/* ==========================================================================
   Self-Regulation Intervention Simulator
   Rose Amir Pour Portfolio
   ========================================================================== */

/* Variables */
:root {
    --pink: #e8b4b8;
    --pink-light: #f2d0d3;
    --pink-dark: #c9969a;
    --pink-glow: rgba(232, 180, 184, 0.3);
    --bg: #1a1a1a;
    --bg-card: #242424;
    --bg-card-hover: #2a2a2a;
    --text: #f0e8e9;
    --text-muted: rgba(240, 232, 233, 0.6);
    --success: #6bcf8e;
    --decline: #e87c7c;
    --neutral: #b0b0b0;
    --font: 'Cormorant Garamond', serif;
    --radius: 12px;
    --radius-sm: 8px;
    --transition: 0.4s cubic-bezier(0.22, 1, 0.36, 1);
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font);
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
    overflow-x: hidden;
    line-height: 1.6;
}

/* ==========================================================================
   Header
   ========================================================================== */
.sim-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem 2rem;
    background: rgba(26, 26, 26, 0.92);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(232, 180, 184, 0.15);
}

.back-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    color: var(--pink);
    text-decoration: none;
    font-size: 1.1rem;
    transition: var(--transition);
    border: 1px solid rgba(232, 180, 184, 0.2);
}

.back-link:hover {
    background: rgba(232, 180, 184, 0.1);
    border-color: var(--pink);
    transform: translateX(-2px);
}

.header-title {
    font-family: var(--font);
    font-size: 1.25rem;
    font-weight: 400;
    letter-spacing: 0.02em;
    color: var(--pink-light);
}

/* ==========================================================================
   Main & Screens
   ========================================================================== */
.sim-main {
    padding-top: 72px;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.screen {
    display: none;
    width: 100%;
    max-width: 960px;
    margin: 0 auto;
    padding: 2rem;
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.5s ease, transform 0.5s ease;
}

.screen.active {
    display: block;
}

.screen.visible {
    opacity: 1;
    transform: translateY(0);
}

.screen-content {
    text-align: center;
}

.screen-content h2 {
    font-family: var(--font);
    font-size: 2.4rem;
    font-weight: 400;
    color: var(--pink-light);
    margin-bottom: 1rem;
    letter-spacing: -0.01em;
}

/* ==========================================================================
   Welcome Screen
   ========================================================================== */
.welcome-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: rgba(232, 180, 184, 0.1);
    border: 1px solid rgba(232, 180, 184, 0.2);
    font-size: 2rem;
    color: var(--pink);
    animation: pulse-soft 3s ease-in-out infinite;
}

@keyframes pulse-soft {
    0%, 100% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.05); opacity: 0.85; }
}

.welcome-desc {
    font-size: 1.2rem;
    line-height: 1.8;
    color: var(--text);
    max-width: 600px;
    margin: 0 auto 1.5rem;
}

.welcome-note {
    font-size: 0.95rem;
    color: var(--text-muted);
    margin-bottom: 2.5rem;
    font-style: italic;
}

/* ==========================================================================
   Buttons
   ========================================================================== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.9rem 2.2rem;
    font-family: var(--font);
    font-size: 1.15rem;
    font-weight: 500;
    border: none;
    border-radius: var(--radius);
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    letter-spacing: 0.01em;
}

.btn-primary {
    background: var(--pink);
    color: var(--bg);
}

.btn-primary:hover {
    background: var(--pink-light);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px var(--pink-glow);
}

.btn-secondary {
    background: transparent;
    color: var(--pink);
    border: 1px solid rgba(232, 180, 184, 0.3);
}

.btn-secondary:hover {
    background: rgba(232, 180, 184, 0.08);
    border-color: var(--pink);
    transform: translateY(-2px);
}

/* ==========================================================================
   Mood Rating
   ========================================================================== */
.mood-instruction {
    font-size: 1.15rem;
    color: var(--text-muted);
    margin-bottom: 2rem;
}

.ratings-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    margin-bottom: 2.5rem;
}

.rating-block {
    background: var(--bg-card);
    border: 1px solid rgba(232, 180, 184, 0.12);
    border-radius: var(--radius);
    padding: 1.5rem 1rem;
}

.rating-label {
    font-family: var(--font);
    font-size: 1.1rem;
    font-weight: 500;
    color: var(--pink);
    margin-bottom: 0.5rem;
    letter-spacing: 0.02em;
}

.mood-rating {
    margin-bottom: 2.5rem;
}

.mood-emoji {
    font-size: 3.5rem;
    margin-bottom: 0.5rem;
    transition: transform 0.3s ease;
}

.mood-value {
    font-size: 2.5rem;
    font-weight: 600;
    color: var(--pink-light);
    margin-bottom: 1.5rem;
}

.slider-container {
    display: flex;
    align-items: center;
    gap: 1rem;
    max-width: 500px;
    margin: 0 auto;
}

.slider-label-left,
.slider-label-right {
    font-size: 0.8rem;
    color: var(--text-muted);
    white-space: nowrap;
    min-width: 80px;
    flex-shrink: 0;
}

.slider-label-left { text-align: right; }
.slider-label-right { text-align: left; }

/* Custom range slider */
.mood-slider {
    -webkit-appearance: none;
    appearance: none;
    width: 100%;
    height: 6px;
    background: rgba(232, 180, 184, 0.2);
    border-radius: 3px;
    outline: none;
    transition: background 0.3s ease;
}

.mood-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 26px;
    height: 26px;
    border-radius: 50%;
    background: var(--pink);
    cursor: pointer;
    border: 3px solid var(--bg);
    box-shadow: 0 2px 8px var(--pink-glow);
    transition: var(--transition);
}

.mood-slider::-webkit-slider-thumb:hover {
    transform: scale(1.15);
    box-shadow: 0 4px 16px var(--pink-glow);
}

.mood-slider::-moz-range-thumb {
    width: 26px;
    height: 26px;
    border-radius: 50%;
    background: var(--pink);
    cursor: pointer;
    border: 3px solid var(--bg);
    box-shadow: 0 2px 8px var(--pink-glow);
}

/* ==========================================================================
   Intervention Cards
   ========================================================================== */
.select-instruction {
    font-size: 1.15rem;
    color: var(--text-muted);
    margin-bottom: 2rem;
}

.cards-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.2rem;
    margin-bottom: 1rem;
}

.intervention-card {
    background: var(--bg-card);
    border: 1px solid rgba(232, 180, 184, 0.12);
    border-radius: var(--radius);
    padding: 2rem 1.5rem;
    cursor: pointer;
    transition: var(--transition);
    text-align: center;
    font-family: var(--font);
    color: var(--text);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.8rem;
}

.intervention-card:hover {
    transform: translateY(-6px);
    border-color: rgba(232, 180, 184, 0.4);
    box-shadow: 0 12px 32px rgba(232, 180, 184, 0.15);
    background: var(--bg-card-hover);
}

.card-icon {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: rgba(232, 180, 184, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--pink);
    margin-bottom: 0.5rem;
    transition: var(--transition);
}

.intervention-card:hover .card-icon {
    background: rgba(232, 180, 184, 0.2);
    transform: scale(1.08);
}

.intervention-card h3 {
    font-size: 1.35rem;
    font-weight: 500;
    color: var(--pink-light);
}

.intervention-card p {
    font-size: 0.95rem;
    color: var(--text-muted);
    line-height: 1.5;
    flex: 1;
}

.card-duration {
    font-size: 0.85rem;
    color: var(--pink-dark);
    margin-top: 0.5rem;
}

/* ==========================================================================
   Exercise Screens
   ========================================================================== */
.exercise-panel h2 {
    margin-bottom: 0.5rem;
}

.exercise-subtitle {
    font-size: 1.1rem;
    color: var(--text-muted);
    margin-bottom: 2rem;
}

.timer {
    font-size: 2rem;
    font-weight: 300;
    color: var(--pink);
    margin: 1.5rem 0;
    letter-spacing: 0.05em;
    font-variant-numeric: tabular-nums;
}

#btn-finish-early {
    margin-top: 1rem;
}

/* Breathing Exercise */
.breathing-container {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 280px;
}

.breathing-circle {
    width: 140px;
    height: 140px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(242, 208, 211, 0.25), rgba(232, 180, 184, 0.08));
    border: 2px solid rgba(232, 180, 184, 0.4);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: width 4s ease-in-out, height 4s ease-in-out, border-color 4s ease-in-out, background 4s ease-in-out;
}

.breathing-circle.inhale {
    width: 240px;
    height: 240px;
    background: radial-gradient(circle, rgba(242, 208, 211, 0.35), rgba(232, 180, 184, 0.15));
    border-color: rgba(242, 208, 211, 0.6);
}

.breathing-circle.exhale {
    width: 140px;
    height: 140px;
    background: radial-gradient(circle, rgba(242, 208, 211, 0.15), rgba(232, 180, 184, 0.05));
    border-color: rgba(232, 180, 184, 0.3);
}

.breathing-text {
    font-size: 1.2rem;
    font-weight: 400;
    color: var(--pink-light);
    letter-spacing: 0.03em;
    pointer-events: none;
}

/* Mindfulness Exercise */
.mindfulness-container {
    max-width: 500px;
    margin: 0 auto;
    min-height: 200px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2rem;
}

.mindfulness-prompt {
    font-size: 1.6rem;
    font-weight: 400;
    color: var(--pink-light);
    line-height: 1.6;
    min-height: 80px;
    display: flex;
    align-items: center;
    transition: opacity 0.6s ease;
}

.mindfulness-prompt.fading {
    opacity: 0;
}

.mindfulness-progress {
    width: 100%;
    height: 4px;
    background: rgba(232, 180, 184, 0.15);
    border-radius: 2px;
    overflow: hidden;
}

.mindfulness-progress-bar {
    height: 100%;
    width: 0%;
    background: var(--pink);
    border-radius: 2px;
    transition: width 0.5s linear;
}

/* Writing Exercise */
.writing-container {
    max-width: 600px;
    margin: 0 auto;
}

.writing-textarea {
    width: 100%;
    min-height: 250px;
    padding: 1.5rem;
    font-family: var(--font);
    font-size: 1.15rem;
    line-height: 1.8;
    color: var(--text);
    background: var(--bg-card);
    border: 1px solid rgba(232, 180, 184, 0.2);
    border-radius: var(--radius);
    resize: vertical;
    outline: none;
    transition: border-color 0.3s ease;
}

.writing-textarea::placeholder {
    color: var(--text-muted);
}

.writing-textarea:focus {
    border-color: rgba(232, 180, 184, 0.5);
    box-shadow: 0 0 0 3px rgba(232, 180, 184, 0.08);
}

/* Nature Visualization */
.nature-container {
    max-width: 500px;
    margin: 0 auto;
    min-height: 260px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2rem;
}

.nature-scene {
    width: 100%;
    min-height: 200px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 1.5rem;
}

.nature-visual {
    font-size: 3rem;
    transition: opacity 0.6s ease;
}

.nature-prompt {
    font-size: 1.6rem;
    font-weight: 400;
    color: var(--pink-light);
    line-height: 1.6;
    text-align: center;
    transition: opacity 0.6s ease;
}

.nature-prompt.fading,
.nature-visual.fading {
    opacity: 0;
}

/* PMR Status */
.pmr-status {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--pink);
    text-transform: uppercase;
    letter-spacing: 0.12em;
    margin-bottom: 0.5rem;
    transition: opacity 0.4s ease;
}

/* Grounding Exercise */
.grounding-exercise-container {
    max-width: 550px;
    margin: 0 auto;
    min-height: 200px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}

.grounding-count {
    font-size: 4rem;
    font-weight: 700;
    color: var(--pink);
    opacity: 0.7;
    transition: opacity 0.4s ease;
}

.grounding-sense-label {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--pink-dark);
    text-transform: uppercase;
    letter-spacing: 0.15em;
}

.grounding-inputs {
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
    margin-top: 0.5rem;
}

.grounding-input {
    width: 100%;
    padding: 0.7rem 1rem;
    font-family: var(--font);
    font-size: 1rem;
    color: var(--text);
    background: var(--bg-card);
    border: 1px solid rgba(232, 180, 184, 0.2);
    border-radius: var(--radius-sm);
    outline: none;
    transition: border-color 0.3s ease;
}

.grounding-input::placeholder {
    color: var(--text-muted);
}

.grounding-input:focus {
    border-color: rgba(232, 180, 184, 0.5);
}

.grounding-step-info {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-top: 0.5rem;
    font-style: italic;
}

/* ==========================================================================
   Results Screen
   ========================================================================== */
.result-card,
.aggregate-card {
    background: var(--bg-card);
    border: 1px solid rgba(232, 180, 184, 0.12);
    border-radius: var(--radius);
    padding: 2rem;
    margin-bottom: 1.5rem;
    text-align: center;
}

.result-card h3,
.aggregate-card h3 {
    font-size: 1.4rem;
    font-weight: 400;
    color: var(--pink-light);
    margin-bottom: 1rem;
}

.result-intervention {
    font-size: 1rem;
    color: var(--text-muted);
    margin-bottom: 1.5rem;
    text-transform: capitalize;
}

.result-dimensions {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
}

.result-dimension {
    background: rgba(232, 180, 184, 0.04);
    border: 1px solid rgba(232, 180, 184, 0.08);
    border-radius: var(--radius-sm);
    padding: 1rem;
}

.result-dim-label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--pink);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 0.8rem;
}

.result-moods {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 1rem;
}

.result-mood-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.3rem;
}

.result-label {
    font-size: 0.9rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.result-number {
    font-size: 2rem;
    font-weight: 600;
    color: var(--pink-light);
}

.result-arrow {
    font-size: 1.5rem;
    color: var(--text-muted);
}

.result-arrow.improved { color: var(--success); }
.result-arrow.declined { color: var(--decline); }

.result-change {
    font-size: 1.15rem;
    font-weight: 500;
    padding: 0.5rem 1.2rem;
    border-radius: 20px;
    display: inline-block;
}

.result-change.improved {
    color: var(--success);
    background: rgba(107, 207, 142, 0.1);
}

.result-change.declined {
    color: var(--decline);
    background: rgba(232, 124, 124, 0.1);
}

.result-change.neutral {
    color: var(--neutral);
    background: rgba(176, 176, 176, 0.1);
}

/* Aggregate Chart */
.aggregate-note {
    font-size: 0.95rem;
    color: var(--text-muted);
    margin-bottom: 1.5rem;
}

.chart-container {
    max-width: 500px;
    margin: 0 auto;
}

.chart-row {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
}

.chart-label {
    width: 140px;
    text-align: right;
    font-size: 0.95rem;
    color: var(--text-muted);
    flex-shrink: 0;
}

.chart-bar-wrapper {
    flex: 1;
    height: 28px;
    background: rgba(232, 180, 184, 0.08);
    border-radius: 4px;
    overflow: hidden;
    position: relative;
}

.chart-bar {
    height: 100%;
    width: 0%;
    border-radius: 4px;
    transition: width 0.8s cubic-bezier(0.22, 1, 0.36, 1);
    min-width: 0;
}

.chart-bar.positive {
    background: linear-gradient(90deg, rgba(107, 207, 142, 0.6), var(--success));
}

.chart-bar.negative {
    background: linear-gradient(90deg, rgba(232, 124, 124, 0.6), var(--decline));
}

.chart-bar.zero {
    background: rgba(176, 176, 176, 0.3);
    min-width: 2px;
}

.chart-value {
    width: 50px;
    text-align: left;
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text);
    flex-shrink: 0;
    font-variant-numeric: tabular-nums;
}

.session-count {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-top: 1rem;
    font-style: italic;
}

.results-actions {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    margin-top: 2rem;
    flex-wrap: wrap;
}

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (max-width: 768px) {
    .sim-header {
        padding: 0.8rem 1rem;
    }

    .header-title {
        font-size: 1rem;
    }

    .screen {
        padding: 1.5rem 1rem;
    }

    .screen-content h2 {
        font-size: 1.8rem;
    }

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

    .intervention-card {
        padding: 1.5rem;
    }

    .welcome-desc {
        font-size: 1.05rem;
    }

    .mood-emoji {
        font-size: 2.8rem;
    }

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

    .breathing-container {
        height: 220px;
    }

    .breathing-circle {
        width: 120px;
        height: 120px;
    }

    .breathing-circle.inhale {
        width: 200px;
        height: 200px;
    }

    .breathing-circle.exhale {
        width: 120px;
        height: 120px;
    }

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

    .result-dimensions {
        grid-template-columns: 1fr;
    }

    .result-moods {
        gap: 1rem;
    }

    .result-number {
        font-size: 2.2rem;
    }

    .chart-label {
        width: 100px;
        font-size: 0.85rem;
    }

    .chart-value {
        width: 40px;
        font-size: 0.85rem;
    }

    .results-actions {
        flex-direction: column;
    }

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

@media (max-width: 480px) {
    .screen-content h2 {
        font-size: 1.5rem;
    }

    .slider-container {
        flex-direction: column;
        gap: 0.5rem;
    }

    .slider-label-left,
    .slider-label-right {
        text-align: center;
    }

    .mindfulness-prompt {
        font-size: 1.3rem;
    }

    .writing-textarea {
        min-height: 200px;
        font-size: 1rem;
    }
}