/* ==========================================================================
   SIPENDEKARKU — Design System & Responsive Stylesheet
   Version: 1.3.0 (Precision Mobile & Tablet Responsive Architecture)
   ========================================================================== */

:root {
    --emerald: #059669;
    --emerald-dark: #047857;
    --emerald-light: #ecfdf5;
    --emerald-border: #a7f3d0;
    --emerald-focus: rgba(5, 150, 105, 0.2);

    --amber: #f59e0b;
    --amber-dark: #b45309;
    --amber-light: #fffbeb;
    --amber-border: #fde68a;

    --rose: #e11d48;
    --rose-light: #fff1f2;
    --rose-border: #fecdd3;

    --dark: #0f172a;
    --slate-800: #1e293b;
    --slate-700: #334155;
    --slate-600: #475569;
    --slate-500: #64748b;
    --slate-400: #94a3b8;
    --slate-300: #cbd5e1;
    --slate-200: #e2e8f0;
    --slate-100: #f1f5f9;
    --slate-50: #f8fafc;
    --bg: #f8fafc;
    --line: #e2e8f0;

    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    --radius-full: 9999px;

    --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.05);
    --shadow-md: 0 4px 14px rgba(15, 23, 42, 0.06);
    --shadow-lg: 0 10px 25px rgba(15, 23, 42, 0.08);
}

/* ==========================================================================
   Global Resets & Base
   ========================================================================== */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    background: var(--bg);
    color: var(--dark);
    font-family: 'Plus Jakarta Sans', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    font-size: 14px;
    line-height: 1.5;
    min-height: 100vh;
    min-height: 100dvh;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    -webkit-tap-highlight-color: transparent;
}

/* ==========================================================================
   App Layout & Shell
   ========================================================================== */
.app-shell {
    min-height: 100vh;
    display: flex;
    position: relative;
    width: 100%;
    overflow-x: hidden;
}

/* Sidebar Backdrop for Mobile/Tablet Drawer */
.sidebar-backdrop {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(15, 23, 42, 0.5);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    z-index: 40;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.25s ease;
}

.sidebar-backdrop.active {
    opacity: 1;
    pointer-events: auto;
}

/* Sidebar Component */
.sidebar {
    width: 260px;
    flex: none;
    background: #ffffff;
    border-right: 1px solid var(--line);
    padding: 24px 16px 20px;
    display: flex;
    flex-direction: column;
    position: fixed;
    inset: 0 auto 0 0;
    z-index: 50;
    overflow-y: auto;
    transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

.sidebar-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
}

.brand {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--dark);
    text-decoration: none;
    font-size: 15px;
    line-height: 1.1;
}

.brand b {
    font-weight: 800;
}

.brand-mark {
    display: grid;
    place-items: center;
    width: 34px;
    height: 34px;
    border-radius: 10px;
    background: var(--emerald);
    color: #ffffff;
    font-size: 18px;
    flex-shrink: 0;
}

.sidebar-close-btn {
    display: none;
    background: var(--slate-100);
    border: none;
    width: 32px;
    height: 32px;
    border-radius: 8px;
    color: var(--slate-600);
    font-size: 14px;
    font-weight: 700;
    cursor: pointer;
    place-items: center;
}

.school {
    display: flex;
    align-items: center;
    gap: 10px;
    background: var(--slate-50);
    border: 1px solid var(--slate-200);
    padding: 10px 12px;
    border-radius: 12px;
    font-size: 11px;
    margin-bottom: 20px;
}

.school-icon {
    display: grid;
    place-items: center;
    width: 28px;
    height: 28px;
    border-radius: 8px;
    background: #d1fae5;
    color: var(--emerald-dark);
    font-size: 15px;
    flex-shrink: 0;
}

.school div {
    display: flex;
    flex-direction: column;
    gap: 2px;
    flex: 1;
    min-width: 0;
}

.school b {
    font-size: 12px;
    color: var(--dark);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.school small {
    color: var(--slate-400);
}

.swap {
    color: var(--slate-500);
    font-size: 12px;
}

/* Navigation Links */
.nav {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.nav a {
    min-height: 42px;
    padding: 8px 12px;
    border-radius: 10px;
    color: var(--slate-600);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 600;
    font-size: 13px;
    transition: all 0.15s ease;
}

.nav a > span {
    font-size: 17px;
    width: 20px;
    text-align: center;
    flex-shrink: 0;
}

.nav a:hover {
    background: var(--slate-100);
    color: var(--dark);
}

.nav a.active {
    color: var(--emerald-dark);
    background: var(--emerald-light);
    font-weight: 700;
}

.nav i {
    font-style: normal;
    font-size: 10px;
    font-weight: 700;
    background: #d1fae5;
    color: var(--emerald-dark);
    border-radius: 999px;
    padding: 2px 7px;
    margin-left: auto;
}

/* Sidebar Footer */
.sidebar-footer {
    margin-top: auto;
    border-top: 1px solid var(--line);
    padding-top: 16px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.sidebar-footer > div:nth-child(2) {
    display: flex;
    flex-direction: column;
    gap: 2px;
    flex: 1;
    min-width: 0;
}

.sidebar-footer b {
    font-size: 12px;
    color: var(--dark);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.sidebar-footer small {
    font-size: 10.5px;
    color: var(--slate-400);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* Avatars */
.user-avatar, .avatar, .teacher-avatar, .tiny-avatar {
    display: grid;
    place-items: center;
    border-radius: 50%;
    background: #d1fae5;
    color: var(--emerald-dark);
    font-size: 11px;
    font-weight: 800;
    flex-shrink: 0;
}

.user-avatar { width: 36px; height: 36px; }
.avatar { width: 36px; height: 36px; }
.teacher-avatar { width: 34px; height: 34px; }
.tiny-avatar { width: 28px; height: 28px; font-size: 9px; }

/* ==========================================================================
   Main Content Area & Topbar
   ========================================================================== */
main {
    margin-left: 260px;
    width: calc(100% - 260px);
    min-width: 0;
    display: flex;
    flex-direction: column;
}

.topbar {
    height: 68px;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--line);
    padding: 0 32px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: sticky;
    top: 0;
    z-index: 30;
}

.menu-btn {
    display: none;
    background: none;
    border: none;
    font-size: 22px;
    color: var(--slate-700);
    cursor: pointer;
    padding: 8px;
    margin-left: -8px;
    border-radius: 8px;
}

.menu-btn:hover {
    background: var(--slate-100);
}

.breadcrumb {
    font-size: 13px;
    color: var(--slate-400);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.breadcrumb b {
    color: var(--slate-800);
}

.breadcrumb strong {
    font-weight: 400;
    padding: 0 6px;
    color: var(--slate-300);
}

.top-actions {
    display: flex;
    align-items: center;
    gap: 16px;
    flex-shrink: 0;
}

.notification {
    font-size: 20px;
    color: var(--slate-600);
    background: none;
    border: none;
    position: relative;
    cursor: pointer;
    padding: 6px;
    border-radius: 8px;
}

.notification:hover {
    background: var(--slate-100);
}

.notification em {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--rose);
    position: absolute;
    right: 4px;
    top: 4px;
    border: 1.5px solid #ffffff;
}

/* Page Body Container */
.page {
    max-width: 1400px;
    width: 100%;
    padding: 32px;
    margin: 0 auto;
}

/* ==========================================================================
   Welcome & Deadline Section
   ========================================================================== */
.welcome {
    display: flex;
    justify-content: space-between;
    gap: 20px;
    align-items: center;
    margin-bottom: 24px;
}

.eyebrow {
    font-size: 10.5px;
    letter-spacing: 0.08em;
    font-weight: 800;
    color: var(--slate-400);
    text-transform: uppercase;
    margin-bottom: 6px;
}

.eyebrow span {
    color: var(--slate-300);
    padding: 0 4px;
}

h1 {
    font-size: 24px;
    letter-spacing: -0.03em;
    font-weight: 800;
    color: var(--dark);
    line-height: 1.25;
}

h1 span {
    font-size: 20px;
}

.subtle {
    color: var(--slate-500);
    margin-top: 6px;
    font-size: 13px;
}

.deadline {
    background: var(--amber-light);
    border: 1px solid var(--amber-border);
    border-radius: var(--radius-md);
    padding: 10px 16px;
    display: flex;
    gap: 12px;
    align-items: center;
    flex-shrink: 0;
}

.clock {
    display: grid;
    place-items: center;
    width: 32px;
    height: 32px;
    border-radius: 10px;
    background: #fef3c7;
    color: var(--amber-dark);
    font-size: 18px;
    flex-shrink: 0;
}

.deadline div:nth-child(2) {
    display: grid;
    grid-template-columns: 1fr auto;
    column-gap: 10px;
    align-items: baseline;
}

.deadline small {
    color: #92400e;
    font-size: 10px;
    font-weight: 600;
}

.deadline b {
    color: var(--amber-dark);
    font-size: 15px;
    letter-spacing: 0.04em;
    font-weight: 800;
}

.deadline span {
    font-size: 9.5px;
    color: #b45309;
    grid-column: 1 / -1;
    margin-top: 2px;
}

/* ==========================================================================
   Metrics Cards Section
   ========================================================================== */
.metrics {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    margin-bottom: 24px;
}

.metric {
    min-height: 105px;
    background: #ffffff;
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    padding: 18px 20px;
    display: flex;
    align-items: center;
    gap: 16px;
    box-shadow: var(--shadow-sm);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

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

.metric-icon {
    display: grid;
    place-items: center;
    width: 46px;
    height: 46px;
    border-radius: 12px;
    background: var(--emerald-light);
    color: var(--emerald);
    font-size: 22px;
    flex-shrink: 0;
}

.rank .metric-icon {
    background: #fff7ed;
    color: #ea580c;
}

.metric > div:nth-child(2) {
    display: flex;
    flex-direction: column;
    gap: 3px;
    min-width: 0;
}

.metric span {
    font-size: 11px;
    color: var(--slate-500);
    font-weight: 600;
}

.metric strong {
    font-size: 24px;
    letter-spacing: -0.04em;
    font-weight: 800;
    color: var(--dark);
    line-height: 1.1;
    display: flex;
    align-items: baseline;
    gap: 6px;
}

.metric strong i {
    font-style: normal;
    font-size: 11.5px;
    color: var(--slate-400);
    font-weight: 500;
    letter-spacing: 0;
}

.metric small {
    font-size: 10.5px;
    color: var(--slate-400);
}

.metric small b {
    color: var(--emerald);
}

.metric-ring {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: grid;
    place-items: center;
    background: conic-gradient(var(--emerald) 63%, #d1fae5 0);
    position: relative;
    flex-shrink: 0;
}

.metric-ring::after {
    content: '';
    background: #ffffff;
    width: 38px;
    height: 38px;
    position: absolute;
    border-radius: 50%;
}

.metric-ring b {
    font-size: 10px;
    z-index: 1;
    color: var(--emerald-dark);
    font-weight: 800;
}

/* ==========================================================================
   Content Grid & Checklist Card
   ========================================================================== */
.content-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.8fr) minmax(280px, 0.85fr);
    gap: 24px;
}

.checklist-card, .quote-card, .teacher-card, .streak-card, .history-card, .leaderboard {
    background: #ffffff;
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}

.checklist-card {
    padding: 24px;
}

.section-head {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 12px;
}

.section-head h2 {
    font-size: 17px;
    letter-spacing: -0.02em;
    font-weight: 800;
    color: var(--dark);
}

.save-status {
    color: var(--emerald);
    font-size: 10.5px;
    font-weight: 700;
    background: var(--emerald-light);
    padding: 5px 10px;
    border-radius: var(--radius-full);
    white-space: nowrap;
}

/* Category Tabs */
.tabs {
    display: flex;
    gap: 16px;
    border-bottom: 1px solid var(--line);
    margin-top: 18px;
    overflow-x: auto;
    scrollbar-width: none;
    -ms-overflow-style: none;
    -webkit-overflow-scrolling: touch;
}

.tabs::-webkit-scrollbar {
    display: none;
}

.tab {
    border: none;
    border-bottom: 2px solid transparent;
    padding: 0 0 10px;
    background: transparent;
    color: var(--slate-400);
    font-family: inherit;
    font-size: 12px;
    font-weight: 700;
    cursor: pointer;
    white-space: nowrap;
    display: flex;
    align-items: center;
    gap: 6px;
    transition: all 0.15s ease;
}

.tab b {
    border-radius: var(--radius-full);
    background: var(--slate-100);
    padding: 2px 6px;
    font-size: 9.5px;
    color: var(--slate-600);
}

.tab.active {
    color: var(--emerald-dark);
    border-color: var(--emerald);
}

.tab.active b {
    background: #d1fae5;
    color: var(--emerald-dark);
}

/* Activity Items */
.activity-list {
    margin-top: 8px;
}

.activity {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 13px 4px;
    border-bottom: 1px solid var(--slate-100);
    transition: background 0.15s ease;
    cursor: pointer;
}

.activity:last-child {
    border-bottom: none;
}

.activity:hover {
    background: var(--slate-50);
}

.activity-check {
    appearance: none;
    -webkit-appearance: none;
    width: 22px;
    height: 22px;
    border: 2px solid var(--slate-300);
    border-radius: 7px;
    margin: 0;
    flex-shrink: 0;
    cursor: pointer;
    position: relative;
    background: #ffffff;
    transition: all 0.15s ease;
}

.activity-check:checked {
    background: var(--emerald);
    border-color: var(--emerald);
}

.activity-check:checked::after {
    content: '✓';
    color: #ffffff;
    position: absolute;
    font-size: 14px;
    font-weight: 800;
    left: 4px;
    top: 0px;
}

.activity-info {
    flex: 1;
    min-width: 0;
}

.activity-info strong {
    font-size: 13px;
    font-weight: 700;
    color: var(--dark);
    display: block;
}

.activity-info p {
    margin-top: 2px;
    color: var(--slate-400);
    font-size: 11px;
    line-height: 1.4;
}

.point-tag {
    padding: 4px 8px;
    border: 1px solid var(--emerald-border);
    border-radius: var(--radius-full);
    color: var(--emerald-dark);
    background: var(--emerald-light);
    font-size: 10px;
    font-weight: 800;
    white-space: nowrap;
    flex-shrink: 0;
}

.text-input {
    border: 1.5px solid var(--slate-200);
    border-radius: 8px;
    width: 100px;
    padding: 6px 10px;
    font-family: inherit;
    font-size: 12px;
    font-weight: 600;
    color: var(--slate-700);
    background: var(--slate-50);
    outline: none;
    transition: all 0.15s ease;
    flex-shrink: 0;
}

.text-input:focus {
    background: #ffffff;
    border-color: var(--emerald);
    box-shadow: 0 0 0 3px var(--emerald-focus);
}

/* Submit Action Button */
.finish-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    width: 100%;
    margin-top: 20px;
    border: none;
    border-radius: var(--radius-md);
    background: var(--emerald);
    color: #ffffff;
    font-family: inherit;
    font-size: 13px;
    font-weight: 700;
    padding: 14px;
    cursor: pointer;
    box-shadow: 0 4px 14px rgba(5, 150, 105, 0.25);
    transition: all 0.2s ease;
}

.finish-btn:hover {
    background: var(--emerald-dark);
    box-shadow: 0 6px 18px rgba(5, 150, 105, 0.35);
    transform: translateY(-1px);
}

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

/* ==========================================================================
   Right Rail Cards
   ========================================================================== */
.right-rail {
    display: flex;
    flex-direction: column;
    gap: 16px;
    align-content: start;
}

.quote-card {
    padding: 22px;
    background: #064e3b;
    color: #ffffff;
    border: none;
    position: relative;
    overflow: hidden;
}

.quote-card::after {
    content: '✦';
    position: absolute;
    font-size: 90px;
    color: #10b981;
    opacity: 0.12;
    right: -10px;
    bottom: -30px;
    pointer-events: none;
}

.quote-symbol {
    color: #6ee7b7;
    font-size: 28px;
    line-height: 1;
}

.quote-card p {
    font-size: 12.5px;
    font-weight: 600;
    line-height: 1.65;
    margin: 6px 0 10px;
}

.quote-card small {
    color: #a7f3d0;
    font-size: 10px;
    font-weight: 500;
}

.teacher-card {
    padding: 18px;
}

.teacher-head {
    display: flex;
    align-items: center;
    gap: 10px;
}

.teacher-avatar {
    background: #e0e7ff;
    color: #4f46e5;
}

.teacher-head div:nth-child(2) {
    display: flex;
    flex-direction: column;
    gap: 2px;
    flex: 1;
}

.teacher-head span {
    font-size: 10px;
    color: var(--slate-400);
}

.teacher-head b {
    font-size: 12px;
    color: var(--dark);
}

.teacher-head .verify {
    display: grid;
    place-items: center;
    color: #ffffff;
    background: var(--emerald);
    width: 18px;
    height: 18px;
    border-radius: 50%;
    font-size: 10px;
}

.teacher-card > p {
    font-size: 11.5px;
    line-height: 1.6;
    color: var(--slate-700);
    background: var(--amber-light);
    border: 1px solid var(--amber-border);
    border-radius: var(--radius-sm);
    padding: 10px 12px;
    margin: 12px 0 8px;
}

.teacher-card > small {
    font-size: 10px;
    color: var(--slate-400);
}

.streak-card {
    padding: 16px 18px;
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.streak-card > div:first-child {
    display: flex;
    align-items: center;
    gap: 10px;
}

.streak-card > div:first-child > span {
    font-size: 26px;
}

.streak-card p {
    display: flex;
    flex-direction: column;
    margin: 0;
}

.streak-card b {
    font-size: 15px;
    color: var(--dark);
}

.streak-card small {
    font-size: 10px;
    color: var(--slate-400);
}

.week {
    display: flex;
    justify-content: space-between;
    gap: 4px;
}

.week i {
    font-style: normal;
    display: grid;
    place-items: center;
    width: 26px;
    height: 26px;
    border-radius: 50%;
    font-size: 10px;
    font-weight: 700;
    color: var(--slate-400);
    background: var(--slate-100);
}

.week i.on {
    background: #d1fae5;
    color: var(--emerald-dark);
}

.week i.today {
    border: 2px solid var(--emerald);
    color: var(--emerald-dark);
    background: #ffffff;
    font-weight: 800;
}

/* ==========================================================================
   Bottom Grid (History & Leaderboard)
   ========================================================================== */
.bottom-grid {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 24px;
    margin-top: 24px;
}

.history-card, .leaderboard {
    padding: 24px;
}

.section-head a {
    font-size: 11px;
    font-weight: 700;
    color: var(--emerald);
    text-decoration: none;
    margin-top: 4px;
}

.section-head a:hover {
    text-decoration: underline;
}

.chart {
    height: 150px;
    padding: 16px 4px 0;
    display: grid;
    grid-template-rows: 1fr 24px;
}

.bars {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    border-bottom: 1px solid var(--slate-100);
    padding: 0 8px;
    height: 100%;
}

.bars span {
    width: 9%;
    background: var(--emerald-border);
    border-radius: 4px 4px 0 0;
    position: relative;
    min-height: 8px;
    transition: height 0.3s ease;
}

.bars span i {
    position: absolute;
    top: -16px;
    font-size: 9px;
    font-style: normal;
    font-weight: 600;
    color: var(--slate-400);
    left: 50%;
    transform: translateX(-50%);
}

.bars .today-bar {
    background: var(--emerald);
}

.days {
    display: flex;
    justify-content: space-between;
    color: var(--slate-400);
    font-size: 10px;
    font-weight: 600;
    padding-top: 8px;
}

.leaderboard ol {
    list-style: none;
    padding: 10px 0 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.leaderboard li {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 10px;
    border-radius: var(--radius-md);
    background: var(--slate-50);
}

.leaderboard .me {
    background: var(--emerald-light);
    border: 1px solid var(--emerald-border);
}

.medal {
    display: grid;
    place-items: center;
    border-radius: 50%;
    width: 22px;
    height: 22px;
    font-size: 10px;
    font-weight: 800;
    flex-shrink: 0;
}

.gold { background: #fef3c7; color: var(--amber-dark); }
.silver { background: #f1f5f9; color: var(--slate-600); }
.bronze { background: #ffedd5; color: #c2410c; }

.violet { background: #ede9fe; color: #6d28d9; }
.orange { background: #ffedd5; color: #c2410c; }
.green { background: #d1fae5; color: var(--emerald-dark); }

.leaderboard strong {
    font-size: 11.5px;
    font-weight: 700;
    flex: 1;
    color: var(--dark);
}

.leaderboard strong small {
    color: var(--emerald);
    background: #d1fae5;
    padding: 2px 6px;
    border-radius: var(--radius-full);
    font-size: 9px;
    margin-left: 4px;
}

.leaderboard em {
    font-style: normal;
    font-weight: 800;
    color: var(--slate-700);
    font-size: 11px;
}

/* ==========================================================================
   Responsive Breakpoints: Tablet (769px - 1024px)
   ========================================================================== */
@media (max-width: 1024px) {
    .sidebar {
        transform: translateX(-100%);
        width: 270px;
        box-shadow: 10px 0 30px rgba(15, 23, 42, 0.15);
    }

    .sidebar.open {
        transform: translateX(0);
    }

    .sidebar-backdrop {
        display: block;
    }

    .sidebar-close-btn {
        display: grid;
    }

    main {
        margin-left: 0;
        width: 100%;
    }

    .topbar {
        padding: 0 24px;
    }

    .menu-btn {
        display: block;
    }

    .page {
        padding: 24px;
    }

    .content-grid {
        grid-template-columns: 1fr;
    }

    .right-rail {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 16px;
    }

    .right-rail > * {
        height: 100%;
    }

    .bottom-grid {
        grid-template-columns: 1fr 1fr;
        gap: 16px;
    }
}

/* ==========================================================================
   Responsive Breakpoints: Small Tablet & Large Mobile (max-width: 768px)
   ========================================================================== */
@media (max-width: 768px) {
    .topbar {
        height: 58px;
        padding: 0 16px;
    }

    .breadcrumb {
        font-size: 12px;
    }

    .page {
        padding: 20px 16px 32px;
    }

    .welcome {
        flex-direction: column;
        align-items: flex-start;
        gap: 14px;
        margin-bottom: 20px;
    }

    .deadline {
        width: 100%;
        min-width: 0;
    }

    h1 {
        font-size: 20px;
    }

    .metrics {
        grid-template-columns: 1fr;
        gap: 12px;
    }

    .metric {
        min-height: 76px;
        padding: 12px 16px;
    }

    .metric strong {
        font-size: 20px;
    }

    .right-rail {
        grid-template-columns: 1fr;
        gap: 14px;
        margin-top: 14px;
    }

    .bottom-grid {
        grid-template-columns: 1fr;
        gap: 14px;
        margin-top: 14px;
    }

    .checklist-card, .history-card, .leaderboard {
        padding: 18px 16px;
    }

    .section-head {
        flex-wrap: wrap;
        gap: 8px;
    }

    .activity {
        flex-wrap: wrap;
        gap: 10px;
        padding: 12px 0;
    }

    .activity-info {
        flex: 1;
        min-width: 170px;
    }

    .text-input {
        width: 90px;
    }

    .point-tag {
        font-size: 9px;
        padding: 3px 6px;
    }

    .chart {
        height: 130px;
    }

    .bars span {
        width: 10%;
    }
}

/* ==========================================================================
   Responsive Breakpoints: Mobile Narrow (max-width: 420px)
   ========================================================================== */
@media (max-width: 420px) {
    .page {
        padding: 14px 12px 28px;
    }

    .deadline div:nth-child(2) {
        grid-template-columns: 1fr;
    }

    .activity {
        gap: 8px;
    }

    .activity-info strong {
        font-size: 12.5px;
    }

    .activity-info p {
        font-size: 10px;
    }

    .text-input {
        width: 80px;
        font-size: 11px;
    }

    .tabs {
        gap: 12px;
    }

    .tab {
        font-size: 11px;
    }
}