/* ============================================
   YELLOWSYS - PREMIUM EDITION
   Data & AI Consulting Website
   ============================================ */

/* Google Fonts Import */
@import url('https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&family=Inter:wght@400;500;600&family=JetBrains+Mono:wght@400;500;600&display=swap');

/* ===========================================
   CSS VARIABLES
   =========================================== */
:root {
    /* Colors */
    --bg-primary: #050507;
    --bg-secondary: #0a0a0f;
    --bg-tertiary: #0f0f15;
    
    --yellow-primary: #FFD000;
    --yellow-secondary: #FFDF4D;
    --yellow-glow: rgba(255, 208, 0, 0.5);
    --yellow-subtle: rgba(255, 208, 0, 0.08);
    --yellow-border: rgba(255, 208, 0, 0.2);
    
    --text-primary: #ffffff;
    --text-secondary: #b4b4c4;
    --text-muted: #6b6b7b;
    
    --card-bg: rgba(255, 255, 255, 0.02);
    --card-border: rgba(255, 255, 255, 0.06);
    --card-hover: rgba(255, 255, 255, 0.05);
    
    /* Typography */
    --font-display: 'Manrope', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'JetBrains Mono', 'SF Mono', Consolas, monospace;
    
    /* Sizing */
    --container-max: 1200px;
    --section-gap: 5rem;
    --border-radius: 12px;
    
    /* Transitions */
    --ease-out-expo: cubic-bezier(0.19, 1, 0.22, 1);
    --ease-out-quart: cubic-bezier(0.25, 1, 0.5, 1);
    --transition-fast: 0.2s var(--ease-out-quart);
    --transition-medium: 0.4s var(--ease-out-expo);
    --transition-slow: 0.8s var(--ease-out-expo);
}

/* ===========================================
   LIGHT MODE
   =========================================== */
[data-theme="light"] {
    --bg-primary: #ffffff;
    --bg-secondary: #f8f9fc;
    --bg-tertiary: #f0f2f5;
    
    --yellow-primary: #c99a00;
    --yellow-secondary: #a88200;
    --yellow-glow: rgba(201, 154, 0, 0.4);
    --yellow-subtle: rgba(201, 154, 0, 0.1);
    --yellow-border: rgba(201, 154, 0, 0.25);
    
    --text-primary: #111111;
    --text-secondary: #555566;
    --text-muted: #888899;
    
    --card-bg: rgba(0, 0, 0, 0.02);
    --card-border: rgba(0, 0, 0, 0.08);
    --card-hover: rgba(0, 0, 0, 0.04);
}

[data-theme="light"] body::before {
    opacity: 0.015;
}

[data-theme="light"] .navbar {
    background: rgba(255, 255, 255, 0.85);
}

[data-theme="light"] .navbar.scrolled {
    background: rgba(255, 255, 255, 0.95);
}

[data-theme="light"] .hero-gradient {
    background: 
        radial-gradient(ellipse 80% 60% at 30% 20%, rgba(201, 154, 0, 0.12) 0%, transparent 50%),
        radial-gradient(ellipse 60% 50% at 70% 70%, rgba(201, 154, 0, 0.08) 0%, transparent 50%),
        radial-gradient(ellipse 50% 40% at 50% 50%, rgba(201, 154, 0, 0.06) 0%, transparent 60%);
}

[data-theme="light"] .hero-grid {
    background-image: 
        linear-gradient(rgba(0, 0, 0, 0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 0, 0, 0.04) 1px, transparent 1px);
}

[data-theme="light"] .orb-1 {
    background: radial-gradient(circle, rgba(201, 154, 0, 0.15) 0%, transparent 70%);
}

[data-theme="light"] .orb-2 {
    background: radial-gradient(circle, rgba(201, 154, 0, 0.1) 0%, transparent 70%);
}

[data-theme="light"] .orb-3 {
    background: radial-gradient(circle, rgba(0, 0, 0, 0.04) 0%, transparent 70%);
}

[data-theme="light"] .typewriter-text {
    background: linear-gradient(135deg, #111 30%, var(--yellow-primary) 70%);
    -webkit-background-clip: text;
    background-clip: text;
}

[data-theme="light"] .text-gradient-flow {
    background: linear-gradient(135deg, #111 0%, var(--yellow-primary) 50%, var(--yellow-secondary) 100%);
    background-size: 200% 200%;
    -webkit-background-clip: text;
    background-clip: text;
}

[data-theme="light"] .btn-primary {
    box-shadow: 0 4px 20px rgba(201, 154, 0, 0.25);
}

[data-theme="light"] .dropdown-panel {
    background: #ffffff;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

[data-theme="light"] .step-marker {
    background: #ffffff;
}

[data-theme="light"] .blob-inner {
    background: linear-gradient(135deg, var(--yellow-primary), var(--yellow-secondary));
}

[data-theme="light"] .blob-text {
    color: #ffffff;
}

[data-theme="light"] .cursor-glow {
    background: radial-gradient(circle, rgba(201, 154, 0, 0.2) 0%, transparent 70%);
}

[data-theme="light"] .scroll-progress {
    background: linear-gradient(90deg, var(--yellow-primary), var(--yellow-secondary));
}

/* ===========================================
   RESET & BASE
   =========================================== */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-body);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    font-weight: 400;
}

/* Noise texture overlay */
body::before {
    content: '';
    position: fixed;
    inset: 0;
    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='0.8' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
    opacity: 0.03;
    pointer-events: none;
    z-index: 9999;
}

::selection {
    background: var(--yellow-primary);
    color: var(--bg-primary);
}

a {
    color: inherit;
    text-decoration: none;
}

button {
    font-family: inherit;
    background: none;
    border: none;
    cursor: pointer;
    color: inherit;
}

ul, ol {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* ===========================================
   CURSOR GLOW
   =========================================== */
.cursor-glow {
    position: fixed;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, var(--yellow-glow) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
    z-index: 9998;
    opacity: 0.15;
    transform: translate(-50%, -50%);
    transition: opacity 0.3s;
    display: none;
}

@media (hover: hover) {
    .cursor-glow {
        display: block;
    }
}

/* ===========================================
   SCROLL PROGRESS
   =========================================== */
.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    width: 0%;
    height: 2px;
    background: linear-gradient(90deg, var(--yellow-primary), var(--yellow-secondary));
    z-index: 10000;
    box-shadow: 0 0 20px var(--yellow-glow);
}

/* ===========================================
   TYPOGRAPHY
   =========================================== */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -0.025em;
}

h1 { font-size: clamp(1.75rem, 3.5vw, 2.5rem); }
h2 { font-size: clamp(1.5rem, 2.5vw, 2rem); }
h3 { font-size: clamp(1rem, 1.5vw, 1.15rem); }
h4 { font-size: 1rem; }

p {
    font-family: var(--font-body);
    color: var(--text-secondary);
    line-height: 1.7;
    font-size: 0.95rem;
}

.text-accent {
    color: var(--yellow-primary);
}

.text-gradient-flow {
    background: linear-gradient(135deg, #fff 0%, var(--yellow-primary) 50%, var(--yellow-secondary) 100%);
    background-size: 200% 200%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: gradientFlow 4s ease infinite;
}

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

/* ===========================================
   LAYOUT
   =========================================== */
.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 2rem;
}

section {
    position: relative;
    padding: var(--section-gap) 0;
}

/* ===========================================
   SECTION HEADERS
   =========================================== */
.section-header {
    margin-bottom: 2.5rem;
}

.section-header.centered {
    text-align: center;
}

.section-tag {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-family: var(--font-mono);
    font-size: 0.65rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--yellow-primary);
    background: var(--yellow-subtle);
    padding: 0.4rem 0.85rem;
    border-radius: 100px;
    border: 1px solid var(--yellow-border);
    margin-bottom: 1rem;
}

.section-title {
    margin-bottom: 0.75rem;
}

.section-desc {
    font-size: 0.95rem;
    max-width: 550px;
}

.section-header.centered .section-desc {
    margin: 0 auto;
}

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

.reveal-up.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ===========================================
   BUTTONS
   =========================================== */
.btn-primary {
    position: relative;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: linear-gradient(135deg, var(--yellow-primary) 0%, #e6bc00 100%);
    color: var(--bg-primary);
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 0.8rem;
    padding: 0.75rem 1.5rem;
    border-radius: 100px;
    overflow: hidden;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
    box-shadow: 0 4px 20px rgba(255, 208, 0, 0.25);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(255, 208, 0, 0.35);
}

.btn-primary svg {
    transition: transform var(--transition-fast);
}

.btn-primary:hover svg {
    transform: translateX(4px);
}

.btn-shine {
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
    transform: translateX(-100%);
    transition: transform 0.5s;
}

.btn-primary:hover .btn-shine {
    transform: translateX(100%);
}

.btn-outline {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: transparent;
    color: var(--text-primary);
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 0.8rem;
    padding: 0.75rem 1.5rem;
    border-radius: 100px;
    border: 1px solid var(--card-border);
    transition: all var(--transition-fast);
}

.btn-outline:hover {
    border-color: var(--yellow-primary);
    color: var(--yellow-primary);
    background: var(--yellow-subtle);
}

.btn-large {
    padding: 0.9rem 1.75rem;
    font-size: 0.85rem;
}

/* ===========================================
   NAVIGATION
   =========================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 1rem 0;
    background: rgba(5, 5, 7, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid transparent;
    transition: all var(--transition-fast);
}

.navbar.scrolled {
    padding: 0.75rem 0;
    border-color: var(--card-border);
    background: rgba(5, 5, 7, 0.95);
}

.nav-container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

/* Logo */
.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.logo-mark {
    position: relative;
    width: 32px;
    height: 32px;
    background: var(--yellow-primary);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.logo-y {
    font-family: var(--font-display);
    font-weight: 800;
    font-size: 1.15rem;
    color: var(--bg-primary);
}

.logo-dot {
    position: absolute;
    bottom: 5px;
    right: 5px;
    width: 6px;
    height: 6px;
    background: var(--bg-primary);
    border-radius: 50%;
}

.logo-text {
    font-family: var(--font-display);
    font-weight: 800;
    font-size: 1.1rem;
    letter-spacing: -0.02em;
}

/* Nav Menu */
.nav-menu {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 0.35rem;
    font-family: var(--font-body);
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--text-muted);
    padding: 0.5rem 0.85rem;
    border-radius: 8px;
    transition: all var(--transition-fast);
}

.nav-link:hover, .nav-link.active {
    color: var(--text-primary);
}

.dropdown-arrow {
    transition: transform var(--transition-fast);
}

/* Dropdown */
.nav-dropdown {
    position: relative;
}

.dropdown-panel {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 200px;
    background: var(--bg-secondary);
    border: 1px solid var(--card-border);
    border-radius: 12px;
    padding: 0.5rem;
    margin-top: 0.5rem;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all var(--transition-fast);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.nav-dropdown:hover .dropdown-panel {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.nav-dropdown:hover .dropdown-arrow {
    transform: rotate(180deg);
}

.dropdown-panel a {
    display: block;
    padding: 0.6rem 1rem;
    font-family: var(--font-body);
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--text-secondary);
    border-radius: 8px;
    transition: all var(--transition-fast);
}

.dropdown-panel a:hover {
    background: var(--card-hover);
    color: var(--yellow-primary);
}

/* CTA Button */
.btn-cta {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    background: var(--yellow-primary);
    color: var(--bg-primary);
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 0.75rem;
    padding: 0.6rem 1rem;
    border-radius: 100px;
    transition: all var(--transition-fast);
}

.btn-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 20px rgba(255, 208, 0, 0.3);
}

.btn-cta svg {
    transition: transform var(--transition-fast);
}

.btn-cta:hover svg {
    transform: translateX(3px);
}

/* Theme Toggle */
.theme-toggle {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 50%;
    cursor: pointer;
    transition: all var(--transition-fast);
    position: relative;
    margin-left: 0.5rem;
}

.theme-toggle:hover {
    border-color: var(--yellow-primary);
    background: var(--yellow-subtle);
}

.theme-toggle svg {
    position: absolute;
    transition: all 0.3s ease;
    color: var(--text-secondary);
}

.theme-toggle .icon-sun {
    opacity: 0;
    transform: rotate(-90deg) scale(0.5);
}

.theme-toggle .icon-moon {
    opacity: 1;
    transform: rotate(0deg) scale(1);
}

[data-theme="light"] .theme-toggle .icon-sun {
    opacity: 1;
    transform: rotate(0deg) scale(1);
}

[data-theme="light"] .theme-toggle .icon-moon {
    opacity: 0;
    transform: rotate(90deg) scale(0.5);
}

.theme-toggle:hover svg {
    color: var(--yellow-primary);
}

/* Mobile Menu Toggle */
.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 0.5rem;
}

.menu-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: all var(--transition-fast);
}

.menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* ===========================================
   HERO SECTION
   =========================================== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 6rem 2rem 3rem;
    position: relative;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    z-index: -1;
}

.hero-gradient {
    position: absolute;
    inset: 0;
    background: 
        radial-gradient(ellipse 80% 60% at 30% 20%, rgba(255, 208, 0, 0.12) 0%, transparent 50%),
        radial-gradient(ellipse 60% 50% at 70% 70%, rgba(255, 208, 0, 0.08) 0%, transparent 50%),
        radial-gradient(ellipse 50% 40% at 50% 50%, rgba(255, 223, 77, 0.05) 0%, transparent 60%);
    animation: heroGradient 10s ease-in-out infinite alternate;
}

@keyframes heroGradient {
    0% { transform: scale(1) rotate(0deg); opacity: 0.8; }
    100% { transform: scale(1.1) rotate(2deg); opacity: 1; }
}

.hero-grid {
    position: absolute;
    inset: 0;
    background-image: 
        linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
    background-size: 60px 60px;
    mask-image: radial-gradient(ellipse 80% 60% at center, black, transparent);
}

.hero-orbs {
    position: absolute;
    inset: 0;
    pointer-events: none;
}

.orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    animation: float 8s ease-in-out infinite;
}

.orb-1 {
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(255, 208, 0, 0.2) 0%, transparent 70%);
    top: 5%;
    right: 10%;
    animation-delay: 0s;
}

.orb-2 {
    width: 350px;
    height: 350px;
    background: radial-gradient(circle, rgba(255, 208, 0, 0.15) 0%, transparent 70%);
    bottom: 10%;
    left: 5%;
    animation-delay: -3s;
}

.orb-3 {
    width: 200px;
    height: 200px;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.08) 0%, transparent 70%);
    top: 50%;
    left: 40%;
    animation-delay: -5s;
}

@keyframes float {
    0%, 100% { transform: translateY(0) scale(1); }
    50% { transform: translateY(-30px) scale(1.05); }
}

/* Hero Content */
.hero-content {
    max-width: 900px;
    text-align: center;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-family: var(--font-mono);
    font-size: 0.65rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--yellow-primary);
    background: var(--yellow-subtle);
    padding: 0.5rem 1rem;
    border-radius: 100px;
    border: 1px solid var(--yellow-border);
    margin-bottom: 1.5rem;
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 0.6s var(--ease-out-expo) 0.1s forwards;
}

@keyframes fadeInUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.badge-dot {
    width: 6px;
    height: 6px;
    background: var(--yellow-primary);
    border-radius: 50%;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(0.8); }
}

.hero-title {
    font-size: clamp(1.75rem, 4.5vw, 3rem);
    line-height: 1.15;
    margin-bottom: 1.25rem;
}

.hero-title > span {
    display: block;
    opacity: 0;
    transform: translateY(15px);
    animation: fadeInUp 0.5s var(--ease-out-expo) forwards;
}

.hero-title > span:nth-child(1) {
    animation-delay: 0.1s;
}

.hero-title > span:nth-child(2) {
    animation-delay: 0.3s;
}

.hero-title > span:nth-child(3) {
    animation-delay: 0.5s;
}

/* Typewriter effect */
.typewriter-line {
    display: block;
    min-height: 1.2em;
}

.typewriter-line .typewriter-text,
.typewriter-line .typewriter-cursor {
    display: inline;
    opacity: 1;
    transform: none;
    animation: none;
}

.typewriter-text {
    background: linear-gradient(135deg, #fff 30%, var(--yellow-primary) 70%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.typewriter-cursor {
    color: var(--yellow-primary);
    font-weight: 400;
    -webkit-text-fill-color: var(--yellow-primary);
    animation: blink 0.7s step-end infinite;
    margin-left: 2px;
}

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

.typewriter-cursor.hidden {
    opacity: 0;
    animation: none;
}

.hero-highlight {
    position: relative;
    display: inline-block;
}

.highlight-gradient {
    position: absolute;
    bottom: 0.1em;
    left: 0;
    right: 0;
    height: 0.15em;
    background: linear-gradient(90deg, var(--yellow-primary), var(--yellow-secondary));
    border-radius: 4px;
    opacity: 0.5;
}

.hero-description {
    font-size: 1rem;
    max-width: 550px;
    margin: 0 auto 2rem;
    color: var(--text-secondary);
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 0.6s var(--ease-out-expo) 2.8s forwards;
}

.hero-cta {
    display: flex;
    gap: 0.75rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 3rem;
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 0.6s var(--ease-out-expo) 3s forwards;
}

/* Hero Stats */
.hero-stats {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1.5rem;
    flex-wrap: wrap;
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 0.6s var(--ease-out-expo) 3.2s forwards;
}

.hero-stat {
    text-align: center;
}

.stat-value {
    display: block;
    font-family: var(--font-display);
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--yellow-primary);
    line-height: 1;
}

.stat-label {
    display: block;
    font-family: var(--font-body);
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--text-muted);
    margin-top: 0.35rem;
}

.stat-divider {
    width: 1px;
    height: 32px;
    background: var(--card-border);
}

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-muted);
    font-family: var(--font-mono);
    font-size: 0.65rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    opacity: 0;
    animation: fadeInUp 0.6s var(--ease-out-expo) 3.5s forwards;
}

.scroll-line {
    width: 1px;
    height: 40px;
    background: var(--card-border);
    position: relative;
    overflow: hidden;
}

.scroll-dot {
    position: absolute;
    top: 0;
    width: 100%;
    height: 15px;
    background: var(--yellow-primary);
    animation: scrollDot 2s ease-in-out infinite;
}

@keyframes scrollDot {
    0%, 100% { top: 0; }
    50% { top: calc(100% - 15px); }
}

/* ===========================================
   WHY SECTION
   =========================================== */
.why-section {
    background: var(--bg-secondary);
}

.value-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.value-card {
    position: relative;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--border-radius);
    padding: 1.75rem;
    transition: all var(--transition-medium);
    overflow: hidden;
}

.value-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, var(--yellow-subtle) 0%, transparent 50%);
    opacity: 0;
    transition: opacity var(--transition-medium);
}

.value-card:hover {
    border-color: var(--yellow-border);
    transform: translateY(-8px);
}

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

.value-icon {
    position: relative;
    width: 48px;
    height: 48px;
    margin-bottom: 1.25rem;
    color: var(--yellow-primary);
}

.value-icon svg {
    width: 100%;
    height: 100%;
}

.value-number {
    position: absolute;
    top: 1.25rem;
    right: 1.25rem;
    font-family: var(--font-mono);
    font-size: 0.65rem;
    font-weight: 500;
    color: var(--text-muted);
    opacity: 0.5;
}

.value-card h3 {
    margin-bottom: 0.75rem;
    position: relative;
    font-size: 1.05rem;
}

.value-card p {
    position: relative;
    margin: 0;
    font-size: 0.875rem;
}

/* ===========================================
   EXPERTISES SECTION
   =========================================== */
.expertises-section {
    background: var(--bg-primary);
}

.expertise-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
}

.expertise-card {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 1.25rem;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    transition: all var(--transition-medium);
}

.expertise-card:hover {
    border-color: var(--yellow-border);
    transform: translateY(-4px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
}

.expertise-visual {
    position: relative;
    width: 60px;
    height: 60px;
}

.expertise-icon {
    width: 100%;
    height: 100%;
    color: var(--yellow-primary);
    transition: transform var(--transition-fast);
}

.expertise-card:hover .expertise-icon {
    transform: scale(1.1);
}

.expertise-icon svg {
    width: 100%;
    height: 100%;
}

.expertise-glow {
    position: absolute;
    inset: -15px;
    background: radial-gradient(circle, var(--yellow-subtle) 0%, transparent 70%);
    opacity: 0;
    transition: opacity var(--transition-medium);
}

.expertise-card:hover .expertise-glow {
    opacity: 1;
}

.expertise-content h3 {
    margin-bottom: 0.5rem;
    font-size: 1.05rem;
}

.expertise-content p {
    margin-bottom: 0.85rem;
    font-size: 0.85rem;
}

.expertise-tags {
    display: flex;
    gap: 0.4rem;
    flex-wrap: wrap;
}

.expertise-tags span {
    font-family: var(--font-mono);
    font-size: 0.6rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    color: var(--yellow-primary);
    background: var(--yellow-subtle);
    padding: 0.25rem 0.6rem;
    border-radius: 100px;
    border: 1px solid var(--yellow-border);
}

/* ===========================================
   INDUSTRIES SECTION
   =========================================== */
.industries-section {
    background: var(--bg-secondary);
    position: relative;
    overflow: hidden;
}

.industries-bg {
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse 80% 50% at 50% 0%, rgba(255, 208, 0, 0.05) 0%, transparent 50%);
}

.industries-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
}

.industry-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    text-align: center;
    transition: all var(--transition-medium);
}

.industry-card:hover {
    border-color: var(--yellow-border);
    transform: translateY(-4px);
}

.industry-icon {
    font-size: 2rem;
    margin-bottom: 0.75rem;
}

.industry-card h3 {
    font-size: 0.95rem;
    margin-bottom: 0.75rem;
}

.industry-card ul {
    text-align: left;
}

.industry-card li {
    font-size: 0.8rem;
    color: var(--text-secondary);
    padding: 0.4rem 0;
    border-bottom: 1px solid var(--card-border);
}

.industry-card li:last-child {
    border: none;
}

/* ===========================================
   METHODOLOGY SECTION
   =========================================== */
.methodology-section {
    background: var(--bg-primary);
}

.methodology-timeline {
    position: relative;
    margin-top: 3rem;
}

.timeline-line {
    position: absolute;
    top: 24px;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--card-border);
}

.timeline-progress {
    height: 100%;
    width: 0%;
    background: linear-gradient(90deg, var(--yellow-primary), var(--yellow-secondary));
    transition: width 0.5s ease;
}

.timeline-steps {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
}

.timeline-step {
    position: relative;
    text-align: center;
}

.step-marker {
    width: 48px;
    height: 48px;
    margin: 0 auto 1rem;
    background: var(--bg-secondary);
    border: 2px solid var(--card-border);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-muted);
    transition: all var(--transition-medium);
    position: relative;
    z-index: 1;
}

.timeline-step:hover .step-marker,
.step-marker.active {
    border-color: var(--yellow-primary);
    color: var(--yellow-primary);
    box-shadow: 0 0 20px var(--yellow-glow);
}

.step-content h4 {
    margin-bottom: 0.5rem;
    font-size: 0.95rem;
}

.step-content p {
    font-size: 0.8rem;
    margin: 0;
}

/* ===========================================
   CASE STUDIES SECTION
   =========================================== */
.cases-section {
    background: var(--bg-secondary);
}

.cases-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.case-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    transition: all var(--transition-medium);
}

.case-card:hover {
    border-color: var(--yellow-border);
    transform: translateY(-4px);
}

.case-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.case-logo {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 0.95rem;
}

.case-tag {
    font-family: var(--font-mono);
    font-size: 0.55rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    color: var(--yellow-primary);
    background: var(--yellow-subtle);
    padding: 0.25rem 0.6rem;
    border-radius: 100px;
}

.case-card h3 {
    font-size: 1rem;
    margin-bottom: 0.5rem;
}

.case-card > p {
    font-size: 0.85rem;
    flex-grow: 1;
    margin-bottom: 1rem;
}

.case-metrics {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.75rem;
    padding-top: 1rem;
    border-top: 1px solid var(--card-border);
}

.case-metric {
    text-align: center;
}

.metric-value {
    display: block;
    font-family: var(--font-display);
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--yellow-primary);
}

.metric-label {
    display: block;
    font-family: var(--font-body);
    font-size: 0.7rem;
    font-weight: 500;
    color: var(--text-muted);
    margin-top: 0.15rem;
}

/* ===========================================
   YELLOWMIND SECTION
   =========================================== */
.yellowmind-section {
    background: var(--bg-primary);
    position: relative;
    overflow: hidden;
}

.yellowmind-bg {
    position: absolute;
    inset: 0;
}

.yellowmind-glow {
    position: absolute;
    top: 50%;
    right: 10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(255, 208, 0, 0.1) 0%, transparent 60%);
    transform: translateY(-50%);
    filter: blur(60px);
}

.yellowmind-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.yellowmind-info h2 {
    margin-bottom: 1rem;
}

.yellowmind-info > p {
    margin-bottom: 1.5rem;
    font-size: 0.9rem;
}

.yellowmind-features {
    margin-bottom: 1.5rem;
}

.yellowmind-features li {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.5rem 0;
    color: var(--text-secondary);
    font-size: 0.85rem;
}

.yellowmind-features svg {
    color: var(--yellow-primary);
    flex-shrink: 0;
    width: 16px;
    height: 16px;
}

.yellowmind-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.brain-animation {
    position: relative;
    width: 220px;
    height: 220px;
}

.brain-core {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 70px;
    height: 70px;
    background: var(--yellow-subtle);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    border: 2px solid var(--yellow-border);
    animation: brainPulse 3s ease-in-out infinite;
}

@keyframes brainPulse {
    0%, 100% { transform: translate(-50%, -50%) scale(1); }
    50% { transform: translate(-50%, -50%) scale(1.05); }
}

.brain-ring {
    position: absolute;
    top: 50%;
    left: 50%;
    border: 1px solid var(--yellow-border);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    animation: ringRotate 20s linear infinite;
}

.ring-1 {
    width: 110px;
    height: 110px;
    animation-duration: 25s;
}

.ring-2 {
    width: 155px;
    height: 155px;
    animation-duration: 30s;
    animation-direction: reverse;
}

.ring-3 {
    width: 200px;
    height: 200px;
    animation-duration: 35s;
}

@keyframes ringRotate {
    from { transform: translate(-50%, -50%) rotate(0deg); }
    to { transform: translate(-50%, -50%) rotate(360deg); }
}

.brain-particles {
    position: absolute;
    inset: 0;
}

.brain-particles span {
    position: absolute;
    font-size: 0.9rem;
    animation: particleFloat 4s ease-in-out infinite;
    animation-delay: calc(var(--i) * 0.5s);
}

.brain-particles span:nth-child(1) { top: 10%; left: 20%; }
.brain-particles span:nth-child(2) { top: 20%; right: 15%; }
.brain-particles span:nth-child(3) { bottom: 25%; left: 10%; }
.brain-particles span:nth-child(4) { bottom: 15%; right: 20%; }
.brain-particles span:nth-child(5) { top: 50%; left: 5%; }
.brain-particles span:nth-child(6) { top: 40%; right: 5%; }

@keyframes particleFloat {
    0%, 100% { transform: translateY(0) rotate(0deg); opacity: 0.6; }
    50% { transform: translateY(-10px) rotate(10deg); opacity: 1; }
}

/* ===========================================
   REFERENCES SECTION
   =========================================== */
.references-section {
    background: var(--bg-secondary);
    padding: 4rem 0;
}

.logos-carousel {
    margin-top: 2rem;
    overflow: hidden;
    mask-image: linear-gradient(90deg, transparent, black 10%, black 90%, transparent);
}

.logos-track {
    display: flex;
    gap: 3rem;
    animation: scroll 30s linear infinite;
}

.logo-item {
    flex-shrink: 0;
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-muted);
    opacity: 0.5;
    white-space: nowrap;
    transition: all var(--transition-fast);
}

.logo-item:hover {
    opacity: 1;
    color: var(--text-primary);
}

@keyframes scroll {
    0% { transform: translateX(0); }
    100% { transform: translateX(calc(-50% - 2rem)); }
}

/* ===========================================
   CULTURE SECTION
   =========================================== */
.culture-section {
    background: var(--bg-primary);
}

.culture-wrapper {
    max-width: 1000px;
    margin: 0 auto;
}

.culture-content {
    text-align: center;
    margin-bottom: 3rem;
}

.culture-content p {
    max-width: 550px;
    margin: 0 auto;
    font-size: 0.9rem;
}

.culture-content strong {
    color: var(--text-primary);
}

.culture-values {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    margin-bottom: 3rem;
}

.culture-value {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    text-align: center;
    transition: all var(--transition-medium);
}

.culture-value:hover {
    border-color: var(--yellow-border);
    transform: translateY(-4px);
}

.culture-icon {
    font-size: 1.75rem;
    margin-bottom: 0.75rem;
}

.culture-value h4 {
    margin-bottom: 0.5rem;
    font-size: 0.95rem;
}

.culture-value p {
    font-size: 0.8rem;
    margin: 0;
}

.culture-cta {
    background: linear-gradient(135deg, var(--yellow-subtle) 0%, var(--card-bg) 100%);
    border: 1px solid var(--yellow-border);
    border-radius: var(--border-radius);
    padding: 2rem;
    text-align: center;
}

.culture-cta h3 {
    margin-bottom: 0.5rem;
    font-size: 1.1rem;
}

.culture-cta p {
    margin-bottom: 1.25rem;
    font-size: 0.85rem;
}

/* ===========================================
   ABOUT SECTION
   =========================================== */
.about-section {
    background: var(--bg-secondary);
}

.about-wrapper {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 3rem;
    align-items: center;
}

.about-text p {
    margin-bottom: 1rem;
    font-size: 0.9rem;
}

.about-text strong {
    color: var(--text-primary);
}

.about-text em {
    color: var(--yellow-primary);
    font-style: normal;
}

.about-visual {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
}

.about-blob {
    position: relative;
    width: 150px;
    height: 150px;
}

.blob-inner {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--yellow-primary), var(--yellow-secondary));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: blobFloat 6s ease-in-out infinite;
}

.blob-text {
    font-family: var(--font-display);
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--bg-primary);
}

.blob-ring {
    position: absolute;
    inset: -15px;
    border: 1px dashed var(--yellow-border);
    border-radius: 50%;
    animation: ringRotate 30s linear infinite;
}

@keyframes blobFloat {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.about-locations {
    display: flex;
    gap: 1.5rem;
}

.location {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    color: var(--text-secondary);
    font-size: 0.8rem;
}

.location-dot {
    width: 6px;
    height: 6px;
    background: var(--yellow-primary);
    border-radius: 50%;
}

/* ===========================================
   CTA SECTION
   =========================================== */
.cta-section {
    position: relative;
    padding: 5rem 0;
    overflow: hidden;
}

.cta-bg {
    position: absolute;
    inset: 0;
}

.cta-gradient {
    position: absolute;
    inset: 0;
    background: 
        radial-gradient(ellipse 60% 80% at 50% 50%, rgba(255, 208, 0, 0.12) 0%, transparent 60%),
        var(--bg-primary);
}

.cta-content {
    position: relative;
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
}

.cta-content h2 {
    margin-bottom: 0.75rem;
    font-size: 1.5rem;
}

.cta-content p {
    font-size: 0.95rem;
    margin-bottom: 1.5rem;
}

/* ===========================================
   FOOTER
   =========================================== */
.footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--card-border);
    padding: 3rem 0 1.5rem;
}

.footer-top {
    display: grid;
    grid-template-columns: 1.5fr 2fr;
    gap: 3rem;
    margin-bottom: 2rem;
}

.footer-brand p {
    margin: 0.75rem 0 1rem;
    font-size: 0.85rem;
}

.footer-social {
    display: flex;
    gap: 0.75rem;
}

.footer-social a {
    width: 34px;
    height: 34px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 50%;
    color: var(--text-muted);
    transition: all var(--transition-fast);
}

.footer-social a svg {
    width: 16px;
    height: 16px;
}

.footer-social a:hover {
    border-color: var(--yellow-primary);
    color: var(--yellow-primary);
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.footer-col h4 {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-muted);
    margin-bottom: 1rem;
}

.footer-col ul li {
    margin-bottom: 0.5rem;
}

.footer-col a {
    font-family: var(--font-body);
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-secondary);
    transition: color var(--transition-fast);
}

.footer-col a:hover {
    color: var(--yellow-primary);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 1.5rem;
    border-top: 1px solid var(--card-border);
}

.footer-bottom p {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin: 0;
}

.footer-values {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    font-weight: 500;
    letter-spacing: 0.03em;
}

/* ===========================================
   FLOATING CONTACT WIDGET
   =========================================== */
.floating-contact {
    position: fixed;
    bottom: 1.5rem;
    right: 1.5rem;
    z-index: 999;
}

.floating-contact-btn {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--yellow-primary) 0%, #e6bc00 100%);
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 20px rgba(255, 208, 0, 0.35);
    transition: all var(--transition-fast);
    position: relative;
}

.floating-contact-btn:hover {
    transform: scale(1.05);
    box-shadow: 0 6px 30px rgba(255, 208, 0, 0.45);
}

.floating-contact-btn svg {
    color: var(--bg-primary);
    transition: all 0.3s ease;
    position: absolute;
}

.floating-contact-btn .icon-chat {
    opacity: 1;
    transform: scale(1) rotate(0deg);
}

.floating-contact-btn .icon-close {
    opacity: 0;
    transform: scale(0.5) rotate(-90deg);
}

.floating-contact.active .floating-contact-btn .icon-chat {
    opacity: 0;
    transform: scale(0.5) rotate(90deg);
}

.floating-contact.active .floating-contact-btn .icon-close {
    opacity: 1;
    transform: scale(1) rotate(0deg);
}

/* Pulse animation */
.floating-contact-btn::before {
    content: '';
    position: absolute;
    inset: -4px;
    border-radius: 50%;
    background: var(--yellow-primary);
    opacity: 0;
    animation: contactPulse 2s ease-in-out infinite;
}

@keyframes contactPulse {
    0%, 100% { transform: scale(1); opacity: 0; }
    50% { transform: scale(1.15); opacity: 0.3; }
}

.floating-contact.active .floating-contact-btn::before {
    animation: none;
    opacity: 0;
}

/* Contact Panel */
.floating-contact-panel {
    position: absolute;
    bottom: 70px;
    right: 0;
    width: 320px;
    background: var(--bg-secondary);
    border: 1px solid var(--card-border);
    border-radius: var(--border-radius);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px) scale(0.95);
    transform-origin: bottom right;
    transition: all 0.3s var(--ease-out-expo);
    overflow: hidden;
}

.floating-contact.active .floating-contact-panel {
    opacity: 1;
    visibility: visible;
    transform: translateY(0) scale(1);
}

.contact-panel-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem;
    background: var(--card-bg);
    border-bottom: 1px solid var(--card-border);
}

.contact-panel-avatar {
    width: 40px;
    height: 40px;
    background: var(--yellow-primary);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-display);
    font-weight: 800;
    font-size: 1.1rem;
    color: var(--bg-primary);
}

.contact-panel-info h4 {
    font-size: 0.9rem;
    margin-bottom: 0.1rem;
}

.contact-panel-info p {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin: 0;
    display: flex;
    align-items: center;
    gap: 0.35rem;
}

.contact-panel-info p::before {
    content: '';
    width: 6px;
    height: 6px;
    background: #22c55e;
    border-radius: 50%;
}

.contact-panel-body {
    padding: 1rem;
}

.contact-panel-body p {
    font-size: 0.9rem;
    margin: 0;
    color: var(--text-secondary);
    line-height: 1.5;
}

.contact-panel-actions {
    padding: 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    border-top: 1px solid var(--card-border);
}

.contact-action-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1rem;
    border-radius: 8px;
    font-family: var(--font-display);
    font-size: 0.85rem;
    font-weight: 600;
    transition: all var(--transition-fast);
    text-align: center;
}

.contact-action-btn.primary {
    background: var(--yellow-primary);
    color: var(--bg-primary);
}

.contact-action-btn.primary:hover {
    background: var(--yellow-secondary);
    transform: translateY(-2px);
}

.contact-action-btn.secondary {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    color: var(--text-primary);
}

.contact-action-btn.secondary:hover {
    border-color: var(--yellow-primary);
    color: var(--yellow-primary);
}

.contact-action-btn svg {
    flex-shrink: 0;
}

/* Light mode adjustments */
[data-theme="light"] .floating-contact-panel {
    background: #ffffff;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.12);
}

[data-theme="light"] .floating-contact-btn {
    box-shadow: 0 4px 20px rgba(201, 154, 0, 0.3);
}

[data-theme="light"] .floating-contact-btn:hover {
    box-shadow: 0 6px 30px rgba(201, 154, 0, 0.4);
}

/* ===========================================
   RESPONSIVE DESIGN
   =========================================== */
@media (max-width: 1024px) {
    .value-grid {
        grid-template-columns: 1fr;
    }
    
    .expertise-grid {
        grid-template-columns: 1fr;
    }
    
    .industries-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .timeline-steps {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .cases-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .yellowmind-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .yellowmind-features {
        display: inline-block;
        text-align: left;
    }
    
    .about-wrapper {
        grid-template-columns: 1fr;
    }
    
    .footer-top {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    :root {
        --section-gap: 3.5rem;
    }
    
    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--bg-secondary);
        border-bottom: 1px solid var(--card-border);
        padding: 1.5rem;
        flex-direction: column;
        gap: 1rem;
    }
    
    .nav-menu.active {
        display: flex;
    }
    
    .theme-toggle {
        position: static;
        margin-left: auto;
        margin-right: 1rem;
    }
    
    .menu-toggle {
        display: flex;
    }
    
    .nav-links {
        flex-direction: column;
        align-items: stretch;
    }
    
    .nav-link {
        justify-content: space-between;
        padding: 1rem;
    }
    
    .dropdown-panel {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        background: transparent;
        border: none;
        box-shadow: none;
        max-height: 0;
        overflow: hidden;
        padding: 0;
        margin: 0;
        transition: max-height var(--transition-medium);
    }
    
    .nav-dropdown.active .dropdown-panel {
        max-height: 300px;
        padding: 0.5rem 0 0 1rem;
    }
    
    .btn-cta {
        width: 100%;
        justify-content: center;
    }
    
    .menu-toggle {
        display: flex;
    }
    
    .hero {
        padding: 5rem 1.5rem 2.5rem;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: 1rem;
    }
    
    .stat-divider {
        width: 30px;
        height: 1px;
    }
    
    .scroll-indicator {
        display: none;
    }
    
    .industries-grid {
        grid-template-columns: 1fr;
    }
    
    .timeline-steps {
        grid-template-columns: 1fr;
    }
    
    .timeline-line {
        display: none;
    }
    
    .cases-grid {
        grid-template-columns: 1fr;
    }
    
    .culture-values {
        grid-template-columns: 1fr;
    }
    
    .footer-links {
        grid-template-columns: 1fr 1fr;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 1rem;
    }
    
    .hero-cta {
        flex-direction: column;
    }
    
    .btn-primary, .btn-outline {
        width: 100%;
        justify-content: center;
    }
    
    .expertise-card {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .expertise-visual {
        margin: 0 auto;
    }
    
    .expertise-tags {
        justify-content: center;
    }
    
    .footer-links {
        grid-template-columns: 1fr;
    }
}

/* Floating contact responsive */
@media (max-width: 480px) {
    .floating-contact {
        bottom: 1rem;
        right: 1rem;
    }
    
    .floating-contact-btn {
        width: 50px;
        height: 50px;
    }
    
    .floating-contact-panel {
        width: calc(100vw - 2rem);
        right: 0;
        bottom: 65px;
    }
    
    .theme-toggle {
        width: 36px;
        height: 36px;
    }
    
    .theme-toggle svg {
        width: 16px;
        height: 16px;
    }
}

/* ===========================================
   REDUCED MOTION
   =========================================== */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    html {
        scroll-behavior: auto;
    }
}