/**
 * AI YouTube Title Generator - Frontend SaaS Stylesheet
 */

:root {
    --aiytt-primary: #ff0000;
    --aiytt-primary-hover: #d90000;
    --aiytt-accent: #7c3aed;
    --aiytt-bg: #ffffff;
    --aiytt-card-bg: #ffffff;
    --aiytt-border: #e2e8f0;
    --aiytt-text: #0f172a;
    --aiytt-text-muted: #64748b;
    --aiytt-input-bg: #f8fafc;
    --aiytt-input-border: #cbd5e1;
    --aiytt-radius: 12px;
    --aiytt-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.05), 0 8px 10px -6px rgba(0, 0, 0, 0.03);
    --aiytt-glow: 0 0 20px rgba(255, 0, 0, 0.15);
}

@media (prefers-color-scheme: dark) {
    .aiytt-container {
        --aiytt-bg: #0f172a;
        --aiytt-card-bg: #1e293b;
        --aiytt-border: #334155;
        --aiytt-text: #f8fafc;
        --aiytt-text-muted: #94a3b8;
        --aiytt-input-bg: #0f172a;
        --aiytt-input-border: #334155;
    }
}

.aiytt-container {
    max-width: 800px;
    margin: 30px auto;
    padding: 32px;
    background: var(--aiytt-card-bg);
    border: 1px solid var(--aiytt-border);
    border-radius: var(--aiytt-radius);
    box-shadow: var(--aiytt-shadow);
    font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    color: var(--aiytt-text);
    box-sizing: border-box;
}

.aiytt-container * {
    box-sizing: border-box;
}

.aiytt-form-header {
    text-align: center;
    margin-bottom: 28px;
}

.aiytt-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(255, 0, 0, 0.08);
    color: var(--aiytt-primary);
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 12px;
}

.aiytt-badge-dot {
    width: 6px;
    height: 6px;
    background: var(--aiytt-primary);
    border-radius: 50%;
    animation: aiytt-pulse 1.5s infinite;
}

@keyframes aiytt-pulse {
    0% { transform: scale(0.95); opacity: 1; }
    50% { transform: scale(1.3); opacity: 0.7; }
    100% { transform: scale(0.95); opacity: 1; }
}

.aiytt-title {
    margin: 0 0 8px 0;
    font-size: 26px;
    font-weight: 800;
    color: var(--aiytt-text);
    letter-spacing: -0.5px;
}

.aiytt-desc {
    margin: 0;
    font-size: 15px;
    color: var(--aiytt-text-muted);
    line-height: 1.5;
}

/* Grid Layout */
.aiytt-form-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 16px;
    margin-bottom: 24px;
}

.aiytt-col-full { grid-column: span 6; }
.aiytt-col-half { grid-column: span 3; }
.aiytt-col-third { grid-column: span 2; }

@media (max-width: 650px) {
    .aiytt-col-half,
    .aiytt-col-third {
        grid-column: span 6;
    }
}

.aiytt-field-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.aiytt-label {
    font-size: 13px;
    font-weight: 600;
    color: var(--aiytt-text);
}

.aiytt-req { color: var(--aiytt-primary); }
.aiytt-opt { color: var(--aiytt-text-muted); font-size: 12px; font-weight: normal; }

.aiytt-input,
.aiytt-select {
    width: 100%;
    padding: 11px 14px;
    background: var(--aiytt-input-bg);
    border: 1px solid var(--aiytt-input-border);
    border-radius: 10px;
    font-size: 14px;
    color: var(--aiytt-text);
    transition: all 0.2s ease;
    outline: none;
    font-family: inherit;
}

.aiytt-input:focus,
.aiytt-select:focus {
    border-color: var(--aiytt-primary);
    box-shadow: var(--aiytt-glow);
    background: var(--aiytt-bg);
}

.aiytt-field-error {
    font-size: 12px;
    color: #ef4444;
    font-weight: 500;
}

/* Buttons */
.aiytt-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 14px 24px;
    border: none;
    border-radius: 10px;
    font-size: 15px;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.2s ease;
    width: 100%;
}

.aiytt-btn-primary {
    background: linear-gradient(135deg, #ff0000 0%, #d90000 100%);
    color: #ffffff;
    box-shadow: 0 4px 14px rgba(255, 0, 0, 0.3);
}

.aiytt-btn-primary:hover:not(:disabled) {
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(255, 0, 0, 0.4);
}

.aiytt-btn-primary:disabled {
    opacity: 0.7;
    cursor: not-allowed;
}

.aiytt-btn-secondary {
    background: #f1f5f9;
    color: #334155;
    padding: 8px 16px;
    font-size: 13px;
    border-radius: 8px;
    border: 1px solid #cbd5e1;
    width: auto;
}

.aiytt-btn-secondary:hover {
    background: #e2e8f0;
    color: #0f172a;
}

/* Loading Spinner */
.aiytt-spinner {
    width: 18px;
    height: 18px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: #ffffff;
    animation: aiytt-spin 0.8s linear infinite;
}

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

/* Alert Box */
.aiytt-alert {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-top: 20px;
    padding: 14px 18px;
    border-radius: 10px;
    background: #fef2f2;
    border: 1px solid #fecaca;
    color: #991b1b;
    font-size: 14px;
    font-weight: 500;
}

/* Results Container */
.aiytt-results-container {
    margin-top: 28px;
    padding-top: 24px;
    border-top: 1px solid var(--aiytt-border);
    animation: aiytt-fadeIn 0.3s ease-out;
}

@keyframes aiytt-fadeIn {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}

.aiytt-results-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
    flex-wrap: wrap;
    gap: 12px;
}

.aiytt-results-title-wrap {
    display: flex;
    align-items: center;
    gap: 10px;
}

.aiytt-results-header h3 {
    margin: 0;
    font-size: 18px;
    font-weight: 700;
}

.aiytt-badge-green {
    background: #10b981;
    color: #ffffff;
    font-size: 11px;
    font-weight: 700;
    padding: 2px 8px;
    border-radius: 12px;
}

/* Title Cards List */
.aiytt-titles-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.aiytt-title-card {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    background: var(--aiytt-input-bg);
    border: 1px solid var(--aiytt-border);
    border-radius: 10px;
    padding: 14px 18px;
    transition: all 0.2s ease;
}

.aiytt-title-card:hover {
    border-color: var(--aiytt-primary);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
}

.aiytt-title-left {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    flex: 1;
}

.aiytt-title-num {
    background: #f1f5f9;
    color: #475569;
    font-size: 12px;
    font-weight: 700;
    width: 26px;
    height: 26px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    margin-top: 2px;
}

.aiytt-title-text {
    font-size: 15px;
    font-weight: 600;
    color: var(--aiytt-text);
    line-height: 1.4;
}

.aiytt-title-right {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-shrink: 0;
}

.aiytt-char-count {
    font-size: 12px;
    color: var(--aiytt-text-muted);
    font-weight: 500;
}

.aiytt-copy-single-btn {
    background: #ffffff;
    border: 1px solid #cbd5e1;
    color: #334155;
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 12px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
}

.aiytt-copy-single-btn:hover {
    background: var(--aiytt-primary);
    color: #ffffff;
    border-color: var(--aiytt-primary);
}

/* Toast */
.aiytt-toast {
    position: fixed;
    bottom: 30px;
    right: 30px;
    z-index: 99999;
    background: #0f172a;
    color: #ffffff;
    padding: 12px 20px;
    border-radius: 10px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
    font-weight: 600;
    animation: aiytt-slideUp 0.3s ease-out;
}

@keyframes aiytt-slideUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.aiytt-toast-icon { color: #10b981; }

.hidden { display: none !important; }