/* ==========================================================================
   Beijing Yushu Technology Co., Ltd. - Main Styles
   Corporate Website - European & American Markets
   ========================================================================== */

/* ==========================================================================
   CSS Variables & Design System
   ========================================================================== */
:root {
    /* Primary Colors - Xiaomi-inspired Orange */
    --primary-color: #FF6900;
    --primary-light: #FF8533;
    --primary-dark: #E55C00;
    --primary-gradient: linear-gradient(135deg, #FF6900 0%, #FF8533 50%, #FFA366 100%);
    
    /* Secondary Colors */
    --secondary-color: #1A1A1A;
    --secondary-light: #333333;
    --secondary-lighter: #666666;
    
    /* Accent Colors */
    --accent-blue: #00A0E9;
    --accent-green: #00C853;
    --accent-purple: #7C4DFF;
    
    /* Background Colors */
    --bg-primary: #FFFFFF;
    --bg-secondary: #F5F5F5;
    --bg-dark: #1A1A1A;
    --bg-gradient: linear-gradient(180deg, #FFFFFF 0%, #F8F8F8 100%);
    
    /* Text Colors */
    --text-primary: #1A1A1A;
    --text-secondary: #666666;
    --text-light: #999999;
    --text-white: #FFFFFF;
    --text-gradient: linear-gradient(135deg, #FF6900, #FF8533);
    
    /* Border Colors */
    --border-color: #E5E5E5;
    --border-light: #F0F0F0;
    
    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.16);
    --shadow-xl: 0 16px 64px rgba(0, 0, 0, 0.2);
    --shadow-primary: 0 8px 32px rgba(255, 105, 0, 0.3);
    
    /* Spacing */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-2xl: 48px;
    --spacing-3xl: 64px;
    --spacing-4xl: 96px;
    
    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 50%;
    
    /* Typography */
    --font-primary: 'Roboto', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-heading: 'Roboto', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-size-xs: 12px;
    --font-size-sm: 14px;
    --font-size-base: 16px;
    --font-size-lg: 18px;
    --font-size-xl: 20px;
    --font-size-2xl: 24px;
    --font-size-3xl: 32px;
    --font-size-4xl: 40px;
    --font-size-5xl: 48px;
    --font-size-6xl: 64px;
    --font-size-hero: 72px;
    
    /* Font Weights */
    --font-light: 300;
    --font-regular: 400;
    --font-medium: 500;
    --font-semibold: 600;
    --font-bold: 700;
    --font-black: 900;
    
    /* Line Heights */
    --line-height-tight: 1.2;
    --line-height-normal: 1.5;
    --line-height-relaxed: 1.8;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    --transition-bounce: 0.5s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    
    /* Z-index */
    --z-index-dropdown: 100;
    --z-index-sticky: 200;
    --z-index-fixed: 300;
    --z-index-modal: 400;
    --z-index-tooltip: 500;
    
    /* Container */
    --container-max: 1400px;
    --container-padding: 24px;
    
    /* Header */
    --header-height: 80px;
    --header-height-mobile: 60px;
}

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

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    font-size: 16px;
}

body {
    font-family: var(--font-primary);
    font-size: var(--font-size-base);
    line-height: var(--line-height-normal);
    color: var(--text-primary);
    background-color: var(--bg-primary);
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition-normal);
}

ul, ol {
    list-style: none;
}

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

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

input, textarea, select {
    font-family: inherit;
    font-size: inherit;
}

/* ==========================================================================
   Typography
   ========================================================================== */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: var(--font-bold);
    line-height: var(--line-height-tight);
    color: var(--text-primary);
}

h1 {
    font-size: var(--font-size-hero);
    letter-spacing: -2px;
}

h2 {
    font-size: var(--font-size-5xl);
    letter-spacing: -1px;
}

h3 {
    font-size: var(--font-size-3xl);
}

h4 {
    font-size: var(--font-size-2xl);
}

h5 {
    font-size: var(--font-size-xl);
}

h6 {
    font-size: var(--font-size-lg);
}

p {
    margin-bottom: var(--spacing-md);
    color: var(--text-secondary);
}

.text-gradient {
    background: var(--text-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

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

/* ==========================================================================
   Layout
   ========================================================================== */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

.section {
    padding: var(--spacing-4xl) 0;
    position: relative;
}

.section-dark {
    background: var(--bg-dark);
    color: var(--text-white);
}

.section-gray {
    background: var(--bg-secondary);
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-3xl);
}

.section-title {
    font-size: var(--font-size-4xl);
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.section-subtitle {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    max-width: 700px;
    margin: 0 auto;
}

.row {
    display: flex;
    flex-wrap: wrap;
    margin: 0 calc(var(--spacing-md) * -0.5);
}

.col {
    flex: 1;
    padding: 0 calc(var(--spacing-md) * 0.5);
}

.col-2 {
    flex: 0 0 calc(16.666% - var(--spacing-md));
    max-width: calc(16.666% - var(--spacing-md));
}

.col-3 {
    flex: 0 0 calc(25% - var(--spacing-md));
    max-width: calc(25% - var(--spacing-md));
}

.col-4 {
    flex: 0 0 calc(33.333% - var(--spacing-md));
    max-width: calc(33.333% - var(--spacing-md));
}

.col-6 {
    flex: 0 0 calc(50% - var(--spacing-md));
    max-width: calc(50% - var(--spacing-md));
}

.col-8 {
    flex: 0 0 calc(66.666% - var(--spacing-md));
    max-width: calc(66.666% - var(--spacing-md));
}

.col-12 {
    flex: 0 0 calc(100% - var(--spacing-md));
    max-width: calc(100% - var(--spacing-md));
}

/* ==========================================================================
   Header & Navigation
   ========================================================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--header-height);
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    z-index: var(--z-index-fixed);
    transition: var(--transition-normal);
    border-bottom: 1px solid transparent;
}

.header.scrolled {
    height: 70px;
    box-shadow: var(--shadow-md);
    border-bottom: 1px solid var(--border-light);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.logo svg {
    width: 48px;
    height: 48px;
    transition: var(--transition-normal);
}

.header.scrolled .logo svg {
    width: 40px;
    height: 40px;
}

.logo-text {
    font-size: var(--font-size-xl);
    font-weight: var(--font-bold);
    color: var(--text-primary);
}

.logo-text span {
    color: var(--primary-color);
}

.nav {
    display: flex;
    align-items: center;
    gap: var(--spacing-xl);
}

.nav-list {
    display: flex;
    gap: var(--spacing-lg);
}

.nav-link {
    font-size: var(--font-size-base);
    font-weight: var(--font-medium);
    color: var(--text-secondary);
    padding: var(--spacing-sm) 0;
    position: relative;
    transition: var(--transition-normal);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: var(--transition-normal);
}

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

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.nav-cta {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

/* Mobile Menu */
.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 6px;
    padding: 10px;
    cursor: pointer;
}

.menu-toggle span {
    display: block;
    width: 28px;
    height: 2px;
    background: var(--text-primary);
    transition: var(--transition-normal);
}

.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(7px, -6px);
}

/* ==========================================================================
   Buttons
   ========================================================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: var(--font-size-base);
    font-weight: var(--font-semibold);
    border-radius: var(--radius-lg);
    transition: var(--transition-normal);
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: var(--primary-color);
    color: var(--text-white);
    box-shadow: var(--shadow-primary);
}

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 12px 40px rgba(255, 105, 0, 0.4);
}

.btn-secondary {
    background: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

.btn-secondary:hover {
    background: var(--primary-color);
    color: var(--text-white);
}

.btn-white {
    background: var(--text-white);
    color: var(--primary-color);
}

.btn-white:hover {
    background: var(--bg-secondary);
    transform: translateY(-2px);
}

.btn-dark {
    background: var(--bg-dark);
    color: var(--text-white);
}

.btn-dark:hover {
    background: var(--secondary-light);
    transform: translateY(-2px);
}

.btn-lg {
    padding: var(--spacing-lg) var(--spacing-2xl);
    font-size: var(--font-size-lg);
}

.btn-sm {
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: var(--font-size-sm);
}

.btn-icon {
    width: 48px;
    height: 48px;
    padding: 0;
    border-radius: var(--radius-full);
}

/* Button with icon animation */
.btn-icon-right svg {
    transition: var(--transition-normal);
}

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

/* ==========================================================================
   Hero Section
   ========================================================================== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    background: linear-gradient(135deg, #FFF7F0 0%, #FFFFFF 50%, #F0F8FF 100%);
    overflow: hidden;
}

.hero-bg-shapes {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    overflow: hidden;
}

.hero-shape {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.6;
    animation: float 8s ease-in-out infinite;
}

.hero-shape-1 {
    width: 600px;
    height: 600px;
    background: rgba(255, 105, 0, 0.15);
    top: -200px;
    right: -200px;
    animation-delay: 0s;
}

.hero-shape-2 {
    width: 400px;
    height: 400px;
    background: rgba(0, 160, 233, 0.12);
    bottom: -100px;
    left: -100px;
    animation-delay: 2s;
}

.hero-shape-3 {
    width: 300px;
    height: 300px;
    background: rgba(124, 77, 255, 0.1);
    top: 50%;
    left: 50%;
    animation-delay: 4s;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: center;
    padding: var(--spacing-4xl) 0;
}

.hero-text {
    z-index: 2;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background: rgba(255, 105, 0, 0.1);
    border-radius: var(--radius-full);
    color: var(--primary-color);
    font-size: var(--font-size-sm);
    font-weight: var(--font-semibold);
    margin-bottom: var(--spacing-lg);
}

.hero-title {
    font-size: var(--font-size-hero);
    font-weight: var(--font-black);
    line-height: 1.1;
    margin-bottom: var(--spacing-lg);
    letter-spacing: -3px;
}

.hero-title .highlight {
    background: var(--text-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xl);
    line-height: var(--line-height-relaxed);
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-2xl);
}

.hero-stats {
    display: flex;
    gap: var(--spacing-2xl);
}

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

.stat-number {
    font-size: var(--font-size-4xl);
    font-weight: var(--font-black);
    color: var(--primary-color);
    line-height: 1;
    margin-bottom: var(--spacing-xs);
}

.stat-label {
    font-size: var(--font-size-sm);
    color: var(--text-light);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.hero-visual {
    position: relative;
    z-index: 2;
}

.hero-image-container {
    position: relative;
    perspective: 1000px;
}

.hero-image {
    width: 100%;
    max-width: 600px;
    margin: 0 auto;
    filter: drop-shadow(0 30px 60px rgba(0, 0, 0, 0.15));
    animation: heroFloat 6s ease-in-out infinite;
}

.hero-phone-mockup {
    position: relative;
    display: flex;
    justify-content: center;
}

.hero-phone-frame {
    width: 300px;
    height: 600px;
    background: var(--bg-dark);
    border-radius: 40px;
    padding: 12px;
    box-shadow: var(--shadow-xl);
    animation: phoneFloat 4s ease-in-out infinite;
}

.hero-phone-screen {
    width: 100%;
    height: 100%;
    background: linear-gradient(180deg, #FF6900 0%, #FF8533 50%, #FFA366 100%);
    border-radius: 32px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: white;
    text-align: center;
    padding: var(--spacing-xl);
}

.hero-phone-screen svg {
    width: 80px;
    height: 80px;
    margin-bottom: var(--spacing-md);
}

.hero-floating-card {
    position: absolute;
    background: white;
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    box-shadow: var(--shadow-lg);
    animation: cardFloat 5s ease-in-out infinite;
}

.hero-card-1 {
    top: 50px;
    left: -50px;
    animation-delay: 0.5s;
}

.hero-card-2 {
    bottom: 100px;
    right: -30px;
    animation-delay: 1s;
}

.hero-card-3 {
    top: 200px;
    right: -80px;
    animation-delay: 1.5s;
}

/* ==========================================================================
   Features Section
   ========================================================================== */
.features-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-lg);
}

.feature-card {
    background: white;
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    text-align: center;
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
    border: 1px solid var(--border-light);
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--primary-gradient);
    transform: scaleX(0);
    transform-origin: left;
    transition: var(--transition-normal);
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.feature-card:hover::before {
    transform: scaleX(1);
}

.feature-icon {
    width: 72px;
    height: 72px;
    margin: 0 auto var(--spacing-lg);
    background: linear-gradient(135deg, rgba(255, 105, 0, 0.1) 0%, rgba(255, 133, 51, 0.1) 100%);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-normal);
}

.feature-card:hover .feature-icon {
    background: var(--primary-gradient);
    transform: scale(1.1) rotate(5deg);
}

.feature-icon svg {
    width: 36px;
    height: 36px;
    color: var(--primary-color);
    transition: var(--transition-normal);
}

.feature-card:hover .feature-icon svg {
    color: white;
}

.feature-title {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-sm);
}

.feature-description {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    line-height: var(--line-height-relaxed);
}

/* ==========================================================================
   Services Section
   ========================================================================== */
.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-xl);
}

.service-card {
    background: white;
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl);
    position: relative;
    overflow: hidden;
    transition: var(--transition-slow);
    border: 1px solid var(--border-light);
    group: service;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--primary-gradient);
    opacity: 0;
    transition: var(--transition-slow);
    z-index: 0;
}

.service-card:hover {
    transform: translateY(-10px) scale(1.02);
    box-shadow: var(--shadow-xl);
}

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

.service-card:hover .service-icon {
    background: white;
}

.service-card:hover .service-icon svg {
    color: var(--primary-color);
}

.service-card:hover .service-title,
.service-card:hover .service-description {
    color: white;
}

.service-content {
    position: relative;
    z-index: 1;
}

.service-icon {
    width: 80px;
    height: 80px;
    background: rgba(255, 105, 0, 0.1);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-lg);
    transition: var(--transition-slow);
}

.service-icon svg {
    width: 40px;
    height: 40px;
    color: var(--primary-color);
    transition: var(--transition-slow);
}

.service-title {
    font-size: var(--font-size-2xl);
    margin-bottom: var(--spacing-md);
    transition: var(--transition-slow);
}

.service-description {
    font-size: var(--font-size-base);
    color: var(--text-secondary);
    line-height: var(--line-height-relaxed);
    transition: var(--transition-slow);
}

.service-link {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-lg);
    color: var(--primary-color);
    font-weight: var(--font-semibold);
    transition: var(--transition-normal);
}

.service-link svg {
    width: 20px;
    height: 20px;
    transition: var(--transition-normal);
}

.service-card:hover .service-link {
    color: white;
}

.service-card:hover .service-link svg {
    transform: translateX(5px);
}

/* ==========================================================================
   Mobile App Section
   ========================================================================== */
.app-showcase {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: center;
}

.app-content {
    padding-right: var(--spacing-2xl);
}

.app-features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.app-feature {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
}

.app-feature-icon {
    width: 48px;
    height: 48px;
    background: rgba(255, 105, 0, 0.1);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.app-feature-icon svg {
    width: 24px;
    height: 24px;
    color: var(--primary-color);
}

.app-feature-text h4 {
    font-size: var(--font-size-base);
    margin-bottom: var(--spacing-xs);
}

.app-feature-text p {
    font-size: var(--font-size-sm);
    color: var(--text-light);
    margin: 0;
}

.app-visual {
    position: relative;
}

.app-devices {
    display: flex;
    justify-content: center;
    gap: var(--spacing-xl);
    perspective: 1000px;
}

.app-phone {
    width: 280px;
    height: 560px;
    background: var(--bg-dark);
    border-radius: 36px;
    padding: 10px;
    box-shadow: var(--shadow-xl);
    animation: appFloat 5s ease-in-out infinite;
}

.app-phone-main {
    transform: scale(1.1);
    z-index: 2;
    animation-delay: 0s;
}

.app-phone-secondary {
    transform: scale(0.9) translateY(30px);
    opacity: 0.7;
    animation-delay: 0.5s;
}

.app-phone-screen {
    width: 100%;
    height: 100%;
    background: linear-gradient(180deg, #1A1A1A 0%, #2D2D2D 100%);
    border-radius: 28px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.app-screen-header {
    background: rgba(255, 105, 0, 0.2);
    padding: var(--spacing-md);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.app-screen-header span {
    color: white;
    font-size: var(--font-size-sm);
}

.app-screen-content {
    flex: 1;
    padding: var(--spacing-md);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.app-screen-card {
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    padding: var(--spacing-sm);
    color: white;
    font-size: var(--font-size-xs);
}

/* App Store Badges */
.app-store-badges {
    display: flex;
    gap: var(--spacing-md);
    margin-top: var(--spacing-xl);
}

.store-badge {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--bg-dark);
    border-radius: var(--radius-md);
    color: white;
    transition: var(--transition-normal);
}

.store-badge:hover {
    background: var(--primary-color);
    transform: translateY(-2px);
}

.store-badge svg {
    width: 24px;
    height: 24px;
}

.store-badge-text {
    text-align: left;
}

.store-badge-text span {
    display: block;
    font-size: var(--font-size-xs);
    opacity: 0.7;
}

.store-badge-text strong {
    font-size: var(--font-size-sm);
}

/* ==========================================================================
   Stats Section
   ========================================================================== */
.stats-section {
    background: var(--primary-gradient);
    padding: var(--spacing-4xl) 0;
    position: relative;
    overflow: hidden;
}

.stats-bg-pattern {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0.1;
    background-image: 
        radial-gradient(circle at 20% 50%, white 1px, transparent 1px),
        radial-gradient(circle at 80% 50%, white 1px, transparent 1px);
    background-size: 60px 60px;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-xl);
    position: relative;
    z-index: 1;
}

.stat-card {
    text-align: center;
    color: white;
}

.stat-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto var(--spacing-md);
    background: rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
}

.stat-icon svg {
    width: 32px;
    height: 32px;
}

.stat-value {
    font-size: var(--font-size-5xl);
    font-weight: var(--font-black);
    line-height: 1;
    margin-bottom: var(--spacing-sm);
}

.stat-label {
    font-size: var(--font-size-base);
    opacity: 0.9;
}

/* ==========================================================================
   CTA Section
   ========================================================================== */
.cta-section {
    padding: var(--spacing-4xl) 0;
    background: var(--bg-secondary);
    position: relative;
    overflow: hidden;
}

.cta-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.cta-title {
    font-size: var(--font-size-5xl);
    margin-bottom: var(--spacing-lg);
}

.cta-description {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xl);
}

.cta-buttons {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
}

/* ==========================================================================
   Footer
   ========================================================================== */
.footer {
    background: var(--bg-dark);
    color: var(--text-white);
    padding-top: var(--spacing-4xl);
}

.footer-main {
    display: grid;
    grid-template-columns: 2fr repeat(4, 1fr);
    gap: var(--spacing-2xl);
    padding-bottom: var(--spacing-3xl);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-brand {
    max-width: 350px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
}

.footer-logo svg {
    width: 48px;
    height: 48px;
}

.footer-logo-text {
    font-size: var(--font-size-xl);
    font-weight: var(--font-bold);
}

.footer-logo-text span {
    color: var(--primary-color);
}

.footer-description {
    font-size: var(--font-size-sm);
    color: rgba(255, 255, 255, 0.7);
    line-height: var(--line-height-relaxed);
    margin-bottom: var(--spacing-lg);
}

.footer-social {
    display: flex;
    gap: var(--spacing-md);
}

.social-link {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-normal);
}

.social-link:hover {
    background: var(--primary-color);
    transform: translateY(-3px);
}

.social-link svg {
    width: 20px;
    height: 20px;
}

.footer-column h4 {
    font-size: var(--font-size-base);
    font-weight: var(--font-semibold);
    margin-bottom: var(--spacing-lg);
    color: var(--text-white);
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.footer-link {
    font-size: var(--font-size-sm);
    color: rgba(255, 255, 255, 0.7);
    transition: var(--transition-normal);
}

.footer-link:hover {
    color: var(--primary-color);
    padding-left: var(--spacing-sm);
}

.footer-contact {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.footer-contact-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    font-size: var(--font-size-sm);
    color: rgba(255, 255, 255, 0.7);
}

.footer-contact-item svg {
    width: 20px;
    height: 20px;
    color: var(--primary-color);
    flex-shrink: 0;
    margin-top: 2px;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-lg) 0;
}

.footer-copyright {
    font-size: var(--font-size-sm);
    color: rgba(255, 255, 255, 0.5);
}

.footer-legal {
    display: flex;
    gap: var(--spacing-lg);
}

.footer-legal a {
    font-size: var(--font-size-sm);
    color: rgba(255, 255, 255, 0.5);
    transition: var(--transition-normal);
}

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

/* ==========================================================================
   Page Header
   ========================================================================== */
.page-header {
    padding: calc(var(--header-height) + var(--spacing-3xl)) 0 var(--spacing-3xl);
    background: linear-gradient(135deg, #FFF7F0 0%, #FFFFFF 100%);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.page-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 30% 50%, rgba(255, 105, 0, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 70% 50%, rgba(0, 160, 233, 0.1) 0%, transparent 50%);
}

.page-header-content {
    position: relative;
    z-index: 1;
}

.breadcrumb {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
    font-size: var(--font-size-sm);
}

.breadcrumb a {
    color: var(--text-secondary);
}

.breadcrumb a:hover {
    color: var(--primary-color);
}

.breadcrumb span {
    color: var(--text-light);
}

.page-title {
    font-size: var(--font-size-5xl);
    margin-bottom: var(--spacing-md);
}

.page-subtitle {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* ==========================================================================
   Forms
   ========================================================================== */
.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-label {
    display: block;
    font-size: var(--font-size-sm);
    font-weight: var(--font-medium);
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.form-input,
.form-textarea,
.form-select {
    width: 100%;
    padding: var(--spacing-md);
    font-size: var(--font-size-base);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    background: var(--bg-primary);
    transition: var(--transition-normal);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 4px rgba(255, 105, 0, 0.1);
}

.form-textarea {
    min-height: 150px;
    resize: vertical;
}

.form-checkbox {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    cursor: pointer;
}

.form-checkbox input {
    width: 20px;
    height: 20px;
    accent-color: var(--primary-color);
}

.form-checkbox span {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

.form-checkbox a {
    color: var(--primary-color);
}

/* ==========================================================================
   Cards
   ========================================================================== */
.card {
    background: white;
    border-radius: var(--radius-xl);
    overflow: hidden;
    transition: var(--transition-normal);
    border: 1px solid var(--border-light);
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.card-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.card-content {
    padding: var(--spacing-lg);
}

.card-meta {
    display: flex;
    gap: var(--spacing-md);
    font-size: var(--font-size-sm);
    color: var(--text-light);
    margin-bottom: var(--spacing-sm);
}

.card-title {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-sm);
}

.card-description {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
}

.card-link {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--primary-color);
    font-weight: var(--font-semibold);
    font-size: var(--font-size-sm);
}

.card-link svg {
    width: 16px;
    height: 16px;
    transition: var(--transition-normal);
}

.card:hover .card-link svg {
    transform: translateX(4px);
}

/* ==========================================================================
   Team Section
   ========================================================================== */
.team-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-xl);
}

.team-member {
    text-align: center;
}

.team-image {
    width: 180px;
    height: 180px;
    margin: 0 auto var(--spacing-lg);
    border-radius: var(--radius-full);
    background: var(--bg-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    transition: var(--transition-normal);
    border: 4px solid transparent;
}

.team-member:hover .team-image {
    border-color: var(--primary-color);
    transform: scale(1.05);
}

.team-image svg {
    width: 80px;
    height: 80px;
    color: var(--text-light);
}

.team-name {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-xs);
}

.team-role {
    font-size: var(--font-size-sm);
    color: var(--primary-color);
}

/* ==========================================================================
   Timeline
   ========================================================================== */
.timeline {
    position: relative;
    padding-left: var(--spacing-2xl);
}

.timeline::before {
    content: '';
    position: absolute;
    left: 8px;
    top: 0;
    height: 100%;
    width: 2px;
    background: var(--border-color);
}

.timeline-item {
    position: relative;
    padding-bottom: var(--spacing-xl);
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: calc(-1 * var(--spacing-2xl) + 4px);
    top: 4px;
    width: 12px;
    height: 12px;
    background: var(--primary-color);
    border-radius: var(--radius-full);
    border: 3px solid white;
    box-shadow: var(--shadow-sm);
}

.timeline-year {
    font-size: var(--font-size-sm);
    font-weight: var(--font-semibold);
    color: var(--primary-color);
    margin-bottom: var(--spacing-xs);
}

.timeline-title {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-sm);
}

.timeline-description {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

/* ==========================================================================
   Values Grid
   ========================================================================== */
.values-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-xl);
}

.value-card {
    display: flex;
    gap: var(--spacing-lg);
    padding: var(--spacing-xl);
    background: white;
    border-radius: var(--radius-xl);
    border: 1px solid var(--border-light);
    transition: var(--transition-normal);
}

.value-card:hover {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-lg);
    transform: translateX(10px);
}

.value-icon {
    width: 64px;
    height: 64px;
    background: rgba(255, 105, 0, 0.1);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.value-icon svg {
    width: 32px;
    height: 32px;
    color: var(--primary-color);
}

.value-content h4 {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-sm);
}

.value-content p {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    margin: 0;
}

/* ==========================================================================
   News Grid
   ========================================================================== */
.news-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-xl);
}

.news-featured {
    grid-column: span 2;
    grid-row: span 2;
}

.news-featured .card-image {
    height: 400px;
}

/* ==========================================================================
   Contact Info
   ========================================================================== */
.contact-info-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-xl);
}

.contact-info-card {
    background: white;
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    text-align: center;
    border: 1px solid var(--border-light);
    transition: var(--transition-normal);
}

.contact-info-card:hover {
    border-color: var(--primary-color);
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.contact-info-icon {
    width: 72px;
    height: 72px;
    margin: 0 auto var(--spacing-lg);
    background: rgba(255, 105, 0, 0.1);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
}

.contact-info-icon svg {
    width: 36px;
    height: 36px;
    color: var(--primary-color);
}

.contact-info-title {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-sm);
}

.contact-info-text {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

.contact-info-text a {
    color: var(--primary-color);
}

/* ==========================================================================
   Map Section
   ========================================================================== */
.map-container {
    width: 100%;
    height: 450px;
    background: var(--bg-secondary);
    border-radius: var(--radius-xl);
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--border-light);
}

.map-placeholder {
    text-align: center;
    color: var(--text-light);
}

.map-placeholder svg {
    width: 64px;
    height: 64px;
    margin-bottom: var(--spacing-md);
}

/* ==========================================================================
   Policy Pages
   ========================================================================== */
.policy-content {
    max-width: 900px;
    margin: 0 auto;
    padding: var(--spacing-2xl) var(--spacing-xl);
}

.policy-section {
    margin-bottom: var(--spacing-2xl);
}

.policy-section h2 {
    font-size: var(--font-size-2xl);
    margin-bottom: var(--spacing-lg);
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.policy-section h2 svg {
    width: 28px;
    height: 28px;
    color: var(--primary-color);
}

.policy-section h3 {
    font-size: var(--font-size-xl);
    margin: var(--spacing-lg) 0 var(--spacing-md);
}

.policy-section h4 {
    font-size: var(--font-size-lg);
    margin: var(--spacing-md) 0 var(--spacing-sm);
}

.policy-section p {
    color: var(--text-secondary);
    line-height: var(--line-height-relaxed);
    margin-bottom: var(--spacing-md);
}

.policy-section ul {
    margin-bottom: var(--spacing-md);
    padding-left: var(--spacing-xl);
}

.policy-section li {
    color: var(--text-secondary);
    line-height: var(--line-height-relaxed);
    margin-bottom: var(--spacing-sm);
    position: relative;
    padding-left: var(--spacing-md);
}

.policy-section li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: bold;
}

.policy-highlight {
    background: rgba(255, 105, 0, 0.05);
    border-left: 4px solid var(--primary-color);
    padding: var(--spacing-lg);
    margin: var(--spacing-lg) 0;
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
}

.policy-highlight p {
    margin: 0;
    color: var(--text-primary);
}

/* ==========================================================================
   Utility Classes
   ========================================================================== */
.hidden {
    display: none !important;
}

.visible {
    display: block !important;
}

.flex {
    display: flex;
}

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

.flex-between {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.grid {
    display: grid;
}

.gap-sm { gap: var(--spacing-sm); }
.gap-md { gap: var(--spacing-md); }
.gap-lg { gap: var(--spacing-lg); }
.gap-xl { gap: var(--spacing-xl); }

.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.mt-xl { margin-top: var(--spacing-xl); }
.mt-2xl { margin-top: var(--spacing-2xl); }

.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }
.mb-xl { margin-bottom: var(--spacing-xl); }
.mb-2xl { margin-bottom: var(--spacing-2xl); }

.py-sm { padding-top: var(--spacing-sm); padding-bottom: var(--spacing-sm); }
.py-md { padding-top: var(--spacing-md); padding-bottom: var(--spacing-md); }
.py-lg { padding-top: var(--spacing-lg); padding-bottom: var(--spacing-lg); }
.py-xl { padding-top: var(--spacing-xl); padding-bottom: var(--spacing-xl); }

.px-sm { padding-left: var(--spacing-sm); padding-right: var(--spacing-sm); }
.px-md { padding-left: var(--spacing-md); padding-right: var(--spacing-md); }
.px-lg { padding-left: var(--spacing-lg); padding-right: var(--spacing-lg); }
.px-xl { padding-left: var(--spacing-xl); padding-right: var(--spacing-xl); }

/* ==========================================================================
   Responsive Design
   ========================================================================== */

/* Large Screens */
@media (max-width: 1200px) {
    :root {
        --font-size-hero: 56px;
        --font-size-5xl: 40px;
        --font-size-4xl: 32px;
    }
    
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-main {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .footer-brand {
        grid-column: span 3;
        max-width: 100%;
    }
}

/* Tablets */
@media (max-width: 992px) {
    :root {
        --font-size-hero: 48px;
        --font-size-5xl: 36px;
        --font-size-4xl: 28px;
        --header-height: 70px;
    }
    
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .hero-stats {
        justify-content: center;
    }
    
    .hero-visual {
        display: none;
    }
    
    .app-showcase {
        grid-template-columns: 1fr;
    }
    
    .app-content {
        padding-right: 0;
        text-align: center;
    }
    
    .app-features {
        justify-content: center;
    }
    
    .app-store-badges {
        justify-content: center;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .team-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .news-grid {
        grid-template-columns: 1fr;
    }
    
    .news-featured {
        grid-column: span 1;
        grid-row: span 1;
    }
    
    .news-featured .card-image {
        height: 250px;
    }
    
    .contact-info-grid {
        grid-template-columns: 1fr;
    }
    
    .values-grid {
        grid-template-columns: 1fr;
    }
    
    .nav-list {
        position: fixed;
        top: var(--header-height);
        left: 0;
        width: 100%;
        height: calc(100vh - var(--header-height));
        background: white;
        flex-direction: column;
        align-items: center;
        justify-content: flex-start;
        padding-top: var(--spacing-2xl);
        gap: var(--spacing-xl);
        transform: translateX(100%);
        transition: var(--transition-normal);
    }
    
    .nav-list.active {
        transform: translateX(0);
    }
    
    .menu-toggle {
        display: flex;
    }
}

/* Mobile */
@media (max-width: 768px) {
    :root {
        --font-size-hero: 36px;
        --font-size-5xl: 28px;
        --font-size-4xl: 24px;
        --font-size-3xl: 22px;
        --container-padding: 16px;
    }
    
    .section {
        padding: var(--spacing-3xl) 0;
    }
    
    .features-grid,
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .app-features {
        grid-template-columns: 1fr;
    }
    
    .app-devices {
        flex-direction: column;
        align-items: center;
    }
    
    .app-phone {
        width: 250px;
        height: 500px;
    }
    
    .app-phone-secondary {
        display: none;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .stat-card {
        padding: var(--spacing-md);
    }
    
    .footer-main {
        grid-template-columns: 1fr;
    }
    
    .footer-brand {
        grid-column: span 1;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: var(--spacing-md);
        text-align: center;
    }
    
    .footer-legal {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .cta-buttons {
        flex-direction: column;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .team-grid {
        grid-template-columns: 1fr;
    }
    
    .col-2, .col-3, .col-4, .col-6, .col-8, .col-12 {
        flex: 0 0 100%;
        max-width: 100%;
    }
}

/* Small Mobile */
@media (max-width: 480px) {
    :root {
        --font-size-hero: 32px;
        --font-size-5xl: 24px;
    }
    
    .hero-title {
        letter-spacing: -1px;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: var(--spacing-md);
    }
    
    .stat-item {
        display: flex;
        align-items: center;
        gap: var(--spacing-md);
    }
    
    .stat-number {
        font-size: var(--font-size-3xl);
    }
    
    .app-store-badges {
        flex-direction: column;
    }
    
    .store-badge {
        justify-content: center;
    }
}