/* NerdCal Public Styles - Modern & Welcoming */

:root {
    --primary: #6366f1;
    --primary-light: #818cf8;
    --primary-dark: #4f46e5;
    --secondary: #ec4899;
    --accent: #06b6d4;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;
    --radius: 12px;
    --radius-lg: 20px;
    --shadow: 0 1px 3px rgba(0,0,0,0.1), 0 1px 2px rgba(0,0,0,0.06);
    --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 15px -3px rgba(0,0,0,0.1), 0 4px 6px -2px rgba(0,0,0,0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0,0,0,0.1), 0 10px 10px -5px rgba(0,0,0,0.04);
    --gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-warm: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --gradient-cool: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: linear-gradient(180deg, #f0f4ff 0%, #faf5ff 50%, #fff 100%);
    color: var(--gray-800);
    line-height: 1.6;
    min-height: 100vh;
}

/* Hero Header */
.hero {
    background: var(--gradient);
    padding: 3rem 1rem 4rem;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.08'%3E%3Ccircle cx='30' cy='30' r='4'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 600px;
    margin: 0 auto;
}

.hero .logo {
    font-size: 3rem;
    margin-bottom: 0.5rem;
}

.hero h1 {
    font-size: 2.5rem;
    font-weight: 800;
    color: white;
    margin-bottom: 0.75rem;
    letter-spacing: -0.025em;
}

.hero .tagline {
    color: rgba(255,255,255,0.9);
    font-size: 1.25rem;
    font-weight: 400;
}

.hero .wave {
    position: absolute;
    bottom: -2px;
    left: 0;
    right: 0;
    height: 50px;
}

/* Container */
.container {
    max-width: 720px;
    margin: -2rem auto 0;
    padding: 0 1rem 3rem;
    position: relative;
    z-index: 2;
}

/* Welcome Card */
.welcome-card {
    background: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    padding: 2rem;
    margin-bottom: 2rem;
    text-align: center;
    border: 1px solid rgba(99, 102, 241, 0.1);
}

.welcome-card h2 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 0.5rem;
}

.welcome-card p {
    color: var(--gray-500);
    font-size: 1rem;
}

/* Section Titles */
.section-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--gray-500);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 1rem;
    padding-left: 0.5rem;
}

/* Appointment Type Cards */
.appointment-types {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.type-card {
    display: flex;
    align-items: center;
    gap: 1.25rem;
    background: white;
    padding: 1.5rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    text-decoration: none;
    color: inherit;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: 2px solid transparent;
    position: relative;
    overflow: hidden;
}

.type-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: var(--gradient);
    opacity: 0;
    transition: opacity 0.3s;
}

.type-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-light);
}

.type-card:hover::before {
    opacity: 1;
}

.type-icon {
    flex-shrink: 0;
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, #e0e7ff 0%, #c7d2fe 100%);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    transition: all 0.3s;
}

.type-card:hover .type-icon {
    background: var(--gradient);
    color: white;
    transform: scale(1.05);
}

.type-icon svg {
    width: 28px;
    height: 28px;
}

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

.type-info h3 {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 0.35rem;
}

.type-description {
    font-size: 0.95rem;
    color: var(--gray-500);
    margin-bottom: 0.75rem;
    line-height: 1.5;
}

.type-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    font-size: 0.85rem;
}

.type-meta span {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.3rem 0.75rem;
    background: var(--gray-100);
    border-radius: 20px;
    color: var(--gray-600);
    font-weight: 500;
}

.type-meta svg {
    width: 14px;
    height: 14px;
}

.type-arrow {
    flex-shrink: 0;
    width: 40px;
    height: 40px;
    background: var(--gray-100);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--gray-400);
    transition: all 0.3s;
}

.type-card:hover .type-arrow {
    background: var(--primary);
    color: white;
    transform: translateX(4px);
}

.type-arrow svg {
    width: 20px;
    height: 20px;
}

/* Meeting Type Badges */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.3rem 0.75rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
}

.badge-zoom {
    background: #dbeafe;
    color: #1d4ed8;
}

.badge-phone {
    background: #d1fae5;
    color: #047857;
}

.badge-onsite {
    background: #fef3c7;
    color: #b45309;
}

.badge-video {
    background: #ede9fe;
    color: #6d28d9;
}

/* No Types Message */
.no-types {
    text-align: center;
    padding: 4rem 2rem;
    background: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
}

.no-types .icon {
    width: 80px;
    height: 80px;
    background: var(--gray-100);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    color: var(--gray-400);
}

.no-types .icon svg {
    width: 40px;
    height: 40px;
}

.no-types h3 {
    font-size: 1.25rem;
    color: var(--gray-700);
    margin-bottom: 0.5rem;
}

.no-types p {
    color: var(--gray-500);
}

/* Footer */
.footer {
    text-align: center;
    margin-top: 3rem;
    padding: 1.5rem 1rem;
    color: var(--gray-400);
    font-size: 0.875rem;
}

.footer a {
    color: var(--primary);
    text-decoration: none;
}

.footer a:hover {
    text-decoration: underline;
}

/* Forms */
.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--gray-700);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.875rem 1rem;
    border: 2px solid var(--gray-200);
    border-radius: var(--radius);
    font-size: 1rem;
    transition: all 0.2s;
    background: white;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.1);
}

.form-group .help-text {
    font-size: 0.85rem;
    color: var(--gray-500);
    margin-top: 0.5rem;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.875rem 1.75rem;
    font-size: 1rem;
    font-weight: 600;
    border-radius: var(--radius);
    border: none;
    cursor: pointer;
    text-decoration: none;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.btn:active {
    transform: scale(0.98);
}

.btn-primary {
    background: var(--gradient);
    color: white;
    box-shadow: 0 4px 14px 0 rgba(99, 102, 241, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px 0 rgba(99, 102, 241, 0.5);
}

.btn-secondary {
    background: white;
    color: var(--gray-700);
    border: 2px solid var(--gray-200);
}

.btn-secondary:hover {
    border-color: var(--gray-300);
    background: var(--gray-50);
}

.btn-block {
    width: 100%;
}

/* Alerts */
.alert {
    padding: 1rem 1.25rem;
    border-radius: var(--radius);
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.alert-success {
    background: linear-gradient(135deg, #d1fae5 0%, #a7f3d0 100%);
    color: #065f46;
    border: 1px solid #6ee7b7;
}

.alert-error {
    background: linear-gradient(135deg, #fee2e2 0%, #fecaca 100%);
    color: #991b1b;
    border: 1px solid #fca5a5;
}

.alert-warning {
    background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
    color: #92400e;
    border: 1px solid #fcd34d;
}

/* Calendar / Date Picker */
.calendar-wrapper {
    background: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    padding: 1.75rem;
    margin-bottom: 1.5rem;
}

.calendar-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1.25rem;
}

.calendar-header h3 {
    font-weight: 700;
    font-size: 1.1rem;
    color: var(--gray-800);
}

.calendar-nav {
    display: flex;
    gap: 0.5rem;
}

.calendar-nav button {
    width: 36px;
    height: 36px;
    border: 2px solid var(--gray-200);
    background: white;
    border-radius: 10px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--gray-600);
    transition: all 0.2s;
}

.calendar-nav button:hover {
    border-color: var(--primary);
    color: var(--primary);
    background: #f0f4ff;
}

.calendar-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 6px;
}

.calendar-day-header {
    text-align: center;
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--gray-400);
    padding: 0.5rem 0;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.calendar-day {
    aspect-ratio: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 10px;
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
}

.calendar-day:hover:not(.disabled):not(.selected) {
    background: #f0f4ff;
    color: var(--primary);
}

.calendar-day.disabled {
    color: var(--gray-300);
    cursor: not-allowed;
}

.calendar-day.selected {
    background: var(--gradient);
    color: white;
    font-weight: 700;
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.4);
}

.calendar-day.today:not(.selected) {
    background: #f0f4ff;
    color: var(--primary);
    font-weight: 700;
}

/* Time Slots */
.time-slots {
    background: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    padding: 1.75rem;
}

.time-slots h3 {
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--gray-800);
}

.slots-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
    gap: 0.75rem;
}

.time-slot {
    padding: 0.875rem;
    text-align: center;
    border: 2px solid var(--gray-200);
    border-radius: var(--radius);
    cursor: pointer;
    transition: all 0.2s;
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--gray-700);
}

.time-slot:hover:not(.disabled) {
    border-color: var(--primary);
    background: #f0f4ff;
    color: var(--primary);
}

.time-slot.selected {
    background: var(--gradient);
    color: white;
    border-color: transparent;
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.4);
}

.time-slot.disabled {
    background: var(--gray-100);
    color: var(--gray-400);
    cursor: not-allowed;
    border-color: transparent;
}

/* Success Page */
.success-container {
    max-width: 560px;
}

.success-card {
    background: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    padding: 2.5rem;
    text-align: center;
}

.success-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    box-shadow: 0 8px 20px rgba(16, 185, 129, 0.3);
}

.success-icon svg {
    width: 40px;
    height: 40px;
    color: white;
}

.success-card h1 {
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--gray-900);
    margin-bottom: 0.5rem;
}

.success-card > p {
    color: var(--gray-500);
    margin-bottom: 1.5rem;
}

.confirmation-code {
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--primary);
    background: linear-gradient(135deg, #e0e7ff 0%, #c7d2fe 100%);
    padding: 1rem 2rem;
    border-radius: var(--radius);
    display: inline-block;
    margin: 1rem 0 1.5rem;
    font-family: 'SF Mono', Monaco, 'Courier New', monospace;
    letter-spacing: 2px;
}

.appointment-details {
    text-align: left;
    background: var(--gray-50);
    border-radius: var(--radius);
    padding: 1.5rem;
    margin: 1.5rem 0;
}

.appointment-details dt {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--gray-500);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.25rem;
}

.appointment-details dd {
    font-weight: 600;
    color: var(--gray-800);
    margin-bottom: 1rem;
    font-size: 1.05rem;
}

.appointment-details dd:last-child {
    margin-bottom: 0;
}

/* Booking Steps */
.booking-steps {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    margin-bottom: 2rem;
    padding: 0 1rem;
}

.step {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--gray-400);
    font-size: 0.9rem;
    font-weight: 500;
}

.step.active {
    color: var(--primary);
}

.step.completed {
    color: var(--success);
}

.step-number {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: var(--gray-200);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
    font-weight: 700;
}

.step.active .step-number {
    background: var(--gradient);
    color: white;
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.4);
}

.step.completed .step-number {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    color: white;
}

.step-divider {
    width: 40px;
    height: 3px;
    background: var(--gray-200);
    border-radius: 2px;
}

.step.completed + .step-divider,
.step-divider.completed {
    background: var(--success);
}

/* Responsive */
@media (max-width: 640px) {
    .hero {
        padding: 2rem 1rem 3rem;
    }

    .hero h1 {
        font-size: 1.75rem;
    }

    .hero .tagline {
        font-size: 1rem;
    }

    .container {
        padding: 0 0.75rem 2rem;
        margin-top: -1.5rem;
    }

    .welcome-card {
        padding: 1.5rem;
    }

    .type-card {
        padding: 1.25rem;
        gap: 1rem;
    }

    .type-icon {
        width: 48px;
        height: 48px;
    }

    .type-info h3 {
        font-size: 1.05rem;
    }

    .type-arrow {
        width: 36px;
        height: 36px;
    }

    .slots-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .booking-steps {
        gap: 0.25rem;
    }

    .step span:not(.step-number) {
        display: none;
    }

    .step-divider {
        width: 24px;
    }
}

/* Loading States */
.loading {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 3rem;
}

.spinner {
    width: 40px;
    height: 40px;
    border: 4px solid var(--gray-200);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

/* Fade in animation */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.type-card {
    animation: fadeInUp 0.5s ease-out forwards;
}

.type-card:nth-child(1) { animation-delay: 0.1s; }
.type-card:nth-child(2) { animation-delay: 0.2s; }
.type-card:nth-child(3) { animation-delay: 0.3s; }
.type-card:nth-child(4) { animation-delay: 0.4s; }
.type-card:nth-child(5) { animation-delay: 0.5s; }