/* ================================================
   RAYADOS DE MONTERREY - MODERN DESIGN
   Цвета: Синий #004C97, Белый #FFFFFF, Оранжевый #FF6B00
   ================================================ */

/* ============================================
   CSS VARIABLES
   ============================================ */
:root {
    /* Rayados Brand Colors */
    --rayados-blue: #004C97;
    --rayados-light-blue: #0066CC;
    --rayados-dark-blue: #003366;
    --rayados-orange: #FF6B00;
    --rayados-white: #FFFFFF;
    --rayados-gray: #F5F5F5;

    /* UI Colors */
    --bg-primary: #0A0E1A;
    --bg-secondary: #1A1F2E;
    --bg-card: #252B3D;
    --text-primary: #FFFFFF;
    --text-secondary: #B8C1D9;
    --border-color: rgba(255, 255, 255, 0.1);

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 3rem;
    --spacing-xl: 4rem;

    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-heading: 'Montserrat', 'Inter', sans-serif;

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;

    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.2);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.3);
    --shadow-glow: 0 0 40px rgba(0, 76, 151, 0.5);
}

/* ============================================
   RESET & BASE
   ============================================ */

/* Skip to content link for accessibility */
.skip-to-content {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--rayados-blue);
    color: white;
    padding: 8px 16px;
    text-decoration: none;
    z-index: 10000;
    font-weight: 600;
    border-radius: 0 0 4px 0;
}

.skip-to-content:focus {
    top: 0;
}

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

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

body {
    font-family: var(--font-primary);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

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

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

ul {
    list-style: none;
}

/* ============================================
   TYPOGRAPHY
   ============================================ */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-sm);
}

h1 {
    font-size: clamp(2.5rem, 6vw, 4rem);
}

h2 {
    font-size: clamp(2rem, 5vw, 3rem);
}

h3 {
    font-size: clamp(1.5rem, 4vw, 2rem);
}

/* ============================================
   CONTAINER & LAYOUT
   ============================================ */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

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

.section-title {
    text-align: center;
    margin-bottom: var(--spacing-lg);
    position: relative;
}

.section-title h2 {
    color: var(--rayados-blue);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    position: relative;
    display: inline-block;
}

.section-title h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, var(--rayados-blue), var(--rayados-orange));
    border-radius: 2px;
}

/* ============================================
   HEADER & NAVIGATION
   ============================================ */
.header {
    background: rgba(10, 14, 26, 0.95);
    backdrop-filter: blur(10px);
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 2px solid var(--rayados-blue);
    box-shadow: var(--shadow-md);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 1.5rem;
    font-weight: 900;
    color: var(--rayados-blue);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    transition: var(--transition-fast);
}

.logo:hover {
    transform: scale(1.05);
}

.logo img {
    height: 50px;
    width: auto;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.2));
    transition: var(--transition-fast);
}

.logo:hover img {
    filter: drop-shadow(0 4px 8px rgba(0, 76, 151, 0.4));
}

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

.nav-link {
    color: var(--text-primary);
    font-weight: 600;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: 8px;
    transition: var(--transition-fast);
    position: relative;
}

.nav-link::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background: var(--rayados-blue);
    transition: var(--transition-fast);
}

.nav-link:hover {
    color: var(--rayados-blue);
}

.nav-link:hover::before {
    width: 80%;
}

.nav-link.active {
    color: var(--rayados-blue);
    background: rgba(0, 76, 151, 0.1);
}

/* Mobile Menu Toggle */
.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: var(--spacing-xs);
}

.menu-toggle span {
    width: 25px;
    height: 3px;
    background: var(--rayados-blue);
    border-radius: 2px;
    transition: var(--transition-fast);
}

/* ============================================
   HERO SECTION
   ============================================ */
.hero {
    min-height: 75vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    background:
        linear-gradient(135deg, rgba(10, 14, 26, 0.85) 0%, rgba(0, 51, 102, 0.85) 100%),
        url('../images/fon.jpg') center/cover no-repeat;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(circle at 20% 50%, rgba(0, 76, 151, 0.4) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(255, 107, 0, 0.3) 0%, transparent 50%);
    pointer-events: none;
}

.hero-content {
    text-align: center;
    z-index: 1;
    animation: fadeInUp 1s ease;
}

.hero-title {
    font-size: clamp(3rem, 8vw, 6rem);
    font-weight: 900;
    color: var(--rayados-blue);
    text-shadow:
        -3px -3px 0 #fff,
        3px -3px 0 #fff,
        -3px 3px 0 #fff,
        3px 3px 0 #fff,
        0 6px 12px rgba(0, 0, 0, 0.8),
        0 12px 24px rgba(0, 0, 0, 0.6),
        0 0 60px rgba(0, 76, 151, 0.6),
        0 0 100px rgba(0, 76, 151, 0.4);
    margin-bottom: var(--spacing-md);
    animation: fadeInUp 1s ease;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    line-height: 1.1;
}

.hero-subtitle {
    font-size: clamp(1.2rem, 3vw, 1.8rem);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
    font-weight: 300;
    animation: fadeInUp 1.2s ease;
}

.hero-cta {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    flex-wrap: wrap;
    animation: fadeInUp 1.4s ease;
}

/* ============================================
   BUTTONS
   ============================================ */
.btn {
    display: inline-block;
    padding: 1rem 2rem;
    border-radius: 50px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    transition: var(--transition-normal);
    cursor: pointer;
    border: 2px solid transparent;
    font-size: 0.95rem;
}

.btn-primary {
    background: linear-gradient(135deg, var(--rayados-blue), var(--rayados-light-blue));
    color: var(--rayados-white);
    box-shadow: 0 4px 15px rgba(0, 76, 151, 0.4);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0, 76, 151, 0.6);
}

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

.btn-secondary:hover {
    background: var(--rayados-blue);
    color: var(--rayados-white);
    transform: translateY(-3px);
}

/* ============================================
   CARDS
   ============================================ */
.card {
    background: var(--bg-card);
    border-radius: 16px;
    padding: var(--spacing-md);
    box-shadow: var(--shadow-md);
    transition: var(--transition-normal);
    border: 1px solid var(--border-color);
    height: 100%;
}

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

.card-header {
    margin-bottom: var(--spacing-sm);
}

.card-title {
    color: var(--rayados-blue);
    font-size: 1.5rem;
    margin-bottom: var(--spacing-xs);
}

.card-body {
    color: var(--text-secondary);
    line-height: 1.8;
}

/* ============================================
   GRID LAYOUTS
   ============================================ */
.grid {
    display: grid;
    gap: var(--spacing-md);
}

.grid-2 {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.grid-3 {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.grid-4 {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
    background: var(--bg-secondary);
    border-top: 3px solid var(--rayados-blue);
    padding: var(--spacing-lg) 0 var(--spacing-md);
    margin-top: var(--spacing-xl);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
}

.footer-section h3 {
    color: var(--rayados-blue);
    margin-bottom: var(--spacing-sm);
    font-size: 1.2rem;
}

.footer-section p,
.footer-section a {
    color: var(--text-secondary);
    line-height: 2;
}

.footer-section a:hover {
    color: var(--rayados-blue);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--border-color);
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Social Links */
.social-links {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    margin-top: 1rem;
}

.social-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: rgba(0, 76, 151, 0.1);
    border: 1px solid var(--rayados-blue);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 0.9rem;
    transition: var(--transition-fast);
    text-decoration: none;
}

.social-link:hover {
    background: var(--rayados-blue);
    color: white;
    transform: translateY(-2px);
}

.source-links {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.source-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-secondary);
    font-size: 0.85rem;
    transition: var(--transition-fast);
}

.source-link:hover {
    color: var(--rayados-blue);
}


/* ============================================
   ANIMATIONS
   ============================================ */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

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

@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

.fade-in {
    animation: fadeIn 0.6s ease;
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */

/* Tablet and below */
@media (max-width: 1024px) {
    :root {
        --spacing-lg: 2.5rem;
        --spacing-xl: 3rem;
    }

    .container {
        padding: 0 var(--spacing-md);
    }
}

/* Mobile landscape and below */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background: rgba(10, 14, 26, 0.98);
        backdrop-filter: blur(10px);
        flex-direction: column;
        justify-content: flex-start;
        padding: var(--spacing-lg);
        transition: left var(--transition-normal);
        z-index: 999;
        overflow-y: auto;
    }

    .nav-menu.active {
        left: 0;
    }

    .nav-link {
        padding: var(--spacing-md);
        font-size: 1.2rem;
        border-bottom: 1px solid var(--border-color);
        width: 100%;
    }

    .menu-toggle {
        display: flex !important;
        z-index: 1000;
    }

    .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);
    }

    .hero {
        min-height: 60vh;
        padding: var(--spacing-lg) 0;
    }

    .hero-title {
        font-size: clamp(2.5rem, 10vw, 4rem);
    }

    .section {
        padding: var(--spacing-md) 0;
    }

    .grid-2,
    .grid-3,
    .grid-4 {
        grid-template-columns: 1fr;
        gap: var(--spacing-sm);
    }

    .table-container {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }

    table {
        min-width: 600px;
    }
}

/* Mobile portrait */
@media (max-width: 480px) {
    :root {
        --spacing-sm: 0.75rem;
        --spacing-md: 1rem;
        --spacing-lg: 1.5rem;
        --spacing-xl: 2rem;
    }

    .container {
        padding: 0 var(--spacing-sm);
    }

    .hero-title {
        font-size: clamp(2rem, 12vw, 3rem);
    }

    .btn {
        padding: 0.75rem 1.5rem;
        font-size: 0.9rem;
    }

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

    h1 {
        font-size: 2rem;
    }

    h2 {
        font-size: 1.75rem;
    }

    h3 {
        font-size: 1.5rem;
    }
}

/* Very small devices */
@media (max-width: 360px) {
    .hero-title {
        font-size: 1.75rem;
    }

    .nav-link {
        font-size: 1rem;
    }
}

/* ============================================
   UTILITY CLASSES
   ============================================ */
.text-center {
    text-align: center;
}

.text-blue {
    color: var(--rayados-blue);
}

.text-orange {
    color: var(--rayados-orange);
}

.mb-sm {
    margin-bottom: var(--spacing-sm);
}

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

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

.mt-sm {
    margin-top: var(--spacing-sm);
}

.mt-md {
    margin-top: var(--spacing-md);
}

.mt-lg {
    margin-top: var(--spacing-lg);
}