/* ==========================================================================
   AL ROBBAN TRADE — Base Styles
   Variables, Reset, Typography, Utilities
   ========================================================================== */

:root {
    /* Brand Colors (Blue, White, Red) */
    --c-navy: #0a2540;
    --c-navy-dark: #051a30;
    --c-navy-light: #1e3a5f;
    --c-red: #c8102e;
    --c-red-light: #e63946;
    --c-white: #ffffff;
    --c-off-white: #f7f9fc;
    --c-gray-50: #f8f9fa;
    --c-gray-100: #e9ecef;
    --c-gray-200: #dee2e6;
    --c-gray-400: #adb5bd;
    --c-gray-600: #495057;
    --c-text: #2c3e50;
    --c-text-muted: #6c757d;

    /* Typography */
    --font-body: 'Open Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

    /* Effects */
    --shadow-sm: 0 2px 8px rgba(10, 37, 64, 0.08);
    --shadow-md: 0 6px 24px rgba(10, 37, 64, 0.12);
    --shadow-lg: 0 16px 48px rgba(10, 37, 64, 0.18);
    --transition: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-fast: 0.2s ease;

    /* Layout */
    --container: 1280px;
    --nav-h: 78px;
}

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

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-body);
    font-size: 16px;
    font-weight: 400;
    line-height: 1.65;
    color: var(--c-text);
    background: var(--c-white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

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

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

a:hover { color: var(--c-red); }

ul { list-style: none; }

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

/* ---------- Utilities ---------- */
.container {
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 24px;
}

.section { padding: 90px 0; }
.section-sm { padding: 60px 0; }

.section-title {
    font-size: clamp(1.8rem, 3.5vw, 2.6rem);
    font-weight: 800;
    color: var(--c-navy);
    margin-bottom: 12px;
    letter-spacing: -0.02em;
    line-height: 1.2;
}

.section-subtitle {
    font-size: 1.05rem;
    color: var(--c-text-muted);
    margin-bottom: 50px;
    max-width: 760px;
}

.section-divider {
    width: 60px;
    height: 4px;
    background: var(--c-red);
    margin-bottom: 24px;
    border-radius: 2px;
}

.text-center { text-align: center; }
.mx-auto { margin-left: auto; margin-right: auto; }

/* ---------- Animations ---------- */
@keyframes fadeUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.4; transform: scale(1.3); }
}

@keyframes fadeOut {
    to { opacity: 0; visibility: hidden; }
}

.fade-up { animation: fadeUp 0.8s ease both; }