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

:root {
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --secondary: #8b5cf6;
    --success: #10b981;
    --danger: #ef4444;
    --warning: #f59e0b;
    --bg-light: #f8fafc;
    --bg-dark: #0f172a;
    --card-light: #ffffff;
    --card-dark: #1e293b;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --text-dark-primary: #f1f5f9;
    --text-dark-secondary: #94a3b8;
    --border-light: #e2e8f0;
    --border-dark: #334155;
    --shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg-light);
    color: var(--text-primary);
    min-height: 100vh;
    transition: all 0.3s ease;
    -webkit-font-smoothing: antialiased;
}

body.dark-mode {
    background: var(--bg-dark);
    color: var(--text-dark-primary);
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 20px;
}

/* Header */
.header {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    padding: 30px;
    border-radius: 20px;
    margin-bottom: 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
    box-shadow: var(--shadow-lg);
}

.header-title h1 {
    font-size: 2rem;
    font-weight: 800;
    color: #fff;
    margin-bottom: 5px;
}

.header-title p {
    color: rgba(255, 255, 255, 0.9);
    font-size: 1rem;
}

.header-controls {
    display: flex;
    gap: 12px;
    align-items: center;
}

.user-badge {
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    padding: 10px 20px;
    border-radius: 50px;
    color: #fff;
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    transition: all 0.3s;
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.user-badge:hover {
    background: rgba(255, 255, 255, 0.3);
}

.level-tag {
    background: linear-gradient(135deg, #fbbf24, #f59e0b);
    color: #1e293b;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 700;
}

.icon-btn {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.3);
    color: #fff;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    transition: all 0.3s;
}

.icon-btn:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: translateY(-2px);
}

.notif-badge {
    position: absolute;
    top: -5px;
    right: -5px;
    width: 18px;
    height: 18px;
    background: var(--danger);
    border-radius: 50%;
    font-size: 0.7rem;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
}

/* Language Selector */
.lang-selector {
    display: flex;
    align-items: center;
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.3);
    padding: 0 12px;
    height: 44px;
    color: #fff;
    transition: all 0.3s;
    position: relative;
    cursor: pointer;
}

.lang-selector:hover {
    background: rgba(255, 255, 255, 0.3);
}

.lang-icon {
    margin-right: 8px;
    opacity: 0.9;
}

.lang-select {
    background: transparent;
    border: none;
    color: #fff;
    font-family: inherit;
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    outline: none;
    appearance: none;
    /* Hide default arrow */
    -webkit-appearance: none;
    padding-right: 18px;
}

/* Custom dropdown arrow using background image */
.lang-select {
    background-image: url("data:image/svg+xml;charset=US-ASCII,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20width%3D%22292.4%22%20height%3D%22292.4%22%3E%3Cpath%20fill%3D%22%23FFFFFF%22%20d%3D%22M287%2069.4a17.6%2017.6%200%200%200-13-5.4H18.4c-5%200-9.3%201.8-12.9%205.4A17.6%2017.6%200%200%200%200%2082.2c0%205%201.8%209.3%205.4%2012.9l128%20127.9c3.6%203.6%207.8%205.4%2012.8%205.4s9.2-1.8%2012.8-5.4L287%2095c3.5-3.5%205.4-7.8%205.4-12.8%200-5-1.9-9.2-5.5-12.8z%22%2F%3E%3C%2Fsvg%3E");
    background-repeat: no-repeat;
    background-position: right center;
    background-size: 10px auto;
}

.lang-select option {
    background: var(--card-light);
    color: var(--text-primary);
    font-weight: 500;
}

body.dark-mode .lang-select option {
    background: var(--card-dark);
    color: var(--text-dark-primary);
}

/* Navigation Tabs */
.nav-tabs {
    display: flex;
    gap: 8px;
    margin-bottom: 30px;
    padding: 8px;
    background: var(--card-light);
    border-radius: 16px;
    box-shadow: var(--shadow);
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    flex-wrap: nowrap;
}

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

body.dark-mode .nav-tabs {
    background: var(--card-dark);
}

.nav-tab {
    padding: 12px 24px;
    border-radius: 12px;
    border: none;
    background: transparent;
    color: var(--text-secondary);
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    font-size: 0.95rem;
}

body.dark-mode .nav-tab {
    color: var(--text-dark-secondary);
}

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

body.dark-mode .nav-tab:hover {
    background: var(--bg-dark);
    color: var(--text-dark-primary);
}

.nav-tab.active {
    background: var(--primary);
    color: #fff;
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.4);
    transform: translateY(-1px);
}

/* Cards */
.card {
    background: var(--card-light);
    border-radius: 16px;
    padding: 24px;
    box-shadow: var(--shadow);
    border: 1px solid var(--border-light);
    transition: all 0.3s;
}

body.dark-mode .card {
    background: var(--card-dark);
    border-color: var(--border-dark);
}

.card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

/* Dashboard Grid */
.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.stat-card {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    padding: 24px;
    border-radius: 16px;
    color: #fff;
    position: relative;
    overflow: hidden;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    transform: rotate(45deg);
}

.stat-card.alt1 {
    background: linear-gradient(135deg, #ec4899, #f43f5e);
}

.stat-card.alt2 {
    background: linear-gradient(135deg, #06b6d4, #0ea5e9);
}

.stat-card.alt3 {
    background: linear-gradient(135deg, #10b981, #14b8a6);
}

.stat-label {
    font-size: 0.875rem;
    opacity: 0.9;
    margin-bottom: 8px;
}

.stat-value {
    font-size: 2.5rem;
    font-weight: 800;
}

/* Progress Bar */
.progress-section {
    margin-bottom: 30px;
}

.progress-header {
    display: flex;
    justify-content: space-between;
    margin-bottom: 12px;
}

.progress-header h3 {
    font-size: 1rem;
    font-weight: 600;
}

.progress-bar {
    height: 12px;
    background: var(--border-light);
    border-radius: 6px;
    overflow: hidden;
}

body.dark-mode .progress-bar {
    background: var(--border-dark);
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    border-radius: 6px;
    transition: width 0.5s ease;
}

/* Lessons Grid */
.lessons-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 20px;
}

.lesson-card {
    background: var(--card-light);
    border-radius: 16px;
    padding: 24px;
    border: 1px solid var(--border-light);
    cursor: pointer;
    transition: all 0.3s;
    border-left: 4px solid var(--primary);
    position: relative;
}

body.dark-mode .lesson-card {
    background: var(--card-dark);
    border-color: var(--border-dark);
    border-left-color: var(--primary);
}

.lesson-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.lesson-card.completed {
    border-left-color: var(--success);
}

.lesson-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 12px;
}

.lesson-title {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-primary);
}

body.dark-mode .lesson-title {
    color: var(--text-dark-primary);
}

.lesson-status {
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
}

.lesson-status.done {
    background: rgba(16, 185, 129, 0.1);
    color: var(--success);
}

.lesson-status.new {
    background: rgba(245, 158, 11, 0.1);
    color: var(--warning);
}

.lesson-desc {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.6;
    margin-bottom: 16px;
}

body.dark-mode .lesson-desc {
    color: var(--text-dark-secondary);
}

.lesson-meta {
    display: flex;
    gap: 16px;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

body.dark-mode .lesson-meta {
    color: var(--text-dark-secondary);
}

.lesson-actions {
    display: flex;
    gap: 8px;
    margin-top: 16px;
}

.btn-fav {
    padding: 8px 16px;
    border-radius: 8px;
    border: 1px solid var(--border-light);
    background: transparent;
    cursor: pointer;
    font-size: 0.85rem;
    transition: all 0.3s;
    color: var(--text-secondary);
}

body.dark-mode .btn-fav {
    border-color: var(--border-dark);
    color: var(--text-dark-secondary);
}

.btn-fav:hover,
.btn-fav.active {
    background: var(--danger);
    color: #fff;
    border-color: var(--danger);
}

/* Search */
.search-box {
    display: flex;
    gap: 12px;
    margin-bottom: 24px;
}

.search-input {
    flex: 1;
    padding: 14px 20px;
    border: 2px solid var(--border-light);
    border-radius: 12px;
    font-size: 1rem;
    transition: all 0.3s;
    background: var(--card-light);
    color: var(--text-primary);
}

body.dark-mode .search-input {
    background: var(--card-dark);
    border-color: var(--border-dark);
    color: var(--text-dark-primary);
}

.search-input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.btn-primary {
    padding: 14px 28px;
    background: var(--primary);
    color: #fff;
    border: none;
    border-radius: 12px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
}

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.4);
}

.btn-secondary {
    padding: 14px 28px;
    background: var(--card-light);
    color: var(--text-primary);
    border: 2px solid var(--border-light);
    border-radius: 12px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
}

body.dark-mode .btn-secondary {
    background: var(--card-dark);
    color: var(--text-dark-primary);
    border-color: var(--border-dark);
}

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

/* Tab Content */
.tab-content {
    display: none;
    animation: fadeIn 0.3s ease;
}

.tab-content.active {
    display: block;
}

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

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Quiz */
.quiz-card {
    max-width: 800px;
    margin: 0 auto;
}

.quiz-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border-light);
}

body.dark-mode .quiz-header {
    border-color: var(--border-dark);
}

.quiz-counter {
    background: var(--primary);
    color: #fff;
    padding: 8px 20px;
    border-radius: 20px;
    font-weight: 600;
}

.question {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 24px;
    line-height: 1.6;
}

.options {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.option {
    padding: 16px 20px;
    background: var(--bg-light);
    border: 2px solid var(--border-light);
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.3s;
    font-size: 1rem;
}

body.dark-mode .option {
    background: var(--bg-dark);
    border-color: var(--border-dark);
}

.option:hover {
    border-color: var(--primary);
    background: rgba(99, 102, 241, 0.05);
}

.option.correct {
    background: rgba(16, 185, 129, 0.1);
    border-color: var(--success);
    color: var(--success);
}

.option.wrong {
    background: rgba(239, 68, 68, 0.1);
    border-color: var(--danger);
    color: var(--danger);
}

.result-box {
    text-align: center;
    padding: 40px;
}

.result-score {
    font-size: 4rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 16px;
}

.result-msg {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 30px;
}

body.dark-mode .result-msg {
    color: var(--text-dark-secondary);
}

.result-btns {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

/* Notes */
.notes-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
}

.note-card {
    padding: 20px;
    border-radius: 12px;
    position: relative;
    background: linear-gradient(135deg, #fef3c7, #fde68a);
}

.note-card.pink {
    background: linear-gradient(135deg, #fce7f3, #fbcfe8);
}

.note-card.blue {
    background: linear-gradient(135deg, #e0f2fe, #bae6fd);
}

.note-card.green {
    background: linear-gradient(135deg, #d1fae5, #a7f3d0);
}

.note-title {
    font-weight: 700;
    margin-bottom: 8px;
    color: #1e293b;
}

.note-text {
    font-size: 0.9rem;
    color: #475569;
    line-height: 1.5;
    margin-bottom: 12px;
}

.note-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.note-date {
    font-size: 0.8rem;
    color: #64748b;
}

.note-delete {
    background: rgba(0, 0, 0, 0.1);
    border: none;
    padding: 6px 12px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.8rem;
    transition: all 0.3s;
}

.note-delete:hover {
    background: var(--danger);
    color: #fff;
}

/* Forum */
.forum-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.post-card {
    padding: 24px;
    background: var(--card-light);
    border-radius: 12px;
    border: 1px solid var(--border-light);
    border-left: 4px solid var(--primary);
}

body.dark-mode .post-card {
    background: var(--card-dark);
    border-color: var(--border-dark);
    border-left-color: var(--primary);
}

.post-header {
    display: flex;
    justify-content: space-between;
    margin-bottom: 12px;
}

.post-author {
    font-weight: 600;
    color: var(--primary);
}

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

body.dark-mode .post-time {
    color: var(--text-dark-secondary);
}

.post-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 8px;
}

.post-content {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 16px;
}

body.dark-mode .post-content {
    color: var(--text-dark-secondary);
}

.post-actions {
    display: flex;
    gap: 16px;
}

.post-action {
    color: var(--primary);
    cursor: pointer;
    font-size: 0.9rem;
    transition: all 0.3s;
}

.post-action:hover {
    color: var(--primary-dark);
}

/* Leaderboard */
.leaderboard-table {
    width: 100%;
    border-collapse: collapse;
}

.leaderboard-table thead {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: #fff;
}

.leaderboard-table th,
.leaderboard-table td {
    padding: 16px;
    text-align: left;
}

.leaderboard-table tbody tr {
    border-bottom: 1px solid var(--border-light);
    transition: all 0.3s;
}

body.dark-mode .leaderboard-table tbody tr {
    border-color: var(--border-dark);
}

.leaderboard-table tbody tr:hover {
    background: var(--bg-light);
}

body.dark-mode .leaderboard-table tbody tr:hover {
    background: var(--bg-dark);
}

.rank {
    font-weight: 700;
}

.rank-1 {
    color: #fbbf24;
    font-size: 1.2rem;
}

.rank-2 {
    color: #94a3b8;
}

.rank-3 {
    color: #d97706;
}

/* Certificate */
.certificate {
    max-width: 700px;
    margin: 30px auto;
    padding: 50px;
    background: linear-gradient(135deg, #fef3c7, #fde68a);
    border: 8px double #d97706;
    border-radius: 8px;
    text-align: center;
}

.cert-title {
    font-size: 2.5rem;
    font-weight: 800;
    color: #92400e;
    margin-bottom: 30px;
    text-transform: uppercase;
    letter-spacing: 3px;
}

.cert-text {
    font-size: 1.1rem;
    color: #78350f;
    margin-bottom: 16px;
}

.cert-name {
    font-size: 1.8rem;
    font-weight: 700;
    color: #1e293b;
    border-bottom: 2px solid #92400e;
    padding-bottom: 10px;
    margin: 30px 0;
    display: inline-block;
}

.cert-date {
    font-size: 0.9rem;
    color: #92400e;
    margin-top: 30px;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
    z-index: 1000;
    align-items: center;
    justify-content: center;
}

.modal.active {
    display: flex;
}

.modal-content {
    background: var(--card-light);
    padding: 32px;
    border-radius: 20px;
    max-width: 500px;
    width: 90%;
    position: relative;
    animation: slideUp 0.3s ease;
}

body.dark-mode .modal-content {
    background: var(--card-dark);
}

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

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.modal-close {
    position: absolute;
    top: 16px;
    right: 16px;
    width: 32px;
    height: 32px;
    border-radius: 8px;
    border: none;
    background: var(--bg-light);
    cursor: pointer;
    font-size: 1.2rem;
}

body.dark-mode .modal-close {
    background: var(--bg-dark);
    color: var(--text-dark-primary);
}

.modal-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 24px;
    color: var(--primary);
}

.form-group {
    margin-bottom: 16px;
}

.form-label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
}

.form-input,
.form-textarea {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--border-light);
    border-radius: 10px;
    font-size: 1rem;
    transition: all 0.3s;
    background: var(--card-light);
    color: var(--text-primary);
}

body.dark-mode .form-input,
body.dark-mode .form-textarea {
    background: var(--bg-dark);
    border-color: var(--border-dark);
    color: var(--text-dark-primary);
}

.form-input:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--primary);
}

.form-textarea {
    min-height: 120px;
    resize: vertical;
    font-family: inherit;
}

.modal-btns {
    display: flex;
    gap: 12px;
    margin-top: 24px;
}

.modal-btns .btn-primary,
.modal-btns .btn-secondary {
    flex: 1;
}

/* Notification */
.notification {
    position: fixed;
    top: 20px;
    right: 20px;
    padding: 16px 24px;
    border-radius: 12px;
    background: var(--card-light);
    box-shadow: var(--shadow-lg);
    z-index: 2000;
    animation: slideIn 0.3s ease;
    max-width: 400px;
}

body.dark-mode .notification {
    background: var(--card-dark);
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(100px);
    }

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.notification.success {
    border-left: 4px solid var(--success);
}

.notification.warning {
    border-left: 4px solid var(--warning);
}

.notification.error {
    border-left: 4px solid var(--danger);
}

/* Section Title */
.section-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 20px;
    color: var(--text-primary);
}

body.dark-mode .section-title {
    color: var(--text-dark-primary);
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
}

/* Footer */
.footer {
    text-align: center;
    padding: 40px 20px;
    margin-top: 60px;
    border-top: 1px solid var(--border-light);
}

body.dark-mode .footer {
    border-color: var(--border-dark);
}

.footer-quote {
    font-style: italic;
    color: var(--text-secondary);
    margin-bottom: 8px;
    font-size: 1rem;
}

body.dark-mode .footer-quote {
    color: var(--text-dark-secondary);
}

.footer-author {
    font-weight: 600;
    margin-bottom: 24px;
}

.footer-info {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

body.dark-mode .footer-info {
    color: var(--text-dark-secondary);
}

.footer-info p {
    margin-bottom: 4px;
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-secondary);
}

body.dark-mode .empty-state {
    color: var(--text-dark-secondary);
}

.empty-state p {
    font-size: 1rem;
}

/* Responsive */
@media (max-width: 768px) {
    .container {
        padding: 12px;
    }

    .header {
        padding: 24px 20px;
        flex-direction: column;
        text-align: center;
        gap: 16px;
        border-radius: 16px;
    }

    .header-controls {
        width: 100%;
        justify-content: center;
    }

    .header-title h1 {
        font-size: 1.6rem;
    }

    .nav-tabs {
        justify-content: flex-start;
        padding: 6px;
        border-radius: 12px;
    }

    .nav-tab {
        padding: 10px 18px;
        font-size: 0.9rem;
        white-space: nowrap;
    }

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

    .dashboard-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .stat-value {
        font-size: 2rem;
    }

    .section-title {
        font-size: 1.15rem;
    }
}

@media (max-width: 480px) {
    .dashboard-grid {
        grid-template-columns: 1fr;
    }

    .search-box {
        flex-direction: column;
        gap: 8px;
    }

    .result-btns {
        flex-direction: column;
    }

    .stat-card {
        padding: 20px;
    }
}