/* Modern Luxury & Ultra-Attractive Styles for Sai Jyothi Publication */

@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800&family=Playfair+Display:ital,wght@0,700;0,800;1,700&display=swap');

:root {
    --primary-color: #0f172a; /* Slate 900 - Deep, modern navy */
    --accent-color: #3b82f6;  /* Blue 500 - Vibrant electric blue */
    --accent-light: #dbeafe;
    --secondary-color: #64748b;
    --dark-color: #020617;
    --light-color: #f8fafc;
    --white: #ffffff;
    --glass: rgba(255, 255, 255, 0.8);
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.05);
    --shadow-md: 0 10px 25px -5px rgba(0,0,0,0.1), 0 8px 10px -6px rgba(0,0,0,0.1);
    --shadow-lg: 0 20px 50px -12px rgba(0,0,0,0.15);
    --transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    --border-radius: 20px;
}

/* Logo Styles */
.navbar-logo {
    height: 50px;
    width: auto;
    object-fit: contain;
    transition: var(--transition);
}

.footer-logo {
    height: 65px;
    width: auto;
    object-fit: contain;
    background: rgba(255, 255, 255, 0.95); /* Bright background to make logo pop */
    padding: 8px;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
    margin-right: 15px;
    transition: var(--transition);
}

.footer-logo:hover {
    transform: scale(1.05);
    background: #ffffff;
}

.admin-logo {
    height: 35px;
    width: auto;
    object-fit: contain;
}

/* Dark Mode Variables */
[data-theme="dark"] {
    --primary-color: #f8fafc;
    --accent-color: #60a5fa;
    --accent-light: #1e293b;
    --secondary-color: #94a3b8;
    --dark-color: #f1f5f9;
    --light-color: #1e293b;
    --white: #0f172a;
    --glass: rgba(15, 23, 42, 0.8);
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.3);
    --shadow-md: 0 10px 25px -5px rgba(0,0,0,0.4);
    --shadow-lg: 0 20px 50px -12px rgba(0,0,0,0.5);
}

body {
    font-family: 'Plus Jakarta Sans', sans-serif;
    color: var(--primary-color);
    background-color: var(--white);
    line-height: 1.7;
    overflow-x: hidden;
    transition: background-color 0.3s ease, color 0.3s ease;
}

[data-theme="dark"] .bg-light {
    background-color: #1e293b !important;
}

[data-theme="dark"] .card {
    background-color: #1e293b;
    border-color: rgba(255,255,255,0.05);
}

[data-theme="dark"] .text-muted {
    color: #94a3b8 !important;
}

[data-theme="dark"] .footer {
    background: #020617;
}

[data-theme="dark"] .search-box {
    background: #1e293b;
}

[data-theme="dark"] .category-pill {
    background: #1e293b;
}

[data-theme="dark"] .category-pill:hover {
    background: #334155;
}

[data-theme="dark"] .icon-box {
    background: #334155;
}

[data-theme="dark"] .navbar {
    background: rgba(15, 23, 42, 0.8);
}

[data-theme="dark"] .dropdown-menu {
    background-color: #1e293b;
    border-color: rgba(255,255,255,0.05);
}

[data-theme="dark"] .dropdown-item {
    color: #f8fafc;
}

[data-theme="dark"] .dropdown-item:hover {
    background-color: #334155;
    color: var(--accent-color);
}

[data-theme="dark"] .category-dropdown-section {
    background: #334155;
    border-color: rgba(255,255,255,0.05);
}

[data-theme="dark"] .table {
    color: #f8fafc;
}

[data-theme="dark"] .table thead {
    background-color: #334155;
}

[data-theme="dark"] .alert-warning {
    background-color: rgba(245, 158, 11, 0.1);
    color: #fbbf24;
}

[data-theme="dark"] .modal-content {
    background-color: #1e293b;
    color: #f8fafc;
}

/* Theme Toggle Button Styles */
.theme-toggle {
    width: 40px;
    height: 40px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    background: var(--light-color);
    color: var(--primary-color);
    transition: var(--transition);
    border: none;
    font-size: 1.1rem;
}

.theme-toggle:hover {
    background: var(--accent-light);
    color: var(--accent-color);
    transform: rotate(15deg);
}

[data-theme="dark"] .fa-moon {
    display: none;
}

[data-theme="dark"] .fa-sun {
    display: block;
}

.fa-sun {
    display: none;
}

body {
    font-family: 'Plus Jakarta Sans', sans-serif;
    color: var(--primary-color);
    background-color: var(--white);
    line-height: 1.7;
    overflow-x: hidden;
}

h1, h2, h3, .navbar-brand {
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-weight: 800;
    letter-spacing: -0.02em;
}

.serif {
    font-family: 'Playfair Display', serif;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: var(--light-color);
}
::-webkit-scrollbar-thumb {
    background: var(--secondary-color);
    border-radius: 10px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--primary-color);
}

/* Navbar Redesign - Floating Style */
.navbar {
    background: var(--glass);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    padding: 20px 0;
    transition: var(--transition);
    border-bottom: 1px solid rgba(0,0,0,0.05);
}

.navbar.scrolled {
    padding: 12px 0;
    box-shadow: var(--shadow-md);
    background: rgba(255, 255, 255, 0.98);
}

.navbar-brand {
    font-size: 1.6rem;
    font-weight: 800;
    color: var(--primary-color) !important;
}

.navbar-brand span {
    color: var(--accent-color);
}

.footer .footer-brand {
    color: var(--white) !important;
}

.nav-link {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--primary-color) !important;
    margin: 0 12px;
    padding: 8px 0 !important;
    opacity: 0.8;
    transition: var(--transition);
}

.nav-link:hover, .nav-link.active {
    opacity: 1;
    color: var(--accent-color) !important;
}

.category-dropdown-menu {
    border-radius: 20px;
    min-width: 720px;
    max-width: min(92vw, 820px);
    max-height: calc(100vh - 140px);
    overflow-y: auto;
}

.dropdown-menu.show.category-dropdown-menu {
    display: grid;
    grid-template-columns: repeat(3, minmax(190px, 1fr));
    gap: 12px;
}

.category-dropdown-menu > li:first-child {
    grid-column: 1 / -1;
}

.category-dropdown-section {
    background: var(--light-color);
    border: 1px solid rgba(15, 23, 42, 0.06);
    border-radius: 16px;
    padding: 8px;
}

.category-dropdown-title {
    color: var(--accent-color);
    display: block;
    font-size: 0.78rem;
    font-weight: 800;
    letter-spacing: 0.06em;
    padding: 8px 12px;
    text-transform: uppercase;
}

.category-dropdown-program {
    color: var(--secondary-color);
    display: block;
    font-size: 0.74rem;
    font-weight: 800;
    letter-spacing: 0.05em;
    padding: 10px 12px 2px;
    text-transform: uppercase;
}

.category-dropdown-link {
    color: var(--primary-color);
    font-size: 0.9rem;
    font-weight: 650;
    white-space: normal;
}

.category-dropdown-child {
    padding-left: 24px !important;
}

/* Search Box - Modern Pill */
.search-box {
    background: var(--light-color);
    border-radius: 50px;
    padding: 5px 15px;
    display: flex;
    align-items: center;
    border: 1px solid rgba(0,0,0,0.05);
    transition: var(--transition);
}

.search-box:focus-within {
    background: var(--white);
    border-color: var(--accent-color);
    box-shadow: 0 0 0 4px var(--accent-light);
}

.search-box input {
    border: none;
    background: none;
    outline: none;
    padding: 5px 10px;
    font-size: 0.9rem;
    width: 150px;
    transition: var(--transition);
}

.search-box:focus-within input {
    width: 200px;
}

/* Search Suggestions Dropdown */
.search-suggestions-dropdown {
    position: absolute;
    top: calc(100% + 15px);
    right: 0;
    width: 350px;
    background: var(--white);
    border-radius: var(--border-radius);
    overflow: hidden;
    z-index: 1000;
    border: 1px solid rgba(0,0,0,0.05);
}

.suggestion-item {
    display: flex;
    align-items: center;
    padding: 12px 15px;
    text-decoration: none;
    color: var(--primary-color);
    transition: var(--transition);
    border-bottom: 1px solid rgba(0,0,0,0.03);
}

.suggestion-item:last-child {
    border-bottom: none;
}

.suggestion-item:hover {
    background: var(--light-color);
}

.suggestion-thumb {
    width: 45px;
    height: 60px;
    object-fit: cover;
    border-radius: 8px;
    margin-right: 15px;
    box-shadow: var(--shadow-sm);
}

.suggestion-info {
    flex: 1;
}

.suggestion-title {
    font-size: 0.9rem;
    font-weight: 700;
    margin-bottom: 2px;
    display: -webkit-box;
    -webkit-line-clamp: 1;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.suggestion-price {
    font-size: 0.8rem;
    color: var(--accent-color);
    font-weight: 800;
}

.suggestion-no-results {
    padding: 20px;
    text-align: center;
    color: var(--secondary-color);
    font-size: 0.9rem;
}

/* Image Zoom Effect */
.zoom-container {
    position: relative;
    overflow: hidden;
    border-radius: var(--border-radius);
    cursor: zoom-in;
}

.zoom-container img {
    transition: transform 0.5s ease;
}

.zoom-container:hover img {
    transform: scale(1.5);
}

/* Stock Alerts in Admin */
.stock-badge-low {
    background: #fee2e2;
    color: #ef4444;
    padding: 4px 10px;
    border-radius: 8px;
    font-weight: 700;
    font-size: 0.75rem;
    display: inline-flex;
    align-items: center;
    gap: 5px;
}

.stock-badge-low::before {
    content: "";
    width: 6px;
    height: 6px;
    background: #ef4444;
    border-radius: 50%;
    animation: pulse-red 2s infinite;
}

@keyframes pulse-red {
    0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(239, 68, 68, 0.7); }
    70% { transform: scale(1); box-shadow: 0 0 0 10px rgba(239, 68, 68, 0); }
    100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(239, 68, 68, 0); }
}

/* Hero Section - Minimalist & Bold */
.hero-section {
    padding: 140px 0 100px;
    background: radial-gradient(circle at top right, var(--accent-light) 0%, var(--white) 60%);
    position: relative;
    overflow: hidden;
}

.hero-title {
    font-size: 4.5rem;
    line-height: 1.1;
    margin-bottom: 25px;
}

.text-gradient {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--accent-color) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--secondary-color);
    margin-bottom: 45px;
    max-width: 550px;
}

/* Modern Book Cards */
.book-card {
    background: var(--white);
    border: 1px solid rgba(0,0,0,0.05);
    border-radius: var(--border-radius);
    padding: 12px;
    transition: var(--transition);
    height: 100%;
}

.book-card:hover {
    transform: translateY(-12px);
    box-shadow: var(--shadow-lg);
    border-color: transparent;
}

.book-card .img-container {
    border-radius: 16px;
    overflow: hidden;
    position: relative;
    aspect-ratio: 3/4;
}

.book-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: right center;
    transition: var(--transition);
}

.book-card:hover img {
    transform: scale(1.1);
}

.book-card .card-body {
    padding: 15px 8px;
}

.book-card .category-badge {
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    color: var(--accent-color);
    margin-bottom: 8px;
    display: block;
}

.book-card .card-title {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 12px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    height: 2.8rem;
}

.book-card .price-tag {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.book-card .price {
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--primary-color);
}

.filter-group {
    border: 1px solid rgba(15, 23, 42, 0.08);
    border-radius: 16px;
    padding: 6px;
}

.filter-group summary {
    align-items: center;
    cursor: pointer;
    display: flex;
    font-size: 0.92rem;
    font-weight: 800;
    justify-content: space-between;
    list-style: none;
    padding: 10px 12px;
}

.filter-group summary::-webkit-details-marker {
    display: none;
}

.filter-group summary::after {
    color: var(--accent-color);
    content: "\f078";
    font-family: "Font Awesome 6 Free";
    font-size: 0.72rem;
    font-weight: 900;
    transition: var(--transition);
}

.filter-group[open] summary::after {
    transform: rotate(180deg);
}

.filter-program {
    color: var(--secondary-color);
    font-size: 0.72rem;
    font-weight: 800;
    letter-spacing: 0.06em;
    padding: 10px 14px 2px;
    text-transform: uppercase;
}

.filter-link.filter-link-nested {
    margin-left: 6px;
    padding: 10px 14px;
}

/* Modern Buttons */
.btn-modern {
    padding: 14px 32px;
    border-radius: 50px;
    font-weight: 700;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 10px;
    border: none;
}

.btn-modern-primary {
    background: var(--primary-color);
    color: var(--white);
}

.btn-modern-primary:hover {
    background: var(--accent-color);
    color: var(--white);
    transform: scale(1.05);
    box-shadow: 0 10px 20px rgba(59, 130, 246, 0.3);
}

.btn-modern-outline {
    background: transparent;
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
}

.btn-modern-outline:hover {
    background: var(--primary-color);
    color: var(--white);
}

.btn-whatsapp {
    background: #25d366;
    color: var(--white);
}

.btn-whatsapp:hover {
    background: #128c7e;
    color: var(--white);
    transform: scale(1.05);
    box-shadow: 0 10px 20px rgba(37, 211, 102, 0.25);
}

/* Category Pill Design */
.category-pill {
    background: var(--light-color);
    padding: 40px 20px;
    border-radius: 30px;
    text-align: center;
    transition: var(--transition);
    border: 1px solid transparent;
}

.category-pill:hover {
    background: var(--white);
    border-color: var(--accent-color);
    transform: translateY(-8px);
    box-shadow: var(--shadow-md);
}

.category-pill .icon-box {
    width: 80px;
    height: 80px;
    background: var(--white);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 2rem;
    color: var(--accent-color);
    box-shadow: var(--shadow-sm);
}

/* Feature Cards */
.feature-card {
    padding: 40px;
    border-radius: 30px;
    background: var(--white);
    border: 1px solid rgba(0,0,0,0.05);
    transition: var(--transition);
}

.feature-card:hover {
    background: var(--primary-color);
    color: var(--white);
    transform: translateY(-10px);
}

.feature-card:hover .icon-box {
    background: rgba(255,255,255,0.1);
    color: var(--white);
}

.feature-card .icon-box {
    width: 60px;
    height: 60px;
    border-radius: 15px;
    background: var(--accent-light);
    color: var(--accent-color);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 25px;
    font-size: 1.5rem;
    transition: var(--transition);
}

/* Footer - Dark & Sleek */
.footer {
    background: var(--primary-color);
    color: var(--white);
    padding: 100px 0 40px;
    border-radius: 50px 50px 0 0;
}

.footer-link {
    color: rgba(255,255,255,0.6);
    text-decoration: none;
    transition: var(--transition);
    display: block;
    margin-bottom: 12px;
}

.footer-link:hover {
    color: var(--accent-color);
    transform: translateX(5px);
}

.social-pill {
    width: 45px;
    height: 45px;
    background: rgba(255,255,255,0.05);
    border-radius: 14px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    margin-right: 10px;
    transition: var(--transition);
}

.social-pill:hover {
    background: var(--accent-color);
    transform: translateY(-5px) rotate(8deg);
}

/* Section Headings */
.section-tag {
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--accent-color);
    font-size: 0.8rem;
    margin-bottom: 15px;
    display: block;
}

.section-title {
    font-size: 3rem;
    margin-bottom: 50px;
}

/* Floating Animation */
@keyframes floating {
    0% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
    100% { transform: translateY(0px); }
}

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

.text-accent {
    color: var(--accent-color) !important;
}

.icon-box-sm {
    width: 35px;
    height: 35px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.9rem;
}

/* Scroll Top Button */
#scrollTopBtn {
    display: none;
    position: fixed;
    bottom: 100px;
    right: 30px;
    z-index: 99;
    border: none;
    outline: none;
    background-color: var(--primary-color);
    color: white;
    cursor: pointer;
    width: 50px;
    height: 50px;
    border-radius: 15px;
    font-size: 1.2rem;
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
    opacity: 0.8;
}

#scrollTopBtn:hover {
    background-color: var(--accent-color);
    transform: translateY(-5px);
    opacity: 1;
}

/* WhatsApp Floating Button */
.whatsapp-float {
    position: fixed;
    width: 60px;
    height: 60px;
    bottom: 30px;
    right: 30px;
    background-color: #25d366;
    color: #FFF;
    border-radius: 50px;
    text-align: center;
    font-size: 30px;
    box-shadow: 0 10px 25px rgba(37, 211, 102, 0.4);
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    transition: var(--transition);
}

.whatsapp-float:hover {
    background-color: #128c7e;
    color: #FFF;
    transform: scale(1.1) translateY(-5px);
    box-shadow: 0 15px 30px rgba(37, 211, 102, 0.5);
}

.whatsapp-tooltip {
    position: absolute;
    right: 75px;
    background-color: #333;
    color: #fff;
    padding: 8px 15px;
    border-radius: 10px;
    font-size: 14px;
    font-weight: 500;
    visibility: hidden;
    opacity: 0;
    transition: var(--transition);
    white-space: nowrap;
    pointer-events: none;
    box-shadow: var(--shadow-sm);
}

.whatsapp-tooltip::after {
    content: "";
    position: absolute;
    top: 50%;
    right: -5px;
    transform: translateY(-50%);
    border-width: 5px;
    border-style: solid;
    border-color: transparent transparent transparent #333;
}

.whatsapp-float:hover .whatsapp-tooltip {
    visibility: visible;
    opacity: 1;
    right: 80px;
}

@keyframes pulse-whatsapp {
    0% { box-shadow: 0 0 0 0 rgba(37, 211, 102, 0.4); }
    70% { box-shadow: 0 0 0 20px rgba(37, 211, 102, 0); }
    100% { box-shadow: 0 0 0 0 rgba(37, 211, 102, 0); }
}

.whatsapp-float {
    animation: pulse-whatsapp 2s infinite;
}

/* Responsive Adjustments */
@media (max-width: 991px) {
    .hero-title { font-size: 3.5rem; }
    .section-title { font-size: 2.5rem; }
    .category-dropdown-menu {
        max-height: none;
        min-width: 100%;
    }
    .dropdown-menu.show.category-dropdown-menu {
        display: block;
    }
}

@media (max-width: 767px) {
    .hero-title { font-size: 2.8rem; }
    .navbar-brand { font-size: 1.3rem; }
}