/* assets/style.css */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

:root {
    /* Light Theme Tokens */
    --bg-gradient-start: #f8fafc;
    --bg-gradient-end: #e2e8f0;
    --card-bg: rgba(255, 255, 255, 0.95);
    --card-border: #e2e8f0;
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #94a3b8;
    --accent-color: #6366f1;
    --accent-hover: #4f46e5;
    --accent-light: #e0e7ff;
    --accent-gradient: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
    --option-bg: #f8fafc;
    --option-border: #cbd5e1;
    --option-hover: #e0e7ff;
    --option-selected: #ede9fe;
    --option-selected-border: #8b5cf6;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 25px -5px rgba(99, 102, 241, 0.15), 0 8px 10px -6px rgba(99, 102, 241, 0.1);
    --danger-color: #ef4444;
    --success-color: #10b981;
    --input-bg: #ffffff;
}

[data-theme="dark"] {
    /* Dark Theme Tokens */
    --bg-gradient-start: #0f172a;
    --bg-gradient-end: #1e293b;
    --card-bg: rgba(30, 41, 59, 0.92);
    --card-border: #334155;
    --text-primary: #f8fafc;
    --text-secondary: #cbd5e1;
    --text-muted: #64748b;
    --accent-color: #818cf8;
    --accent-hover: #6366f1;
    --accent-light: rgba(99, 102, 241, 0.2);
    --accent-gradient: linear-gradient(135deg, #818cf8 0%, #a78bfa 100%);
    --option-bg: #1e293b;
    --option-border: #334155;
    --option-hover: #334155;
    --option-selected: rgba(139, 92, 246, 0.25);
    --option-selected-border: #a78bfa;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 10px 25px -5px rgba(0, 0, 0, 0.5);
    --danger-color: #f87171;
    --success-color: #34d399;
    --input-bg: #0f172a;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    transition: background-color 0.3s ease, border-color 0.3s ease, color 0.3s ease;
}

body {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    background: linear-gradient(135deg, var(--bg-gradient-start), var(--bg-gradient-end));
    color: var(--text-primary);
    min-height: 100vh;
    padding: 2rem 1rem;
    display: flex;
    justify-content: center;
    align-items: flex-start;
}

.container {
    width: 100%;
    max-width: 820px;
    margin: 0 auto;
}

/* Header & Floating controls */
.header-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.brand-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 9999px;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--accent-color);
    box-shadow: var(--shadow-sm);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.theme-toggle-btn, .admin-link-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    padding: 0.6rem 1rem;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 0.75rem;
    color: var(--text-primary);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    text-decoration: none;
    box-shadow: var(--shadow-sm);
}

.theme-toggle-btn:hover, .admin-link-btn:hover {
    border-color: var(--accent-color);
    color: var(--accent-color);
    transform: translateY(-1px);
}

/* Card layout */
.survey-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 1.5rem;
    padding: 2.5rem;
    box-shadow: var(--shadow-lg);
    backdrop-filter: blur(16px);
}

.survey-title {
    font-size: 1.875rem;
    font-weight: 800;
    margin-bottom: 0.75rem;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    line-height: 1.2;
}

.survey-subtitle {
    font-size: 1rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    line-height: 1.6;
}

/* Question Sections */
.q-section {
    margin-bottom: 2.5rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid var(--card-border);
}

.q-section:last-of-type {
    border-bottom: none;
    margin-bottom: 1.5rem;
    padding-bottom: 0;
}

.q-title {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 1.25rem;
    display: flex;
    align-items: center;
    gap: 0.6rem;
}

.title-icon {
    width: 1.35rem;
    height: 1.35rem;
    color: var(--accent-color);
}

.opt-icon {
    width: 1.15rem;
    height: 1.15rem;
    color: var(--text-secondary);
    flex-shrink: 0;
    transition: color 0.2s ease, transform 0.2s ease;
}

.option-label:hover .opt-icon,
.option-label.selected .opt-icon {
    color: var(--accent-color);
    transform: scale(1.1);
}

.q-num {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 1.75rem;
    height: 1.75rem;
    background: var(--accent-light);
    color: var(--accent-color);
    border-radius: 50%;
    font-size: 0.875rem;
    font-weight: 700;
}

.q-hint {
    font-size: 0.85rem;
    font-weight: 400;
    color: var(--text-muted);
    margin-left: 0.25rem;
}

/* Options Grid / Group */
.options-group {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 0.75rem;
}

.option-label {
    display: flex;
    align-items: center;
    gap: 0.875rem;
    padding: 1rem 1.25rem;
    background: var(--option-bg);
    border: 1.5px solid var(--option-border);
    border-radius: 0.875rem;
    cursor: pointer;
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-primary);
    user-select: none;
    transition: all 0.2s ease;
}

.option-label:hover {
    background: var(--option-hover);
    border-color: var(--accent-color);
}

.option-label input[type="radio"],
.option-label input[type="checkbox"] {
    width: 1.2rem;
    height: 1.2rem;
    accent-color: var(--accent-color);
    cursor: pointer;
}

.option-label.selected {
    background: var(--option-selected);
    border-color: var(--option-selected-border);
    font-weight: 600;
}

/* Text Inputs */
.text-input-field, .textarea-field {
    width: 100%;
    padding: 0.875rem 1rem;
    background: var(--input-bg);
    border: 1.5px solid var(--option-border);
    border-radius: 0.75rem;
    font-size: 0.95rem;
    color: var(--text-primary);
    outline: none;
    margin-top: 0.5rem;
}

.text-input-field:focus, .textarea-field:focus {
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px var(--accent-light);
}

.textarea-field {
    min-height: 110px;
    resize: vertical;
    font-family: inherit;
}

/* NPS Rating Bar (0 - 10) */
.nps-container {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.nps-buttons {
    display: flex;
    justify-content: space-between;
    gap: 0.4rem;
    flex-wrap: wrap;
}

.nps-btn {
    flex: 1;
    min-width: 2.2rem;
    height: 3rem;
    border-radius: 0.75rem;
    border: 1.5px solid var(--option-border);
    background: var(--option-bg);
    color: var(--text-primary);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
}

.nps-btn:hover {
    border-color: var(--accent-color);
    background: var(--option-hover);
    transform: translateY(-2px);
}

.nps-btn.selected {
    background: var(--accent-gradient);
    border-color: transparent;
    color: #ffffff;
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.4);

}

.nps-labels {
    display: flex;
    justify-content: space-between;
    font-size: 0.8rem;
    color: var(--text-muted);
    font-weight: 500;
    padding: 0 0.25rem;
}

/* Submit Button */
.submit-btn {
    width: 100%;
    padding: 1.125rem;
    background: var(--accent-gradient);
    border: none;
    border-radius: 1rem;
    color: #ffffff;
    font-size: 1.125rem;
    font-weight: 700;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.6rem;
    box-shadow: 0 8px 20px -4px rgba(99, 102, 241, 0.4);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.submit-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 24px -4px rgba(99, 102, 241, 0.5);
}

.submit-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

/* Thank you card */
.thankyou-card {
    text-align: center;
    padding: 4rem 2rem;
}

.thankyou-icon {
    width: 4.5rem;
    height: 4.5rem;
    background: var(--accent-light);
    color: var(--accent-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem auto;
}

.thankyou-title {
    font-size: 2rem;
    font-weight: 800;
    margin-bottom: 0.75rem;
}

.thankyou-msg {
    font-size: 1.05rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

/* Admin Specific */
.admin-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 1.25rem;
    padding: 1.75rem;
    margin-bottom: 1.5rem;
    box-shadow: var(--shadow-md);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.25rem;
    margin-bottom: 2rem;
}

.stat-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 1rem;
    padding: 1.5rem;
    box-shadow: var(--shadow-sm);
}

.stat-val {
    font-size: 2.25rem;
    font-weight: 800;
    color: var(--accent-color);
    margin-top: 0.5rem;
}

.stat-lbl {
    font-size: 0.875rem;
    color: var(--text-muted);
    font-weight: 500;
}

.bar-container {
    background: var(--option-bg);
    border-radius: 9999px;
    height: 0.75rem;
    overflow: hidden;
    margin-top: 0.5rem;
    display: flex;
}

.bar-fill {
    height: 100%;
    transition: width 0.5s ease;
}

.bar-fill.promoter { background: #10b981; }
.bar-fill.passive { background: #f59e0b; }
.bar-fill.detractor { background: #ef4444; }

/* Table */
.table-responsive {
    width: 100%;
    overflow-x: auto;
    border-radius: 0.75rem;
    border: 1px solid var(--card-border);
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
    text-align: left;
}

.data-table th, .data-table td {
    padding: 1rem;
    border-bottom: 1px solid var(--card-border);
}

.data-table th {
    background: var(--option-bg);
    color: var(--text-secondary);
    font-weight: 600;
}

.data-table tr:hover {
    background: var(--option-hover);
}

/* Modal */
.modal-overlay {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: 1rem;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s ease;
}

.modal-overlay.active {
    opacity: 1;
    pointer-events: auto;
}

.modal-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 1.25rem;
    width: 100%;
    max-width: 600px;
    max-height: 90vh;
    overflow-y: auto;
    padding: 2rem;
    box-shadow: var(--shadow-lg);
}

@media (max-width: 640px) {
    body {
        padding: 1rem 0.5rem;
    }
    .survey-card {
        padding: 1.5rem;
    }
    .nps-btn {
        min-width: 1.8rem;
        height: 2.5rem;
        font-size: 0.875rem;
    }
}