/* style.css - Premium Design System for Survey & Admin */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Outfit:wght@400;500;600;700;800&display=swap');

:root {
    --bg-gradient: radial-gradient(circle at 50% 0%, #1e1b4b 0%, #0f172a 100%);
    --bg-dark: #0f172a;
    --card-bg: rgba(30, 41, 59, 0.7);
    --card-border: rgba(255, 255, 255, 0.08);
    --primary: #6366f1;
    --primary-glow: rgba(99, 102, 241, 0.3);
    --secondary: #06b6d4;
    --secondary-glow: rgba(6, 182, 212, 0.3);
    --accent: #ec4899;
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --success: #10b981;
    --error: #ef4444;
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;
    --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    background: var(--bg-gradient);
    color: var(--text-main);
    font-family: var(--font-body);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 20px;
    overflow-x: hidden;
}

/* Glassmorphism Containers */
.container {
    width: 100%;
    max-width: 720px;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-radius: 24px;
    padding: 40px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3), 
                inset 0 1px 0 rgba(255, 255, 255, 0.1);
    position: relative;
    overflow: hidden;
    animation: fadeInUp 0.6s ease-out;
}

/* Header & Typography */
h1, h2, h3, h4 {
    font-family: var(--font-heading);
    font-weight: 700;
}

h1 {
    font-size: 2.2rem;
    background: linear-gradient(135deg, #fff 0%, #cbd5e1 50%, var(--primary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 12px;
    text-align: center;
}

.subtitle {
    color: var(--text-muted);
    font-size: 1.05rem;
    text-align: center;
    margin-bottom: 40px;
    line-height: 1.6;
}

/* Progress Bar */
.progress-container {
    width: 100%;
    height: 6px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 10px;
    margin-bottom: 40px;
    position: relative;
    overflow: hidden;
}

.progress-bar {
    height: 100%;
    width: 20%;
    background: linear-gradient(90deg, var(--primary) 0%, var(--secondary) 100%);
    border-radius: 10px;
    transition: var(--transition-smooth);
    box-shadow: 0 0 12px var(--primary-glow);
}

/* Form Steps */
.form-step {
    display: none;
    animation: fadeIn 0.4s ease-in-out;
}

.form-step.active {
    display: block;
}

.question-group {
    margin-bottom: 35px;
}

.question-title {
    font-family: var(--font-heading);
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 18px;
    color: #ffffff;
    display: flex;
    align-items: center;
    gap: 10px;
}

.question-title span.number {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
    font-size: 0.9rem;
    width: 26px;
    height: 26px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
}

/* Choice Cards (Radio / Checkbox) */
.options-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 12px;
}

.options-grid-2col {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 12px;
}

.option-card {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 16px;
    padding: 16px 20px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 14px;
    transition: var(--transition-smooth);
    position: relative;
    user-select: none;
}

.option-card:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(99, 102, 241, 0.4);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
}

.option-card input[type="radio"], 
.option-card input[type="checkbox"] {
    appearance: none;
    -webkit-appearance: none;
    width: 20px;
    height: 20px;
    border: 2px solid rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    outline: none;
    transition: var(--transition-smooth);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.option-card input[type="checkbox"] {
    border-radius: 6px;
}

.option-card input[type="radio"]::before {
    content: "";
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--secondary);
    transform: scale(0);
    transition: var(--transition-smooth);
}

.option-card input[type="checkbox"]::before {
    content: "✓";
    font-size: 12px;
    color: white;
    font-weight: 700;
    transform: scale(0);
    transition: var(--transition-smooth);
}

.option-card input[type="radio"]:checked::before,
.option-card input[type="checkbox"]:checked::before {
    transform: scale(1);
}

.option-card input[type="radio"]:checked,
.option-card input[type="checkbox"]:checked {
    border-color: var(--secondary);
    background: rgba(6, 182, 212, 0.1);
    box-shadow: 0 0 10px var(--secondary-glow);
}

.option-card.selected {
    background: rgba(99, 102, 241, 0.08);
    border-color: var(--primary);
    box-shadow: 0 0 15px rgba(99, 102, 241, 0.15);
}

.option-card.selected label {
    color: #ffffff;
    font-weight: 500;
}

.option-card label {
    color: var(--text-muted);
    font-size: 1rem;
    cursor: pointer;
    width: 100%;
    transition: var(--transition-smooth);
}

/* Custom Text Input inside Options */
.other-input-container {
    width: 100%;
    margin-top: 10px;
    display: none;
    animation: slideDown 0.3s ease-out forwards;
}

.text-input, .textarea-input {
    width: 100%;
    background: rgba(15, 23, 42, 0.6);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    padding: 14px 18px;
    color: white;
    font-family: var(--font-body);
    font-size: 0.95rem;
    outline: none;
    transition: var(--transition-smooth);
}

.text-input:focus, .textarea-input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 12px var(--primary-glow);
    background: rgba(15, 23, 42, 0.8);
}

.textarea-input {
    height: 120px;
    resize: none;
    line-height: 1.6;
}

/* Textarea counter */
.char-counter {
    text-align: right;
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: 6px;
}

/* Recommendation (0-10) Component */
.recommend-scale {
    display: flex;
    justify-content: space-between;
    gap: 6px;
    margin-top: 15px;
}

.recommend-btn {
    flex: 1;
    aspect-ratio: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 50%;
    color: var(--text-muted);
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 1.1rem;
    cursor: pointer;
    transition: var(--transition-smooth);
}

.recommend-btn:hover {
    transform: scale(1.15);
    background: rgba(255, 255, 255, 0.08);
    color: #ffffff;
}

/* Color codes based on NPS score categories */
.recommend-btn[data-val="0"]:hover, .recommend-btn[data-val="0"].active,
.recommend-btn[data-val="1"]:hover, .recommend-btn[data-val="1"].active,
.recommend-btn[data-val="2"]:hover, .recommend-btn[data-val="2"].active,
.recommend-btn[data-val="3"]:hover, .recommend-btn[data-val="3"].active,
.recommend-btn[data-val="4"]:hover, .recommend-btn[data-val="4"].active,
.recommend-btn[data-val="5"]:hover, .recommend-btn[data-val="5"].active,
.recommend-btn[data-val="6"]:hover, .recommend-btn[data-val="6"].active {
    background: rgba(239, 68, 68, 0.15);
    border-color: #ef4444;
    color: #ef4444;
    box-shadow: 0 0 15px rgba(239, 68, 68, 0.3);
}

.recommend-btn[data-val="7"]:hover, .recommend-btn[data-val="7"].active,
.recommend-btn[data-val="8"]:hover, .recommend-btn[data-val="8"].active {
    background: rgba(245, 158, 11, 0.15);
    border-color: #f59e0b;
    color: #f59e0b;
    box-shadow: 0 0 15px rgba(245, 158, 11, 0.3);
}

.recommend-btn[data-val="9"]:hover, .recommend-btn[data-val="9"].active,
.recommend-btn[data-val="10"]:hover, .recommend-btn[data-val="10"].active {
    background: rgba(16, 185, 129, 0.15);
    border-color: #10b981;
    color: #10b981;
    box-shadow: 0 0 15px rgba(16, 185, 129, 0.3);
}

.recommend-labels {
    display: flex;
    justify-content: space-between;
    margin-top: 10px;
    font-size: 0.85rem;
    color: var(--text-muted);
    padding: 0 4px;
}

/* Action Buttons */
.button-row {
    display: flex;
    justify-content: space-between;
    margin-top: 40px;
    gap: 15px;
}

.btn {
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 1rem;
    padding: 14px 28px;
    border-radius: 14px;
    cursor: pointer;
    transition: var(--transition-smooth);
    border: none;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    user-select: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: white;
    box-shadow: 0 4px 15px var(--primary-glow);
    flex: 1;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px var(--primary-glow), 0 0 10px rgba(6, 182, 212, 0.4);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--text-main);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.2);
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none !important;
    box-shadow: none !important;
}

/* Success / Thank You Message */
.success-screen {
    text-align: center;
    padding: 30px 0;
    animation: scaleUp 0.5s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
}

.success-icon {
    width: 80px;
    height: 80px;
    background: rgba(16, 185, 129, 0.1);
    border: 2px solid var(--success);
    color: var(--success);
    font-size: 2.5rem;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 24px auto;
    box-shadow: 0 0 20px rgba(16, 185, 129, 0.3);
}

.success-title {
    font-size: 1.8rem;
    margin-bottom: 12px;
}

.success-desc {
    color: var(--text-muted);
    margin-bottom: 30px;
    line-height: 1.6;
}

/* Admin Dashboard Styles */
.admin-container {
    max-width: 1200px;
    width: 100%;
}

.admin-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    padding-bottom: 20px;
}

.admin-title-group h1 {
    text-align: left;
    font-size: 2rem;
}

.admin-actions {
    display: flex;
    gap: 12px;
}

/* Dashboard Statistics Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 20px;
    margin-bottom: 40px;
}

.stat-card {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 20px;
    padding: 24px;
    text-align: left;
    position: relative;
    overflow: hidden;
}

.stat-card::after {
    content: "";
    position: absolute;
    top: 0;
    right: 0;
    width: 100px;
    height: 100px;
    background: radial-gradient(circle, var(--primary-glow) 0%, transparent 70%);
    opacity: 0.5;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 10px;
}

.stat-val {
    font-family: var(--font-heading);
    font-size: 2.2rem;
    font-weight: 800;
    color: white;
    line-height: 1;
}

.stat-val span.unit {
    font-size: 1.2rem;
    font-weight: 500;
    color: var(--text-muted);
    margin-left: 4px;
}

.stat-desc {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: 8px;
}

/* Visualization Panel */
.charts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(450px, 1fr));
    gap: 24px;
    margin-bottom: 40px;
}

@media (max-width: 600px) {
    .charts-grid {
        grid-template-columns: 1fr;
    }
}

.chart-card {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 20px;
    padding: 24px;
}

.chart-header {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 20px;
    color: white;
    border-left: 3px solid var(--secondary);
    padding-left: 10px;
}

.chart-container {
    position: relative;
    height: 280px;
    width: 100%;
}

/* Data Table Panel */
.table-panel {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 20px;
    padding: 24px;
    overflow: hidden;
}

.table-header-group {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.table-title {
    font-size: 1.2rem;
    font-weight: 600;
    color: white;
}

.table-wrapper {
    overflow-x: auto;
    width: 100%;
}

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

.data-table th {
    background: rgba(255, 255, 255, 0.03);
    color: white;
    font-weight: 600;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    padding: 16px 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.data-table td {
    padding: 16px 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.04);
    color: var(--text-muted);
    font-size: 0.9rem;
    vertical-align: middle;
}

.data-table tbody tr {
    transition: var(--transition-smooth);
    cursor: pointer;
}

.data-table tbody tr:hover {
    background: rgba(255, 255, 255, 0.02);
}

.badge {
    display: inline-block;
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    text-align: center;
}

.badge-promoter {
    background: rgba(16, 185, 129, 0.1);
    color: #10b981;
    border: 1px solid rgba(16, 185, 129, 0.2);
}

.badge-passive {
    background: rgba(245, 158, 11, 0.1);
    color: #f59e0b;
    border: 1px solid rgba(245, 158, 11, 0.2);
}

.badge-detractor {
    background: rgba(239, 68, 68, 0.1);
    color: #ef4444;
    border: 1px solid rgba(239, 68, 68, 0.2);
}

/* Pagination */
.pagination {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-top: 24px;
}

.page-btn {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 8px;
    color: var(--text-muted);
    cursor: pointer;
    transition: var(--transition-smooth);
}

.page-btn:hover, .page-btn.active {
    background: var(--primary);
    border-color: var(--primary);
    color: white;
}

.page-btn:disabled {
    opacity: 0.3;
    cursor: not-allowed;
}

/* Modal details view */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(15, 23, 42, 0.8);
    backdrop-filter: blur(8px);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: 20px;
    animation: fadeIn 0.3s ease-out;
}

.modal-overlay.active {
    display: flex;
}

.modal-content {
    background: #1e293b;
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 24px;
    width: 100%;
    max-width: 640px;
    padding: 35px;
    position: relative;
    max-height: 90vh;
    overflow-y: auto;
    animation: scaleUp 0.3s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
}

.modal-close {
    position: absolute;
    top: 20px;
    right: 20px;
    background: rgba(255, 255, 255, 0.05);
    border: none;
    color: white;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 1.1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-smooth);
}

.modal-close:hover {
    background: rgba(255, 255, 255, 0.1);
}

.modal-title {
    font-size: 1.5rem;
    color: white;
    margin-bottom: 24px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    padding-bottom: 12px;
}

.detail-row {
    margin-bottom: 20px;
}

.detail-label {
    font-size: 0.85rem;
    color: var(--text-muted);
    text-transform: uppercase;
    margin-bottom: 6px;
    font-weight: 600;
}

.detail-val {
    font-size: 1rem;
    color: white;
    line-height: 1.6;
    background: rgba(0, 0, 0, 0.15);
    padding: 12px 16px;
    border-radius: 10px;
    border: 1px solid rgba(255, 255, 255, 0.02);
}

.detail-val-list {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    background: none !important;
    padding: 0 !important;
    border: none !important;
}

.detail-tag {
    background: rgba(99, 102, 241, 0.15);
    border: 1px solid rgba(99, 102, 241, 0.3);
    color: #a5b4fc;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.85rem;
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes scaleUp {
    from {
        opacity: 0;
        transform: scale(0.95);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Custom Checkbox Grid layout on Admin login */
.login-container {
    max-width: 420px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-bottom: 8px;
    font-weight: 500;
}

/* Responsive Overrides */
@media (max-width: 640px) {
    .container {
        padding: 24px;
        border-radius: 16px;
    }
    
    h1 {
        font-size: 1.8rem;
    }
    
    .recommend-scale {
        flex-wrap: wrap;
        justify-content: center;
        gap: 8px;
    }
    
    .recommend-btn {
        flex: none;
        width: 42px;
        height: 42px;
        font-size: 1rem;
    }
    
    .button-row {
        margin-top: 30px;
        flex-direction: column-reverse;
    }
    
    .btn {
        width: 100%;
    }
}