/* OATH CLUB - Custom Styles */

:root {
    --primary-50: #f0fdf4;
    --primary-100: #dcfce7;
    --primary-200: #bbf7d0;
    --primary-300: #86efac;
    --primary-400: #4ade80;
    --primary-500: #22c55e;
    --primary-600: #16a34a;
    --primary-700: #15803d;
    --primary-800: #166534;
    --primary-900: #14532d;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Hind Siliguri', 'Noto Sans Bengali', sans-serif;
    overflow-x: hidden;
}

.font-en {
    font-family: 'Segoe UI', 'Inter', sans-serif;
}

/* Navbar */
.nav-link {
    position: relative;
    transition: color 0.3s;
}
.nav-link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-500);
    transition: width 0.3s;
}
.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}
.nav-link.active {
    color: var(--primary-600);
}

/* Hero overlay */
.hero-overlay {
    background: linear-gradient(to right, rgba(0,0,0,0.7) 0%, rgba(0,0,0,0.3) 50%, rgba(0,0,0,0.1) 100%);
}

/* Custom scrollbar */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: #f1f1f1; }
::-webkit-scrollbar-thumb { background: var(--primary-400); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--primary-600); }

.section-padding {
    padding: 5rem 0;
}

/* Fade-in animation */
[data-aos] {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}
[data-aos].aos-animate {
    opacity: 1;
    transform: translateY(0);
}

.bg-gradient-green {
    background: linear-gradient(135deg, var(--primary-700), var(--primary-500));
}

.hover-card {
    transition: all 0.3s ease;
}
.hover-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.1);
}

.gallery-overlay {
    background: linear-gradient(to top, rgba(0,0,0,0.6) 0%, transparent 50%);
}

/* Mobile menu */
#mobileMenu {
    transition: max-height 0.3s ease, opacity 0.3s ease;
    max-height: 0;
    opacity: 0;
    overflow: hidden;
}
#mobileMenu.hidden {
    max-height: 0;
    opacity: 0;
}
#mobileMenu:not(.hidden) {
    max-height: 500px;
    opacity: 1;
}

/* Form focus */
input:focus, select:focus, textarea:focus {
    border-color: var(--primary-500) !important;
    box-shadow: 0 0 0 3px rgba(34, 197, 94, 0.2) !important;
}

/* Spinner */
.spinner {
    border: 3px solid rgba(255,255,255,0.3);
    border-top-color: white;
    border-radius: 50%;
    width: 20px;
    height: 20px;
    animation: spin 0.6s linear infinite;
}
@keyframes spin {
    to { transform: rotate(360deg); }
}

.hero-slide {
    transition: opacity 0.7s ease-in-out;
}

/* ===== GLASSMORPHISM LOGIN MODAL ===== */
.admin-modal-overlay {
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
    animation: fadeIn 0.3s ease;
}
.glass-modal {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    box-shadow: 0 25px 60px rgba(0, 0, 0, 0.3);
    animation: slideUp 0.4s ease;
}
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}
@keyframes slideUp {
    from { transform: translateY(40px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

/* ===== ADMIN BUTTON PULSE ===== */
.admin-login-btn {
    position: relative;
}
.admin-login-btn::before {
    content: '';
    position: absolute;
    inset: -2px;
    border-radius: 999px;
    background: linear-gradient(45deg, var(--primary-400), var(--primary-600), var(--primary-400));
    background-size: 200% 200%;
    animation: gradientShift 3s ease infinite;
    z-index: -1;
    opacity: 0.5;
}
@keyframes gradientShift {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

/* ===== SKELETON LOADING ===== */
.skeleton {
    background: linear-gradient(90deg, #e5e7eb 25%, #f3f4f6 50%, #e5e7eb 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
    border-radius: 8px;
}
@keyframes shimmer {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

/* ===== MEMBER CARD PREMIUM ===== */
.member-card {
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}
.member-card:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
}
.member-card .member-img {
    transition: transform 0.6s ease;
}
.member-card:hover .member-img {
    transform: scale(1.1);
}

/* ===== COMMITTEE BADGE ===== */
.committee-badge {
    background: linear-gradient(135deg, var(--primary-600), var(--primary-800));
    box-shadow: 0 4px 15px rgba(22, 163, 74, 0.3);
}

/* ===== STATS COUNTER ===== */
.stat-counter {
    font-variant-numeric: tabular-nums;
}

/* ===== ADMIN SIDEBAR SCROLL ===== */
.admin-sidebar {
    scrollbar-width: thin;
    scrollbar-color: rgba(255,255,255,0.1) transparent;
}
.admin-sidebar::-webkit-scrollbar { width: 4px; }
.admin-sidebar::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.15); border-radius: 4px; }

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
    .section-padding {
        padding: 3rem 0;
    }
    .hero-overlay {
        background: linear-gradient(to top, rgba(0,0,0,0.7) 0%, rgba(0,0,0,0.2) 100%);
    }
}