/* app-home.css — parte 3 del split de styles-professional.css (2026-07-18).
   Utilities/animaciones y módulo Home: welcome, daily goal, 每日汉字, achievements.
   ORDEN DE CARGA OBLIGATORIO: app-base → header-nav → home → practice →
   browse → strokes → quiz → stats → enhancements → dashboard-extras.
   La cascada depende de este orden; no reordenar los <link>. */

/* ============================================================================
   6. UTILITIES & ANIMATIONS
   ============================================================================ */
.tab-panel {
    display: none;
    animation: fadeIn 0.4s ease-out;
}

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

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

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

/* ============================================================================
   7. HOME MODULE
   ============================================================================ */
.home-hero {
    text-align: center;
    padding: 100px 20px;
    background: var(--color-secondary);
    border-radius: var(--radius-lg);
    margin-bottom: 48px;
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-product);
}

.home-hero::before {
    content: "";
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(
        circle,
        rgba(244, 63, 94, 0.1) 0%,
        transparent 50%
    );
    animation: rotate 20s linear infinite;
    pointer-events: none;
}

@keyframes rotate {
    from {
        transform: rotate(0deg);
    }

    to {
        transform: rotate(360deg);
    }
}

.home-hero h2 {
    font-size: var(--text-5xl);
    font-family: var(--font-display);
    letter-spacing: var(--tracking-hero);
    font-weight: 600;
    margin-bottom: 20px;
    color: var(--color-text-on-dark);
    line-height: 1.05;
}

.home-hero p {
    font-size: var(--text-lg);
    font-weight: 400;
    letter-spacing: var(--tracking-normal);
    color: var(--color-text-on-dark);
    max-width: 600px;
    margin: 0 auto 40px;
    opacity: 0.9;
}

.welcome-stats {
    display: flex;
    justify-content: center;
    gap: 40px;
    flex-wrap: wrap;
    position: relative;
}

.welcome-stat {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.welcome-stat .stat-number {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--primary);
    font-family: var(--font-mono);
}

.welcome-stat .stat-label {
    font-size: 0.85rem;
    color: var(--text-dim);
    margin-top: 5px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Feature Cards */
.home-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 25px;
    padding-bottom: 40px;
}

.home-card {
    background: var(--bg-card);
    border: 1px solid var(--color-border);
    border-top: 4px solid transparent;
    border-radius: var(--radius-lg);
    padding: 32px;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    text-align: left;
    cursor: pointer;
    transition:
        transform var(--transition-fast),
        box-shadow var(--transition-fast),
        border-top-color var(--transition-fast);
}

.home-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-border);
    border-top-color: var(--primary);
}

.home-card:hover .home-card-icon {
    font-size: 32px;
    margin-bottom: 20px;
    color: var(--primary);
    background: var(--color-primary-subtle);
    width: 64px;
    height: 64px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    padding: 0;
    transition: transform var(--transition-bounce);
}

.home-card-icon {
    font-size: 32px;
    margin-bottom: 20px;
    color: var(--primary);
    background: var(--color-primary-subtle);
    width: 64px;
    height: 64px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    padding: 0;
    transition: transform var(--transition-bounce);
}

/* Specific override for Chinese characters to ensure they fit */
.home-card-icon.chinese-char {
    width: auto;
    min-width: 64px;
}

.chinese-char {
    font-family: "Noto Sans SC", "Microsoft YaHei", sans-serif;
    font-size: 2.2rem;
    font-weight: 700;
    line-height: 1;
    color: var(--primary);
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.home-card-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 10px;
    color: var(--text-main);
}

.home-card-desc {
    font-size: 0.9rem;
    color: var(--text-dim);
    line-height: 1.5;
}

/* ============================================================================
   7A. DASHBOARD GRID & CARDS
   ============================================================================ */
.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    padding-bottom: 40px;
    margin-top: 10px;
}

.dashboard-card {
    background: var(--bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 24px;
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition-fast) ease, box-shadow var(--transition-fast) ease, border-color var(--transition-fast) ease;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.dashboard-card:hover {
    transform: translateY(-2px);
    border-color: rgba(229, 57, 53, 0.35); /* Subtle red accent border on hover */
    box-shadow: var(--shadow-lg), 0 6px 24px rgba(229, 57, 53, 0.06);
}

/* Welcome Card */
.welcome-card {
    grid-column: span 2;
    background: linear-gradient(135deg, #3a0d0d, #220505); /* Imperial Oxblood Red Gradient */
    border: 1px solid var(--accent);
    color: var(--color-text-on-dark);
    position: relative;
    overflow: hidden;
}

html[data-theme="light"] .welcome-card {
    background: linear-gradient(135deg, #f5ecd8, #e8d0a7); /* Warm cream and soft gold gradient */
    border: 1px solid var(--color-primary);
    color: var(--color-text-charcoal);
}

.welcome-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    position: relative;
    z-index: 2;
}

.welcome-user-info h2 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--accent);
}

html[data-theme="light"] .welcome-user-info h2 {
    color: var(--color-primary);
}

.welcome-user-info p {
    font-size: 1.05rem;
    opacity: 0.85;
}

/* Red Traditional stamp */
.welcome-stamp {
    width: 60px;
    height: 60px;
    border: 3px double #d32f2f;
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #d32f2f;
    font-family: "Noto Sans SC", serif;
    font-size: 1.6rem;
    font-weight: 900;
    transform: rotate(-12deg);
    user-select: none;
    opacity: 0.75;
}

.welcome-stats {
    display: flex;
    gap: 32px;
    margin-top: 24px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 20px;
    position: relative;
    z-index: 2;
}

html[data-theme="light"] .welcome-stats {
    border-top: 1px solid rgba(0, 0, 0, 0.08);
}

.welcome-stat {
    display: flex;
    flex-direction: column;
}

.welcome-stat .stat-number {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--color-text-on-dark);
}

html[data-theme="light"] .welcome-stat .stat-number {
    color: var(--color-primary-hover);
}

.welcome-stat .stat-label {
    font-size: 0.8rem;
    opacity: 0.75;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Card titles */
.dashboard-card .card-title {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--text-main);
    display: flex;
    align-items: center;
    margin-top: 0;
}

/* Continue Learn Card */
.continue-card {
    background: var(--bg-card);
}

.continue-content {
    display: flex;
    flex-direction: column;
    gap: 16px;
    height: 100%;
    justify-content: space-between;
}

.continue-desc {
    font-size: 0.95rem;
    color: var(--text-muted);
    line-height: 1.5;
}

/* Daily Goal Card */
.daily-goal-content {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.goal-numbers {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--text-main);
}

.dashboard-progress-container {
    width: 100%;
    height: 12px;
    background: var(--color-border-subtle);
    border-radius: 6px;
    overflow: hidden;
}

.dashboard-progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--color-success), #10b981);
    border-radius: 6px;
    transition: width 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.goal-feedback {
    font-size: 0.85rem;
    color: var(--text-dim);
}

/* Daily character (每日汉字) with Mi Zi Ge */
.daily-char-card {
    display: flex;
    flex-direction: row;
    gap: 20px;
    align-items: center;
}

.char-mi-zi-ge-container {
    flex-shrink: 0;
}

.char-mi-zi-ge {
    width: 100px;
    height: 100px;
    background: #fff;
    border: 2px solid #8b0000; /* Imperial dark red border */
    border-radius: 4px;
    position: relative;
    box-shadow: 0 4px 10px rgba(0,0,0,0.05);
}

html[data-theme="light"] .char-mi-zi-ge {
    border-color: var(--color-primary);
}

.mi-zi-ge-lines {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(to right, rgba(139, 0, 0, 0.15) 1px, transparent 1px),
        linear-gradient(to bottom, rgba(139, 0, 0, 0.15) 1px, transparent 1px),
        repeating-linear-gradient(45deg, transparent, transparent 4px, rgba(139, 0, 0, 0.1) 4px, rgba(139, 0, 0, 0.1) 5px),
        repeating-linear-gradient(-45deg, transparent, transparent 4px, rgba(139, 0, 0, 0.1) 4px, rgba(139, 0, 0, 0.1) 5px);
    background-position: center;
    background-size: 100% 100%, 100% 100%, 100% 100%, 100% 100%;
}

.mi-zi-ge-lines::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 0;
    width: 100%;
    height: 1px;
    border-top: 1px dashed rgba(139, 0, 0, 0.25);
}

.mi-zi-ge-lines::after {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    width: 1px;
    height: 100%;
    border-left: 1px dashed rgba(139, 0, 0, 0.25);
}

.char-display {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 4rem;
    font-weight: 700;
    color: #1a1a1a;
    font-family: "Noto Sans SC", "Ma Shan Zheng", sans-serif;
    z-index: 2;
}

.char-details {
    display: flex;
    flex-direction: column;
    gap: 6px;
    flex-grow: 1;
}

.char-title {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-dim);
    margin: 0;
}

.char-pinyin-meaning {
    display: flex;
    flex-direction: column;
}

.char-pinyin {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--color-primary);
}

.char-meaning {
    font-size: 0.95rem;
    color: var(--text-main);
}

.char-info-pill {
    display: inline-flex;
    margin-top: 2px;
}

.char-level {
    background: rgba(245, 158, 11, 0.15);
    color: var(--accent);
    padding: 3px 8px;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 600;
}

/* Achievements Widget */
.achievements-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.achievement-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px;
    border-radius: var(--radius-md);
    background: var(--color-bg-hover);
    border: 1px solid var(--color-border-subtle);
    transition: transform var(--transition-fast) ease;
}

.achievement-item:hover {
    transform: translateX(3px);
}

.achievement-icon {
    width: 38px;
    height: 38px;
    background: radial-gradient(circle, var(--accent), #d97706);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    flex-shrink: 0;
}

.achievement-info {
    display: flex;
    flex-direction: column;
}

.achievement-name {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-main);
}

.achievement-desc {
    font-size: 0.75rem;
    color: var(--text-dim);
}

.achievement-item.lock {
    /* Tema oscuro: fondo translúcido oscuro (el gris claro previo arruinaba el
       contraste del texto). El tema claro tiene su propio override abajo. */
    background: rgba(255, 255, 255, 0.04);
}

/* Estado bloqueado: atenuar solo el icono, no el texto (mantener contraste AA) */
.achievement-item.lock .achievement-icon {
    opacity: 0.45;
    filter: grayscale(1);
}

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

/* Responsive adjustments */
@media (max-width: 768px) {
    .home-hero {
        padding: 28px 14px;
        margin-bottom: 20px;
        border-radius: var(--radius-md, 12px);
    }

    .home-hero h2 {
        font-size: clamp(1.5rem, 5.5vw, 2.2rem);
        margin-bottom: 10px;
    }

    .home-hero p {
        font-size: 0.88rem;
        margin-bottom: 20px;
        line-height: 1.45;
    }

    .welcome-stats {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 8px;
        width: 100%;
    }

    .welcome-stat {
        padding: 10px 6px;
        border-radius: 10px;
        background: rgba(255, 255, 255, 0.08);
        text-align: center;
        flex-direction: column;
        align-items: center;
        gap: 4px;
    }

    .welcome-stat .stat-value {
        font-size: 1.3rem;
    }

    .welcome-stat .stat-label {
        font-size: 0.72rem;
    }

    .dashboard-grid {
        grid-template-columns: 1fr;
        gap: 14px;
    }
    
    .welcome-card {
        grid-column: span 1;
        padding: 16px;
    }

    .daily-char-card {
        flex-direction: column;
        align-items: flex-start;
        padding: 16px;
    }

    .welcome-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }

    .welcome-stamp {
        display: none;
    }

    .daily-quests-card,
    .srs-daily-card {
        grid-column: span 1 !important;
    }
}

@media (min-width: 769px) and (max-width: 1024px) {
    .dashboard-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
        padding-bottom: 28px;
    }

    .welcome-card {
        padding: 20px;
    }

    .home-hero {
        padding: 40px 20px;
        margin-bottom: 24px;
    }

    .home-hero h2 {
        font-size: clamp(2rem, 4vw, 2.8rem);
    }
}

.past-exams-note {
    margin-top: 10px;
    margin-bottom: 16px;
    padding: 10px 12px;
    border-radius: 10px;
    border: 1px solid rgba(245, 158, 11, 0.4);
    background: rgba(245, 158, 11, 0.12);
    color: var(--text-muted);
    font-size: 0.9rem;
}

.past-exams-hint {
    margin-top: 8px;
    color: var(--text-muted);
    font-size: 0.92rem;
}

.past-exams-pool-summary {
    margin: 6px 0 14px;
    padding: 8px 12px;
    border-radius: 10px;
    border: 1px solid rgba(59, 130, 246, 0.35);
    background: rgba(59, 130, 246, 0.1);
    color: var(--text-muted);
    font-size: 0.88rem;
}

.quest-share-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 8px;
    padding-top: 12px;
    border-top: 1px dashed var(--border-color, rgba(0, 0, 0, 0.12));
}

.quest-share-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.76rem;
    font-weight: 600;
    padding: 5px 12px;
    border-radius: 8px;
    background: transparent;
    color: var(--color-primary);
    border: 1px solid var(--color-primary);
    cursor: pointer;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.quest-share-btn:hover {
    background: var(--color-primary);
    color: #ffffff;
    transform: translateY(-1px);
    box-shadow: 0 3px 8px rgba(211, 47, 47, 0.25);
}

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