/* ==========================================================================
   CODING COUNCIL - DSA SPRINT JMI DESIGN SYSTEM (VANILLA CSS)
   ========================================================================== */

/* --- Fonts Imports --- */
@import url('https://fonts.googleapis.com/css2?family=Comfortaa:wght@400;500;700&family=Epilogue:wght@400;500;600;700&family=Montserrat:wght@500;600;700&family=JetBrains+Mono:wght@400;500&display=swap');
@import url('https://fonts.googleapis.com/css2?family=Material+Symbols+Outlined:wght,FILL@100..700,0..1&display=swap');

/* --- CSS Root Variables & Color Tokens --- */
:root {
    /* Color Palette (HSL Tailored) */
    --color-primary: #004ac6;
    --color-primary-container: #2563eb;
    --color-primary-fixed: #dbe1ff;
    --color-on-primary: #ffffff;
    --color-secondary: #575e70;
    --color-secondary-container: #d9dff5;
    --color-on-secondary-container: #5c6274;
    --color-tertiary: #943700;
    --color-tertiary-fixed: #ffdbcd;
    --color-on-tertiary-fixed-variant: #7d2d00;
    --color-background: #f8f9fa;
    --color-surface: #ffffff;
    --color-surface-container-low: #f3f4f5;
    --color-surface-container: #edeeef;
    --color-surface-container-high: #e7e8e9;
    --color-surface-container-highest: #e1e3e4;
    --color-on-surface: #191c1d;
    --color-on-surface-variant: #434655;
    --color-outline: #737686;
    --color-outline-variant: #c3c6d7;
    --color-error: #ba1a1a;
    --color-error-container: #ffdad6;
    --color-on-error: #ffffff;
    
    /* Typography Font stacks */
    --font-body: 'Epilogue', sans-serif;
    --font-heading: 'Comfortaa', sans-serif;
    --font-label: 'Montserrat', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
    
    /* Spacings */
    --spacing-xs: 8px;
    --spacing-sm: 12px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-2xl: 48px;
    --container-max: 1200px;
    --border-radius-sm: 4px;
    --border-radius-lg: 8px;
    --border-radius-xl: 12px;
}

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

html, body {
    font-family: var(--font-body);
    background-color: var(--color-background);
    color: var(--color-on-surface);
    line-height: 1.5;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

h1, h2, h3, h4, h5 {
    font-family: var(--font-heading);
    font-weight: 700;
    color: var(--color-on-surface);
}

a {
    color: inherit;
    text-decoration: none;
    transition: color 0.2s ease;
}

button, input, select, textarea {
    font-family: inherit;
    font-size: inherit;
}

/* --- Layouts & Containers --- */
.max-width-container {
    max-width: var(--container-max);
    width: 100%;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.main-content {
    flex-grow: 1;
    padding-top: var(--spacing-lg);
    padding-bottom: var(--spacing-2xl);
}

/* --- Top Navigation Bar --- */
.header-nav {
    position: sticky;
    top: 0;
    z-index: 100;
    background-color: var(--color-surface);
    border-bottom: 1px solid var(--color-outline-variant);
    box-shadow: 0 1px 3px rgba(0,0,0,0.05);
}

.header-container {
    height: 64px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo-text {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 20px;
    color: var(--color-primary);
}

.nav-links {
    display: flex;
    gap: var(--spacing-xl);
    align-items: center;
}

.nav-link {
    font-weight: 500;
    color: var(--color-on-secondary-container);
    padding-bottom: 4px;
    border-bottom: 2px solid transparent;
}

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

.nav-link.active {
    color: var(--color-primary);
    font-weight: 700;
    border-bottom-color: var(--color-primary);
}

.auth-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

/* --- Material Icons Helper --- */
.material-symbols-outlined {
    font-variation-settings: 'FILL' 0, 'wght' 400, 'GRAD' 0, 'opsz' 24;
    vertical-align: middle;
}

/* --- Cards & UI Blocks --- */
.card {
    background-color: var(--color-surface);
    border: 1px solid var(--color-outline-variant);
    border-radius: var(--border-radius-xl);
    padding: var(--spacing-xl);
    transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

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

/* Bento Grid System */
.bento-grid-2 {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
}
@media (min-width: 768px) {
    .bento-grid-2 {
        grid-template-columns: 1fr 1fr;
    }
}

/* --- Buttons & Inputs --- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    font-family: var(--font-label);
    font-weight: 600;
    font-size: 13px;
    letter-spacing: 0.03em;
    text-transform: uppercase;
    padding: 10px 20px;
    border-radius: var(--border-radius-lg);
    border: 1px solid transparent;
    cursor: pointer;
    transition: all 0.2s ease;
}

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

.btn-primary:hover {
    background-color: var(--color-primary-container);
}

.btn-secondary {
    background-color: transparent;
    color: var(--color-on-surface-variant);
    border-color: var(--color-outline-variant);
}

.btn-secondary:hover {
    background-color: var(--color-surface-container-low);
}

.btn-danger {
    background-color: var(--color-error);
    color: var(--color-on-error);
}

.btn-danger:hover {
    opacity: 0.9;
}

.input-text {
    width: 100%;
    padding: 10px 14px;
    border: 1px solid var(--color-outline-variant);
    border-radius: var(--border-radius-lg);
    background-color: var(--color-surface);
    outline: none;
    transition: border-color 0.2s ease;
}

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

/* --- Avatar & Profiles --- */
.avatar-img {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    object-fit: cover;
    border: 1px solid var(--color-outline-variant);
}

.avatar-large {
    width: 96px;
    height: 96px;
    border-radius: 50%;
    object-fit: cover;
    border: 4px solid var(--color-primary-fixed);
}

/* --- Sazzad Aurora Active week Card Animation --- */
.sazzad-card-active {
    position: relative;
    border-radius: var(--border-radius-xl);
    overflow: hidden;
    padding: 2px;
    background-color: var(--color-primary-container);
    box-shadow: 0 10px 20px rgba(37, 99, 235, 0.15);
}

.sazzad-aurora {
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: conic-gradient(from 0deg, transparent 0%, #2563eb 25%, transparent 50%, #2563eb 75%, transparent 100%);
    animation: sazzad-aurora-move 8s linear infinite;
    z-index: 0;
    opacity: 0.8;
}

@keyframes sazzad-aurora-move {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.sazzad-bg-active {
    position: relative;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(12px);
    border-radius: calc(var(--border-radius-xl) - 2px);
    z-index: 1;
    height: 100%;
    padding: var(--spacing-xl);
}

/* --- Leaderboard Page Styles --- */
.podium-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-2xl);
}
@media (min-width: 768px) {
    .podium-container {
        flex-direction: row;
        align-items: flex-end;
        gap: var(--spacing-xl);
    }
}

.podium-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    width: 100%;
    max-width: 260px;
}

.podium-card-gold {
    max-width: 288px;
}

.podium-avatar-wrapper {
    position: relative;
    margin-bottom: var(--spacing-md);
}

.badge-rank {
    position: absolute;
    bottom: -8px;
    right: -8px;
    color: white;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 14px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}

.gold-badge { background-color: #FFD700; color: #1e1e1e; border: 2px solid white; }
.silver-badge { background-color: #C0C0C0; }
.bronze-badge { background-color: #CD7F32; }

.podium-stats {
    background-color: var(--color-surface);
    border: 1px solid var(--color-outline-variant);
    border-radius: var(--border-radius-xl);
    padding: var(--spacing-lg);
    text-align: center;
    width: 100%;
    box-shadow: 0 4px 15px rgba(0,0,0,0.03);
}

.podium-card-gold .podium-stats {
    border-color: var(--color-primary);
    border-width: 2px;
}

/* Leaderboard Filters Bar */
.filters-bar {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    background-color: var(--color-surface-container-low);
    border: 1px solid var(--color-outline-variant);
    padding: var(--spacing-md);
    border-radius: var(--border-radius-xl);
    margin-bottom: var(--spacing-lg);
}
@media (min-width: 992px) {
    .filters-bar {
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
    }
}

.filters-group {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--spacing-sm);
}

.filter-btn-group {
    display: flex;
    background-color: var(--color-surface-container);
    border-radius: var(--border-radius-lg);
    padding: 3px;
    border: 1px solid var(--color-outline-variant);
}

.filter-btn {
    border: none;
    outline: none;
    background: transparent;
    padding: 6px 16px;
    font-family: var(--font-label);
    font-size: 12px;
    font-weight: 600;
    border-radius: calc(var(--border-radius-lg) - 2px);
    cursor: pointer;
    transition: all 0.2s ease;
}

.filter-btn.active {
    background-color: var(--color-primary);
    color: var(--color-on-primary);
}

.select-dropdown {
    padding: 6px 32px 6px 12px;
    border: 1px solid var(--color-outline-variant);
    background-color: var(--color-surface);
    border-radius: var(--border-radius-lg);
    font-family: var(--font-label);
    font-size: 12px;
    font-weight: 600;
    color: var(--color-on-surface-variant);
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%23434655'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M19 9l-7 7-7-7'%3E%3C/path%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 8px center;
    background-size: 14px;
}

/* Leaderboard Custom Table */
.table-container {
    background-color: var(--color-surface);
    border: 1px solid var(--color-outline-variant);
    border-radius: var(--border-radius-xl);
    overflow: hidden;
    margin-bottom: var(--spacing-2xl);
}

.custom-table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
}

.custom-table th, .custom-table td {
    padding: var(--spacing-md) var(--spacing-lg);
}

.custom-table th {
    background-color: var(--color-surface-container-low);
    font-family: var(--font-label);
    font-size: 12px;
    font-weight: 600;
    color: var(--color-on-surface-variant);
    text-transform: uppercase;
    border-bottom: 1px solid var(--color-outline-variant);
}

.custom-table tr {
    border-bottom: 1px solid var(--color-outline-variant);
    transition: background-color 0.15s ease;
}

.custom-table tr:hover {
    background-color: var(--color-surface-container-low);
}

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

/* Sticky Rank Banner */
.sticky-rank-banner {
    position: sticky;
    bottom: 24px;
    z-index: 90;
    background-color: var(--color-secondary-container);
    color: var(--color-on-secondary-container);
    border: 1px solid var(--color-outline-variant);
    border-radius: var(--border-radius-xl);
    padding: var(--spacing-lg);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    align-items: center;
    gap: var(--spacing-md);
    box-shadow: 0 10px 25px rgba(0,0,0,0.1);
    max-width: 800px;
    margin: 0 auto;
}
@media (min-width: 768px) {
    .sticky-rank-banner {
        flex-direction: row;
        gap: var(--spacing-lg);
    }
}

.rank-banner-stats {
    display: flex;
    align-items: center;
    gap: var(--spacing-xl);
}

/* --- Coding Workspace Workspace split-pane --- */
.split-pane-body {
    overflow: hidden;
    height: 100vh;
}

.split-pane-body .main-content {
    padding: 0;
    flex-grow: 1;
    height: calc(100vh - 65px);
    overflow: hidden;
}

.workspace-container {
    height: 100%;
    display: flex;
    overflow: hidden;
}

.pane-left {
    width: 50%;
    background-color: var(--color-surface);
    border-right: 1px solid var(--color-outline-variant);
    overflow-y: auto;
    padding: var(--spacing-xl);
}

.pane-right {
    width: 50%;
    display: flex;
    flex-direction: column;
    background-color: #1e1e1e;
}

.editor-header {
    height: 48px;
    background-color: #2d2d2d;
    border-bottom: 1px solid #3e3e3e;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 var(--spacing-md);
    color: white;
}

.editor-header select {
    background: transparent;
    color: white;
    border: none;
    cursor: pointer;
    font-family: var(--font-label);
    font-weight: 600;
    font-size: 12px;
    outline: none;
}

.editor-header select option {
    background-color: #2d2d2d;
    color: white;
}

.editor-core-container {
    flex-grow: 1;
    display: flex;
    overflow: hidden;
}

.editor-line-numbers {
    width: 48px;
    color: #5c5c5c;
    text-align: right;
    padding-right: var(--spacing-md);
    border-right: 1px solid #3e3e3e;
    font-family: var(--font-mono);
    font-size: 13px;
    line-height: 1.6;
    padding-top: var(--spacing-md);
    user-select: none;
}

.editor-textarea {
    flex-grow: 1;
    background-color: transparent;
    color: #d4d4d4;
    border: none;
    outline: none;
    resize: none;
    font-family: var(--font-mono);
    font-size: 13px;
    line-height: 1.6;
    padding: var(--spacing-md);
    white-space: pre;
    overflow-y: auto;
}

.console-container {
    height: 256px;
    background-color: #1e1e1e;
    border-top: 1px solid #3e3e3e;
    display: flex;
    flex-direction: column;
}

.console-tabs {
    display: flex;
    background-color: #252526;
    border-bottom: 1px solid #3e3e3e;
}

.console-tab {
    padding: var(--spacing-sm) var(--spacing-lg);
    color: rgba(255,255,255,0.4);
    border: none;
    background: transparent;
    cursor: pointer;
    font-family: var(--font-label);
    font-size: 12px;
}

.console-tab.active {
    color: white;
    border-bottom: 2px solid var(--color-primary-container);
}

.console-body {
    flex-grow: 1;
    padding: var(--spacing-md);
    overflow-y: auto;
    font-family: var(--font-mono);
    font-size: 13px;
}

.console-input-block {
    margin-bottom: var(--spacing-md);
}

.console-label {
    font-family: var(--font-label);
    font-size: 11px;
    text-transform: uppercase;
    color: rgba(255,255,255,0.4);
    margin-bottom: var(--spacing-xs);
    display: block;
}

.console-data-box {
    background-color: #2d2d2d;
    padding: var(--spacing-md);
    border-radius: var(--border-radius-lg);
    color: white;
}

.console-action-bar {
    padding: var(--spacing-md);
    background-color: #252526;
    border-top: 1px solid #3e3e3e;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* --- Footer --- */
.footer {
    background-color: var(--color-surface-container-low);
    border-top: 1px solid var(--color-outline-variant);
    padding: var(--spacing-md) 0;
    margin-top: var(--spacing-lg);
}

.footer-container {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    align-items: center;
    gap: var(--spacing-md);
}
@media (min-width: 768px) {
    .footer-container {
        flex-direction: row;
    }
}

.footer-links {
    display: flex;
    gap: var(--spacing-md);
}

/* --- Misc Helper Classes --- */
.flex-row-center {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.text-muted {
    color: var(--color-on-surface-variant);
}

.badge {
    padding: 3px 10px;
    border-radius: 999px;
    font-family: var(--font-label);
    font-size: 11px;
    font-weight: 700;
}

.badge-success { background-color: #d1fae5; color: #065f46; }
.badge-warning { background-color: #fef3c7; color: #92400e; }
.badge-danger { background-color: var(--color-error-container); color: var(--color-on-error-container); }
.badge-info { background-color: var(--color-secondary-container); color: var(--color-on-secondary-container); }