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

:root {
    --bg-dark: #010409;
    --bg-card: #0d1117;
    --bg-sidebar: #161b22;
    --accent: #238636; /* Chessly-style success green */
    --accent-gold: #ffd700;
    --accent-glow: rgba(35, 134, 54, 0.3);
    --cyan: #58a6ff;
    --text-main: #e6edf3;
    --text-dim: #848d97;
    --glass-border: #30363d;
    --hover-bg: #21262d;
    --premium-gradient: linear-gradient(135deg, #238636, #2ea043);
    
    /* Dynamic Theme Defaults */
    --theme-accent: #238636;
    --theme-glow: rgba(35, 134, 54, 0.2);
}

/* ─── MONTHLY THEMES ─── */
body.theme-tiger { --theme-accent: #ff8c00; --theme-glow: rgba(255, 140, 0, 0.2); }
body.theme-ice { --theme-accent: #00f2ff; --theme-glow: rgba(0, 242, 255, 0.2); }
body.theme-electric { --theme-accent: #a200ff; --theme-glow: rgba(162, 0, 255, 0.2); }

/* --- EXAM INTENSIFIED --- */
#exam-overlay {
    backdrop-filter: blur(25px) saturate(180%);
    background: rgba(0, 0, 0, 0.92);
    z-index: 9999;
}

#exam-timer {
    font-family: 'Outfit', sans-serif;
    animation: timer-pulse 1s infinite alternate;
}

@keyframes timer-pulse {
    from { transform: scale(1); box-shadow: 0 0 10px var(--theme-accent); }
    to { transform: scale(1.1); box-shadow: 0 0 25px var(--theme-accent); }
}

#exam-load-progress {
    transition: width 0.3s ease;
}

/* --- Status Bar Glows --- */
.status-value {
    color: var(--theme-accent);
    text-shadow: 0 0 10px var(--theme-glow);
    font-weight: 700;
}
body.theme-stone { --theme-accent: #8b949e; --theme-glow: rgba(139, 148, 158, 0.2); }
body.theme-blood { --theme-accent: #f85149; --theme-glow: rgba(248, 81, 73, 0.2); }
body.theme-gold { --theme-accent: #ffd700; --theme-glow: rgba(255, 215, 0, 0.3); }

.premium-status-bar {
    max-width: 1400px;
    margin: 30px auto;
    padding: 20px 50px;
    background: linear-gradient(to right, rgba(255,255,255,0.03), rgba(255,255,255,0.01));
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    backdrop-filter: blur(20px);
    box-shadow: 0 8px 32px rgba(0,0,0,0.4), inset 0 0 15px var(--theme-glow);
    transition: all 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

.premium-status-bar.hud-pulse {
    animation: hud-success-pulse 0.8s ease-out;
}

@keyframes hud-success-pulse {
    0% { transform: scale(1); box-shadow: 0 8px 32px rgba(0,0,0,0.4), inset 0 0 15px var(--theme-glow); }
    50% { transform: scale(1.02); box-shadow: 0 8px 48px rgba(35, 134, 54, 0.4), inset 0 0 30px var(--theme-glow); border-color: var(--theme-accent); }
    100% { transform: scale(1); box-shadow: 0 8px 32px rgba(0,0,0,0.4), inset 0 0 15px var(--theme-glow); }
}

.status-group { 
    display: flex; 
    flex-direction: column;
    align-items: flex-start;
    gap: 4px; 
}

.status-label { 
    font-size: 0.6rem; 
    font-weight: 800; 
    color: var(--text-dim); 
    letter-spacing: 2.5px; 
    text-transform: uppercase;
}

.status-value { 
    font-family: 'Outfit', sans-serif;
    font-size: 1.1rem; 
    font-weight: 800; 
    color: var(--theme-accent); 
    text-transform: uppercase; 
    letter-spacing: 1px;
    text-shadow: 0 0 12px var(--theme-glow); 
}

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

body {
    background: var(--bg-dark);
    color: var(--text-main);
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    min-height: 100vh;
    overflow-x: hidden;
    line-height: 1.6;
    transition: background 0.8s ease, color 0.5s ease;
}

/* Base Ambient Background */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 10% 10%, rgba(35, 134, 54, 0.05) 0%, transparent 40%),
        radial-gradient(circle at 90% 90%, rgba(88, 166, 255, 0.05) 0%, transparent 40%);
    z-index: -1;
    pointer-events: none;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}
::-webkit-scrollbar-track {
    background: var(--bg-dark);
}
::-webkit-scrollbar-thumb {
    background: var(--glass-border);
    border-radius: 10px;
    border: 2px solid var(--bg-dark);
}
::-webkit-scrollbar-thumb:hover {
    background: var(--text-dim);
}

#app {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0; 
}

/* Header Area */
header {
    padding: 80px 20px 60px;
    text-align: center;
    border-bottom: 1px solid var(--glass-border);
    background: radial-gradient(circle at center, rgba(35, 134, 54, 0.03) 0%, transparent 70%), var(--bg-card);
}

h1 {
    font-family: 'Outfit', sans-serif;
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 800;
    letter-spacing: -1px;
    color: var(--text-main);
    margin-bottom: 8px;
}

button {
    font-family: 'Outfit', 'Inter', sans-serif;
    outline: none;
    border: none;
    background: none;
}

.subtitle {
    color: var(--text-dim);
    font-size: 1rem;
    font-weight: 400;
}

/* --- BUTTON SYSTEM --- */
.cc-btn-primary, .hero-link {
    background: var(--premium-gradient);
    color: #fff;
    border: none;
    padding: 12px 24px;
    border-radius: 8px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    box-shadow: 0 4px 15px rgba(35, 134, 54, 0.3);
    border: 1px solid rgba(255,255,255,0.1);
}

.cc-btn-primary:hover, .hero-link:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(35, 134, 54, 0.5), 0 0 10px var(--theme-glow);
    filter: brightness(1.1);
}

.cc-btn-secondary {
    background: rgba(255,255,255,0.05);
    color: var(--text-main);
    border: 1px solid var(--glass-border);
    padding: 12px 24px;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
}

.cc-btn-secondary:hover {
    background: var(--hover-bg);
    border-color: var(--text-dim);
}

/* Focus Roadmap Indicator */
.timeline {
    display: flex;
    justify-content: center;
    gap: 12px;
    padding: 30px 20px;
    background: var(--bg-dark);
    border-bottom: 1px solid var(--glass-border);
    margin-bottom: 0px;
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(10px);
}

.month-btn {
    width: 36px;
    height: 36px;
    border-radius: 8px;
    border: 1px solid var(--glass-border);
    background: transparent;
    color: var(--text-dim);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.2s ease;
    font-size: 0.85rem;
    font-weight: 600;
}

.month-btn:hover {
    background: var(--hover-bg);
    color: var(--text-main);
}

.month-btn.active {
    background: var(--accent);
    color: #fff;
    border-color: transparent;
}

/* Main Layout Grid */
.dashboard-grid {
    display: grid;
    grid-template-columns: 320px 1fr;
    gap: 0;
    border-top: 1px solid var(--glass-border);
    min-height: calc(100vh - 200px);
}

@media (max-width: 1000px) {
    .dashboard-grid {
        grid-template-columns: 1fr;
    }
}

/* Left Sidebar (Checklist & Progress) */
.checklist-card {
    background: var(--bg-sidebar);
    border-right: 1px solid var(--glass-border);
    padding: 30px;
    border-radius: 0;
    box-shadow: none;
}

/* Right Content (Curriculum) */
#curriculum-card {
    background: var(--bg-dark);
    padding: 40px;
    border-radius: 0;
    border: none;
    box-shadow: none;
}

/* Task Items (Sidebar) */
.task-list {
    margin-top: 20px;
}

.task-item {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 14px 20px;
    background: rgba(255,255,255,0.02);
    margin-bottom: 10px;
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.3s ease;
    border: 1px solid rgba(255,255,255,0.05);
}

.task-item:hover {
    background: rgba(255,255,255,0.05);
    border-color: var(--theme-accent);
    transform: translateX(5px);
}

.task-item.complete {
    background: rgba(35, 134, 54, 0.05);
    border-color: rgba(35, 134, 54, 0.2);
    opacity: 0.8;
}

.checkbox {
    width: 24px;
    height: 24px;
    border: 2px solid var(--glass-border);
    border-radius: 6px;
    transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    background: rgba(0,0,0,0.2);
}

.task-item.complete .checkbox {
    background: var(--theme-accent);
    border-color: var(--theme-accent);
    box-shadow: 0 0 10px var(--theme-glow);
}

.task-item.complete .checkbox::after {
    content: '✓';
    color: #000;
    font-weight: 900;
    font-size: 14px;
}

.task-item span {
    font-size: 0.95rem;
    color: var(--text-main);
    font-weight: 600;
    font-family: 'Inter', sans-serif;
}

.task-item.complete span {
    text-decoration: none;
    color: var(--text-dim);
    font-style: italic;
}

/* Exam Mode Toggle (New) */
#exam-trigger-container {
    margin-top: 30px;
    padding-top: 20px;
    border-top: 1px solid var(--glass-border);
}

.exam-btn {
    width: 100%;
    padding: 14px;
    background: var(--premium-gradient);
    color: #fff;
    border: none;
    border-radius: 8px;
    font-weight: 700;
    font-size: 1rem;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
    box-shadow: 0 0 20px rgba(35, 134, 54, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.exam-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 25px rgba(35, 134, 54, 0.4);
}

.exam-btn:disabled {
    background: var(--glass-border);
    color: var(--text-dim);
    cursor: not-allowed;
    box-shadow: none;
    transform: none;
}

/* ═══════════════════════════════════════════════════
   PREMIUM COURSE CARD (v4 - Chessly Inspired)
   ═══════════════════════════════════════════════════ */

.cc-wrapper { 
    background: var(--bg-card);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    padding: 0;
    overflow: hidden;
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), border-color 0.4s ease, box-shadow 0.4s ease;
    box-shadow: 0 10px 40px rgba(0,0,0,0.3);
}

.cc-wrapper:hover {
    border-color: var(--theme-accent);
    transform: translateY(-4px);
    box-shadow: 0 20px 60px rgba(0,0,0,0.5), 0 0 20px var(--theme-glow);
}

.cc-top-row {
    display: grid;
    grid-template-columns: 320px 1fr;
    gap: 0;
}

@media(max-width:900px){ .cc-top-row { grid-template-columns: 1fr; } }

/* Hero Side */
.cc-poster-col { 
    background: var(--bg-sidebar);
    padding: 30px;
    border-right: 1px solid var(--glass-border);
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.cc-poster-wrap {
    width: 100%;
    aspect-ratio: 16/10;
    border-radius: 8px;
    overflow: hidden;
    border: 1px solid var(--glass-border);
    background: #000;
}

.cc-poster-img {
    width: 100%;
    height: 100%;
    object-fit: contain; /* Better for course covers */
}

/* Details Side */
.cc-info-col {
    padding: 40px;
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.cc-title { 
    font-size: 2.2rem; 
    font-weight: 800; 
    font-family: 'Outfit', sans-serif;
    color: var(--text-main);
}

.cc-mission {
    font-size: 1.1rem;
    color: var(--accent);
    font-weight: 600;
    margin-top: -10px;
}

.cc-benefit {
    background: rgba(88, 166, 255, 0.05);
    border: 1px dashed var(--cyan);
    padding: 16px;
    border-radius: 8px;
    font-size: 0.95rem;
    color: var(--text-main);
    line-height: 1.5;
    position: relative;
    padding-left: 45px;
}

.cc-benefit::before {
    content: '✨';
    position: absolute;
    left: 15px;
    top: 15px;
    font-size: 1.2rem;
}


.cc-info-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
    margin-bottom: 24px;
}

.cc-info-item {
    background: var(--hover-bg);
    border: 1px solid var(--glass-border);
    border-radius: 8px;
    padding: 16px;
}

.cc-info-label {
    display: block;
    font-size: 0.7rem;
    color: var(--text-dim);
    text-transform: uppercase;
    font-weight: 700;
    letter-spacing: 1px;
    margin-bottom: 4px;
}

.cc-info-value {
    font-size: 0.95rem;
    font-weight: 600;
}

/* Syllabus & Modules */
.cc-syllabus {
    border-top: 1px solid var(--glass-border);
    padding-top: 24px;
}

.cc-syllabus-header {
    display: flex;
    justify-content: space-between;
    margin-bottom: 16px;
    font-weight: 700;
    color: var(--text-dim);
    text-transform: uppercase;
    font-size: 0.8rem;
    letter-spacing: 1px;
}

.cc-modules {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 10px;
}

.cc-module-row {
    background: var(--hover-bg);
    padding: 12px 16px;
    border-radius: 6px;
    display: flex;
    justify-content: space-between;
    font-size: 0.85rem;
}

/* Progress */
.cc-progress-section {
    background: var(--hover-bg);
    padding: 24px;
    border-radius: 12px;
    margin-top: 20px;
}

.cc-progress-track {
    height: 8px;
    background: var(--glass-border);
    border-radius: 10px;
    overflow: hidden;
    margin: 12px 0;
}

.cc-progress-fill {
    height: 100%;
    transition: width 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Trainer Panel */
.cc-trainer-panel {
    background: var(--bg-sidebar);
    border-top: 1px solid var(--glass-border);
    padding: 40px;
}

.cc-board-area {
    display: grid; 
    grid-template-columns: 500px 1fr;
    gap: 40px;
}

@media(max-width:1100px){ .cc-board-area { grid-template-columns: 1fr; } }

/* Score & Feedback */
.cc-score-badge {
    background: var(--bg-card);
    border: 1px solid var(--glass-border);
    padding: 8px 16px;
    border-radius: 100px;
    font-weight: 700;
    color: var(--cyan);
}

.cc-feedback {
    padding: 16px;
    border-radius: 8px;
    font-weight: 600;
    margin-top: 20px;
}

.cc-feedback-correct { background: rgba(35, 134, 54, 0.1); border: 1px solid var(--accent); color: #3fb950; }
.cc-feedback-wrong   { background: rgba(248, 81, 73, 0.1); border: 1px solid #f85149; color: #f85149; }

/* Spaced Repetition UI Enhancements */
.sr-review-badge {
    background: var(--premium-gradient);
    color: #fff;
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 700;
    margin-left: 10px;
    animation: pulse 2s infinite;
}

.sr-level-tag {
    font-size: 0.7rem;
    font-weight: 800;
    padding: 2px 6px;
    border-radius: 4px;
    background: var(--bg-card);
    border: 1px solid var(--glass-border);
    color: var(--text-dim);
    text-transform: uppercase;
}

.sr-level-mastered {
    color: var(--accent-gold);
    border-color: var(--accent-gold);
}

@keyframes pulse {
    0% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.05); opacity: 0.8; }
    100% { transform: scale(1); opacity: 1; }
}

/* Global Toasts (Positivity) */
.toast-container {
    position: fixed;
    bottom: 24px;
    right: 24px;
    z-index: 9999;
}

.toast {
    background: var(--bg-card);
    border: 1px solid var(--glass-border);
    padding: 16px 20px;
    border-radius: 12px;
    box-shadow: 0 8px 24px rgba(0,0,0,0.5);
    margin-top: 12px;
    min-width: 300px;
    animation: slideIn 0.3s ease-out;
}

@keyframes slideIn {
    from { transform: translateX(100%); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

/* Reward Overlay */
#reward-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(1, 4, 9, 0.95);
    backdrop-filter: blur(8px);
    z-index: 10000;
    justify-content: center;
    align-items: center;
}

.reward-card {
    background: var(--bg-card);
    border: 2px solid var(--theme-accent);
    padding: 60px 40px;
    border-radius: 32px;
    text-align: center;
    max-width: 600px;
    box-shadow: 0 20px 80px rgba(0,0,0,0.8), 0 0 40px var(--theme-glow);
    position: relative;
    overflow: hidden;
}

.reward-card::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, var(--theme-glow) 0%, transparent 70%);
    opacity: 0.3;
    pointer-events: none;
}

.reward-icon {
    font-size: 5rem;
    margin-bottom: 24px;
    filter: drop-shadow(0 0 20px var(--theme-accent));
}

#reward-title {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--text-main);
    letter-spacing: 2px;
    margin-bottom: 10px;
}

/* Intro Screen */
#intro-overlay {
    background: var(--bg-dark);
}

#enter-cmd-btn {
    padding: 18px 40px;
    font-size: 1.2rem;
    border-radius: 12px;
}

/* Navigation Tabs */
.header-nav {
    display: flex;
    gap: 10px;
}

.nav-tab {
    background: rgba(255,255,255,0.05);
    border: 1px solid var(--glass-border);
    color: var(--text-dim);
    padding: 10px 20px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 0.8rem;
    font-weight: 800;
    letter-spacing: 1px;
    transition: all 0.3s ease;
}

.nav-tab.active {
    background: var(--theme-accent);
    color: #000;
    box-shadow: 0 0 20px var(--theme-glow);
}

/* Rank Progression Popup */
.info-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 16px;
    height: 16px;
    background: var(--glass-border);
    border-radius: 50%;
    font-size: 10px;
    cursor: help;
    margin-left: 6px;
    vertical-align: middle;
}

.rank-popup {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    width: 300px;
    background: var(--bg-card);
    border: 1px solid var(--theme-accent);
    padding: 24px;
    border-radius: 12px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.8);
    z-index: 1000;
    margin-top: 10px;
}

.rank-popup.visible {
    display: block;
    animation: fadeIn 0.2s ease-out;
}

.rank-popup h3 {
    font-size: 1rem;
    margin-bottom: 15px;
    color: var(--accent-gold);
}

.rank-popup ul {
    list-style: none;
    padding: 0;
}

.rank-popup li {
    font-size: 0.85rem;
    padding: 10px 0;
    border-bottom: 1px solid var(--glass-border);
    color: var(--text-dim);
}

.rank-lvl {
    font-weight: 800;
    color: var(--text-main);
    margin-right: 12px;
}

.rank-fm { color: var(--cyan) !important; font-weight: 800; }
.rank-im { color: var(--accent-gold) !important; font-weight: 800; }

/* Lab Styles */
.lab-container {
    display: grid;
    grid-template-columns: 350px 1fr;
    gap: 40px;
    padding: 40px;
    background: var(--bg-card);
    border-radius: 20px;
    border: 1px solid var(--glass-border);
    animation: slideUp 0.4s ease-out;
}

.lab-upload-box {
    background: rgba(0,0,0,0.2);
    padding: 30px;
    border-radius: 16px;
    border: 2px dashed var(--glass-border);
    margin-top: 30px;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(-10px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes slideUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}