/* =============================================
   GLOBAL STYLES - All Pages
   ============================================= */

/* Root Variables */
:root {
    /* Primary Colors */
    --primary-dark: #0B3D91;
    --primary-blue: #1e5ba8;
    --primary-light: #2a7dd8;
    --primary-accent: #0084ff;
    
    /* Neutral Colors */
    --white: #ffffff;
    --light-gray: #f8f9fa;
    --medium-gray: #e9ecef;
    --dark-gray: #495057;
    --text-dark: #212529;
    
    /* Functional Colors */
    --success: #28a745;
    --danger: #dc3545;
    --warning: #ffc107;
    --whatsapp: #25d366;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    --spacing-3xl: 6rem;
    
    /* Typography */
    --font-primary: 'Poppins', sans-serif;
    --font-secondary: 'Sora', sans-serif;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;
    
    /* Shadow & Effects */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.15);
    --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.2);
    --shadow-hover: 0 25px 50px rgba(11, 61, 145, 0.2);
    
    /* Border Radius */
    --radius-sm: 0.5rem;
    --radius-md: 1rem;
    --radius-lg: 1.5rem;
    --radius-full: 9999px;
    
    /* Transitions */
    --transition-fast: 0.2s ease-in-out;
    --transition-smooth: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-ease: 0.4s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--white);
    overflow-x: hidden;
    position: relative;
}

/* ========================
   VIDEO BACKGROUND CONTAINER
   ======================== */
.page-video-background {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: -1; /* BEHIND all content */
    opacity: 0.3;
}

/* ========================
   TYPOGRAPHY
   ======================== */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-secondary);
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: var(--spacing-md);
}

h1 {
    font-size: var(--font-size-5xl);
}

h2 {
    font-size: var(--font-size-4xl);
}

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(--dark-gray);
}

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

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

/* Lists */
ul, ol {
    list-style: none;
}

/* ========================
   BUTTONS - GLOBAL STYLES
   ======================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-lg);
    border: none;
    border-radius: var(--radius-md);
    font-family: var(--font-primary);
    font-size: var(--font-size-base);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-smooth);
    text-decoration: none;
    white-space: nowrap;
    position: relative;
    overflow: hidden;
    z-index: 10;
}

/* Primary Button - Blue Gradient */
.btn-primary {
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--primary-light) 100%);
    color: var(--white);
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-hover);
}

/* Secondary Button - Outlined */
.btn-secondary {
    background: transparent;
    color: var(--white);
    border: 2px solid var(--white);
}

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

/* White Button */
.btn-white {
    background: var(--white);
    color: var(--primary-dark);
    border: 2px solid var(--white);
}

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

/* WhatsApp Button */
.btn-whatsapp {
    background: var(--whatsapp);
    color: var(--white);
    border: 2px solid var(--whatsapp);
}

.btn-whatsapp:hover {
    background: transparent;
    color: var(--whatsapp);
    transform: translateY(-3px);
}

/* ========================
   STICKY NAVIGATION BAR
   ======================== */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(11, 61, 145, 0.98);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-md);
    z-index: 1000; /* HIGHEST z-index - stays on top */
    padding: var(--spacing-md) 0;
    transition: all var(--transition-smooth);
}

.navbar-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--spacing-lg);
}

.navbar-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    flex-shrink: 0;
    z-index: 1001; /* Above navbar */
    position: relative;
}

.logo-img {
    height: 40px;
    width: auto;
    object-fit: contain;
    z-index: 1001; /* Ensure logo is visible */
}

.logo-text {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--white);
    font-family: var(--font-secondary);
    z-index: 1001; /* Ensure text is visible */
}

.nav-menu {
    display: flex;
    gap: var(--spacing-2xl);
    flex: 1;
    justify-content: center;
    z-index: 1000;
}

.nav-link {
    color: var(--white);
    font-weight: 500;
    transition: color var(--transition-fast);
    position: relative;
    padding: var(--spacing-sm) 0;
    z-index: 1000;
}

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

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

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

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

.nav-cta {
    background: linear-gradient(135deg, var(--primary-accent), var(--primary-light));
    color: var(--white);
    border: none;
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-md);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-smooth);
    font-family: var(--font-primary);
    z-index: 1000;
}

.nav-cta:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
}

/* ========================
   HAMBURGER MENU
   ======================== */
.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 6px;
    z-index: 1001; /* Above everything */
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--white);
    border-radius: var(--radius-full);
    transition: all var(--transition-smooth);
}

.hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(8px, 8px);
}

.hamburger.active span:nth-child(2) {
    opacity: 0;
}

.hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
}

/* ========================
   FLOATING WHATSAPP BUTTON
   ======================== */
.whatsapp-btn {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 60px;
    height: 60px;
    background: var(--whatsapp);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 28px;
    box-shadow: var(--shadow-lg);
    transition: all var(--transition-smooth);
    z-index: 500;
    animation: float 3s ease-in-out infinite;
}

.whatsapp-btn:hover {
    transform: scale(1.1) translateY(-5px);
    box-shadow: var(--shadow-hover);
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-10px);
    }
}

/* ========================
   FOOTER
   ======================== */
.footer {
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-blue) 100%);
    color: var(--white);
    padding: var(--spacing-3xl) 0 var(--spacing-lg);
    margin-top: var(--spacing-3xl);
    position: relative;
    z-index: 50;
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-2xl);
}

.footer-section h4 {
    margin-bottom: var(--spacing-md);
    font-size: var(--font-size-lg);
}

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

.footer-section a {
    color: rgba(255, 255, 255, 0.8);
    transition: color var(--transition-fast);
}

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

.footer-section p {
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: var(--spacing-sm);
}

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

.social-icon {
    width: 45px;
    height: 45px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: var(--font-size-lg);
    transition: all var(--transition-smooth);
    border: 2px solid transparent;
    z-index: 50;
}

.social-icon:hover {
    background: var(--white);
    color: var(--primary-dark);
    transform: translateY(-3px);
    border-color: var(--primary-accent);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: var(--spacing-lg);
    text-align: center;
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.9rem;
}

/* ========================
   SECTION HEADER
   ======================== */
.section-header {
    text-align: center;
    margin-bottom: var(--spacing-3xl);
}

.section-header h2 {
    margin-bottom: var(--spacing-md);
}

.section-header p {
    font-size: var(--font-size-lg);
    max-width: 500px;
    margin: 0 auto;
}

/* ========================
   CONTAINER & SPACING
   ======================== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

section {
    padding: var(--spacing-3xl) var(--spacing-lg);
    position: relative;
    z-index: 10;
}

/* ========================
   RESPONSIVE DESIGN
   ======================== */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        left: -100%;
        top: 60px;
        flex-direction: column;
        background-color: var(--primary-dark);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: var(--shadow-lg);
        padding: var(--spacing-lg) 0;
        gap: 0;
        justify-content: flex-start;
        z-index: 999;
    }

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

    .nav-link {
        display: block;
        padding: var(--spacing-md);
        transition: background-color var(--transition-fast);
    }

    .nav-link:hover {
        background-color: rgba(255, 255, 255, 0.1);
    }

    .nav-link::after {
        display: none;
    }

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

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

    .nav-cta {
        display: none;
    }

    section {
        padding: var(--spacing-2xl) var(--spacing-lg);
    }

    .whatsapp-btn {
        bottom: 20px;
        right: 20px;
        width: 50px;
        height: 50px;
        font-size: 24px;
    }

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

    .social-icons {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    :root {
        --font-size-5xl: 2rem;
        --font-size-4xl: 1.75rem;
        --font-size-3xl: 1.5rem;
    }

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

    .logo-text {
        display: none;
    }

    h1 {
        font-size: var(--font-size-2xl);
    }

    .btn {
        padding: var(--spacing-xs) var(--spacing-md);
        font-size: 0.875rem;
    }
}

/* ========================
   ANIMATIONS & UTILITIES
   ======================== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.6s ease-out forwards;
}

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

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

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

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

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