/* ========== Reset & Base ========== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --primary-light: #818cf8;
    --secondary: #8b5cf6;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --dark: #1e293b;
    --dark-light: #334155;
    --gray: #64748b;
    --gray-light: #cbd5e1;
    --gray-lighter: #f1f5f9;
    --white: #ffffff;
    --bg: #f8fafc;
    --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
    --radius: 12px;
    --radius-sm: 8px;
    --sidebar-width: 280px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: var(--bg);
    color: var(--dark);
    line-height: 1.6;
    font-size: 16px;
}

/* ========== Login Page ========== */
.login-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    padding: 20px;
}

.login-container {
    width: 100%;
    max-width: 450px;
}

.login-box {
    background: var(--white);
    border-radius: var(--radius);
    box-shadow: var(--shadow-xl);
    padding: 40px;
    animation: slideUp 0.5s ease;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.login-header {
    text-align: center;
    margin-bottom: 30px;
}

.login-header h1 {
    font-size: 32px;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 8px;
}

.login-header p {
    color: var(--gray);
    font-size: 14px;
}

.tab-container {
    display: flex;
    gap: 10px;
    margin-bottom: 30px;
    background: var(--gray-lighter);
    padding: 4px;
    border-radius: var(--radius-sm);
}

.tab-btn {
    flex: 1;
    padding: 12px;
    border: none;
    background: transparent;
    color: var(--gray);
    font-weight: 600;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: var(--transition);
}

.tab-btn.active {
    background: var(--white);
    color: var(--primary);
    box-shadow: var(--shadow);
}

.auth-form {
    display: none;
}

.auth-form.active {
    display: block;
    animation: fadeIn 0.3s ease;
}

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

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

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--dark);
    font-size: 14px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--gray-light);
    border-radius: var(--radius-sm);
    font-size: 15px;
    transition: var(--transition);
    font-family: inherit;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

/* ========== Buttons ========== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    border: none;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 15px;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    justify-content: center;
}

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

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: var(--white);
    box-shadow: var(--shadow);
}

.btn-primary:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background: var(--gray-lighter);
    color: var(--dark);
}

.btn-secondary:hover:not(:disabled) {
    background: var(--gray-light);
}

.btn-success {
    background: var(--success);
    color: var(--white);
}

.btn-danger {
    background: var(--danger);
    color: var(--white);
}

.btn-block {
    width: 100%;
}

.btn svg {
    flex-shrink: 0;
}

/* ========== Alerts ========== */
.alert {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 18px;
    border-radius: var(--radius-sm);
    margin-bottom: 20px;
    font-size: 14px;
    animation: slideDown 0.3s ease;
}

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

.alert svg {
    flex-shrink: 0;
}

.alert-success {
    background: #d1fae5;
    color: #065f46;
    border: 1px solid #6ee7b7;
}

.alert-error {
    background: #fee2e2;
    color: #991b1b;
    border: 1px solid #fca5a5;
}

.alert-warning {
    background: #fef3c7;
    color: #92400e;
    border: 1px solid #fcd34d;
}

.alert-info {
    background: #dbeafe;
    color: #1e40af;
    border: 1px solid #93c5fd;
}

.alert-dismissible {
    position: relative;
    padding-right: 45px;
}

.alert-close {
    position: absolute;
    right: 14px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
    color: inherit;
    opacity: 0.6;
    transition: var(--transition);
    line-height: 1;
}

.alert-close:hover {
    opacity: 1;
}

/* ========== App Container ========== */
.app-container {
    display: flex;
    min-height: 100vh;
}

/* ========== Sidebar ========== */
.sidebar {
    width: var(--sidebar-width);
    background: var(--white);
    border-right: 1px solid var(--gray-light);
    display: flex;
    flex-direction: column;
    position: fixed;
    height: 100vh;
    left: 0;
    top: 0;
    z-index: 1000;
    transition: var(--transition);
}

.sidebar-header {
    padding: 24px;
    border-bottom: 1px solid var(--gray-light);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.sidebar-header h2 {
    font-size: 24px;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.sidebar-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    color: var(--gray);
    padding: 8px;
}

.sidebar-nav {
    flex: 1;
    padding: 20px 0;
    overflow-y: auto;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 24px;
    color: var(--gray);
    text-decoration: none;
    transition: var(--transition);
    font-weight: 500;
    margin: 0 12px 8px;
    border-radius: var(--radius-sm);
}

.nav-item:hover {
    background: var(--gray-lighter);
    color: var(--dark);
}

.nav-item.active {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: var(--white);
    box-shadow: var(--shadow);
}

.nav-item svg {
    flex-shrink: 0;
}

/* ========== Sidebar Footer ========== */
.sidebar-footer {
    padding: 20px;
    border-top: 1px solid var(--gray-light);
}

.user-info {
    display: flex;
    gap: 12px;
    margin-bottom: 16px;
    align-items: center;
}

.user-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 16px;
    flex-shrink: 0;
}

.user-details {
    flex: 1;
    min-width: 0;
}

.user-name {
    font-weight: 600;
    font-size: 14px;
    color: var(--dark);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.user-email {
    font-size: 12px;
    color: var(--gray);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.btn-logout {
    display: flex;
    align-items: center;
    gap: 8px;
    width: 100%;
    padding: 10px 16px;
    background: var(--gray-lighter);
    color: var(--dark);
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    font-weight: 500;
    font-size: 14px;
    justify-content: center;
}

.btn-logout:hover {
    background: var(--danger);
    color: var(--white);
}

/* ========== Main Content ========== */
.main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    padding: 30px;
    max-width: 100%;
    transition: var(--transition);
}

.mobile-header {
    display: none;
    align-items: center;
    gap: 16px;
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--gray-light);
}

.mobile-menu-toggle {
    background: none;
    border: none;
    cursor: pointer;
    color: var(--dark);
    padding: 8px;
}

.content-wrapper {
    max-width: 1400px;
}

/* ========== Dashboard ========== */
.dashboard-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
    flex-wrap: wrap;
    gap: 16px;
}

.dashboard-header h1 {
    font-size: 32px;
    font-weight: 700;
    color: var(--dark);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 24px;
    margin-bottom: 40px;
}

.stat-card {
    background: var(--white);
    border-radius: var(--radius);
    padding: 24px;
    box-shadow: var(--shadow);
    display: flex;
    gap: 16px;
    transition: var(--transition);
}

.stat-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.stat-icon {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.stat-icon-primary {
    background: linear-gradient(135deg, #ddd6fe, #c7d2fe);
    color: var(--primary);
}

.stat-icon-success {
    background: linear-gradient(135deg, #d1fae5, #a7f3d0);
    color: var(--success);
}

.stat-icon-warning {
    background: linear-gradient(135deg, #fef3c7, #fde68a);
    color: var(--warning);
}

.stat-content {
    flex: 1;
}

.stat-label {
    font-size: 14px;
    color: var(--gray);
    margin-bottom: 4px;
}

.stat-value {
    font-size: 32px;
    font-weight: 700;
    color: var(--dark);
}

/* ========== Section Headers ========== */
.section-header {
    margin: 40px 0 24px;
}

.section-header h2 {
    font-size: 24px;
    font-weight: 700;
    color: var(--dark);
}

/* ========== Personas Grid ========== */
.personas-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 24px;
    margin-bottom: 30px;
}

.persona-card {
    background: var(--white);
    border-radius: var(--radius);
    padding: 24px;
    box-shadow: var(--shadow);
    cursor: pointer;
    transition: var(--transition);
}

.persona-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.persona-card-header {
    display: flex;
    gap: 16px;
    margin-bottom: 20px;
    position: relative;
}

.persona-avatar-container {
    position: relative;
    flex-shrink: 0;
}

.persona-avatar {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 20px;
    flex-shrink: 0;
    position: relative;
    overflow: hidden;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
}

.persona-initials {
    position: relative;
    z-index: 2;
}

.persona-avatar-pattern {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        radial-gradient(circle at 20% 50%, rgba(255, 255, 255, 0.2) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(255, 255, 255, 0.15) 0%, transparent 50%);
    z-index: 1;
}

.persona-badge {
    position: absolute;
    bottom: -2px;
    right: -2px;
    width: 20px;
    height: 20px;
    background: var(--success);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 11px;
    color: white;
    border: 2px solid var(--white);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.persona-info {
    flex: 1;
    min-width: 0;
}

.persona-info h3 {
    font-size: 18px;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 4px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.persona-meta {
    font-size: 13px;
    color: var(--gray);
}

.persona-card-body {
    margin-bottom: 20px;
}

.persona-occupation,
.persona-location {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: var(--gray);
    margin-bottom: 8px;
}

.persona-occupation svg,
.persona-location svg {
    flex-shrink: 0;
    opacity: 0.7;
}

.persona-card-footer {
    display: flex;
    align-items: center;
    gap: 12px;
}

.completion-bar {
    flex: 1;
    height: 6px;
    background: var(--gray-lighter);
    border-radius: 3px;
    overflow: hidden;
}

.completion-progress {
    height: 100%;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    border-radius: 3px;
    transition: width 0.5s ease;
}

.completion-text {
    font-size: 13px;
    font-weight: 600;
    color: var(--gray);
    white-space: nowrap;
}

/* ========== Empty State ========== */
.empty-state {
    text-align: center;
    padding: 60px 20px;
    background: var(--white);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

.empty-state svg {
    color: var(--gray-light);
    margin-bottom: 24px;
}

.empty-state h2 {
    font-size: 24px;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 12px;
}

.empty-state p {
    color: var(--gray);
    margin-bottom: 24px;
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}

/* ========== Avatar Builder ========== */
.avatar-builder {
    display: grid;
    grid-template-columns: 1fr 400px;
    gap: 30px;
    margin-bottom: 30px;
}

.avatar-form {
    background: var(--white);
    border-radius: var(--radius);
    padding: 30px;
    box-shadow: var(--shadow);
}

.avatar-preview {
    background: var(--white);
    border-radius: var(--radius);
    padding: 30px;
    box-shadow: var(--shadow);
    position: sticky;
    top: 30px;
    height: fit-content;
}

.avatar-preview h3 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 24px;
    color: var(--dark);
}

.avatar-display {
    text-align: center;
    padding: 40px 20px;
    border: 2px dashed var(--gray-light);
    border-radius: var(--radius);
    margin-bottom: 20px;
}

.avatar-circle {
    width: 200px;
    height: 200px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    margin: 0 auto 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 72px;
    font-weight: 700;
    box-shadow: var(--shadow-lg);
    animation: pulse 2s ease-in-out infinite;
}

.avatar-circle-large {
    width: 200px;
    height: 200px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    margin: 0 auto 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 72px;
    font-weight: 700;
    position: relative;
    overflow: hidden;
    box-shadow: 
        0 20px 25px -5px rgba(99, 102, 241, 0.3),
        0 10px 10px -5px rgba(99, 102, 241, 0.2);
    animation: pulse 2s ease-in-out infinite;
}

.avatar-initials-large {
    position: relative;
    z-index: 3;
}

.avatar-pattern-large {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        radial-gradient(circle at 30% 30%, rgba(255, 255, 255, 0.2) 0%, transparent 50%),
        radial-gradient(circle at 70% 70%, rgba(255, 255, 255, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 50% 90%, rgba(255, 255, 255, 0.1) 0%, transparent 40%);
    z-index: 1;
}

.avatar-glow {
    position: absolute;
    top: -50%;
    left: -50%;
    right: -50%;
    bottom: -50%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.3) 0%, transparent 70%);
    animation: rotate 10s linear infinite;
    z-index: 2;
}

@keyframes rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

.avatar-name {
    font-size: 24px;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 8px;
}

.avatar-subtitle {
    font-size: 14px;
    color: var(--gray);
}

.avatar-stats {
    display: grid;
    gap: 12px;
}

.avatar-stat-item {
    display: flex;
    justify-content: space-between;
    padding: 12px;
    background: var(--gray-lighter);
    border-radius: var(--radius-sm);
    font-size: 14px;
}

.avatar-stat-label {
    color: var(--gray);
    font-weight: 500;
}

.avatar-stat-value {
    color: var(--dark);
    font-weight: 600;
}

/* ========== Survey Templates ========== */
.template-card {
    display: flex;
    align-items: center;
    padding: 16px;
    border: 2px solid var(--gray-light);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: var(--transition);
}

.template-card:hover {
    border-color: var(--primary);
    background: var(--gray-lighter);
}

.template-card input[type="radio"]:checked ~ div {
    color: var(--primary);
}

.checkbox-card {
    display: flex;
    align-items: center;
    padding: 12px;
    border: 1px solid var(--gray-light);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: var(--transition);
    font-size: 14px;
}

.checkbox-card:hover {
    background: var(--gray-lighter);
}

.checkbox-card input[type="checkbox"] {
    margin-right: 8px;
}

.checkbox-card input[type="checkbox"]:checked ~ span {
    font-weight: 600;
    color: var(--primary);
}

/* ========== Utilities ========== */
.text-center {
    text-align: center;
}

.mt-4 {
    margin-top: 24px;
}

.mb-4 {
    margin-bottom: 24px;
}

/* ========== Responsive ========== */
@media (max-width: 1024px) {
    .avatar-builder {
        grid-template-columns: 1fr;
    }
    
    .avatar-preview {
        position: static;
    }
}

@media (max-width: 768px) {
    :root {
        --sidebar-width: 280px;
    }
    
    .sidebar {
        transform: translateX(-100%);
    }
    
    .sidebar.active {
        transform: translateX(0);
    }
    
    .sidebar-toggle {
        display: block;
    }
    
    .main-content {
        margin-left: 0;
        padding: 20px;
    }
    
    .mobile-header {
        display: flex;
    }
    
    .dashboard-header h1 {
        font-size: 24px;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .personas-grid {
        grid-template-columns: 1fr;
    }
    
    .login-box {
        padding: 30px 24px;
    }
}