/*
 * Apple iOS 26 Theme for Django MarineSite
 * Modern glassmorphism design with Apple aesthetics
 */

/* ========================================
   1. BASE STYLES & TYPOGRAPHY
   ======================================== */

:root {
    /* Colors - Light Blue Professional Theme */
    --primary-blue: #2563eb;
    --secondary-blue: #1e40af;
    --accent-blue: #3b82f6;
    --text-primary: #1e3a8a;
    --text-secondary: rgba(30, 58, 138, 0.7);
    --white: #ffffff;

    /* Glass Effect Variables - White Glass on Light Background */
    --glass-bg: rgba(255, 255, 255, 0.80);
    --glass-bg-light: rgba(255, 255, 255, 0.70);
    --glass-bg-lighter: rgba(255, 255, 255, 0.60);
    --glass-bg-dark: rgba(37, 99, 235, 0.9);
    --glass-border: rgba(255, 255, 255, 0.6);
    --glass-blur: blur(20px);
    --glass-blur-strong: blur(30px);

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;

    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    --radius-full: 50px;

    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.12);
    --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.15);

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

* {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
    background: #ffffff;
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
}

/* ========================================
   2. GLASS EFFECT UTILITY CLASSES
   ======================================== */

.glass {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur) saturate(180%);
    -webkit-backdrop-filter: var(--glass-blur) saturate(180%);
    border: 1px solid var(--glass-border);
    box-shadow: var(--shadow-md);
}

.glass-light {
    background: var(--glass-bg-light);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border: 1px solid var(--glass-border);
    box-shadow: var(--shadow-sm);
}

.glass-dark {
    background: var(--glass-bg-dark);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: var(--white);
}

/* Liquid Glass Effect - White Glass on Light Background */
.liquid-glass {
    background: rgba(255, 255, 255, 0.80);
    backdrop-filter: blur(35px) saturate(180%);
    -webkit-backdrop-filter: blur(35px) saturate(180%);
    border: 1px solid rgba(255, 255, 255, 0.6);
    box-shadow:
        0 8px 32px rgba(0, 0, 0, 0.1),
        inset 0 1px 2px rgba(255, 255, 255, 0.8),
        inset 0 -1px 2px rgba(0, 0, 0, 0.05);
}

.liquid-glass-strong {
    background: rgba(255, 255, 255, 0.90);
    backdrop-filter: blur(40px) saturate(200%);
    -webkit-backdrop-filter: blur(40px) saturate(200%);
    border: 1px solid rgba(255, 255, 255, 0.8);
    box-shadow:
        0 12px 48px rgba(0, 0, 0, 0.15),
        inset 0 2px 4px rgba(255, 255, 255, 1),
        inset 0 -2px 4px rgba(0, 0, 0, 0.08);
}

.liquid-glass-dark {
    background: rgba(37, 99, 235, 0.9);
    backdrop-filter: blur(35px) saturate(180%);
    -webkit-backdrop-filter: blur(35px) saturate(180%);
    border: 1px solid rgba(59, 130, 246, 0.5);
    box-shadow:
        0 12px 48px rgba(0, 0, 0, 0.2),
        inset 0 2px 4px rgba(255, 255, 255, 0.3),
        inset 0 -2px 4px rgba(0, 0, 0, 0.15);
    color: white;
}

/* ========================================
   3. BUTTONS - iOS STYLE
   ======================================== */

.btn {
    border-radius: var(--radius-full);
    padding: 0.75rem 1.5rem;
    font-weight: 600;
    font-size: 1rem;
    transition: var(--transition-normal);
    border: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-primary {
    background: var(--glass-bg-dark);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    color: white;
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    background: rgba(40, 116, 166, 0.95);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    color: white;
}

.btn-secondary {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    color: var(--primary-blue);
    border: 1px solid var(--glass-border);
}

.btn-secondary:hover {
    background: var(--glass-bg);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-outline-primary {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 2px solid rgba(255, 255, 255, 0.5);
    color: white;
}

.btn-outline-primary:hover {
    background: var(--glass-bg);
    border-color: rgba(255, 255, 255, 0.8);
    color: var(--primary-blue);
}

/* ========================================
   4. CARDS - LIQUID GLASS EFFECT
   ======================================== */

.card {
    background: rgba(255, 255, 255, 0.80);
    backdrop-filter: blur(35px) saturate(180%);
    -webkit-backdrop-filter: blur(35px) saturate(180%);
    border: 1px solid rgba(255, 255, 255, 0.6);
    border-radius: var(--radius-xl);
    box-shadow:
        0 8px 32px rgba(0, 0, 0, 0.1),
        inset 0 1px 2px rgba(255, 255, 255, 0.8),
        inset 0 -1px 2px rgba(0, 0, 0, 0.05);
    transition: var(--transition-slow);
    overflow: hidden;
    color: var(--text-primary);
}

.card:hover {
    transform: translateY(-8px) scale(1.02);
    background: rgba(255, 255, 255, 0.90);
    backdrop-filter: blur(45px) saturate(200%);
    -webkit-backdrop-filter: blur(45px) saturate(200%);
    box-shadow:
        0 16px 64px rgba(0, 0, 0, 0.15),
        inset 0 2px 4px rgba(255, 255, 255, 1),
        inset 0 -2px 4px rgba(0, 0, 0, 0.08);
}

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

/* ========================================
   5. FORMS - iOS STYLE
   ======================================== */

.form-control,
.form-select {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    padding: 0.75rem 1rem;
    font-size: 1rem;
    transition: var(--transition-normal);
}

.form-control:focus,
.form-select:focus {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 4px rgba(26, 82, 118, 0.1);
    outline: none;
}

.form-label {
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xs);
}

/* ========================================
   6. NAVBAR - GLASS EFFECT
   ======================================== */

.ios-navbar {
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(30px) saturate(180%);
    -webkit-backdrop-filter: blur(30px) saturate(180%);
    border-bottom: 1px solid rgba(255, 255, 255, 0.3);
    box-shadow: var(--shadow-lg);
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: var(--transition-normal);
}

.ios-navbar.scrolled {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(40px) saturate(200%);
    -webkit-backdrop-filter: blur(40px) saturate(200%);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.12);
}

/* ========================================
   7. MODALS & OVERLAYS
   ======================================== */

.modal-content {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur-strong);
    -webkit-backdrop-filter: var(--glass-blur-strong);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
}

.modal-backdrop {
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
}

/* ========================================
   8. TABLES - GLASS EFFECT
   ======================================== */

.table {
    background: transparent;
}

.table thead {
    background: var(--glass-bg-light);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.table tbody tr {
    background: var(--glass-bg-lighter);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    transition: var(--transition-fast);
}

.table tbody tr:hover {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

/* ========================================
   9. BADGES & TAGS
   ======================================== */

.badge {
    background: var(--glass-bg-dark);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: var(--radius-full);
    padding: 0.375rem 0.75rem;
    font-weight: 600;
    box-shadow: var(--shadow-sm);
}

/* ========================================
   10. ALERTS & NOTIFICATIONS
   ======================================== */

.alert {
    background: var(--glass-bg);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

/* ========================================
   11. NAVIGATION TABS
   ======================================== */

.nav-tabs {
    border: none;
    background: var(--glass-bg-light);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-radius: var(--radius-lg);
    padding: 0.5rem;
}

.nav-tabs .nav-link {
    border: none;
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    transition: var(--transition-fast);
}

.nav-tabs .nav-link.active {
    background: var(--glass-bg);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    color: var(--primary-blue);
    box-shadow: var(--shadow-sm);
}

/* ========================================
   12. BREADCRUMBS
   ======================================== */

.breadcrumb {
    background: var(--glass-bg-light);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-radius: var(--radius-lg);
    padding: 1rem 1.5rem;
}

/* ========================================
   13. PAGINATION
   ======================================== */

.pagination .page-link {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    color: var(--primary-blue);
    border-radius: var(--radius-md);
    margin: 0 0.25rem;
    transition: var(--transition-fast);
}

.pagination .page-link:hover {
    background: var(--glass-bg-dark);
    color: white;
    transform: translateY(-2px);
}

.pagination .page-item.active .page-link {
    background: var(--glass-bg-dark);
    color: white;
}

/* ========================================
   14. PROGRESS BARS
   ======================================== */

.progress {
    background: var(--glass-bg-light);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-radius: var(--radius-full);
    overflow: visible;
}

.progress-bar {
    background: linear-gradient(90deg, var(--primary-blue), var(--secondary-blue));
    border-radius: var(--radius-full);
    box-shadow: var(--shadow-sm);
}

/* ========================================
   15. DROPDOWNS
   ======================================== */

.dropdown-menu {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    padding: 0.5rem;
}

.dropdown-item {
    border-radius: var(--radius-md);
    transition: var(--transition-fast);
}

.dropdown-item:hover {
    background: var(--glass-bg-light);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

/* ========================================
   16. TOOLTIPS & POPOVERS
   ======================================== */

.tooltip-inner {
    background: var(--glass-bg-dark);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border-radius: var(--radius-md);
}

/* ========================================
   17. SCROLLBAR - CUSTOM iOS STYLE
   ======================================== */

::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.3);
    border-radius: var(--radius-md);
}

::-webkit-scrollbar-thumb {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-radius: var(--radius-md);
    border: 2px solid transparent;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--glass-bg-dark);
}

/* ========================================
   18. RESPONSIVE UTILITIES
   ======================================== */

@media (max-width: 768px) {
    :root {
        --spacing-xl: 2rem;
        --spacing-lg: 1.5rem;
    }

    .btn {
        padding: 0.625rem 1.25rem;
        font-size: 0.95rem;
    }
}

/* ========================================
   19. ANIMATIONS
   ======================================== */

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeIn 0.5s ease-out;
}

/* Scroll fade-in animation */
.fade-in-on-scroll {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

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

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.slide-down {
    animation: slideDown 0.4s ease-out;
}

/* ========================================
   20. UTILITY CLASSES
   ======================================== */

.text-gradient {
    background: linear-gradient(135deg, var(--primary-blue), var(--secondary-blue));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.blur-backdrop {
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
}

.shadow-glass {
    box-shadow: 0 8px 32px rgba(31, 38, 135, 0.15);
}

.rounded-ios {
    border-radius: var(--radius-xl);
}

.transition-smooth {
    transition: var(--transition-normal);
}