/* ==============================
   WORKOUT GENERATION MODAL
   ============================== */

/* Modal Overlay */
.workout-gen-modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    /* Leave footer nav clickable by stopping at its height */
    height: calc(100vh - (67.2px + env(safe-area-inset-bottom, 0px)));
    background: var(--color-modal-backdrop);
    z-index: var(--z-modal-backdrop);
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-normal), visibility var(--transition-normal);
    cursor: pointer;
    pointer-events: none;
}

.workout-gen-modal-overlay.active {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
}

/* Main Modal Container */
.workout-gen-modal {
    position: fixed;
    left: 0;
    width: 100vw;
    height: 80vh;
    background-color: var(--bg-secondary);
    border-radius: var(--radius-standard);
    padding: var(--space-lg);
    box-sizing: border-box;
    overflow: hidden;
    z-index: var(--z-modal);
    transform: translateY(100vh);
    transition: transform var(--transition-normal), height var(--transition-normal);
    /* Sit above the footer nav (67px) plus safe area */
    bottom: calc(67px + env(safe-area-inset-bottom, 0px));
    font-family: var(--font-primary);
    cursor: default;
    display: flex;
    flex-direction: column;
}

.workout-gen-modal.active {
    transform: translateY(0);
}

/* Collapsed State - Only show progress header */
.workout-gen-modal.collapsed {
    height: 67.2px;
    padding: var(--space-md) var(--space-lg);
    cursor: pointer;
}

.workout-gen-modal.collapsed .workout-gen-trivia-section,
.workout-gen-modal.collapsed .workout-gen-results-section {
    display: none !important;
}

/* ==============================
   PROGRESS HEADER
   ============================== */

.workout-gen-progress-header {
    display: grid;
    grid-template-columns: 40px 1fr 40px;
    align-items: center;
    column-gap: var(--space-md);
    min-height: 35px;
}

.workout-gen-modal.collapsed .workout-gen-progress-header {
    margin-bottom: 0;
    justify-content: center;
}

.workout-gen-progress-center {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-md);
    width: 100%;
}

.workout-gen-dismiss-btn {
    width: 40px;
    height: 40px;
    border: none;
    background: transparent;
    color: var(--text-primary);
    font-size: var(--text-xl);
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-fast), transform var(--transition-fast);
}

.workout-gen-dismiss-btn.visible {
    opacity: 0.9;
    pointer-events: auto;
}

.workout-gen-dismiss-btn:active {
    transform: scale(0.96);
}

.workout-gen-progress-bar {
    width: 100%;
    max-width: 520px;
    height: 8px;
    background-color: var(--color-border-strong);
    border-radius: var(--radius-standard);
    overflow: hidden;
    position: relative;
}

.workout-gen-progress-fill {
    height: 100%;
    background: var(--text-primary);
    border-radius: var(--radius-standard);
    width: 0%;
    transition: width var(--transition-normal);
}

.workout-gen-progress-text {
    font-family: var(--font-primary);
    font-weight: 600;
    font-size: var(--text-base);
    color: var(--text-primary);
    text-align: center;
    display: none;
    opacity: 0;
    transition: opacity var(--transition-slow);
}

.workout-gen-progress-text.visible {
    display: block;
    opacity: 1;
}

/* ==============================
   TRIVIA TOGGLE
   ============================== */

.workout-gen-trivia-toggle {
    width: 40px;
    height: 40px;
    border: none;
    background: transparent;
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: transform var(--transition-fast);
    z-index: var(--z-base);
}

.workout-gen-trivia-toggle:active {
    transform: scale(0.98);
}

.workout-gen-trivia-toggle-icon {
    width: 24px;
    height: 24px;
    opacity: 0.9;
}

/* ==============================
   TRIVIA SECTION
   ============================== */

.workout-gen-trivia-section {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-xl) var(--space-md);
    transition: opacity var(--transition-normal);
}

.workout-gen-trivia-section.hidden {
    opacity: 0;
    pointer-events: none;
}

.workout-gen-trivia-content {
    width: 100%;
    max-width: 640px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-lg);
    opacity: 1;
    transition: opacity var(--transition-normal);
}

.workout-gen-trivia-content.is-fading {
    opacity: 0;
}

.workout-gen-trivia-question {
    font-family: var(--font-primary);
    font-weight: 400;
    font-size: var(--text-xl);
    color: var(--text-muted);
    text-align: center;
    line-height: 1.6;
    max-width: 600px;
    min-height: 96px;
    display: flex;
    align-items: center;
    margin: 0;
}

.workout-gen-trivia-options {
    width: 100%;
    max-width: 520px;
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.workout-gen-trivia-options.is-true-false {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--space-md);
}

.workout-gen-trivia-option {
    min-height: 52px;
    height: auto;
    padding: var(--space-md);
    border-radius: var(--radius-pill);
    background: var(--bg-tertiary);
    color: var(--text-primary);
    cursor: pointer;
    white-space: normal;
    overflow-wrap: anywhere;
    font-family: var(--font-primary);
    font-size: var(--text-sm);
    font-weight: 500;
    line-height: 1.25;
    text-align: center;
    transition: background-color var(--transition-fast), color var(--transition-fast), transform var(--transition-fast);
    width: 100%;
}

.workout-gen-trivia-option:active {
    transform: scale(0.98);
}

.workout-gen-trivia-option.is-selected {
    background-color: var(--text-primary);
    color: var(--bg-primary);
}

.workout-gen-trivia-option.is-correct {
    background: var(--color-information);
    color: var(--text-primary);
}

.workout-gen-trivia-option.is-incorrect {
    background: var(--color-error);
    color: var(--text-primary);
}

.workout-gen-trivia-option.is-placeholder {
    visibility: hidden;
    pointer-events: none;
}

.workout-gen-trivia-note {
    width: 100%;
    max-width: 520px;
    margin-top: var(--space-sm);
    padding: 0;
    border: none;
    border-radius: 0;
    background: transparent;
    color: var(--text-muted);
    font-family: var(--font-primary);
    font-size: var(--text-sm);
    line-height: 1.35;
    text-align: center;
}

/* ==============================
   RESULTS SECTION
   ============================== */

.workout-gen-results-section {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    gap: var(--space-lg);
    opacity: 0;
    transition: opacity var(--transition-slow);
    overflow-y: auto;
    padding: var(--space-md);
    width: 100%;
    box-sizing: border-box;
}

.workout-gen-results-section.visible {
    opacity: 1;
}

/* Preview Carousel */
.workout-gen-preview-carousel {
    width: 100%;
    max-width: 940px;
    margin: 0 auto;
    padding: 0 var(--space-md) var(--space-lg);
    box-sizing: border-box;
    overflow-x: auto;
    overflow-y: visible;
    scroll-snap-type: x mandatory;
}

.workout-gen-preview-carousel::-webkit-scrollbar {
    height: 8px;
}

.workout-gen-preview-carousel::-webkit-scrollbar-track {
    background: var(--color-surface-subtle);
    border-radius: var(--radius-standard);
}

.workout-gen-preview-carousel::-webkit-scrollbar-thumb {
    background: var(--color-surface-strong);
    border-radius: var(--radius-standard);
}

.workout-gen-preview-track {
    display: flex;
    gap: var(--space-lg);
    padding: var(--space-md) 0;
    justify-content: center;
}

.workout-gen-preview-carousel.has-multiple .workout-gen-preview-track {
    justify-content: flex-start;
}

.workout-gen-preview-pane {
    position: relative;
    flex: 0 0 78%;
    max-width: 720px;
    background: var(--color-surface-muted);
    border-radius: var(--radius-standard);
    padding: var(--space-xl) var(--space-lg) var(--space-lg);
    box-sizing: border-box;
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
    scroll-snap-align: center;
}

.workout-gen-preview-header {
    display: flex;
    flex-direction: column;
    gap: calc(var(--space-sm) / 2);
}

.workout-gen-preview-title {
    font-family: var(--font-primary);
    font-weight: 600;
    font-size: var(--text-xl);
    line-height: 1.3;
    color: var(--text-primary);
    margin: 0;
}

.workout-gen-preview-body {
    position: relative;
}

.workout-gen-preview-content.preview-content {
    max-width: none;
    margin: 0;
    padding: 0;
    flex: initial;
    max-height: none;
    overflow: visible;
}

.workout-gen-preview-content.preview-content .preview-section {
    margin-bottom: var(--space-md);
}

.workout-gen-preview-content.preview-content .preview-section:last-child {
    margin-bottom: 0;
}

.workout-gen-day-badge {
    top: 16px;
    left: 16px;
    color: var(--text-primary);
    font-family: var(--font-primary);
    font-size: var(--text-base);
    font-weight: 600;
    border-radius: var(--radius-standard);
}

.workout-gen-preview-pane .preview-exercise-block {
    cursor: pointer;
    transition: background-color var(--transition-fast), transform var(--transition-fast);
}

.workout-gen-preview-pane .preview-exercise-block:hover {
    transform: translateY(-1px);
}

.workout-gen-start-btn {
    font-family: var(--font-primary);
    font-size: var(--text-base);
    font-weight: 600;
    color: var(--bg-primary);
    background: var(--text-primary);
    border: none;
    border-radius: var(--radius-pill);
    padding: var(--space-md) 36px;
    cursor: pointer;
    transition: transform var(--transition-fast), background-color var(--transition-fast), color var(--transition-fast);
}

.workout-gen-start-btn:hover {
    transform: translateY(-1px);
}

.workout-gen-start-btn:active {
    transform: none;
}

.workout-gen-single-result {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-md);
    text-align: center;
    padding: var(--space-md);
}

.workout-gen-error-icon {
    font-size: var(--text-2xl);
    color: var(--color-error-red);
}

.workout-gen-single-title {
    margin: 0;
    color: var(--color-error-red);
}

.workout-gen-error-message {
    margin: 0;
    color: var(--text-muted);
    text-align: center;
    font-size: var(--text-base);
}

.workout-gen-start-btn--error {
    background: var(--color-error);
    color: var(--text-primary);
}

/* ==============================
   RESPONSIVE ADJUSTMENTS
   ============================== */

@media (max-width: 768px) {
    .workout-gen-modal {
        padding: var(--space-lg);
    }

    .workout-gen-modal.collapsed {
        padding: var(--space-md) var(--space-lg);
    }

    .workout-gen-tip-text {
        font-size: var(--text-base);
        padding: 0 var(--space-md);
    }

    .workout-gen-preview-pane {
        flex-basis: 100%;
        max-width: 600px;
        padding: var(--space-lg) var(--space-md) var(--space-lg);
        gap: var(--space-md);
    }

    .workout-gen-day-badge {
        top: 12px;
        left: 12px;
        font-size: var(--text-sm);
    }

    .workout-gen-preview-carousel {
        padding: 0 12px var(--space-lg);
    }

    .workout-gen-preview-track {
        gap: var(--space-md);
    }
}

/* ==============================
   SAFE AREA SUPPORT (iOS)
   ============================== */

.workout-gen-modal {
    padding-bottom: calc(24px + env(safe-area-inset-bottom, 0px));
    padding-left: calc(24px + env(safe-area-inset-left, 0px));
    padding-right: calc(24px + env(safe-area-inset-right, 0px));
}

.workout-gen-modal.collapsed {
    padding-bottom: calc(16px + env(safe-area-inset-bottom, 0px));
    padding-left: calc(24px + env(safe-area-inset-left, 0px));
    padding-right: calc(24px + env(safe-area-inset-right, 0px));
}