-anim {
    animation: floatAnim 6s ease-in-out infinite;
}

/* Scroll reveal */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s var(--ease-out-expo), transform 0.8s var(--ease-out-expo);
}

.reveal.revealed {
    opacity: 1;
    transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }
.reveal-delay-5 { transition-delay: 0.5s; }

/* 15. Responsive
   ========================================================================== */
@media (max-width: 1100px) {
    .card-featured .tool-card-inner {
        grid-template-columns: 1fr;
        gap: 24px;
    }
}

@media (max-width: 1024px) {
    .hero-container {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }

    .hero-content {
        align-items: center;
    }

    .hero-subtitle {
        margin-left: auto;
        margin-right: auto;
    }

    .hero-actions {
        justify-content: center;
    }

    .hero-features {
        justify-content: center;
    }

    :root {
        --orbit-r1: 110px;
        --orbit-r2: 155px;
    }

    .orbital-3d-scene {
        width: 360px;
        height: 360px;
    }

    .orbital-wrapper {
        width: 320px;
        height: 320px;
    }

    .orbital-center {
        width: 108px;
        height: 108px;
        margin-left: -54px;
        margin-top: -54px;
    }

    .orbital-center .logo-icon {
        font-size: 2.6rem;
    }

    .orbit-ring-1 {
        width: 220px;
        height: 220px;
        margin-left: -110px;
        margin-top: -110px;
    }

    .orbit-ring-2 {
        width: 310px;
        height: 310px;
        margin-left: -155px;
        margin-top: -155px;
    }

    .assistant-box {
        grid-template-columns: 1fr;
        gap: 40px;
        padding: 40px;
    }

}

@media (max-width: 768px) {
    :root {
        --orbit-r1: 85px;
        --orbit-r2: 125px;
    }

    html {
        font-size: 15px;
    }

    .main-header {
        width: calc(100% - 24px);
        top: 10px;
        border-radius: 16px;
    }

    .nav-menu {
        display: none;
        position: absolute;
        top: calc(100% + 12px);
        left: 0;
        right: 0;
        background: rgba(6, 9, 16, 0.95);
        backdrop-filter: blur(24px);
        -webkit-backdrop-filter: blur(24px);
        border: 1px solid var(--border-subtle);
        border-radius: 16px;
        padding: 16px;
        flex-direction: column;
        gap: 4px;
        box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
    }

    .nav-menu.open {
        display: flex;
    }

    .nav-link {
        padding: 12px 16px;
        border-radius: 12px;
        width: 100%;
    }

    .nav-link:hover {
        background: rgba(255, 255, 255, 0.05);
    }

    .hamburger-btn {
        display: block;
    }

    .header-cta {
        display: none;
    }

    .hero-section {
        padding: 120px 0 60px 0;
        min-height: auto;
    }

    .hero-actions {
        flex-direction: column;
        width: 100%;
        max-width: 320px;
        margin-left: auto;
        margin-right: auto;
    }

    .hero-actions .btn {
        width: 100%;
    }

    .btn-lg {
        padding: 14px 32px;
        font-size: 1rem;
    }

    .orbital-3d-scene {
        width: 290px;
        height: 290px;
    }

    .orbital-aura {
        width: 270px;
        height: 270px;
        filter: blur(32px);
    }

    .orbital-wrapper {
        width: 260px;
        height: 260px;
    }

    .orbital-center {
        width: 88px;
        height: 88px;
        margin-left: -44px;
        margin-top: -44px;
        border-radius: 22px;
    }

    .orbital-center-glass {
        border-radius: 22px;
    }

    .orbital-center-glow {
        border-radius: 26px;
    }

    .orbital-center .logo-icon {
        font-size: 2.2rem;
    }

    .orbit-ring-1 {
        width: 170px;
        height: 170px;
        margin-left: -85px;
        margin-top: -85px;
    }

    .orbit-ring-2 {
        width: 250px;
        height: 250px;
        margin-left: -125px;
        margin-top: -125px;
    }

    .orbit-item {
        width: 44px;
        height: 44px;
        margin-left: -22px;
        margin-top: -22px;
        border-radius: 14px;
        font-size: 1.05rem;
    }

    .bento-grid {
        grid-template-columns: 1fr;
    }

    .bento-grid .tool-card.card-featured {
        grid-column: span 1;
    }

    .card-featured .tool-card-inner {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .section-title {
        font-size: 1.8rem;
    }

    .tools-section {
        padding: 80px 0;
    }

    .assistant-section {
        padding: 80px 0;
    }

    .values-section {
        padding: 80px 0;
    }

    .values-grid {
        grid-template-columns: 1fr;
    }

    .footer-container {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .footer-copy {
        grid-column: span 1;
        text-align: center;
    }

    .result-content-box {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }

    .assistant-box {
        padding: 28px;
        border-radius: 24px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }

    .hero-title {
        font-size: 2.2rem;
    }

    .tool-card {
        padding: 28px;
    }

    .value-item {
        padding: 28px;
    }

    .orbital-3d-scene {
        width: 260px;
        height: 260px;
    }

    .orbital-wrapper {
        width: 240px;
        height: 240px;
    }
}

/* Accessibility */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}