/* Tevessüm Dergisi CSS Stylesheet */

/* Design Tokens & Theme Variables */
:root {
    /* Fonts */
    --font-heading: 'Plus Jakarta Sans', 'Inter', sans-serif;
    --font-body: 'Inter', sans-serif;

    /* Light Theme Settings */
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-tertiary: #f1f5f9;
    --bg-glass: rgba(255, 255, 255, 0.7);
    --border-glass: rgba(0, 0, 0, 0.08);
    --border-color: #e2e8f0;
    
    --text-primary: #0f172a;
    --text-secondary: #334155;
    --text-muted: #64748b;
    
    --color-primary: #0e8a6e; /* Brand Green */
    --color-primary-hover: #0b6d57;
    --color-primary-light: rgba(14, 138, 110, 0.08);
    
    --color-accent: #6366f1; /* Energetic Indigo */
    --color-accent-hover: #4f46e5;
    --color-accent-light: rgba(99, 102, 241, 0.08);
    
    --color-success: #10b981;
    --color-danger: #ef4444;
    --color-warning: #f59e0b;
    
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
    --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.08);
    --shadow-primary: 0 10px 25px -5px rgba(14, 138, 110, 0.2);
    --shadow-primary-hover: 0 14px 30px -5px rgba(14, 138, 110, 0.35);
    --card-shadow: 0 10px 30px rgba(0, 0, 0, 0.02);
    
    --gradient-hero: linear-gradient(135deg, #eefdf9 0%, #e0e7ff 100%);
    --gradient-accent: linear-gradient(135deg, #0e8a6e 0%, #6366f1 100%);
    --gradient-accent-light: linear-gradient(135deg, rgba(14, 138, 110, 0.05) 0%, rgba(99, 102, 241, 0.05) 100%);
    
    /* Category Colors - Light Mode */
    --c-fikir: #6366f1;
    --c-edebiyat: #0ea5e9;
    --c-genclik: #f59e0b;
    --c-toplum: #10b981;

    --border-radius-sm: 8px;
    --border-radius-md: 16px;
    --border-radius-lg: 24px;
    --border-radius-xl: 32px;
    
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* Dark Theme Settings */
body.dark-mode {
    --bg-primary: #0a0d14;
    --bg-secondary: #0f131c;
    --bg-tertiary: #171c26;
    --bg-glass: rgba(10, 13, 20, 0.7);
    --border-glass: rgba(255, 255, 255, 0.08);
    --border-color: #1e293b;
    
    --text-primary: #f8fafc;
    --text-secondary: #cbd5e1;
    --text-muted: #94a3b8;
    
    --color-primary: #12b794; /* Brighter Brand Green for Dark Mode */
    --color-primary-hover: #0e8a6e;
    --color-primary-light: rgba(18, 183, 148, 0.15);
    
    --color-accent: #818cf8; /* Vibrant Indigo for Dark Mode */
    --color-accent-hover: #6366f1;
    --color-accent-light: rgba(129, 140, 248, 0.15);
    
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.2);
    --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.4);
    --shadow-primary: 0 10px 25px -5px rgba(18, 183, 148, 0.3);
    --shadow-primary-hover: 0 14px 30px -5px rgba(18, 183, 148, 0.5);
    --card-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
    
    --gradient-hero: linear-gradient(135deg, #041d18 0%, #0c0f1d 100%);
    --gradient-accent: linear-gradient(135deg, #12b794 0%, #818cf8 100%);
    --gradient-accent-light: linear-gradient(135deg, rgba(18, 183, 148, 0.05) 0%, rgba(129, 140, 248, 0.05) 100%);

    /* Category Colors - Dark Mode Override */
    --c-fikir: #818cf8;
    --c-edebiyat: #38bdf8;
    --c-genclik: #fbbf24;
    --c-toplum: #34d399;
}

/* CSS Reset & Defaults */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}
::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}
::-webkit-scrollbar-thumb {
    background: var(--color-primary-light);
    border: 1px solid var(--border-color);
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--color-primary);
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-body);
    background-color: var(--bg-primary);
    color: var(--text-secondary);
    line-height: 1.6;
    overflow-x: hidden;
    transition: background-color var(--transition-normal), color var(--transition-normal), border-color var(--transition-normal);
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    color: var(--text-primary);
    font-weight: 700;
    line-height: 1.25;
}

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

/* Focus states for Keyboard Accessibility */
button:focus-visible,
a:focus-visible,
input:focus-visible,
textarea:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 4px;
}

button, input, textarea {
    font-family: inherit;
    font-size: inherit;
    color: inherit;
    outline: none;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

ul {
    list-style: none;
}

/* Layout Utilities */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.text-center { text-align: center; }
.mx-auto { margin-left: auto; margin-right: auto; }
.mt-lg { margin-top: 48px; }
.mt-xl { margin-top: 64px; }

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 20px; /* Default size mapping to btn-md */
    font-size: 0.95rem;
    font-weight: 600;
    font-family: var(--font-heading);
    border-radius: var(--border-radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    border: 2px solid transparent;
    white-space: nowrap;
    text-decoration: none;
}

.btn-lg {
    padding: 14px 28px;
    font-size: 1rem;
}

.btn-md {
    padding: 10px 20px;
    font-size: 0.95rem;
}

.btn-sm {
    padding: 8px 16px;
    font-size: 0.85rem;
    border-radius: var(--border-radius-sm);
}

.btn-full {
    width: 100%;
}

.btn-primary {
    background: var(--gradient-accent);
    color: #ffffff;
    box-shadow: var(--shadow-primary);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-primary-hover);
}

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

.btn-secondary {
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
    border-color: var(--border-color);
}

.btn-secondary:hover {
    background-color: var(--border-color);
    transform: translateY(-2px);
}

.btn-outline {
    background-color: transparent;
    border-color: var(--border-color);
    color: var(--text-primary);
}

.btn-outline:hover {
    background-color: var(--bg-tertiary);
    border-color: var(--text-primary);
    transform: translateY(-2px);
}

.btn-whatsapp {
    background-color: #25D366;
    color: #ffffff;
    border-color: #25D366;
    box-shadow: 0 8px 20px rgba(37, 211, 102, 0.15);
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.btn-whatsapp:hover {
    background-color: #20ba5a;
    border-color: #20ba5a;
    color: #ffffff;
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(37, 211, 102, 0.3);
}

/* Badges */
.badge {
    display: inline-block;
    padding: 6px 12px;
    font-size: 0.8rem;
    font-weight: 700;
    border-radius: 50px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-family: var(--font-heading);
}

.badge-accent {
    background: var(--color-primary-light);
    color: var(--color-primary);
    border: 1px solid color-mix(in srgb, var(--color-primary) 20%, transparent);
}

/* Header & Navbar */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 100;
    background-color: var(--bg-glass);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border-glass);
    transition: all var(--transition-normal);
}

.navbar.scrolled {
    padding: 12px 0;
    box-shadow: var(--shadow-sm);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    transition: height var(--transition-normal);
}

.navbar.scrolled .nav-container {
    height: 64px;
}

.nav-logo {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 8px;
}

.logo-dot {
    width: 10px;
    height: 10px;
    background: var(--gradient-accent);
    border-radius: 50%;
}

.logo-sub {
    color: var(--color-primary);
    font-weight: 500;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-item {
    font-weight: 500;
    font-size: 0.95rem;
    color: var(--text-secondary);
    position: relative;
    padding: 8px 0;
}

.nav-item::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-accent);
    transition: width var(--transition-fast);
}

.nav-item:hover, .nav-item.active {
    color: var(--text-primary);
}

.nav-item.active::after, .nav-item:hover::after {
    width: 100%;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 16px;
}

/* Theme Toggle Button */
.theme-toggle-btn {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 8px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
    background-color: var(--bg-tertiary);
}

.theme-toggle-btn:hover {
    color: var(--text-primary);
    background-color: var(--border-color);
}

.icon-sun { display: none; }
body.dark-mode .icon-sun { display: block; }
body.dark-mode .icon-moon { display: none; }

/* Mobile Menu Controls */
.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    cursor: pointer;
    padding: 8px;
}

/* Mobile Drawer Nav */
.mobile-nav {
    position: fixed;
    top: 80px;
    left: 0;
    width: 100%;
    background-color: var(--bg-primary);
    border-bottom: 1px solid var(--border-color);
    box-shadow: var(--shadow-md);
    z-index: 99;
    display: none;
    opacity: 0;
    transform: translateY(-10px);
    transition: all var(--transition-normal);
}

.mobile-nav.open {
    display: block;
    opacity: 1;
    transform: translateY(0);
}

.mobile-nav-content {
    display: flex;
    flex-direction: column;
    padding: 24px;
    gap: 16px;
}

.mobile-nav-item {
    font-size: 1.1rem;
    font-weight: 600;
    padding: 8px 0;
}

.mobile-nav-divider {
    height: 1px;
    background-color: var(--border-color);
    margin: 8px 0;
}

/* Hero Section */
.hero-section {
    position: relative;
    padding: 160px 0 100px;
    background: var(--gradient-hero);
    overflow: hidden;
}

.hero-bg-shapes .shape {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    z-index: 1;
    opacity: 0.4;
}

.shape-1 {
    top: -10%;
    right: 10%;
    width: 400px;
    height: 400px;
    background: rgba(14, 138, 110, 0.2);
}

.shape-2 {
    bottom: -10%;
    left: 5%;
    width: 300px;
    height: 300px;
    background: rgba(99, 102, 241, 0.2);
}

.shape-3 {
    top: 40%;
    left: 45%;
    width: 250px;
    height: 250px;
    background: rgba(245, 158, 11, 0.15);
}

.hero-container {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 64px;
    align-items: center;
    position: relative;
    z-index: 2;
}

.hero-text-content {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    margin-top: 16px;
    margin-bottom: 24px;
}

.gradient-text {
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-description {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 40px;
    max-width: 600px;
    line-height: 1.7;
}

.hero-actions {
    display: flex;
    gap: 16px;
    margin-bottom: 48px;
}

.hero-stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    width: 100%;
    border-top: 1px solid var(--border-color);
    padding-top: 32px;
}

.stat-card {
    display: flex;
    flex-direction: column;
}

.stat-num {
    font-family: var(--font-heading);
    font-size: 2rem;
    font-weight: 800;
    color: var(--color-primary);
}

.stat-label {
    font-size: 0.85rem;
    color: var(--text-muted);
    font-weight: 500;
}

/* 3D Book Layout */
.hero-visual {
    display: flex;
    justify-content: center;
    position: relative;
}

.book-container {
    width: 280px;
    height: 380px;
    position: relative;
    perspective: 1200px;
    transition: transform var(--transition-slow);
}


.book-cover {
    width: 100%;
    height: 100%;
    border-radius: 0 8px 8px 0;
    box-shadow: 10px 10px 30px rgba(0,0,0,0.15);
    transform: rotateY(-15deg) rotateX(10deg);
    transform-style: preserve-3d;
    transition: all var(--transition-slow);
    z-index: 4;
}

.book-shadow {
    position: absolute;
    width: 110%;
    height: 20px;
    bottom: -20px;
    left: -5%;
    background: radial-gradient(ellipse at center, rgba(0,0,0,0.25) 0%, rgba(0,0,0,0) 70%);
    border-radius: 50%;
    z-index: 1;
}

.book-container:hover .book-cover {
    transform: rotateY(-5deg) rotateX(5deg) translateY(-8px);
    box-shadow: 15px 25px 40px rgba(0,0,0,0.2);
}

.visual-accent-badge {
    position: absolute;
    bottom: 20px;
    right: 20px;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-md);
    border-radius: 50%;
    width: 90px;
    height: 90px;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10;
    animation: float 4s ease-in-out infinite;
}

.accent-badge-inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.accent-badge-title {
    font-size: 0.85rem;
    font-weight: 800;
    color: var(--color-success);
    letter-spacing: 0.02em;
}

.accent-badge-desc {
    font-size: 0.65rem;
    color: var(--text-muted);
    font-weight: 600;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
}

/* Sections Styling */
section {
    padding: 100px 0;
}

.section-header {
    margin-bottom: 60px;
}

.section-subtitle {
    font-size: 0.9rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-primary);
    margin-bottom: 12px;
    display: block;
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: 16px;
    letter-spacing: -0.01em;
}

.section-desc {
    font-size: 1.1rem;
    color: var(--text-muted);
    max-width: 600px;
}

/* Article Tabs & Filtering */
.tabs-container {
    display: flex;
    justify-content: center;
    gap: 12px;
    flex-wrap: wrap;
    margin-bottom: 48px;
}

.tab-btn {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    padding: 10px 20px;
    border-radius: 50px;
    cursor: pointer;
    font-weight: 600;
    font-size: 0.9rem;
    transition: all var(--transition-fast);
}

.tab-btn:hover {
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
}

.tab-btn.active {
    background: var(--gradient-accent);
    color: #ffffff;
    border-color: transparent;
    box-shadow: var(--shadow-primary);
}

/* Articles Grid */
.articles-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.article-card {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    position: relative;
    display: flex;
    flex-direction: column;
    box-shadow: var(--card-shadow);
    transition: all var(--transition-normal);
}

.article-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-primary);
}

.card-bg-gradient {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 6px;
    background: var(--gradient-accent);
}

.card-content {
    padding: 32px;
    display: flex;
    flex-direction: column;
    height: 100%;
}

.card-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
}

.card-category {
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    padding: 4px 10px;
    border-radius: 50px;
}

.category-fikir {
    background-color: color-mix(in srgb, var(--c-fikir) 12%, transparent);
    color: var(--c-fikir);
}

.category-edebiyat {
    background-color: color-mix(in srgb, var(--c-edebiyat) 12%, transparent);
    color: var(--c-edebiyat);
}

.category-genclik {
    background-color: color-mix(in srgb, var(--c-genclik) 12%, transparent);
    color: var(--c-genclik);
}

.category-toplum {
    background-color: color-mix(in srgb, var(--c-toplum) 12%, transparent);
    color: var(--c-toplum);
}

.card-read-time {
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: 0.8rem;
    color: var(--text-muted);
    font-weight: 500;
}

.card-read-time i {
    width: 14px;
    height: 14px;
}

.card-title {
    font-size: 1.35rem;
    margin-bottom: 12px;
    line-height: 1.35;
    transition: color var(--transition-fast);
}

.article-card:hover .card-title {
    color: var(--color-primary);
}

.card-excerpt {
    font-size: 0.95rem;
    color: var(--text-muted);
    margin-bottom: 24px;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
    flex-grow: 1;
}

.card-footer {
    display: flex;
    align-items: center;
    gap: 12px;
    border-top: 1px solid var(--border-color);
    padding-top: 16px;
    margin-top: auto;
}

.author-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.85rem;
    color: #ffffff;
    font-family: var(--font-heading);
}

.avatar-bg-1 { background: linear-gradient(135deg, #f59e0b, #ef4444); }
.avatar-bg-2 { background: linear-gradient(135deg, #10b981, #0ea5e9); }
.avatar-bg-3 { background: linear-gradient(135deg, #6366f1, #a855f7); }
.avatar-bg-4 { background: linear-gradient(135deg, #ec4899, #f43f5e); }
.avatar-bg-5 { background: linear-gradient(135deg, #0ea5e9, #6366f1); }
.avatar-bg-6 { background: linear-gradient(135deg, #f59e0b, #10b981); }

.author-info {
    display: flex;
    flex-direction: column;
}

.author-name {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-primary);
}

.author-title {
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* Authors Section */
.authors-section {
    background-color: var(--bg-secondary);
}

.authors-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.author-card {
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: 32px 24px;
    text-align: center;
    box-shadow: var(--card-shadow);
    transition: all var(--transition-normal);
}

.author-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-md);
    border-color: var(--color-primary);
}

.author-large-avatar {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    margin: 0 auto 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
    font-weight: 800;
    color: #ffffff;
    font-family: var(--font-heading);
    box-shadow: var(--shadow-sm);
}

.author-card-name {
    font-size: 1.2rem;
    margin-bottom: 4px;
}

.author-card-role {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--color-primary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    display: block;
    margin-bottom: 16px;
}

.author-card-bio {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-bottom: 20px;
    line-height: 1.5;
}

.author-card-socials {
    display: flex;
    justify-content: center;
    gap: 12px;
}

.author-card-socials a {
    color: var(--text-muted);
    padding: 8px;
    background-color: var(--bg-secondary);
    border-radius: 50%;
    display: flex;
    transition: all var(--transition-fast);
}

.author-card-socials a:hover {
    color: var(--color-primary);
    background-color: var(--color-primary-light);
}

.author-card-socials a i {
    width: 16px;
    height: 16px;
}

/* Archive Section */
.archive-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.archive-card {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    display: grid;
    grid-template-columns: 0.8fr 1.2fr;
    overflow: hidden;
    box-shadow: var(--card-shadow);
    transition: all var(--transition-normal);
}

.archive-card:hover:not(.archive-card-disabled) {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: var(--color-primary);
}

.archive-img-wrapper {
    position: relative;
    overflow: hidden;
    height: 240px;
    background-color: var(--bg-tertiary);
}

.archive-img-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.archive-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(10, 13, 20, 0.6);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity var(--transition-normal);
}

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

.archive-details {
    padding: 24px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.archive-number {
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 8px;
    text-transform: uppercase;
}

.archive-title {
    font-size: 1.35rem;
    margin-bottom: 12px;
}

.archive-summary {
    font-size: 0.9rem;
    color: var(--text-muted);
    line-height: 1.5;
}

.archive-card-disabled {
    opacity: 0.75;
}

.future-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 12px;
    color: var(--text-muted);
    font-family: var(--font-heading);
    padding: 24px;
    text-align: center;
}

.future-placeholder i {
    width: 32px;
    height: 32px;
    stroke-width: 1.5px;
}

.future-placeholder span {
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.05em;
}

/* Subscription Section */
.subscription-section {
    background-color: var(--bg-secondary);
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
    margin: 16px auto 0;
    max-width: 840px;
}

.pricing-card {
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: 48px 32px;
    position: relative;
    display: flex;
    flex-direction: column;
    box-shadow: var(--card-shadow);
    transition: all var(--transition-normal);
}

.pricing-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.pricing-card.popular {
    border: 2px solid var(--color-primary);
    transform: scale(1.03);
}

.pricing-card.popular:hover {
    transform: scale(1.03) translateY(-8px);
}

.card-badge {
    position: absolute;
    top: 20px;
    right: 20px;
    background: var(--gradient-accent);
    color: #ffffff;
    font-size: 0.7rem;
    font-weight: 800;
    padding: 6px 12px;
    border-radius: 50px;
}

.pricing-header {
    margin-bottom: 32px;
}

.plan-name {
    font-size: 1.5rem;
    margin-bottom: 8px;
}

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

.plan-price {
    margin-top: 20px;
    display: flex;
    align-items: baseline;
}

.price-val {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--text-primary);
    font-family: var(--font-heading);
}

.price-period {
    font-size: 0.95rem;
    color: var(--text-muted);
    margin-left: 4px;
}

.plan-features {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-bottom: 40px;
    flex-grow: 1;
}

.plan-features li {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 0.95rem;
}

.plan-features li i {
    width: 18px;
    height: 18px;
}

.plan-features li i[data-lucide="check"] {
    color: var(--color-success);
}

.plan-features li i[data-lucide="x"] {
    color: var(--color-danger);
}

.plan-features li.disabled {
    color: var(--text-muted);
    text-decoration: line-through;
    opacity: 0.6;
}

/* Contact & Newsletter Grid */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 64px;
}

.whatsapp-panel, .form-panel {
    display: flex;
    flex-direction: column;
}

.panel-subtitle {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--color-primary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 12px;
}

.panel-title {
    font-size: 2rem;
    margin-bottom: 20px;
}

.panel-desc {
    color: var(--text-muted);
    margin-bottom: 32px;
    line-height: 1.6;
}



.form-terms {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: 12px;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-row {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group label {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-primary);
}

.contact-form input[type="text"],
.contact-form input[type="email"],
.contact-form textarea,
.modal-form input[type="text"],
.modal-form input[type="tel"],
.modal-form textarea {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    padding: 12px 16px;
    border-radius: var(--border-radius-md);
    color: var(--text-primary);
    transition: all var(--transition-fast);
}

.contact-form input:focus,
.contact-form textarea:focus,
.modal-form input:focus,
.modal-form textarea:focus {
    background-color: var(--bg-primary);
    border-color: var(--color-primary);
    box-shadow: 0 0 0 4px var(--color-primary-light);
}

.contact-form textarea {
    resize: none;
}

/* Success Messages */
.contact-success {
    display: none;
    align-items: center;
    gap: 12px;
    background-color: rgba(16, 185, 129, 0.1);
    color: var(--color-success);
    padding: 16px 20px;
    border-radius: var(--border-radius-md);
    border: 1px solid rgba(16, 185, 129, 0.2);
    margin-top: 16px;
    animation: fadeIn 0.4s ease forwards;
}

.contact-success.active {
    display: flex;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Spinner for submitting state */
.btn-spinner {
    display: none;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255,255,255,0.3);
    border-radius: 50%;
    border-top-color: #ffffff;
    animation: spin 1s ease-in-out infinite;
}

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

.submitting .btn-text {
    display: none;
}

.submitting .btn-spinner {
    display: inline-block;
}

/* Footer Section */
.footer-wrapper {
    background-color: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    padding: 80px 0 0;
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 64px;
    padding-bottom: 60px;
}

.footer-brand {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.brand-desc {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin-top: 20px;
    margin-bottom: 24px;
    line-height: 1.6;
}

.social-icons {
    display: flex;
    gap: 16px;
}

.social-icons a {
    color: var(--text-muted);
    padding: 10px;
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 50%;
    display: flex;
    transition: all var(--transition-fast);
}

.social-icons a:hover {
    color: var(--color-primary);
    background-color: var(--color-primary-light);
    border-color: var(--color-primary);
    transform: translateY(-3px);
}

.social-icons a i {
    width: 18px;
    height: 18px;
}

.footer-links-group {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.footer-col h4 {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 20px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-primary);
}

.footer-col ul {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-col ul a {
    color: var(--text-muted);
    font-size: 0.95rem;
}

.footer-col ul a:hover {
    color: var(--color-primary);
}

.footer-bottom {
    border-top: 1px solid var(--border-color);
    padding: 30px 0;
}

.bottom-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--text-muted);
    font-size: 0.85rem;
}


/* Modals & Dialogs */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(10, 13, 20, 0.6);
    backdrop-filter: blur(8px);
    z-index: 110;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-normal);
}

.modal-overlay.open {
    opacity: 1;
    pointer-events: auto;
}

.modal-card {
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    width: 100%;
    max-width: 480px;
    padding: 40px;
    box-shadow: var(--shadow-lg);
    position: relative;
    transform: translateY(20px);
    transition: transform var(--transition-normal);
}

.modal-overlay.open .modal-card {
    transform: translateY(0);
}

.modal-close {
    position: absolute;
    top: 20px;
    right: 20px;
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 8px;
    border-radius: 50%;
    display: flex;
    transition: all var(--transition-fast);
}

.modal-close:hover {
    background-color: var(--bg-secondary);
    color: var(--text-primary);
}

.modal-icon-wrapper {
    width: 56px;
    height: 56px;
    background-color: var(--color-primary-light);
    color: var(--color-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
}

.modal-icon-wrapper i {
    width: 28px;
    height: 28px;
}

.modal-title {
    font-size: 1.5rem;
    margin-bottom: 8px;
}

.modal-text {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin-bottom: 24px;
}

.modal-form {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.modal-form textarea {
    resize: none;
}

/* Modal Success State */
.modal-success-screen {
    display: none;
    flex-direction: column;
    align-items: center;
    text-align: center;
    animation: fadeIn 0.4s ease forwards;
}

.modal-success-screen.active {
    display: flex;
}

.modal-success-screen .success-icon {
    width: 64px;
    height: 64px;
    color: var(--color-success);
    margin-bottom: 24px;
}

.modal-success-screen h4 {
    font-size: 1.4rem;
    margin-bottom: 12px;
}

.modal-success-screen p {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin-bottom: 32px;
    line-height: 1.6;
}

/* Responsive Styles */
@media (max-width: 1024px) {
    .articles-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .authors-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }

    .archive-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 24px;
    }
    
    .pricing-grid {
        grid-template-columns: 1fr;
        gap: 24px;
        max-width: 500px;
        margin: 0 auto;
    }
    
    .pricing-card.popular {
        transform: scale(1);
    }
    
    .pricing-card.popular:hover {
        transform: translateY(-8px);
    }
    
    .hero-title {
        font-size: 2.8rem;
    }
}

@media (max-width: 768px) {
    section {
        padding: 60px 0;
    }
    
    .hero-section {
        padding: 120px 0 60px;
    }
    
    .hero-container {
        grid-template-columns: 1fr;
        gap: 48px;
        text-align: center;
    }
    
    .hero-text-content {
        align-items: center;
    }
    
    .hero-actions {
        justify-content: center;
    }
    
    .hero-stats-grid {
        max-width: 500px;
    }
    
    .nav-links {
        display: none;
    }
    
    .mobile-menu-toggle {
        display: flex;
    }
    
    .btn-nav-cta, .btn-main-site {
        display: none;
    }
    
    .articles-grid {
        grid-template-columns: 1fr;
        max-width: 500px;
        margin: 0 auto;
    }
    
    .archive-grid {
        grid-template-columns: 1fr;
        max-width: 500px;
        margin: 0 auto;
    }
    
    .archive-card {
        grid-template-columns: 1fr;
    }
    
    .archive-img-wrapper {
        height: 200px;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 48px;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .footer-links-group {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .bottom-content {
        flex-direction: column;
        gap: 12px;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2.2rem;
    }
    
    .hero-actions {
        flex-direction: column;
        width: 100%;
    }
    
    .hero-actions .btn {
        width: 100%;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .footer-links-group {
        grid-template-columns: 1fr;
        gap: 24px;
    }
    
    .authors-grid {
        grid-template-columns: 1fr;
        max-width: 320px;
        margin: 0 auto;
    }
}