/* Optimum Digital Solutions - Glassmorphism Theme */

:root {
    --glass-bg: rgba(255, 255, 255, 0.06);
    --glass-border: rgba(255, 255, 255, 0.12);
    --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    --gradient-primary: linear-gradient(135deg, #6366f1 0%, #8b5cf6 50%, #a855f7 100%);
    --gradient-accent: linear-gradient(135deg, #f97316 0%, #ec4899 100%);
}

/* Animated mesh background */
.bg-mesh {
    background-color: #0f0b1e;
    background-image:
        radial-gradient(ellipse at 20% 50%, rgba(99, 102, 241, 0.15) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 20%, rgba(139, 92, 246, 0.12) 0%, transparent 50%),
        radial-gradient(ellipse at 40% 80%, rgba(236, 72, 153, 0.08) 0%, transparent 50%),
        radial-gradient(ellipse at 90% 90%, rgba(59, 130, 246, 0.1) 0%, transparent 40%);
    background-attachment: fixed;
}

/* Glassmorphism components */
.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    box-shadow: var(--glass-shadow);
}

.glass-nav {
    background: rgba(15, 11, 30, 0.75);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.glass-btn {
    background: rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: all 0.3s ease;
}

.glass-btn:hover {
    background: rgba(255, 255, 255, 0.14);
    border-color: rgba(255, 255, 255, 0.2);
}

.glass-input {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(8px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: white;
    transition: all 0.3s ease;
}

.glass-input:focus {
    outline: none;
    border-color: rgba(99, 102, 241, 0.5);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
    background: rgba(255, 255, 255, 0.08);
}

.glass-input::placeholder {
    color: rgba(148, 163, 184, 0.6);
}

/* Buttons */
.btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.625rem 1.5rem;
    font-weight: 600;
    color: white;
    background: var(--gradient-primary);
    border-radius: 0.75rem;
    border: none;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(99, 102, 241, 0.35);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(99, 102, 241, 0.45);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.625rem 1.5rem;
    font-weight: 600;
    color: white;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 0.75rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.14);
}

.btn-mpesa {
    background: linear-gradient(135deg, #00a651 0%, #008542 100%);
    box-shadow: 0 4px 15px rgba(0, 166, 81, 0.35);
}

.btn-mpesa:hover {
    box-shadow: 0 8px 25px rgba(0, 166, 81, 0.45);
}

/* Navigation links */
.nav-link {
    font-size: 0.875rem;
    font-weight: 500;
    color: rgba(199, 210, 254, 0.8);
    transition: color 0.3s ease;
    position: relative;
}

.nav-link:hover {
    color: white;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: width 0.3s ease;
    border-radius: 1px;
}

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

/* Hero slider */
.hero-swiper {
    border-radius: 1.5rem;
    overflow: hidden;
}

.hero-swiper .swiper-slide {
    position: relative;
    min-height: 500px;
    display: flex;
    align-items: center;
}

.hero-swiper .swiper-slide::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(15, 11, 30, 0.85) 0%, rgba(15, 11, 30, 0.4) 50%, rgba(99, 102, 241, 0.2) 100%);
    z-index: 1;
}

.hero-swiper .slide-bg {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
    transform: scale(1.05);
    transition: transform 8s ease;
}

.hero-swiper .swiper-slide-active .slide-bg {
    transform: scale(1);
}

.hero-swiper .slide-content {
    position: relative;
    z-index: 2;
}

.hero-swiper .swiper-pagination-bullet {
    width: 12px;
    height: 12px;
    background: rgba(255, 255, 255, 0.3);
    opacity: 1;
    transition: all 0.3s ease;
}

.hero-swiper .swiper-pagination-bullet-active {
    background: #6366f1;
    width: 32px;
    border-radius: 6px;
}

.hero-swiper .swiper-button-next,
.hero-swiper .swiper-button-prev {
    color: white;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(8px);
    width: 48px;
    height: 48px;
    border-radius: 50%;
    border: 1px solid rgba(255, 255, 255, 0.15);
}

.hero-swiper .swiper-button-next::after,
.hero-swiper .swiper-button-prev::after {
    font-size: 18px;
}

/* Book cards */
.book-card {
    border: 1px solid rgba(255, 255, 255, 0.06);
}

.line-clamp-2 {
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.line-clamp-3 {
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* Section headings */
.section-title {
    font-family: 'Playfair Display', Georgia, serif;
    font-size: 2.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, #ffffff 0%, #c7d2fe 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-subtitle {
    color: rgba(148, 163, 184, 0.9);
    font-size: 1.125rem;
    max-width: 600px;
}

/* Feature cards */
.feature-icon {
    width: 56px;
    height: 56px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.2) 0%, rgba(139, 92, 246, 0.2) 100%);
    border: 1px solid rgba(99, 102, 241, 0.3);
}

/* Stats counter */
.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Animations */
@keyframes slide-in {
    from { transform: translateX(100%); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

.animate-slide-in {
    animation: slide-in 0.4s ease-out;
}

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

.animate-float {
    animation: float 6s ease-in-out infinite;
}

@keyframes pulse-glow {
    0%, 100% { box-shadow: 0 0 20px rgba(99, 102, 241, 0.2); }
    50% { box-shadow: 0 0 40px rgba(99, 102, 241, 0.4); }
}

.pulse-glow {
    animation: pulse-glow 3s ease-in-out infinite;
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: rgba(15, 11, 30, 0.5);
}

::-webkit-scrollbar-thumb {
    background: rgba(99, 102, 241, 0.4);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: rgba(99, 102, 241, 0.6);
}

/* Admin sidebar */
.admin-sidebar {
    background: rgba(15, 11, 30, 0.95);
    backdrop-filter: blur(20px);
    border-right: 1px solid rgba(255, 255, 255, 0.06);
}

.admin-sidebar a.active {
    background: rgba(99, 102, 241, 0.15);
    border-left: 3px solid #6366f1;
    color: white;
}

/* Payment modal */
.payment-overlay {
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(8px);
}

/* Loading spinner */
.spinner {
    width: 40px;
    height: 40px;
    border: 3px solid rgba(255, 255, 255, 0.1);
    border-top-color: #6366f1;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Responsive */
@media (max-width: 768px) {
    .section-title {
        font-size: 1.875rem;
    }
    .hero-swiper .swiper-slide {
        min-height: 420px;
    }
}