/* ===================================
   SAMBE GROUP - PROFESSIONAL DESIGN SYSTEM
   Corporate, Clean, Business-Appropriate
   =================================== */

/* ===================================
   CSS VARIABLES - DESIGN TOKENS
   =================================== */
:root {
    /* Professional Color Palette - Corporate Blue & Gray */
    --color-primary: #1e40af;
    --color-primary-light: #3b82f6;
    --color-primary-dark: #1e3a8a;
    --color-secondary: #64748b;
    --color-secondary-light: #94a3b8;
    --color-accent: #f59e0b;

    /* Neutral Colors */
    --color-white: #ffffff;
    --color-gray-50: #f9fafb;
    --color-gray-100: #f3f4f6;
    --color-gray-200: #e5e7eb;
    --color-gray-300: #d1d5db;
    --color-gray-600: #4b5563;
    --color-gray-700: #374151;
    --color-gray-800: #1f2937;
    --color-gray-900: #111827;

    /* Typography - Professional Sizing */
    --font-family-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-family-heading: 'Poppins', var(--font-family-sans);

    --font-size-xs: 0.75rem;
    /* 12px */
    --font-size-sm: 0.875rem;
    /* 14px */
    --font-size-base: 1rem;
    /* 16px */
    --font-size-lg: 1.125rem;
    /* 18px */
    --font-size-xl: 1.25rem;
    /* 20px */
    --font-size-2xl: 1.5rem;
    /* 24px */
    --font-size-3xl: 1.875rem;
    /* 30px */
    --font-size-4xl: 2rem;
    /* 32px - reduced from flashy design */

    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;

    --line-height-tight: 1.25;
    --line-height-normal: 1.5;
    --line-height-relaxed: 1.75;

    /* Professional Spacing */
    --space-xs: 0.25rem;
    /* 4px */
    --space-sm: 0.5rem;
    /* 8px */
    --space-md: 1rem;
    /* 16px */
    --space-lg: 1.5rem;
    /* 24px */
    --space-xl: 2rem;
    /* 32px */
    --space-2xl: 3rem;
    /* 48px */
    --space-3xl: 4rem;
    /* 64px */

    /* Shadows - Subtle and Professional */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);

    /* Border Radius */
    --radius-sm: 0.25rem;
    --radius-md: 0.375rem;
    --radius-lg: 0.5rem;

    /* Transitions */
    --transition-fast: 150ms ease-in-out;
    --transition-base: 200ms ease-in-out;
    --transition-slow: 300ms ease-in-out;
}

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

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

body {
    font-family: var(--font-family-sans);
    font-size: var(--font-size-base);
    line-height: var(--line-height-normal);
    color: var(--color-gray-800);
    background-color: var(--color-white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ===================================
               TYPOGRAPHY
   =================================== */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-family-heading);
    font-weight: var(--font-weight-bold);
    line-height: var(--line-height-tight);
    color: var(--color-gray-900);
    margin-bottom: var(--space-md);
}

h1 {
    font-size: var(--font-size-4xl);
}

h2 {
    font-size: var(--font-size-3xl);
}

h3 {
    font-size: var(--font-size-2xl);
}

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

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

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

p {
    margin-bottom: var(--space-md);
    color: var(--color-gray-700);
}

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color var(--transition-base);
}

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

/* ===================================
   LAYOUT UTILITIES
   =================================== */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

.section {
    padding: var(--space-3xl) 0;
}

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

.text-gray {
    color: var(--color-gray-600);
}

.bg-gray {
    background-color: var(--color-gray-50);
}

/* Grid System */
.grid {
    display: grid;
    gap: var(--space-xl);
}

.grid-cols-2 {
    grid-template-columns: repeat(2, 1fr);
}

.grid-cols-3 {
    grid-template-columns: repeat(3, 1fr);
}

.grid-cols-4 {
    grid-template-columns: repeat(4, 1fr);
}

/* Spacing Utilities */
.mb-sm {
    margin-bottom: var(--space-sm);
}

.mb-md {
    margin-bottom: var(--space-md);
}

.mb-lg {
    margin-bottom: var(--space-lg);
}

.mb-xl {
    margin-bottom: var(--space-xl);
}

.mb-2xl {
    margin-bottom: var(--space-2xl);
}

/* ===================================
   HEADER & NAVIGATION - PREMIUM
   =================================== */
.header {
    background: #ffffff;
    border-bottom: 1px solid rgba(0, 0, 0, 0.06);
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: all 0.3s ease;
}

.header.scrolled {
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 0;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
}

.nav-logo svg {
    width: 36px;
    height: 36px;
    color: var(--color-primary);
}

.nav-logo span {
    font-family: 'Poppins', sans-serif;
    font-weight: 700;
    font-size: 22px;
    color: var(--color-primary);
    letter-spacing: -0.02em;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 8px;
    align-items: center;
}

.nav-link {
    font-size: 15px;
    font-weight: 500;
    color: var(--color-gray-600);
    padding: 10px 18px;
    border-radius: 8px;
    transition: all 0.2s ease;
    position: relative;
}

.nav-link:hover {
    color: var(--color-primary);
    background: rgba(30, 64, 175, 0.06);
}

.nav-link.active {
    color: var(--color-primary);
    background: rgba(30, 64, 175, 0.08);
    font-weight: 600;
}

.nav-dropdown {
    position: relative;
}

.nav-dropdown-menu {
    position: absolute;
    top: calc(100% + 8px);
    left: 50%;
    transform: translateX(-50%);
    background-color: #ffffff;
    border: 1px solid rgba(0, 0, 0, 0.08);
    border-radius: 12px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.12);
    min-width: 220px;
    padding: 8px;
    opacity: 0;
    visibility: hidden;
    transition: all 0.2s ease;
}

.nav-dropdown-menu::before {
    content: '';
    position: absolute;
    top: -6px;
    left: 50%;
    transform: translateX(-50%) rotate(45deg);
    width: 12px;
    height: 12px;
    background: #ffffff;
    border-left: 1px solid rgba(0, 0, 0, 0.08);
    border-top: 1px solid rgba(0, 0, 0, 0.08);
}

.nav-dropdown:hover .nav-dropdown-menu {
    opacity: 1;
    visibility: visible;
}

.nav-dropdown-item {
    display: block;
    padding: 12px 16px;
    color: var(--color-gray-700);
    border-radius: 8px;
    transition: all 0.15s ease;
    font-size: 14px;
    font-weight: 500;
}

.nav-dropdown-item:hover {
    background: rgba(30, 64, 175, 0.06);
    color: var(--color-primary);
    padding-left: 20px;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 10px;
    border-radius: 8px;
    transition: background 0.2s ease;
    z-index: 1001;
    position: relative;
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
}

.nav-toggle:hover,
.nav-toggle:active {
    background: rgba(0, 0, 0, 0.05);
}

.nav-toggle span {
    width: 22px;
    height: 2px;
    background-color: var(--color-gray-700);
    border-radius: 2px;
    transition: all 0.3s ease;
}

/* Contact button in nav */
.nav-menu li:last-child .nav-link {
    background: var(--color-primary);
    color: white;
    padding: 10px 24px;
}

.nav-menu li:last-child .nav-link:hover {
    background: var(--color-primary-dark);
    color: white;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(30, 64, 175, 0.3);
}

@media (max-width: 768px) {
    .nav-menu {
        display: none;
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        bottom: 0;
        background: #ffffff;
        flex-direction: column;
        padding: 24px;
        gap: 8px;
        z-index: 999;
        overflow-y: auto;
    }
    
    .nav-menu.active {
        display: flex;
    }
    
    .nav-menu li {
        width: 100%;
    }
    
    .nav-link {
        display: block;
        padding: 16px 20px;
        font-size: 16px;
        border-radius: 8px;
    }
    
    .nav-menu li:last-child .nav-link {
        text-align: center;
        margin-top: 16px;
    }
    
    .nav-dropdown-menu {
        position: static;
        transform: none;
        box-shadow: none;
        border: none;
        background: var(--color-gray-50);
        border-radius: 8px;
        margin-top: 8px;
        padding: 8px;
        opacity: 1;
        visibility: visible;
    }
    
    .nav-dropdown-menu::before {
        display: none;
    }

    .nav-toggle {
        display: flex;
        position: relative;
        z-index: 1001;
    }
    
    .nav-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }
    
    .nav-toggle.active span:nth-child(2) {
        opacity: 0;
    }
    
    .nav-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(5px, -5px);
    }
}

/* ===================================
   HERO SECTION - PREMIUM DESIGN
   =================================== */
.hero {
    background: linear-gradient(135deg, rgba(30, 64, 175, 0.92) 0%, rgba(37, 99, 235, 0.88) 100%),
        url('https://images.unsplash.com/photo-1486406146926-c627a92ad1ab?w=1920&q=80') center/cover no-repeat;
    color: var(--color-white);
    padding: 120px 0 140px;
    min-height: 600px;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 50%, rgba(255, 255, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 50%, rgba(255, 255, 255, 0.08) 0%, transparent 50%);
    pointer-events: none;
}

.hero-overlay {
    display: none;
}

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

.hero-content {
    max-width: 850px;
    margin: 0 auto;
    text-align: center;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    background: rgba(255, 255, 255, 0.12);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 6px;
    font-size: 13px;
    font-weight: 600;
    color: #ffffff;
    margin-bottom: 28px;
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

.hero-badge svg {
    width: 16px;
    height: 16px;
}

.hero-title {
    font-size: 52px;
    color: #ffffff;
    margin-bottom: 24px;
    font-weight: 700;
    line-height: 1.15;
    letter-spacing: -0.02em;
}

.hero-subtitle {
    font-size: 18px;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 40px;
    line-height: 1.7;
    max-width: 650px;
    margin-left: auto;
    margin-right: auto;
}

.hero-cta {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

.hero-cta .btn-primary {
    background: #ffffff;
    color: var(--color-primary);
    border: 2px solid #ffffff;
    padding: 16px 32px;
    font-size: 16px;
    font-weight: 600;
    border-radius: 8px;
}

.hero-cta .btn-primary:hover {
    background: transparent;
    color: #ffffff;
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.hero-cta .btn-secondary {
    background: transparent;
    color: #ffffff;
    border: 2px solid rgba(255, 255, 255, 0.4);
    padding: 16px 32px;
    font-size: 16px;
    font-weight: 600;
    border-radius: 8px;
}

.hero-cta .btn-secondary:hover {
    background: #ffffff;
    color: var(--color-primary);
    border-color: #ffffff;
    transform: translateY(-2px);
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 60px;
    margin-top: 60px;
    padding-top: 40px;
    border-top: 1px solid rgba(255, 255, 255, 0.15);
}

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

.hero-stat-number {
    font-size: 36px;
    font-weight: 700;
    color: #ffffff;
    line-height: 1;
    margin-bottom: 8px;
}

.hero-stat-label {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.75);
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Page Hero - For inner pages */
.page-hero {
    background: linear-gradient(135deg, rgba(30, 64, 175, 0.92) 0%, rgba(37, 99, 235, 0.88) 100%),
        url('https://images.unsplash.com/photo-1486406146926-c627a92ad1ab?w=1920&q=80') center/cover no-repeat;
    padding: 80px 0;
    text-align: center;
    position: relative;
}

.page-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 50%, rgba(255, 255, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 50%, rgba(255, 255, 255, 0.08) 0%, transparent 50%);
    pointer-events: none;
}

.page-hero .container {
    position: relative;
    z-index: 1;
}

.page-hero-title {
    font-size: 42px;
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 16px;
}

.page-hero-subtitle {
    font-size: 18px;
    color: rgba(255, 255, 255, 0.85);
    max-width: 600px;
    margin: 0 auto;
}

.breadcrumb {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-top: 20px;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.7);
}

.breadcrumb a {
    color: rgba(255, 255, 255, 0.85);
    transition: color 0.2s;
}

.breadcrumb a:hover {
    color: #ffffff;
}

.breadcrumb span {
    color: rgba(255, 255, 255, 0.5);
}

@media (max-width: 768px) {
    .hero {
        padding: 80px 0 100px;
        min-height: 500px;
    }
    
    .hero-title {
        font-size: 36px;
    }
    
    .hero-subtitle {
        font-size: 16px;
    }
    
    .hero-stats {
        gap: 30px;
        flex-wrap: wrap;
    }
    
    .hero-stat-number {
        font-size: 28px;
    }
    
    .page-hero {
        padding: 60px 0;
    }
    
    .page-hero-title {
        font-size: 32px;
    }
}

/* ===================================
   BUTTONS
   =================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-lg);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-medium);
    border-radius: var(--radius-md);
    border: 2px solid #1e40af;
    cursor: pointer;
    transition: all var(--transition-base);
    text-align: center;
    font-family: var(--font-family-sans);
}

.btn-primary {
    background-color: var(--color-primary);
    color: var(--color-white);
    border-color: #1e40af;
}

.btn-primary:hover {
    background-color: var(--color-primary-dark);
    border-color: var(--color-primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

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

.btn-secondary:hover {
    background-color: var(--color-gray-50);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-lg {
    padding: var(--space-md) var(--space-xl);
    font-size: var(--font-size-lg);
}

/* ===================================
   CARDS - COMPANY CARDS
   =================================== */
.companies-section {
    padding: 100px 0;
}

.companies-section .section-header {
    text-align: center;
    margin-bottom: 60px;
}

.companies-section .section-subtitle {
    font-size: 14px;
    font-weight: 600;
    color: var(--color-primary);
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 12px;
}

.companies-section .section-title {
    font-size: 36px;
    font-weight: 700;
    color: var(--color-gray-900);
    margin-bottom: 16px;
}

.companies-section .section-desc {
    font-size: 16px;
    color: var(--color-gray-600);
    max-width: 600px;
    margin: 0 auto;
}

.companies-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.company-card {
    background: white;
    border-radius: 16px;
    padding: 32px 24px;
    position: relative;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.04);
    border: 1px solid rgba(0, 0, 0, 0.06);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.company-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s ease;
}

.company-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(30, 64, 175, 0.15);
}

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

.company-card-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #eef2ff 0%, #e0e7ff 100%);
    border-radius: 12px;
    margin-bottom: 20px;
    color: var(--color-primary);
    transition: all 0.3s ease;
}

.company-card:hover .company-card-icon {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    color: white;
    transform: scale(1.1);
}

.company-card-icon svg {
    width: 26px;
    height: 26px;
}

.company-card-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--color-gray-900);
    margin-bottom: 12px;
}

.company-card-text {
    font-size: 14px;
    color: var(--color-gray-600);
    line-height: 1.7;
    margin-bottom: 20px;
}

.company-card-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 14px;
    font-weight: 600;
    color: var(--color-primary);
    transition: all 0.3s ease;
}

.company-card-link svg {
    width: 16px;
    height: 16px;
    transition: transform 0.3s ease;
}

.company-card:hover .company-card-link {
    gap: 10px;
}

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

/* Legacy card styles */
.card {
    background-color: var(--color-white);
    border: 1px solid var(--color-gray-200);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    transition: all var(--transition-base);
}

.card:hover {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.card-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--color-gray-50);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-md);
    color: var(--color-primary);
}

.card-icon svg {
    width: 24px;
    height: 24px;
}

.card-title {
    font-size: var(--font-size-xl);
    color: var(--color-gray-900);
    margin-bottom: var(--space-sm);
}

.card-text {
    color: var(--color-gray-600);
    margin-bottom: var(--space-lg);
    line-height: var(--line-height-relaxed);
}

.card-link {
    color: var(--color-primary);
    font-weight: var(--font-weight-medium);
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
}

.card-link:hover {
    gap: var(--space-sm);
}

@media (max-width: 1024px) {
    .companies-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 640px) {
    .companies-grid {
        grid-template-columns: 1fr;
    }
    
    .companies-section .section-title {
        font-size: 28px;
    }
}

/* Card with Image */
.card-image {
    padding: 0;
    overflow: hidden;
}

.card-image-wrapper {
    width: 100%;
    height: 220px;
    overflow: hidden;
    position: relative;
}

.card-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.card-image:hover .card-img {
    transform: scale(1.05);
}

.card-image .card-title,
.card-image .card-text,
.card-image .card-link {
    padding: 0 var(--space-xl);
}

.card-image .card-title {
    padding-top: var(--space-lg);
}

.card-image .card-link {
    padding-bottom: var(--space-xl);
    display: inline-block;
}

/* ===================================
   ABOUT SECTION - PREMIUM DESIGN
   =================================== */
.about-section {
    padding: 100px 0;
    background: #ffffff;
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.about-image {
    position: relative;
}

.about-image img {
    width: 100%;
    height: 500px;
    object-fit: cover;
    border-radius: 12px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.15);
}

.about-experience {
    position: absolute;
    bottom: -30px;
    right: -30px;
    background: var(--color-primary);
    color: white;
    padding: 28px 32px;
    border-radius: 12px;
    text-align: center;
    box-shadow: 0 20px 40px rgba(30, 64, 175, 0.3);
}

.experience-number {
    display: block;
    font-size: 48px;
    font-weight: 800;
    line-height: 1;
    font-family: var(--font-family-heading);
}

.experience-text {
    display: block;
    font-size: 14px;
    font-weight: 500;
    opacity: 0.9;
    margin-top: 4px;
    line-height: 1.3;
}

.about-content {
    padding-left: 20px;
}

.about-subtitle {
    font-size: 14px;
    font-weight: 600;
    color: var(--color-primary);
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 16px;
}

.about-title {
    font-size: 38px;
    font-weight: 700;
    color: var(--color-gray-900);
    line-height: 1.2;
    margin-bottom: 24px;
}

.about-text {
    font-size: 16px;
    line-height: 1.8;
    color: var(--color-gray-600);
    margin-bottom: 16px;
}

.about-features {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin: 32px 0;
}

.about-feature {
    display: flex;
    align-items: center;
    gap: 12px;
}

.about-feature svg {
    width: 22px;
    height: 22px;
    color: #10b981;
    flex-shrink: 0;
}

.about-feature span {
    font-size: 15px;
    font-weight: 500;
    color: var(--color-gray-700);
}

.about-btn {
    display: inline-block;
    padding: 14px 32px;
    background: var(--color-primary);
    color: white;
    border-radius: 8px;
    font-weight: 600;
    font-size: 15px;
    transition: all 0.3s ease;
}

.about-btn:hover {
    background: var(--color-primary-dark);
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(30, 64, 175, 0.3);
}

@media (max-width: 968px) {
    .about-grid {
        grid-template-columns: 1fr;
        gap: 60px;
    }
    
    .about-image img {
        height: 400px;
    }
    
    .about-experience {
        right: 20px;
        bottom: -20px;
    }
    
    .about-content {
        padding-left: 0;
    }
    
    .about-title {
        font-size: 30px;
    }
}

@media (max-width: 480px) {
    .about-section {
        padding: 60px 0;
    }
    
    .about-image img {
        height: 300px;
    }
    
    .about-experience {
        padding: 20px 24px;
    }
    
    .experience-number {
        font-size: 36px;
    }
    
    .about-title {
        font-size: 26px;
    }
}

/* ===================================
   WELCOME SECTION (Keep for compatibility)
   =================================== */
.welcome-section {
    background: linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
    position: relative;
    padding: 80px 0;
}

.welcome-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.welcome-left {
    text-align: left;
}

.welcome-subtitle {
    font-size: 14px;
    font-weight: 600;
    color: var(--color-primary);
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 16px;
}

.welcome-title {
    font-size: 36px;
    color: var(--color-gray-900);
    margin-bottom: 24px;
    font-weight: 700;
    line-height: 1.2;
}

.welcome-text {
    font-size: 16px;
    line-height: 1.8;
    color: var(--color-gray-600);
    margin-bottom: 32px;
}

.welcome-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 28px;
    background: var(--color-primary);
    color: white;
    border-radius: 6px;
    font-weight: 500;
    font-size: 15px;
    transition: all 0.3s ease;
}

.welcome-btn:hover {
    background: var(--color-primary-dark);
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 10px 20px -10px rgba(30, 64, 175, 0.5);
}

.welcome-btn svg {
    width: 18px;
    height: 18px;
    transition: transform 0.3s ease;
}

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

.welcome-right {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.welcome-stat {
    background: white;
    padding: 30px 24px;
    border-radius: 12px;
    text-align: center;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
    border: 1px solid rgba(0, 0, 0, 0.04);
    transition: all 0.3s ease;
}

.welcome-stat:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.1);
}

.welcome-stat-number {
    font-size: 42px;
    font-weight: 800;
    color: var(--color-primary);
    line-height: 1;
    margin-bottom: 8px;
}

.welcome-stat-label {
    font-size: 14px;
    color: var(--color-gray-600);
    font-weight: 500;
}

@media (max-width: 768px) {
    .welcome-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .welcome-left {
        text-align: center;
    }
    
    .welcome-title {
        font-size: 28px;
    }
}

/* ===================================
   SHOWCASE SECTION
   =================================== */
.showcase-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-lg);
}

.showcase-item {
    position: relative;
    height: 300px;
    border-radius: var(--radius-lg);
    overflow: hidden;
    cursor: pointer;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
}

.showcase-item:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.showcase-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.showcase-item:hover .showcase-img {
    transform: scale(1.1);
}

.showcase-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.8) 0%, rgba(0, 0, 0, 0.4) 70%, transparent 100%);
    padding: var(--space-xl);
    color: white;
    transform: translateY(0);
    transition: all var(--transition-base);
}

.showcase-overlay h3 {
    font-size: var(--font-size-xl);
    color: white;
    margin-bottom: var(--space-xs);
    font-weight: var(--font-weight-bold);
}

.showcase-overlay p {
    font-size: var(--font-size-base);
    color: rgba(255, 255, 255, 0.9);
    margin: 0;
}

.showcase-item:hover .showcase-overlay {
    background: linear-gradient(to top, rgba(30, 64, 175, 0.9) 0%, rgba(30, 64, 175, 0.6) 70%, transparent 100%);
}

/* ===================================
   FOOTER
   =================================== */
.footer {
    background-color: var(--color-gray-900);
    color: var(--color-gray-300);
    padding: var(--space-3xl) 0 var(--space-xl);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-2xl);
    margin-bottom: var(--space-2xl);
}

.footer-section h3 {
    color: var(--color-white);
    font-size: var(--font-size-lg);
    margin-bottom: var(--space-md);
}

.footer-section p {
    color: var(--color-gray-400);
    line-height: var(--line-height-relaxed);
}

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

.footer-links li {
    margin-bottom: var(--space-sm);
}

.footer-links a {
    color: var(--color-gray-400);
    transition: color var(--transition-base);
}

.footer-links a:hover {
    color: var(--color-white);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--space-xl);
    border-top: 1px solid var(--color-gray-800);
}

.footer-bottom p {
    color: var(--color-gray-500);
    font-size: var(--font-size-sm);
}

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

.form-label {
    display: block;
    margin-bottom: var(--space-sm);
    font-weight: var(--font-weight-medium);
    color: var(--color-gray-700);
}

.form-input,
.form-textarea {
    width: 100%;
    padding: var(--space-sm) var(--space-md);
    border: 1px solid var(--color-gray-300);
    border-radius: var(--radius-md);
    font-size: var(--font-size-base);
    font-family: var(--font-family-sans);
    transition: all var(--transition-base);
}

.form-input:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(30, 64, 175, 0.1);
}

.form-textarea {
    min-height: 120px;
    resize: vertical;
}

.form-error {
    display: block;
    color: #dc2626;
    font-size: var(--font-size-sm);
    margin-top: var(--space-xs);
}

/* ===================================
   ANIMATIONS
   =================================== */
.reveal {
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.6s ease-out;
}

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

/* ===================================
   RESPONSIVE DESIGN
   =================================== */
@media (max-width: 1024px) {
    .grid-cols-3 {
        grid-template-columns: repeat(2, 1fr);
    }

    .grid-cols-4 {
        grid-template-columns: repeat(2, 1fr);
    }

    .stats {
        grid-template-columns: repeat(2, 1fr);
    }

    .showcase-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .welcome-highlights {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .container {
        padding: 0 var(--space-md);
    }

    .section {
        padding: var(--space-2xl) 0;
    }

    .hero {
        padding: var(--space-2xl) 0;
        min-height: 400px;
    }

    .hero-title {
        font-size: var(--font-size-3xl);
    }

    .hero-subtitle {
        font-size: var(--font-size-base);
    }

    .nav-menu {
        display: none;
    }

    .nav-toggle {
        display: flex;
    }

    .grid-cols-2,
    .grid-cols-3,
    .grid-cols-4 {
        grid-template-columns: 1fr;
    }

    .stats {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-lg);
    }

    .showcase-grid {
        grid-template-columns: 1fr;
        gap: var(--space-md);
    }

    .showcase-item {
        height: 250px;
    }

    .footer-content {
        grid-template-columns: 1fr;
    }

    h1 {
        font-size: var(--font-size-3xl);
    }

    h2 {
        font-size: var(--font-size-2xl);
    }

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

@media (max-width: 480px) {
    .stats {
        grid-template-columns: 1fr;
    }

    .stat-number {
        font-size: var(--font-size-3xl);
    }

    .hero-cta {
        flex-direction: column;
    }

    .btn-lg {
        width: 100%;
        justify-content: center;
    }
}