/* C:\Users\caner\.gemini\antigravity\scratch\online-magazine\css\style.css */

/* Google Fonts Import */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Outfit:wght@300;400;500;600;700;800&display=swap');

/* CSS Variables for Premium Dark/Light theme values */
:root {
    --bg-main: #0a0f1d;
    --bg-glow-1: #1e1b4b;
    --bg-glow-2: #020617;
    --accent: #6366f1;
    --accent-hover: #4f46e5;
    --accent-glow: rgba(99, 102, 241, 0.4);
    --text-primary: #f8fafc;
    --text-muted: #94a3b8;
    --glass-bg: rgba(15, 23, 42, 0.65);
    --glass-border: rgba(255, 255, 255, 0.08);
    --glass-glow: rgba(255, 255, 255, 0.03);
    --card-bg: rgba(30, 41, 59, 0.45);
    --card-border: rgba(255, 255, 255, 0.05);
    --success: #10b981;
    --danger: #ef4444;
    --font-heading: 'Outfit', 'Inter', sans-serif;
    --font-body: 'Inter', sans-serif;
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --shadow-premium: 0 20px 40px -15px rgba(0, 0, 0, 0.5);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Reset and Global Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    background-color: var(--bg-main);
    background-image: 
        radial-gradient(at 0% 0%, var(--bg-glow-1) 0px, transparent 50%),
        radial-gradient(at 100% 100%, #111827 0px, transparent 50%),
        radial-gradient(at 50% 50%, var(--bg-glow-2) 0px, transparent 100%);
    background-attachment: fixed;
    color: var(--text-primary);
    font-family: var(--font-body);
    min-height: 100vh;
    line-height: 1.6;
    overflow-x: hidden;
}

/* Scrollbar Customization */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: var(--bg-main);
}
::-webkit-scrollbar-thumb {
    background: var(--glass-border);
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--accent);
}

/* Typographical hierarchy */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    letter-spacing: -0.02em;
}

a {
    color: inherit;
    text-decoration: none;
    transition: var(--transition);
}

/* Header & Glassmorphic Navigation */
header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--glass-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--glass-border);
    padding: 1.2rem 2rem;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.2);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo-icon {
    font-size: 1.8rem;
    background: linear-gradient(135deg, var(--accent), #a78bfa);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.logo-text {
    font-size: 1.5rem;
    font-weight: 800;
    font-family: var(--font-heading);
    background: linear-gradient(135deg, #ffffff, #c084fc);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.logo-text span {
    font-weight: 400;
    color: var(--text-muted);
}

.nav-btn {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--glass-border);
    padding: 0.6rem 1.2rem;
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-weight: 500;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
}

.nav-btn:hover {
    background: var(--accent);
    border-color: var(--accent);
    box-shadow: 0 0 15px var(--accent-glow);
    transform: translateY(-2px);
}

/* Hero Section */
.hero-section {
    max-width: 1200px;
    margin: 3rem auto 2rem auto;
    padding: 0 2rem;
    text-align: center;
}

.hero-title {
    font-size: 3rem;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, #ffffff 30%, #a5b4fc 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-subtitle {
    font-size: 1.1rem;
    color: var(--text-muted);
    max-width: 600px;
    margin: 0 auto;
}

/* Magazine Grid & Cards */
.catalog-container {
    max-width: 1200px;
    margin: 2rem auto 4rem auto;
    padding: 0 2rem;
}

.magazine-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 2.5rem;
}

.magazine-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-md);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow-premium);
    transition: var(--transition);
    position: relative;
}

.magazine-card:hover {
    transform: translateY(-8px) scale(1.02);
    border-color: var(--glass-border);
    box-shadow: 0 25px 50px -12px rgba(99, 102, 241, 0.25);
}

.magazine-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(800px circle at var(--x, 0px) var(--y, 0px), rgba(255,255,255,0.06), transparent 40%);
    z-index: 1;
    pointer-events: none;
}

.card-img-wrapper {
    position: relative;
    padding-top: 135%; /* 3:4 Magazine Ratio */
    overflow: hidden;
    background: #0f172a;
}

.magazine-cover {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.magazine-card:hover .magazine-cover {
    transform: scale(1.08);
}

.card-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to top, rgba(10, 15, 29, 0.95) 10%, rgba(10, 15, 29, 0.3) 60%, transparent 100%);
    opacity: 0;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 1.5rem;
    z-index: 2;
}

.magazine-card:hover .card-overlay {
    opacity: 1;
}

.card-overlay-title {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
    color: #ffffff;
}

.card-overlay-desc {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 1.2rem;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.card-btn {
    background: var(--accent);
    color: white;
    border: none;
    padding: 0.8rem;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    width: 100%;
    transition: var(--transition);
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3);
}

.card-btn:hover {
    background: var(--accent-hover);
    box-shadow: 0 6px 20px rgba(99, 102, 241, 0.5);
    transform: translateY(-1px);
}

.card-info {
    padding: 1.2rem;
    background: rgba(15, 23, 42, 0.3);
    border-top: 1px solid var(--card-border);
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
    z-index: 2;
}

.card-title {
    font-size: 1.1rem;
    font-weight: 600;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.card-date {
    font-size: 0.8rem;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 0.3rem;
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 5rem 2rem;
    background: var(--glass-bg);
    border: 1px dashed var(--glass-border);
    border-radius: var(--radius-md);
    max-width: 600px;
    margin: 4rem auto;
    box-shadow: var(--shadow-premium);
}

.empty-icon {
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
    opacity: 0.6;
}

.empty-title {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.empty-desc {
    color: var(--text-muted);
    margin-bottom: 1.5rem;
}

/* Login Page */
.login-wrapper {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: calc(100vh - 80px);
    padding: 2rem;
}

.login-card {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    width: 100%;
    max-width: 420px;
    padding: 2.5rem;
    box-shadow: var(--shadow-premium);
    position: relative;
    overflow: hidden;
}

.login-card::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(99, 102, 241, 0.15) 0%, transparent 60%);
    pointer-events: none;
}

.login-header {
    text-align: center;
    margin-bottom: 2rem;
}

.login-logo {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
}

.login-title {
    font-size: 1.8rem;
    margin-bottom: 0.5rem;
    background: linear-gradient(135deg, #ffffff, #a5b4fc);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.login-subtitle {
    font-size: 0.9rem;
    color: var(--text-muted);
}

.form-group {
    margin-bottom: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-label {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.form-control {
    background: rgba(15, 23, 42, 0.5);
    border: 1px solid var(--glass-border);
    color: var(--text-primary);
    padding: 0.8rem 1rem;
    border-radius: var(--radius-sm);
    font-family: var(--font-body);
    font-size: 1rem;
    transition: var(--transition);
    width: 100%;
}

.form-control:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 10px rgba(99, 102, 241, 0.2);
    background: rgba(15, 23, 42, 0.7);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.alert {
    padding: 0.8rem 1rem;
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    border: 1px solid;
}

.alert-danger {
    background: rgba(239, 68, 68, 0.1);
    border-color: rgba(239, 68, 68, 0.2);
    color: #fca5a5;
}

.alert-success {
    background: rgba(16, 185, 129, 0.1);
    border-color: rgba(16, 185, 129, 0.2);
    color: #a7f3d0;
}

.btn-primary {
    background: var(--accent);
    color: white;
    border: none;
    padding: 0.9rem;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition);
    width: 100%;
    margin-top: 0.5rem;
}

.btn-primary:hover {
    background: var(--accent-hover);
    box-shadow: 0 5px 15px var(--accent-glow);
}

/* Admin Dashboard */
.admin-container {
    max-width: 1200px;
    margin: 3rem auto 4rem auto;
    padding: 0 2rem;
}

.admin-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 3rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--glass-border);
}

.admin-title-group h1 {
    font-size: 2.2rem;
    background: linear-gradient(135deg, #ffffff, #a5b4fc);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.admin-title-group p {
    color: var(--text-muted);
    font-size: 0.95rem;
}

.btn-danger {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.2);
    color: #fca5a5;
    padding: 0.6rem 1.2rem;
    border-radius: var(--radius-sm);
    font-weight: 500;
    font-size: 0.9rem;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: var(--transition);
}

.btn-danger:hover {
    background: var(--danger);
    border-color: var(--danger);
    color: white;
    box-shadow: 0 0 15px rgba(239, 68, 68, 0.3);
}

.admin-grid {
    display: grid;
    grid-template-columns: 4fr 5fr;
    gap: 3rem;
    align-items: start;
}

@media (max-width: 968px) {
    .admin-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
}

.admin-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    padding: 2rem;
    box-shadow: var(--shadow-premium);
}

.admin-card-title {
    font-size: 1.4rem;
    margin-bottom: 1.5rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--glass-border);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* File Input Custom Styling */
.file-upload-wrapper {
    position: relative;
    width: 100%;
}

.file-upload-input {
    opacity: 0;
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    cursor: pointer;
    z-index: 2;
}

.file-upload-label {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 1.5rem;
    background: rgba(15, 23, 42, 0.3);
    border: 2px dashed var(--glass-border);
    border-radius: var(--radius-sm);
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
}

.file-upload-wrapper:hover .file-upload-label {
    border-color: var(--accent);
    background: rgba(99, 102, 241, 0.05);
}

.file-upload-icon {
    font-size: 1.8rem;
    color: var(--accent);
    margin-bottom: 0.5rem;
}

.file-upload-text {
    font-size: 0.9rem;
    font-weight: 500;
}

.file-upload-hint {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: 0.2rem;
}

/* Magazines Table / List in Admin */
.admin-list {
    display: flex;
    flex-direction: column;
    gap: 1.2rem;
    max-height: 600px;
    overflow-y: auto;
    padding-right: 0.5rem;
}

.admin-item {
    background: rgba(15, 23, 42, 0.35);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
    padding: 0.8rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    transition: var(--transition);
}

.admin-item:hover {
    background: rgba(15, 23, 42, 0.6);
    border-color: rgba(255, 255, 255, 0.12);
}

.admin-item-info {
    display: flex;
    align-items: center;
    gap: 1rem;
    overflow: hidden;
}

.admin-thumbnail {
    width: 50px;
    height: 65px;
    border-radius: 4px;
    object-fit: cover;
    background: #0f172a;
    border: 1px solid var(--glass-border);
}

.admin-item-details {
    overflow: hidden;
}

.admin-item-title {
    font-size: 1rem;
    font-weight: 600;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    margin-bottom: 0.2rem;
}

.admin-item-date {
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* Fullscreen Cinematic PDF Reader */
.reader-body {
    background: #060813;
    overflow: hidden;
    height: 100vh;
}

.reader-container {
    display: flex;
    flex-direction: column;
    height: 100vh;
    width: 100vw;
}

.reader-toolbar {
    background: rgba(6, 8, 19, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 10;
}

.reader-title-group {
    display: flex;
    flex-direction: column;
}

.reader-title {
    font-size: 1.2rem;
    font-weight: 700;
}

.reader-subtitle {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.btn-back {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--glass-border);
    color: var(--text-primary);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-sm);
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 500;
    font-size: 0.85rem;
}

.btn-back:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateX(-3px);
}

.iframe-wrapper {
    flex: 1;
    width: 100%;
    height: 100%;
    background: #0f111a;
    border: none;
    position: relative;
}

.pdf-iframe {
    width: 100%;
    height: 100%;
    border: none;
}

/* Footer Section */
footer {
    border-top: 1px solid var(--glass-border);
    background: rgba(6, 8, 19, 0.5);
    padding: 2.5rem 2rem;
    text-align: center;
    margin-top: auto;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.footer-copy {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.footer-brand {
    font-family: var(--font-heading);
    font-size: 1.1rem;
    font-weight: 700;
}

/* Dynamic JS file name visual feedback */
.file-upload-input:change + .file-upload-label .file-upload-text {
    color: var(--success);
}