/* =====================================================================
   CMI LifeTech — Unified Responsive Design Suite
   Optimized for: Desktop, Notebook, Laptop, Tablet, Mobile (Portrait & Landscape)
   ===================================================================== */

/* ── 1. Universal Responsive Primitives ──────────────────── */
img, svg, video {
    max-width: 100%;
    height: auto;
}
canvas {
    max-width: 100%;
}
#constellationCanvas,
#particles-canvas {
    height: 100%;
}

/* Ensure touch targets meet WCAG 2.2 AA standards (min 44px on touch devices) */
@media (pointer: coarse) {
    .btn-holy, .nt, .pillar-chip, .lex-chip, .lex-toggle-btn, .lang-btn, .modal-close-btn,
    .btn-pray-for, .pronounce-btn, .word-mastery-badge, .footer-disclaimer-link,
    .setup-radio-card, .audio-toggle-btn, .audio-stop-btn {
        min-height: 44px;
    }
    .pronounce-btn {
        width: 44px;
        height: 44px;
    }
    .soul-range {
        height: 10px;
    }
    .soul-range::-webkit-slider-thumb {
        width: 26px;
        height: 26px;
    }
    .soul-range::-moz-range-thumb {
        width: 26px;
        height: 26px;
    }
}

/* ── 2. Large Screens & Desktops (>= 1200px) ──────────────── */
@media screen and (min-width: 1200px) {
    .app-container {
        max-width: 1240px;
        padding: 24px 30px 140px 30px;
    }
    .sliders-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    .pillars-grid {
        grid-template-columns: repeat(6, 1fr);
    }
    .lexicon-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    .eternity-cards-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    .active-covenant-dashboard {
        grid-template-columns: 1fr 1fr;
    }
    .prayer-feed-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* ── 3. Laptops & Notebooks (992px to 1199px) ────────────── */
@media screen and (min-width: 992px) and (max-width: 1199px) {
    .app-container {
        max-width: 980px;
        padding: 20px 24px 130px 24px;
    }
    .sliders-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .pillars-grid {
        grid-template-columns: repeat(4, 1fr);
    }
    .lexicon-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .eternity-cards-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .active-covenant-dashboard {
        grid-template-columns: 1fr 1fr;
    }
    .prayer-feed-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* ── 4. Tablets (768px to 991px) ─────────────────────────── */
@media screen and (min-width: 768px) and (max-width: 991px) {
    .app-container {
        max-width: 100%;
        padding: 16px 20px 130px 20px;
    }
    .header-logo {
        width: 72px;
        height: 72px;
    }
    .main-title {
        font-size: clamp(2.2rem, 5vw, 3.2rem);
    }
    .nav-container {
        max-width: 98%;
        padding: 6px 8px;
    }
    .nt {
        padding: 8px 12px;
        font-size: 0.88rem;
    }
    .sliders-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 14px;
    }
    .pillars-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: 8px;
    }
    .rpg-hero-card {
        padding: 22px;
        gap: 20px;
    }
    .soul-stat-bars-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .lexicon-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }
    .eternity-cards-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }
    .active-covenant-dashboard {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    .prayer-feed-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }
    .flashcard-arena {
        max-width: 540px;
        height: 330px;
    }
}

/* ── 5. Mobile Phones & Small Handhelds (< 768px) ─────────── */
@media screen and (max-width: 767px) {
    html {
        font-size: 15px;
    }
    .app-container {
        width: 100%;
        padding: 10px 14px 140px 14px;
    }

    /* Header & Navigation */
    .app-header {
        margin-top: 10px;
        margin-bottom: 18px;
    }
    .header-logo {
        width: 62px;
        height: 62px;
    }
    .main-title {
        font-size: clamp(1.8rem, 7.5vw, 2.5rem);
    }
    .sub-title {
        font-size: 0.72rem;
        letter-spacing: 0.15em;
        line-height: 1.4;
        padding: 0 10px;
    }

    /* Top Utility Actions */
    .top-utility-bar {
        flex-wrap: wrap;
        gap: 6px;
        justify-content: center;
        margin-top: 10px;
    }
    .lang-btn {
        padding: 5px 10px;
        font-size: 0.78rem;
    }

    /* 5-Pillar Navigation Bar */
    nav.main-nav {
        top: 8px;
        margin-bottom: 20px;
        width: 100%;
    }
    .nav-container {
        width: 100%;
        border-radius: var(--radius-full);
        padding: 5px 6px;
        justify-content: flex-start;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }
    .nav-wrap {
        gap: 4px;
        width: max-content;
    }
    .nt {
        padding: 7px 11px;
        font-size: 0.8rem;
        gap: 5px;
        flex-shrink: 0;
    }
    .nt i {
        font-size: 0.85rem;
    }
    .nav-sep {
        display: none;
    }

    /* Panel 1: 生命聖所 (Sanctum) */
    .soul-dimensions-wrap {
        padding: 18px 14px;
        margin-bottom: 20px;
    }
    .dimension-section-title {
        font-size: 1.1rem;
        margin-bottom: 14px;
    }
    .sliders-grid {
        grid-template-columns: 1fr;
        gap: 12px;
    }
    .soul-slider-card {
        padding: 12px 14px;
    }
    .pillars-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 8px;
        margin-top: 10px;
        margin-bottom: 20px;
    }
    .pillar-chip {
        padding: 8px 6px;
        font-size: 0.82rem;
    }
    .pillar-chip i {
        font-size: 1rem;
    }
    .manna-illuminated-card {
        padding: 22px 16px;
        margin-bottom: 20px;
    }
    .manna-drop-cap {
        font-size: 3rem;
        line-height: 0.88;
        margin-right: 8px;
    }
    .manna-scripture-quote {
        font-size: 1.15rem;
        line-height: 1.65;
    }
    .manna-reference {
        font-size: 0.95rem;
    }
    .manna-box-title {
        font-size: 1rem;
    }
    .manna-box-content {
        font-size: 0.92rem;
        line-height: 1.7;
    }
    .manna-actions {
        flex-direction: column;
        width: 100%;
        gap: 10px;
    }
    .manna-actions .btn-holy {
        width: 100%;
        justify-content: center;
        padding: 12px 18px;
        font-size: 0.95rem;
    }
    .exegesis-box {
        padding: 16px 14px;
    }
    .exegesis-title {
        font-size: 1.05rem;
    }
    .exegesis-text {
        font-size: 0.92rem;
        line-height: 1.75;
    }

    /* Panel 2: 永恆之約 (Eternity & RPG) */
    .rpg-hero-card {
        flex-direction: column;
        align-items: center;
        text-align: center;
        padding: 20px 14px;
        gap: 16px;
    }
    .mandala-visualizer-container {
        width: 125px;
        height: 125px;
    }
    .rpg-stats-overview {
        width: 100%;
        min-width: 0;
    }
    .rpg-title-row {
        flex-direction: column;
        align-items: center;
        gap: 4px;
    }
    .rpg-role-title {
        font-size: 1.2rem;
    }
    .soul-stat-bars-grid {
        grid-template-columns: 1fr;
        gap: 8px;
    }
    .eternity-cards-grid {
        grid-template-columns: 1fr;
        gap: 14px;
    }
    .eternity-journal-card {
        padding: 18px 14px;
    }

    /* Panel 3: 聖言學堂 (Lexicon Treasury) */
    .lexicon-header-wrap {
        flex-direction: column;
        align-items: stretch;
        gap: 12px;
    }
    .lexicon-summary-card {
        padding: 16px 10px;
        gap: 10px;
    }
    .lexicon-stat-number {
        font-size: 1.65rem;
    }
    .lexicon-stat-label {
        font-size: 0.72rem;
    }
    .lexicon-controls {
        flex-direction: column;
        align-items: stretch;
        gap: 10px;
    }
    .lexicon-search-input {
        width: 100%;
        min-width: 0;
    }
    .lexicon-filter-chips {
        width: 100%;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        flex-wrap: nowrap;
        padding-bottom: 6px;
    }
    .lex-chip {
        flex-shrink: 0;
        padding: 6px 12px;
        font-size: 0.8rem;
    }
    .lexicon-grid {
        grid-template-columns: 1fr;
        gap: 14px;
    }
    .lex-card {
        padding: 18px 14px;
    }
    .lex-script {
        font-size: 2.1rem;
    }
    .flashcard-arena {
        width: 100%;
        max-width: 100%;
        height: 310px;
    }
    .flashcard-face {
        padding: 24px 16px;
    }
    .flashcard-script {
        font-size: 2.3rem;
    }
    .flashcard-nav-controls {
        gap: 10px;
    }
    .flashcard-nav-controls .btn-holy {
        padding: 8px 14px;
        font-size: 0.85rem;
    }

    /* Panel 4: 同路尋道 (Companions) */
    .setup-box {
        padding: 18px 14px;
    }
    .setup-title {
        font-size: 1.2rem;
    }
    .constellation-wrapper {
        height: 180px;
    }
    .seeker-card-grid {
        grid-template-columns: 1fr;
        gap: 14px;
    }
    .active-covenant-dashboard {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    .tree-svg-wrap {
        max-width: 180px;
        margin: 0 auto;
    }
    .buddy-chat-box {
        padding: 16px 12px;
    }
    .chat-messages {
        max-height: 200px;
    }
    .synced-breathing-panel {
        padding: 22px 14px;
    }
    .breathing-orb {
        width: 120px;
        height: 120px;
        font-size: 0.95rem;
    }

    /* Panel 5: 祈禱聖壇 (Altar & Candles) */
    .candle-altar-hero {
        padding: 18px 10px;
    }
    .candle-rack {
        gap: 6px;
        min-height: 100px;
        padding: 10px 0;
        justify-content: center;
    }
    .altar-candle {
        width: 20px;
        height: 56px;
        border-radius: 3px 3px 2px 2px;
    }
    .candle-wick {
        width: 2px;
        height: 6px;
        top: -6px;
    }
    .candle-flame {
        width: 10px;
        height: 16px;
        top: -18px;
    }
    .prayer-post-box {
        padding: 18px 14px;
    }
    .prayer-feed-grid {
        grid-template-columns: 1fr;
        gap: 14px;
    }
    .prayer-card {
        padding: 18px 14px;
    }

    /* Floating Audio Deck on Mobile */
    .audio-floating-deck {
        bottom: 10px;
        left: 10px;
        right: 10px;
        max-width: calc(100vw - 20px);
        padding: 6px 10px;
        justify-content: space-between;
    }
    .audio-volume-wrap {
        display: none; /* Hardware volume buttons used on mobile */
    }
    .audio-track-choice {
        font-size: 0.82rem;
        padding: 8px 10px;
    }
    .audio-track-sub {
        font-size: 0.62rem;
    }
    .audio-toggle-btn, .audio-stop-btn {
        padding: 8px 12px !important;
        font-size: 0.78rem !important;
        min-height: 44px;
        height: 44px;
    }

    .bible-study-invite {
        margin-top: 28px;
        padding: 0;
    }
    .bible-study-invite-inner {
        padding: 26px 16px 24px;
    }
    .bible-study-join-btn {
        width: 100%;
        justify-content: center;
    }

    /* Modal Foundation */
    .holy-modal-overlay {
        padding: 12px;
    }
    .holy-modal-box {
        padding: 22px 16px;
        max-height: 90vh;
    }
    .modal-close-btn {
        top: 12px;
        right: 12px;
        font-size: 1.3rem;
    }

    /* Soft Toast on Mobile */
    #soft-toast-container {
        bottom: 65px;
        right: 12px;
        left: 12px;
    }
    .soft-toast {
        max-width: 100%;
        width: 100%;
        padding: 10px 16px;
        font-size: 0.88rem;
    }
}

/* ── 6. Ultra-Compact Mobile Screens (<= 360px) ──────────── */
@media screen and (max-width: 360px) {
    .header-logo {
        width: 52px;
        height: 52px;
    }
    .main-title {
        font-size: 1.65rem;
    }
    .nt {
        padding: 6px 9px;
        font-size: 0.75rem;
    }
    .candle-rack {
        gap: 4px;
    }
    .altar-candle {
        width: 18px;
        height: 50px;
    }
    .audio-track-sub {
        display: none;
    }
    .audio-visualizer-bars {
        display: none;
    }
}