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

:root {
    /* Theme: Dark (Default) */
    --bg-main: #0a0b10;
    --bg-surface: rgba(20, 22, 37, 0.6);
    --bg-surface-solid: #141625;
    --bg-surface-hover: rgba(30, 33, 54, 0.8);
    --border-color: rgba(255, 255, 255, 0.08);
    --border-color-hover: rgba(255, 255, 255, 0.15);
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --accent-primary: #7c3aed;
    --accent-primary-glow: rgba(124, 58, 237, 0.4);
    --accent-secondary: #06b6d4;
    --accent-secondary-glow: rgba(6, 182, 212, 0.3);
    --accent-accent: #f43f5e;
    
    --shadow-sm: 0 2px 8px -1px rgba(0, 0, 0, 0.2);
    --shadow-md: 0 12px 20px -4px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 20px 40px -8px rgba(0, 0, 0, 0.4);
    --shadow-accent: 0 0 25px 0 rgba(124, 58, 237, 0.25);
    
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --radius-xl: 32px;
    
    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

[data-theme="light"] {
    --bg-main: #f3f4f6;
    --bg-surface: rgba(255, 255, 255, 0.7);
    --bg-surface-solid: #ffffff;
    --bg-surface-hover: rgba(255, 255, 255, 0.9);
    --border-color: rgba(0, 0, 0, 0.08);
    --border-color-hover: rgba(0, 0, 0, 0.15);
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #94a3b8;
    --accent-primary: #6366f1;
    --accent-primary-glow: rgba(99, 102, 241, 0.2);
    --accent-secondary: #0ea5e9;
    --accent-secondary-glow: rgba(14, 165, 233, 0.2);
    --accent-accent: #e11d48;
    
    --shadow-sm: 0 2px 8px -1px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 12px 20px -4px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 20px 40px -8px rgba(0, 0, 0, 0.12);
    --shadow-accent: 0 0 25px 0 rgba(99, 102, 241, 0.15);
}

/* Base Styles */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
}

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

/* Glassmorphism utility */
.glass {
    background: var(--bg-surface);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-md);
    transition: border-color var(--transition-normal), background-color var(--transition-normal), box-shadow var(--transition-normal);
}

.glass-hover:hover {
    border-color: var(--border-color-hover);
    background: var(--bg-surface-hover);
    box-shadow: var(--shadow-lg);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    letter-spacing: -0.02em;
    line-height: 1.2;
}

.gradient-text {
    background: linear-gradient(135deg, var(--text-primary) 30%, var(--accent-primary) 70%, var(--accent-secondary) 100%);
    background-size: 200% auto;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    animation: shine 6s linear infinite;
}

@keyframes shine {
    to { background-position: 200% center; }
}

/* Header */
header {
    position: sticky;
    top: 0;
    z-index: 100;
    width: 100%;
    padding: 1.25rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border-color);
    background: rgba(10, 11, 16, 0.4);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    transition: background var(--transition-normal), border var(--transition-normal);
}

[data-theme="light"] header {
    background: rgba(243, 244, 246, 0.4);
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    text-decoration: none;
    color: var(--text-primary);
}

.logo-icon {
    width: 2.2rem;
    height: 2.2rem;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 1.2rem;
    color: #ffffff;
    box-shadow: var(--shadow-accent);
}

.logo-text {
    font-size: 1.35rem;
    font-weight: 800;
    font-family: var(--font-heading);
}

nav {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 500;
    transition: color var(--transition-fast);
}

.nav-link:hover {
    color: var(--text-primary);
}

.theme-toggle-btn {
    background: none;
    border: none;
    cursor: pointer;
    width: 2.5rem;
    height: 2.5rem;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-primary);
    background-color: var(--border-color);
    transition: background-color var(--transition-fast), transform var(--transition-fast);
}

.theme-toggle-btn:hover {
    background-color: var(--border-color-hover);
    transform: scale(1.05);
}

.theme-toggle-btn svg {
    width: 1.25rem;
    height: 1.25rem;
    fill: currentColor;
}

/* Container */
.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 2.5rem 1.5rem;
}

/* Sections */
section {
    margin-bottom: 5rem;
}

/* Hero Section */
.hero {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    min-height: 75vh;
    padding: 6rem 1rem 3rem 1rem;
    position: relative;
}

.hero-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    max-width: 900px;
    gap: 1.5rem;
}

.hero-subtitle {
    font-size: 0.95rem;
    font-weight: 700;
    letter-spacing: 0.25em;
    text-transform: uppercase;
    color: var(--accent-secondary);
}

.hero-title {
    font-size: 4rem;
    line-height: 1.15;
    font-weight: 800;
    max-width: 800px;
}

.hero-gregorian-equiv {
    font-size: 1.1rem;
    font-weight: 500;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 1.25rem;
    width: 100%;
    max-width: 600px;
}

.hero-description {
    font-size: 1.2rem;
    color: var(--text-secondary);
    max-width: 720px;
    line-height: 1.6;
}

.hero-cta {
    display: flex;
    gap: 1.25rem;
    margin-top: 1.25rem;
}

.hero .today-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    padding: 1.5rem 3rem;
    border-radius: var(--radius-md);
    margin: 1.5rem auto;
    width: 100%;
    max-width: 450px;
    box-shadow: var(--shadow-sm);
    justify-items: center;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.8rem 1.8rem;
    font-family: var(--font-body);
    font-size: 0.95rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    cursor: pointer;
    text-decoration: none;
    transition: all var(--transition-fast);
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-primary-glow));
    background-color: var(--accent-primary);
    color: #ffffff;
    border: none;
    box-shadow: var(--shadow-accent);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 30px var(--accent-primary-glow);
}

.btn-secondary {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background-color: var(--border-color);
    border-color: var(--border-color-hover);
}

/* Today display card */
.today-card {
    border-radius: var(--radius-lg);
    padding: 2.5rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.today-card::before {
    content: '';
    position: absolute;
    top: -50px;
    right: -50px;
    width: 180px;
    height: 180px;
    border-radius: 50%;
    background: radial-gradient(circle, var(--accent-primary-glow) 0%, transparent 70%);
    filter: blur(10px);
    pointer-events: none;
}

.today-label {
    font-size: 0.85rem;
    font-weight: 700;
    letter-spacing: 0.15em;
    color: var(--text-muted);
    text-transform: uppercase;
}

.today-cotsworth-date {
    font-size: 2.25rem;
    font-family: var(--font-heading);
    font-weight: 800;
    line-height: 1.2;
    color: var(--text-primary);
}

.today-gregorian-equiv {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    border-top: 1px solid var(--border-color);
    padding-top: 1.25rem;
}

.gregorian-label {
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--text-muted);
}

.gregorian-value {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-secondary);
}

.today-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
    margin-top: 0.5rem;
}

.stat-item {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 0.75rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    width: 100%;
}

[data-theme="light"] .stat-item {
    background: rgba(0, 0, 0, 0.02);
}

.stat-val {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.6rem;
    color: var(--accent-secondary);
}

.stat-title {
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--accent-primary);
    margin-bottom: 0.1rem;
}

.stat-lbl {
    font-size: 0.7rem;
    font-weight: 500;
    color: var(--text-muted);
    margin-top: 0.15rem;
}

/* Converter Section (Calculator Layout) */
.converter-card {
    display: grid;
    grid-template-columns: 1fr 60px 1.2fr;
    gap: 1.5rem;
    padding: 3rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    align-items: center;
}

.converter-inputs, .converter-outputs {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    width: 100%;
}

.converter-card-title {
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--text-primary);
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 0.5rem;
    margin-bottom: 0.5rem;
}

.inputs-grid {
    display: grid;
    grid-template-columns: 80px 1fr 110px;
    gap: 1rem;
}

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

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

.select-input, .input-text {
    background-color: var(--bg-surface-solid);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    padding: 0.65rem 0.8rem;
    font-family: var(--font-body);
    font-size: 0.95rem;
    outline: none;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.select-input:focus, .input-text:focus {
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px var(--accent-primary-glow);
}

.picker-fallback {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    padding-top: 1rem;
    border-top: 1px dashed var(--border-color);
}

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

.input-date {
    background-color: var(--bg-surface-solid);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    padding: 0.5rem 0.8rem;
    font-family: var(--font-body);
    font-size: 0.9rem;
    outline: none;
    transition: border-color var(--transition-fast);
}

.input-date:focus {
    border-color: var(--accent-primary);
}

/* Center Divider */
.converter-divider {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100%;
}

.divider-arrow {
    width: 3rem;
    height: 3rem;
    border-radius: 50%;
    background: var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    color: var(--text-secondary);
}

.divider-arrow::before {
    content: "→";
    font-size: 1.5rem;
    font-weight: 700;
}

/* Outputs */
.output-result-card {
    background: linear-gradient(135deg, rgba(124, 58, 237, 0.08) 0%, rgba(6, 182, 212, 0.08) 100%);
    border: 1px solid var(--accent-primary);
    border-radius: var(--radius-md);
    padding: 1.5rem;
    text-align: center;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    box-shadow: var(--shadow-accent);
}

.output-date-val {
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 1.6rem;
    color: var(--text-primary);
}

.output-details-val {
    font-size: 0.85rem;
    color: var(--text-secondary);
    font-weight: 500;
}

/* Mini Agenda */
.mini-agenda-box {
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 1.25rem;
    background: rgba(0, 0, 0, 0.1);
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

[data-theme="light"] .mini-agenda-box {
    background: rgba(255, 255, 255, 0.4);
}

.agenda-header-compact {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 0.4rem;
}

.mini-agenda-title {
    font-size: 0.95rem;
    font-weight: 700;
}

.mini-agenda-subtitle-greg {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.mini-agenda-list {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    max-height: 180px;
    overflow-y: auto;
}

.mini-agenda-list::-webkit-scrollbar {
    width: 4px;
}
.mini-agenda-list::-webkit-scrollbar-thumb {
    background-color: var(--border-color-hover);
    border-radius: 2px;
}

.empty-agenda {
    color: var(--text-muted);
    font-size: 0.8rem;
    text-align: center;
    padding: 1rem 0;
}

.agenda-item {
    background: var(--bg-surface-solid);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 0.6rem;
    display: flex;
    flex-direction: column;
    gap: 0.15rem;
    position: relative;
    animation: slideIn var(--transition-fast);
}

@keyframes slideIn {
    from { opacity: 0; transform: translateY(5px); }
    to { opacity: 1; transform: translateY(0); }
}

.agenda-item-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.event-tag {
    font-size: 0.6rem;
    font-weight: 700;
    text-transform: uppercase;
    padding: 0.1rem 0.3rem;
    border-radius: 3px;
}

.tag-pessoal { background: rgba(124, 58, 237, 0.15); color: var(--accent-primary); }
.tag-trabalho { background: rgba(6, 182, 212, 0.15); color: var(--accent-secondary); }
.tag-importante { background: rgba(244, 63, 94, 0.15); color: var(--accent-accent); }

.btn-delete-event {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 0.75rem;
    transition: color var(--transition-fast);
}

.btn-delete-event:hover {
    color: var(--accent-accent);
}

.event-title {
    font-weight: 600;
    font-size: 0.85rem;
    color: var(--text-primary);
}

.event-meta {
    font-size: 0.7rem;
    color: var(--text-muted);
}

/* Mini Event Form */
.mini-event-form {
    display: flex;
    gap: 0.5rem;
    border-top: 1px solid var(--border-color);
    padding-top: 0.75rem;
}

.input-text-mini {
    flex: 1;
    background-color: var(--bg-surface-solid);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    padding: 0.4rem 0.6rem;
    font-family: var(--font-body);
    font-size: 0.8rem;
    outline: none;
}

.select-input-mini {
    background-color: var(--bg-surface-solid);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    padding: 0.4rem 0.6rem;
    font-family: var(--font-body);
    font-size: 0.8rem;
    outline: none;
}

.btn-add-mini {
    background-color: var(--accent-primary);
    color: #ffffff;
    border: none;
    border-radius: var(--radius-sm);
    padding: 0 0.8rem;
    font-size: 1rem;
    font-weight: 700;
    cursor: pointer;
    transition: background-color var(--transition-fast);
}

.btn-add-mini:hover {
    background-color: var(--accent-primary-glow);
}

/* Section Header */
.section-header {
    text-align: center;
    max-width: 650px;
    margin: 0 auto 3rem auto;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.section-subtitle {
    font-size: 0.85rem;
    font-weight: 700;
    letter-spacing: 0.15em;
    color: var(--accent-primary);
    text-transform: uppercase;
}

.section-title {
    font-size: 2.25rem;
    font-weight: 800;
}

.section-desc {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.5;
    margin-top: 0.25rem;
}

/* Year Explorer (13 Month Grid) */
.year-explorer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 1.5rem;
    margin-top: 1rem;
}

.month-card {
    border-radius: var(--radius-md);
    padding: 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.month-card:hover {
    border-color: var(--accent-primary);
    transform: scale(1.02);
}

.month-card.current {
    border-color: var(--accent-primary);
    box-shadow: 0 0 15px var(--accent-primary-glow);
}

.month-card-title {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.month-card-num {
    font-size: 0.75rem;
    font-weight: 600;
    background: var(--border-color);
    padding: 0.15rem 0.4rem;
    border-radius: 4px;
    color: var(--text-muted);
}

.month-card.current .month-card-num {
    background: var(--accent-primary);
    color: #ffffff;
}

/* Mini Grid inside Month Card */
.mini-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 3px;
}

.mini-day {
    aspect-ratio: 1;
    font-size: 0.55rem;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 2px;
    background: rgba(255, 255, 255, 0.02);
    color: var(--text-muted);
    font-weight: 500;
}

[data-theme="light"] .mini-day {
    background: rgba(0, 0, 0, 0.01);
}

.month-card.current .mini-day {
    color: var(--text-secondary);
}

.mini-day.today {
    background-color: var(--accent-primary) !important;
    color: #ffffff !important;
    font-weight: 700;
}

/* Special Floating Intercalary Cards in Year Explorer */
.special-year-card {
    border: 1px dashed var(--accent-secondary);
    border-radius: var(--radius-md);
    padding: 1rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    gap: 0.5rem;
    background: linear-gradient(135deg, rgba(6, 182, 212, 0.03) 0%, transparent 100%);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.special-year-card:hover {
    border-color: var(--accent-secondary-glow);
    background: rgba(6, 182, 212, 0.05);
    transform: scale(1.02);
}

.special-year-card.current {
    border-color: var(--accent-secondary);
    box-shadow: 0 0 15px var(--accent-secondary-glow);
}

.special-year-icon {
    font-size: 1.5rem;
}

.special-year-title {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 0.95rem;
    color: var(--accent-secondary);
}

.special-year-desc {
    font-size: 0.7rem;
    color: var(--text-muted);
}

/* Educational / Marketing Section */
.marketing-layout {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    max-width: 800px;
    margin: 0 auto;
}

.marketing-info {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.marketing-features {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.feature-box {
    display: flex;
    gap: 1rem;
    padding: 1.25rem;
    border-radius: var(--radius-md);
}

.feature-icon {
    width: 2.5rem;
    height: 2.5rem;
    border-radius: 10px;
    background: rgba(124, 58, 237, 0.1);
    color: var(--accent-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.feature-text-title {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
}

.feature-text-desc {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.4;
}

/* Comparison Table */
.comparison-table-wrapper {
    margin-top: 1.5rem;
    border-radius: var(--radius-md);
    overflow: hidden;
    border: 1px solid var(--border-color);
}

.comparison-table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
    font-size: 0.85rem;
}

.comparison-table th, .comparison-table td {
    padding: 0.85rem 1.25rem;
    border-bottom: 1px solid var(--border-color);
}

.comparison-table th {
    font-family: var(--font-heading);
    font-weight: 700;
    background: rgba(255, 255, 255, 0.02);
    color: var(--text-primary);
}

[data-theme="light"] .comparison-table th {
    background: rgba(0, 0, 0, 0.02);
}

.comparison-table tr:last-child td {
    border-bottom: none;
}

.comparison-table td strong {
    color: var(--text-primary);
}

.comparison-col-good {
    color: var(--accent-secondary);
    font-weight: 600;
}
.comparison-col-bad {
    color: var(--accent-accent);
}

/* Marketing visual image container */
.marketing-visual {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    aspect-ratio: 1.1;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: #0d0e12;
}

.marketing-visual img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.marketing-visual:hover img {
    transform: scale(1.03);
}

/* Footer */
footer {
    border-top: 1px solid var(--border-color);
    padding: 3rem 1.5rem;
    text-align: center;
    color: var(--text-muted);
    font-size: 0.85rem;
    background: rgba(10, 11, 16, 0.2);
}

footer p {
    margin-bottom: 0.5rem;
}

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

footer a:hover {
    color: var(--accent-secondary);
}

/* Modals (Paywall & Auth) */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(10, 11, 16, 0.7);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: fadeIn var(--transition-fast);
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.modal-content {
    width: 100%;
    max-width: 480px;
    max-height: 90vh;
    overflow-y: auto;
    border-radius: var(--radius-lg);
    padding: 1.75rem 2rem;
    position: relative;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-color);
    animation: scaleUp var(--transition-normal);
    box-sizing: border-box;
}

.modal-content::-webkit-scrollbar {
    width: 6px;
}
.modal-content::-webkit-scrollbar-track {
    background: transparent;
}
.modal-content::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 3px;
}
[data-theme="light"] .modal-content::-webkit-scrollbar-thumb {
    background: rgba(0, 0, 0, 0.1);
}

@keyframes scaleUp {
    from { transform: scale(0.95); opacity: 0; }
    to { transform: scale(1); opacity: 1; }
}

.modal-close-btn {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--text-muted);
    cursor: pointer;
    line-height: 1;
    transition: color var(--transition-fast);
}

.modal-close-btn:hover {
    color: var(--text-primary);
}

/* Paywall Specifics */
.paywall-header {
    text-align: center;
    margin-bottom: 1.25rem;
}

.premium-badge {
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    color: #ffffff;
    font-weight: 800;
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    padding: 0.2rem 0.6rem;
    border-radius: 20px;
    display: inline-block;
    margin-bottom: 0.5rem;
    box-shadow: var(--shadow-accent);
}

.modal-title {
    font-size: 1.5rem;
    font-weight: 800;
    margin-bottom: 0.35rem;
}

.modal-subtitle {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.paywall-features {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin-bottom: 1.25rem;
}

.paywall-feature-item {
    display: flex;
    gap: 0.5rem;
    align-items: flex-start;
}

.feature-icon-bullet {
    color: var(--accent-secondary);
    font-weight: 800;
    font-size: 1.15rem;
    line-height: 1;
}

.feature-desc {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.35;
}

.plans-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.75rem;
    margin-bottom: 1.25rem;
}

.plan-card {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 0.85rem 0.5rem;
    text-align: center;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    transition: all var(--transition-fast);
    cursor: pointer;
}

[data-theme="light"] .plan-card {
    background: rgba(0, 0, 0, 0.02);
}

.plan-card:hover {
    border-color: var(--border-color-hover);
    transform: translateY(-1px);
}

.plan-card.featured {
    border-color: var(--accent-primary);
    background: linear-gradient(135deg, rgba(124, 58, 237, 0.04) 0%, rgba(6, 182, 212, 0.04) 100%);
    box-shadow: 0 0 10px rgba(124, 58, 237, 0.05);
    position: relative;
}

.plan-card.featured::after {
    content: 'POPULAR';
    position: absolute;
    top: -8px;
    font-size: 0.55rem;
    font-weight: 800;
    color: #ffffff;
    background: var(--accent-primary);
    padding: 1px 6px;
    border-radius: 10px;
    letter-spacing: 0.05em;
}

.plan-title {
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--text-secondary);
    margin-bottom: 0.25rem;
}

.plan-card.featured .plan-title {
    color: var(--text-primary);
}

.plan-price {
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 1.35rem;
    color: var(--text-primary);
}

.plan-period {
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--text-muted);
}

.plan-features-list {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
    margin-top: 0.75rem;
    width: 100%;
    text-align: left;
    padding: 0 0.5rem;
    box-sizing: border-box;
}

.plan-feature-sub-item {
    font-size: 0.7rem;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.plan-feature-sub-item.muted {
    color: var(--text-muted);
    opacity: 0.6;
    text-decoration: line-through;
}

.plan-feature-sub-item .check-icon {
    color: var(--accent-secondary);
    font-weight: 800;
}

.plan-feature-sub-item .cross-icon {
    color: var(--accent-accent);
    font-weight: 800;
}

.w-full {
    width: 100%;
}

/* Auth Modal (Login / Signup) */
.auth-tabs {
    display: flex;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 1.25rem;
    gap: 1.5rem;
}

.auth-tab {
    background: none;
    border: none;
    padding: 0.5rem 0.25rem;
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.1rem;
    color: var(--text-muted);
    cursor: pointer;
    position: relative;
    transition: color var(--transition-fast);
}

.auth-tab:hover {
    color: var(--text-primary);
}

.auth-tab.active {
    color: var(--text-primary);
}

.auth-tab.active::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--accent-primary);
}

.auth-form {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.auth-form-title {
    display: none; /* Already covered by tab buttons */
}

/* Locked Agenda Overlay */
.agenda-lock-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(10, 11, 16, 0.6);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    z-index: 10;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1.5rem;
    text-align: center;
}

[data-theme="light"] .agenda-lock-overlay {
    background: rgba(243, 244, 246, 0.6);
}

.lock-box {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    max-width: 280px;
    animation: scaleUp var(--transition-normal);
}

.lock-icon {
    font-size: 2.25rem;
    margin-bottom: 0.25rem;
    animation: float 4s ease-in-out infinite;
}

.lock-title {
    font-family: var(--font-heading);
    font-size: 1.15rem;
    font-weight: 700;
}

.lock-desc {
    font-size: 0.8rem;
    color: var(--text-secondary);
    line-height: 1.4;
}

/* User profile button / badge in nav */
#user-profile-area {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.user-badge {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.85rem;
    font-weight: 600;
    background: var(--border-color);
    padding: 0.35rem 0.75rem;
    border-radius: 20px;
    border: 1px solid var(--border-color-hover);
}

.user-avatar-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--accent-secondary);
    box-shadow: 0 0 8px var(--accent-secondary-glow);
}

.logout-link {
    font-size: 0.8rem;
    color: var(--accent-accent);
    text-decoration: none;
    cursor: pointer;
    font-weight: 500;
    transition: color var(--transition-fast);
}

.logout-link:hover {
    color: var(--text-primary);
}

/* Articles Section */
.articles-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    margin-top: 1rem;
}

.article-card {
    padding: 1.75rem;
    display: flex;
    flex-direction: column;
    gap: 0.85rem;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.article-card-title {
    font-family: var(--font-heading);
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.35;
}

.article-card-desc {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.55;
}

.article-card:hover {
    border-color: var(--accent-primary);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(99, 102, 241, 0.05);
}

/* Responsive Rules */
@media (max-width: 1024px) {
    .converter-card {
        grid-template-columns: 1fr;
        padding: 2rem;
        gap: 2rem;
    }
    
    .articles-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .converter-divider {
        padding: 1rem 0;
        height: auto;
    }
    
    .divider-arrow::before {
        content: "↓";
    }
}

@media (max-width: 768px) {
    header {
        padding: 1rem;
        flex-direction: column;
        gap: 1rem;
    }
    
    nav {
        gap: 1.25rem;
        width: 100%;
        justify-content: center;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .inputs-grid {
        grid-template-columns: 1fr;
        gap: 0.75rem;
    }
    
    .mini-event-form {
        flex-direction: column;
    }
    
    .btn-add-mini {
        padding: 0.6rem;
    }
}

@media (max-width: 480px) {
    .today-stats {
        grid-template-columns: 1fr;
    }
    
    .year-explorer-grid {
        grid-template-columns: 1fr;
    }
}