/* ==========================================================================
   App Studio Page Styles (extracted from Django template inline <style>)
   ========================================================================== */

.app-studio {
    padding: 2rem;
    max-width: 1000px;
}

/* Header */
.app-studio__header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 2rem;
}

.app-studio__back {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 10px;
    background: var(--surface);
    border: 1px solid var(--border);
    color: var(--text-secondary);
    text-decoration: none;
    transition: all 0.15s;
}

.app-studio__back:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.app-studio__icon {
    font-size: 1.75rem;
}

.app-studio__info {
    flex: 1;
}

.app-studio__name {
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--text-primary);
}

.app-studio__desc {
    color: var(--text-secondary);
    font-size: 0.85rem;
    margin-top: 0.15rem;
}

/* Generation Form */
.gen-form {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}

.gen-form__section {
    margin-bottom: 1.25rem;
}

.gen-form__section:last-child {
    margin-bottom: 0;
}

.gen-form__label {
    display: block;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.5rem;
}

/* Model Selector */
.model-selector {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: 12px;
    cursor: pointer;
    transition: border-color 0.15s;
}

.model-selector:hover {
    border-color: var(--primary);
}

.model-selector__avatar {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    background: linear-gradient(135deg, var(--primary), #8b5cf6);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 700;
    font-size: 0.9rem;
}

.model-selector__avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 10px;
}

.model-selector__name {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 0.9rem;
}

.model-selector__hint {
    color: var(--text-secondary);
    font-size: 0.75rem;
}

.model-selector__arrow {
    margin-left: auto;
    color: var(--text-secondary);
}

/* Prompt */
.gen-form__prompt {
    width: 100%;
    min-height: 100px;
    padding: 0.85rem 1rem;
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: 12px;
    color: var(--text-primary);
    font-family: 'Inter', sans-serif;
    font-size: 0.9rem;
    line-height: 1.5;
    resize: vertical;
    transition: border-color 0.15s;
}

.gen-form__prompt:focus {
    outline: none;
    border-color: var(--primary);
}

.gen-form__prompt::placeholder {
    color: var(--text-secondary);
    opacity: 0.6;
}

/* Tier Selector */
.tier-selector {
    display: flex;
    gap: 0.5rem;
}

.tier-btn {
    flex: 1;
    padding: 0.7rem 1rem;
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: 10px;
    color: var(--text-secondary);
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.15s;
    text-align: center;
}

.tier-btn:hover {
    border-color: var(--text-secondary);
}

.tier-btn--active {
    background: rgba(254, 6, 189, 0.1);
    border-color: var(--primary);
    color: var(--primary);
}

.tier-btn__credits {
    display: block;
    font-size: 0.7rem;
    margin-top: 0.2rem;
    opacity: 0.7;
}

/* Count Selector */
.count-selector {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.count-selector__btn {
    width: 36px;
    height: 36px;
    border-radius: 10px;
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    color: var(--text-primary);
    font-size: 1.1rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.15s;
}

.count-selector__btn:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.count-selector__value {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    min-width: 2ch;
    text-align: center;
}

/* Submit */
.gen-form__submit {
    width: 100%;
    padding: 0.85rem;
    background: var(--primary);
    border: none;
    border-radius: 12px;
    color: white;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.15s;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.gen-form__submit:hover {
    background: var(--primary-hover);
}

.gen-form__submit:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.gen-form__cost {
    font-weight: 400;
    opacity: 0.8;
}

/* Model Dropdown */
.model-dropdown {
    display: none;
    position: absolute;
    top: calc(100% + 4px);
    left: 0;
    right: 0;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 12px;
    box-shadow: 0 8px 32px rgba(0,0,0,0.3);
    z-index: 100;
    max-height: 260px;
    overflow-y: auto;
    padding: 0.5rem;
}

.model-dropdown--open {
    display: block;
}

.model-option {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    padding: 0.65rem 0.75rem;
    border-radius: 8px;
    cursor: pointer;
    transition: background 0.1s;
}

.model-option:hover {
    background: var(--surface-hover);
}

.model-option--active {
    background: rgba(254, 6, 189, 0.08);
}

.model-option__name {
    font-weight: 500;
    color: var(--text-primary);
    font-size: 0.85rem;
}

.model-option__status {
    font-size: 0.7rem;
    color: #22c55e;
}

/* Results */
.gen-results {
    margin-top: 1.5rem;
}

.gen-results__title {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.gen-results__grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 0.75rem;
}

.gen-results__item {
    position: relative;
    aspect-ratio: 1/1;
    border-radius: 12px;
    overflow: hidden;
    background: var(--bg-elevated);
    border: 1px solid var(--border);
}

.gen-results__item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* Loading State */
.gen-loading {
    display: none;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 3rem;
    text-align: center;
}

.gen-loading--active {
    display: flex;
}

.gen-loading__spinner {
    width: 48px;
    height: 48px;
    border: 3px solid var(--border);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin-bottom: 1rem;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.gen-loading__text {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.gen-loading__step {
    color: var(--primary);
    font-weight: 500;
    margin-top: 0.25rem;
}

/* Enhanced prompt preview */
.enhanced-preview {
    display: none;
    margin-top: 0.75rem;
    padding: 0.75rem 1rem;
    background: rgba(254, 6, 189, 0.05);
    border: 1px solid rgba(254, 6, 189, 0.15);
    border-radius: 10px;
    font-size: 0.8rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

.enhanced-preview--visible {
    display: block;
}

.enhanced-preview__label {
    font-weight: 600;
    color: var(--primary);
    margin-bottom: 0.25rem;
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}