/* ═══════════════════════════════════════════════════════
   SHARED — Etyma
   Usado por: index.html (landing) y app.html (app)
   ═══════════════════════════════════════════════════════ */

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

:root {
    --bg: #0D0D0C;
    --surface: #131312;
    --surface-2: #1A1A18;
    --surface-3: #222220;
    --ink: #F0EDE8;
    --ink-2: #C8C4BC;
    --ink-3: #bbbaba;
    --ink-4: #adadaa;
    --accent: #b18320;
    --accent-2: #ca921a;
    --accent-dim: rgba(192, 64, 42, 0.12);
    --border: #242420;
    --border-2: #2E2E2A;
    --shadow: 0 1px 2px rgba(0, 0, 0, .4), 0 4px 16px rgba(0, 0, 0, .25);
    --shadow-lg: 0 24px 80px rgba(0, 0, 0, .6);
    --radius: 9px;
    --radius-pill: 20px;

    /* ── Semantic ── */
    --success: #5AB46A;
    --danger: #E07060;
    --warning: #CA921A;

    /* ── Type families ── */
    --font-sans: 'Montserrat', system-ui, sans-serif;
    --font-serif: 'Cormorant Garamond', 'Times New Roman', serif;
    --font-mono: 'JetBrains Mono', ui-monospace, monospace;

    /* ── Type scale ── */
    --text-xs: 11px;
    --text-sm: 13px;
    --text-base: 15px;
    --text-md: 17px;
    --text-lg: 20px;
    --text-xl: 23px;
    --text-2xl: 30px;
    --text-3xl: 40px;
    --text-display: 54px;

    /* ── Spacing scale ── */
    --space-1: 4px;
    --space-2: 6px;
    --space-3: 10px;
    --space-4: 14px;
    --space-5: 18px;
    --space-6: 22px;
    --space-7: 28px;
    --space-8: 40px;

    /* ── Tracking ── */
    --tracking-tight: -0.5px;
    --tracking-normal: 0;
    --tracking-wide: 0.3px;
    --tracking-label: 0.8px;
    --tracking-mega: 2px;

    /* ── Leading ── */
    --leading-tight: 1.1;
    --leading-snug: 1.5;
    --leading-body: 1.78;
    --leading-prose: 1.82;

    /* ── Motion ── */
    --ease-snappy: cubic-bezier(.4, 0, .2, 1);
    --t-fast: 0.15s;
    --t-base: 0.18s;
    --t-slow: 0.28s;

    /* ── Z-index ── */
    --z-popover: 50;
    --z-overlay: 60;
    --z-modal: 80;
}

::selection {
    background: rgba(192, 64, 42, 0.3);
    color: var(--ink);
}

html {
    overflow-x: hidden;
    max-width: 100%;
}

body {
    background: var(--bg);
    color: var(--ink);
    font-family: 'Montserrat', sans-serif;
    font-weight: 300;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
    max-width: 100%;
}

.main-content {
    flex: 1;
    min-height: calc(100vh - 64px);
}

input::placeholder {
    font-family: 'Montserrat', sans-serif;
    color: var(--ink-4);
}

.logo-mark {
    width: auto;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
}



/* ─── APP HEADER (nueva estructura) ─── */

.app-header {
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    padding: 0 var(--space-7);
    height: 64px;
    position: sticky;
    top: 0;
    z-index: var(--z-overlay);
}

.app-header__inner {
    max-width: 1060px;
    margin: 0 auto;
    height: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--space-7);
}

.app-header__brand {
    display: flex;
    align-items: center;
    flex-shrink: 0;
}


.app-header__actions {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    flex-shrink: 0;
}


.close-btn {
    background: transparent;
    border: none;
    color: var(--ink-3);
    font-size: 16px;
    cursor: pointer;
    padding: 4px 8px;
    transition: all 0.15s;
}

.close-btn:hover {
    background: var(--surface-2);
    color: var(--ink);
}




/* ─── SEARCH AREA ─── */

.search-area {
    max-width: 850px;
    margin: 0 auto;
    padding: 32px 20px 0;
}

.search-box {
    display: flex;
    flex-direction: column;
    gap: 0;
}

.input-row {
    display: flex;
    align-items: center;
    gap: 10px;
    background: var(--surface);
    padding: 6px 6px 6px 18px;
    border: 1px solid var(--border-2);
    transition: border-color var(--t-base) var(--ease-snappy);
}

.input-row:focus-within {
    border-color: var(--ink-4);
}

.input-icon {
    font-size: 16px;
    opacity: 0.4;
    flex-shrink: 0;
    display: flex;
    align-items: center;
}

.main-input {
    flex: 1;
    background: transparent;
    border: none;
    outline: none;
    color: var(--ink);
    font-size: 18px;
    font-family: 'Montserrat', sans-serif;
    font-weight: 400;
    padding: 11px 4px;
}

a {
    text-decoration: none;
}

.search-btn {
    font-family: var(--font-sans);
    background: var(--accent);
    color: #0D0D0C;
    border: none;
    padding: 11px 22px;
    font-size: var(--text-sm);
    font-weight: 600;
    letter-spacing: var(--tracking-wide);
    cursor: pointer;
    transition: background var(--t-base) var(--ease-snappy);
    flex-shrink: 0;

}

.search-btn:hover {
    background: var(--accent-2);
}

.search-btn:disabled {
    opacity: 0.45;
    cursor: not-allowed;
}

.input-icon svg {
    width: 16px;
    height: 16px;
    stroke: var(--ink);
    display: block;
}

/* ─── RESULTS ─── */

.results-area {
    max-width: 980px;
    margin: 0 auto;
    padding: 28px 20px 60px;
}

/* ─── WORD HERO ─── */

.word-hero {
    border-left: 3px solid var(--accent);
    padding: 28px 32px 28px calc(32px - 3px);
    margin-bottom: var(--space-5);
    background: var(--surface);
    border-top: 1px solid var(--border);
    border-right: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

.word-hero__main {
    display: grid;
    grid-template-columns: 1fr 170px;
    gap: var(--space-7);
    align-items: flex-start;
}

.word-hero__left {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.word-hero__title-row {
    display: flex;
    align-items: baseline;
    gap: var(--space-5);
    flex-wrap: wrap;
}

.word-hero__chips {
    display: flex;
    gap: var(--space-2);
    flex-wrap: wrap;
    margin-top: var(--space-1);
}

.hero-chip {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    border: 1px solid var(--border-2);
    padding: 4px 12px;
    font-size: var(--text-sm);
    color: var(--ink-3);
    background: transparent;
}

.hero-chip--accent {
    border-color: var(--accent);
    background: rgba(177, 131, 32, 0.06);
    color: var(--ink);
}

.hero-chip__label {
    font-size: var(--text-xs);
    font-weight: 700;
    color: var(--accent-2);
    letter-spacing: var(--tracking-label);
    text-transform: uppercase;
}

.word-hero__right {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: var(--space-3);
    flex-shrink: 0;
    width: 170px;
}

.btn-save-deck {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    background: transparent;
    color: var(--ink-3);
    border: 1px solid var(--border-2);
    padding: 10px 18px;
    font-family: var(--font-sans);
    font-size: var(--text-sm);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--t-base) var(--ease-snappy);
    white-space: nowrap;
    min-width: 162px;
}

.btn-save-deck:hover {
    background: var(--surface-3);
    border-color: var(--ink-4);
    color: var(--ink);
}

.btn-save-deck--saved {
    background: transparent;
    color: var(--ink-3);
    border: 1px solid var(--border-2);
}

.btn-save-deck--saved:hover {
    background: var(--surface-3);
    border-color: var(--ink-4);
    color: var(--ink);
}

.word-hero__secondary {
    display: flex;
    gap: var(--space-2);
}

.word-hero__icon-btn {
    background: transparent;
    border: 1px solid var(--border-2);
    color: var(--ink-4);
    padding: 7px 9px;
    cursor: pointer;
    display: flex;
    align-items: center;
    transition: all var(--t-base) var(--ease-snappy);
}

.word-hero__icon-btn:hover {
    background: var(--surface-2);
    color: var(--ink-2);
    border-color: var(--border-2);
}

/* ─── WORD GRID ─── */

.word-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--space-3);
}

.analysis-card {
    background: var(--surface);
    border: 1px solid var(--border);
    padding: 20px 22px;
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
    height: 220px;
    overflow: hidden;
    opacity: 0;
    transform: translateY(8px);
    animation: fadeInUp 0.25s ease-out forwards;
    transition: border-color var(--t-base) var(--ease-snappy);
}

.analysis-card:hover {
    border-color: var(--border-2);
}

.analysis-card__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    cursor: pointer;
    flex-shrink: 0;
}

.analysis-card__meta {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.analysis-card__eyebrow {
    font-family: var(--font-mono);
    font-size: var(--text-xs);
    color: var(--accent);
    letter-spacing: var(--tracking-wide);
}

.analysis-card__eyebrow-sep,
.analysis-card__eyebrow-label {
    display: none;
    font-family: var(--font-mono);
    font-size: var(--text-xs);
    color: var(--ink-3);
    letter-spacing: var(--tracking-wide);
}

.analysis-card__icon {
    width: 14px;
    height: 14px;
    color: var(--ink-4);
}

.analysis-card__expand {
    width: 13px;
    height: 13px;
    color: var(--accent);
    opacity: 0.6;
    transition: opacity var(--t-base), transform var(--t-base) var(--ease-snappy);
    flex-shrink: 0;
}

.analysis-card:hover .analysis-card__expand {
    opacity: 1;
}

.analysis-card__title {
    font-family: var(--font-sans);
    font-size: var(--text-base);
    font-weight: 600;
    color: var(--ink);
    letter-spacing: 0.1px;
    flex-shrink: 0;
}

.analysis-card__body {
    font-size: var(--text-sm);
    line-height: var(--leading-body);
    color: var(--ink-2);
    font-weight: 300;
    overflow: hidden;
    position: relative;
    flex: 1;
    min-height: 0;
}

/* Gradiente que difumina el texto — señal de "hay más" */
.analysis-card__body::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 72px;
    background: linear-gradient(to bottom, transparent, #131312);
    pointer-events: none;
}

/* ── Estado expandido ── */

.analysis-card--expanded {
    order: -1;
    grid-column: 1 / -1;
    height: auto;
    overflow: visible;
    border-color: var(--border-2);
    animation: expandCard 0.50s var(--ease-snappy) forwards;
    cursor: default;
}

.analysis-card--expanded .analysis-card__body {
    overflow: visible;
    flex: unset;
}

.analysis-card--expanded .analysis-card__body::after {
    display: none;
}

.analysis-card--expanded .analysis-card__eyebrow-sep,
.analysis-card--expanded .analysis-card__eyebrow-label {
    display: inline;
}

.analysis-card--expanded .analysis-card__icon {
    display: none;
}

.analysis-card--expanded .analysis-card__title {
    display: none;
}

.analysis-card--expanded .analysis-card__expand {
    opacity: 1;
    transform: rotate(45deg);
}

@keyframes expandCard {
    from {
        opacity: 0.6;
        transform: translateY(-6px) scale(0.998);
    }

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

@keyframes modeSlideInRight {
    from {
        opacity: 0;
        transform: translateX(32px);
    }

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

@keyframes modeSlideInLeft {
    from {
        opacity: 0;
        transform: translateX(-32px);
    }

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

.mode-enter-right {
    animation: modeSlideInRight 0.50s var(--ease-snappy) both;
}

.mode-enter-left {
    animation: modeSlideInLeft 0.50s var(--ease-snappy) both;
}

.word-title {
    font-family: 'Montserrat', sans-serif;
    font-size: 54px;
    font-weight: 700;
    color: var(--ink);
    line-height: 1;
    letter-spacing: -0.5px;
}

.ipa {
    font-family: 'JetBrains Mono', monospace;
    font-size: 15px;
    color: var(--ink-3);
    background: var(--surface-2);
    padding: 4px 11px;
    border: 1px solid var(--border-2);
}

.pronun {
    margin-top: 10px;
    font-size: 14px;
    color: var(--ink-3);
}

.pronun-label {
    color: var(--ink-4);
    font-weight: 500;
}

.body-text {
    font-size: 16px;
    line-height: 1.82;
    color: var(--ink-2);
    font-weight: 300;
    white-space: pre-wrap;
}

/* ─── FOOTER ─── */

.footer {
    margin-top: auto;
    /* ← empuja el footer siempre al fondo */
    text-align: center;
    padding: 28px 20px;
    font-size: 13px;
    color: var(--ink-4);
    letter-spacing: 0.3px;
    border-top: 1px solid var(--border);
}


/* ─── Rich text ─── */

.rt-heading {
    font-size: 14px;
    font-weight: 600;
    color: var(--ink);
    margin: 18px 0 6px;
    letter-spacing: 0.2px;
}

.rt-heading:first-child {
    margin-top: 0;
}

.rt-list {
    margin: 6px 0 14px 20px;
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.rt-list li {
    font-size: 15px;
    line-height: 1.7;
    color: var(--ink-2);
    font-weight: 300;
}

.rt-list li strong {
    color: var(--ink);
    font-weight: 600;
}

/* ─── KEYBOARD TOGGLE BUTTON ─── */
.keyboard-toggle-btn {
    display: flex;
    align-items: center;
    gap: 6px;
    background: transparent;
    border: 1px solid var(--border-2);
    color: var(--ink-4);
    font-family: 'Montserrat', sans-serif;
    font-size: 13px;
    font-weight: 500;
    letter-spacing: 0.5px;
    padding: 6px 10px;
    cursor: pointer;
    transition: all 0.16s;
    flex-shrink: 0;
}

.keyboard-toggle-btn:hover {
    background: var(--surface-2);
    border-color: var(--ink-4);
    color: var(--ink-2);
}

.keyboard-toggle-btn.active {
    background: var(--accent-dim);
    border-color: var(--accent);
    color: var(--accent-2);
}


@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(12px);
    }

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

/* ─── Botón Comenzar sesión ─── */
.start-session-btn {
    background: var(--accent);
    border: none;
    color: #0D0D0C;
    font-family: 'Montserrat', sans-serif;
    font-size: 15px;
    font-weight: 600;
    padding: 16px 32px;
    cursor: pointer;
    letter-spacing: 0.3px;
    transition: background 0.18s, transform 0.12s;
    align-self: flex-start;
}

.start-session-btn:hover {
    background: var(--accent-2);
    transform: translateY(-1px);
}

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


/* ═══════════════════════════════════════════════════════
   RESPONSIVE SHARED
   ═══════════════════════════════════════════════════════ */

@media (max-width: 768px) {
    .word-hero__main {
        grid-template-columns: 1fr;
    }

    .word-hero__right {
        align-items: flex-start;
        flex-direction: row;
        flex-wrap: wrap;
    }

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

@media (max-width: 600px) {
    .logo-mark {
        width: auto;
        height: 30px;
    }

    .keyboard-toggle-btn span {
        display: none;
    }

    .input-row {
        flex-wrap: wrap;
        padding: 6px 8px 6px 14px;
    }

    .main-input {
        flex: 1 1 100%;
        order: -1;
    }

    .keyboard-toggle-btn {
        flex: 0 0 auto;
    }

    .search-btn {
        flex: 1;
        text-align: center;
    }

    .word-title {
        font-size: 40px;
        overflow-wrap: break-word;
        word-break: break-word;
    }

    .start-session-btn {
        align-self: stretch;
        text-align: center;
    }
}

@media (max-width: 400px) {
    .logo-mark {
        width: auto;
        height: 20px;
    }

    .main-input {
        font-size: 15px;
    }
}