/* ========================================
   Advanced Services and Procurement Operations SL
   Premium Design System
   Brand Identity: Navy, Cyan, Gold
   ======================================== */

/* CSS Variables - Design Tokens */
:root {
    /* Primary Colors - Extracted from Logo (Navy Blue & Cyan Wave) */
    --color-primary: #14283c;
    /* Deep Navy */
    --color-primary-dark: #0a141e;
    /* Darker Navy */
    --color-primary-light: #3ca0dc;
    /* Cyan/Sky Blue (Wave) */

    /* Secondary Colors - Extracted from Logo (Gold Flame) */
    --color-secondary: #f0b428;
    /* Gold */
    --color-secondary-dark: #cc9618;
    /* Darker Gold */
    --color-secondary-light: #f7ca5e;
    /* Lighter Gold */

    /* Neutral Colors */
    --color-white: #FFFFFF;
    --color-off-white: #F8F9FA;
    --color-light-gray: #E9ECEF;
    --color-gray: #6C757D;
    --color-dark-gray: #343A40;
    --color-charcoal: #1A1A2E;
    --color-black: #0D0D0D;

    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-display: 'Playfair Display', Georgia, serif;

    /* Font Sizes */
    --text-xs: 0.75rem;
    --text-sm: 0.875rem;
    --text-base: 1rem;
    --text-lg: 1.125rem;
    --text-xl: 1.25rem;
    --text-2xl: 1.5rem;
    --text-3xl: 1.875rem;
    --text-4xl: 2.25rem;
    --text-5xl: 3rem;
    --text-6xl: 3.75rem;

    /* Spacing */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    --space-16: 4rem;
    --space-20: 5rem;
    --space-24: 6rem;

    /* Shadows */
    --shadow-sm: 0 1px 2px 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);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 300ms ease;
    --transition-slow: 500ms ease;

    /* Border Radius */
    --radius-sm: 0.25rem;
    --radius-md: 0.5rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;
    --radius-full: 9999px;
}

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

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

body {
    font-family: var(--font-primary);
    font-weight: 400;
    line-height: 1.6;
    color: var(--color-dark-gray);
    background: linear-gradient(to bottom, rgba(60, 160, 220, 0.03) 0%, var(--color-white) 15%);
    overflow-x: hidden;
}

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

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

ul {
    list-style: none;
}

/* ========================================
   NAVIGATION
   ======================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: var(--space-4) 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    transition: all var(--transition-base);
    border-bottom: 1px solid transparent;
}

.navbar.scrolled {
    padding: var(--space-3) 0;
    background: rgba(255, 255, 255, 0.98);
    border-bottom: 1px solid var(--color-light-gray);
    box-shadow: var(--shadow-md);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--space-6);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo img {
    height: 80px;
    width: auto;
    transition: transform var(--transition-fast);
}

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

.nav-menu {
    display: flex;
    gap: var(--space-8);
}

.nav-link {
    font-size: var(--text-sm);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-dark-gray);
    padding: var(--space-2) 0;
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
    transition: width var(--transition-base);
}

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

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

/* Language Toggle */
.lang-toggle {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    margin-left: var(--space-6);
}

.lang-btn {
    background: none;
    border: none;
    font-family: var(--font-primary);
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--color-gray);
    cursor: pointer;
    padding: var(--space-1) var(--space-2);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.lang-btn:hover {
    color: var(--color-primary);
}

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

.lang-divider {
    color: var(--color-light-gray);
}

/* Mobile Navigation */
.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--space-2);
}

.nav-toggle span {
    width: 25px;
    height: 2px;
    background: var(--color-dark-gray);
    transition: all var(--transition-fast);
}

/* ========================================
   HERO SECTION
   ======================================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: url('../assets/hero-platform.png') center/cover no-repeat;
    color: var(--color-white);
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg,
            rgba(20, 40, 60, 0.9) 0%,
            rgba(60, 160, 220, 0.6) 50%,
            rgba(20, 40, 60, 0.9) 100%);
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 900px;
    padding: var(--space-8);
}

.hero-title {
    font-family: var(--font-display);
    font-size: clamp(var(--text-3xl), 5vw, var(--text-6xl));
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--space-6);
    animation: fadeInUp 1s ease-out;
}

.hero-subtitle {
    font-size: clamp(var(--text-lg), 2vw, var(--text-xl));
    font-weight: 300;
    opacity: 0.9;
    margin-bottom: var(--space-10);
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
    animation: fadeInUp 1s ease-out 0.2s both;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-4) var(--space-8);
    font-family: var(--font-primary);
    font-size: var(--text-sm);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: all var(--transition-base);
    border: 2px solid transparent;
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-secondary), var(--color-secondary-dark));
    color: var(--color-white);
    box-shadow: 0 4px 15px rgba(240, 180, 40, 0.4);
    animation: fadeInUp 1s ease-out 0.4s both;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(240, 180, 40, 0.5);
}

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

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

/* ========================================
   ABOUT SECTION
   ======================================== */
.about-section {
    padding: var(--space-24) 0;
}

.about-block {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-16);
    max-width: 1400px;
    margin: 0 auto;
    padding: var(--space-16) var(--space-6);
    align-items: center;
}

.about-block.reverse {
    direction: rtl;
}

.about-block.reverse>* {
    direction: ltr;
}

.about-content {
    padding: var(--space-8);
}

.section-tag {
    display: inline-block;
    font-size: var(--text-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--color-white);
    background: linear-gradient(135deg, var(--color-secondary) 0%, var(--color-secondary-dark) 100%);
    padding: var(--space-2) var(--space-4);
    border-radius: var(--radius-full);
    margin-bottom: var(--space-4);
    box-shadow: 0 2px 8px rgba(240, 180, 40, 0.3);
}

.about-content h2 {
    font-family: var(--font-display);
    font-size: clamp(var(--text-2xl), 3vw, var(--text-4xl));
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: var(--space-6);
    line-height: 1.3;
}

.about-content p {
    font-size: var(--text-lg);
    color: var(--color-gray);
    line-height: 1.8;
}

.about-image {
    position: relative;
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-2xl);
}

.about-image::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(20, 40, 60, 0.2), transparent);
    z-index: 1;
}

.about-image img {
    width: 100%;
    height: 400px;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

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

/* ========================================
   STATS SECTION
   ======================================== */
.stats-section {
    background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 100%);
    padding: var(--space-20) var(--space-6);
}

.stats-container {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-8);
    text-align: center;
}

.stat-item {
    color: var(--color-white);
}

.stat-number {
    display: block;
    font-family: var(--font-display);
    font-size: var(--text-5xl);
    font-weight: 700;
    margin-bottom: var(--space-2);
}

.stat-number::after {
    content: '+';
}

.stat-label {
    font-size: var(--text-sm);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    opacity: 0.9;
}

/* ========================================
   FOOTER
   ======================================== */
.footer {
    background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 100%);
    color: var(--color-white);
    padding: var(--space-8) var(--space-6) var(--space-6);
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: var(--space-12);
    padding-bottom: var(--space-12);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-logo {
    height: 90px;
    margin-bottom: var(--space-4);
}

.footer-brand p {
    color: rgba(255, 255, 255, 0.7);
    font-size: var(--text-sm);
    max-width: 300px;
}

.footer-contact h4,
.footer-links h4 {
    font-size: var(--text-sm);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--space-6);
    color: var(--color-secondary);
}

.footer-contact p {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    margin-bottom: var(--space-3);
    font-size: var(--text-sm);
    color: rgba(255, 255, 255, 0.8);
}

.footer-contact a:hover {
    color: var(--color-secondary);
}

.footer-links {
    display: flex;
    flex-direction: column;
}

.footer-links a {
    font-size: var(--text-sm);
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: var(--space-3);
    transition: all var(--transition-fast);
}

.footer-links a:hover {
    color: var(--color-secondary);
    transform: translateX(5px);
}

.footer-bottom {
    max-width: 1200px;
    margin: 0 auto;
    padding-top: var(--space-4);
    text-align: center;
    font-size: var(--text-sm);
    color: rgba(255, 255, 255, 0.5);
}

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

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

.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s ease-out;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ========================================
   RESPONSIVE DESIGN
   ======================================== */
@media (max-width: 1024px) {
    .about-block {
        grid-template-columns: 1fr;
        gap: var(--space-8);
    }

    .about-block.reverse {
        direction: ltr;
    }

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

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

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 300px;
        height: 100vh;
        background: var(--color-white);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: var(--space-6);
        transition: right var(--transition-base);
        box-shadow: var(--shadow-2xl);
    }

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

    .nav-toggle {
        display: flex;
        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);
    }

    .lang-toggle {
        margin-left: auto;
        margin-right: var(--space-4);
    }

    .hero-content {
        padding: var(--space-4);
    }

    .about-content {
        padding: var(--space-4);
    }

    .stats-container {
        grid-template-columns: 1fr;
        gap: var(--space-10);
    }

    .stat-number {
        font-size: var(--text-4xl);
    }

    .footer-container {
        grid-template-columns: 1fr;
        text-align: center;
    }

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

    .footer-brand p {
        max-width: none;
    }

    .footer-contact p {
        justify-content: center;
    }

    .footer-links {
        align-items: center;
    }
}

/* Admin Access Button */
.admin-access-btn {
    position: fixed;
    bottom: 20px;
    right: 20px;
    width: 50px;
    height: 50px;
    background-color: var(--color-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    text-decoration: none;
    z-index: 9999;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    opacity: 0.3;
    /* Subtle by default */
    border: 1px solid var(--color-gray-light);
}

.admin-access-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.2);
    opacity: 1;
}