/* ========================================
   APPOINTMENT SYSTEM - MODERN HEALTHCARE THEME
   ======================================== */

/* ========================================
   CSS CUSTOM PROPERTIES (VARIABLES)
   ======================================== */
:root {
    /* Primary Colors - Soft Pastel Blue (Professional) */
    --primary: #7AB5D6;
    --primary-light: #A0C9E3;
    --primary-dark: #5A9BC2;
    --primary-subtle: #E8F3F8;

    /* Secondary Colors - Sage Green (Patient) */
    --secondary: #89B5A0;
    --secondary-light: #A9CABB;
    --secondary-dark: #6B9D84;
    --secondary-subtle: #E8F3EE;

    /* Backgrounds - Warm, Soft Neutrals */
    --bg-main: #F5F5F5;
    --bg-card: rgba(255, 255, 255, 0.92);
    --bg-elevated: rgba(255, 255, 255, 0.95);
    --bg-subtle: rgba(248, 248, 248, 0.8);

    /* Text Colors - Soft Contrast */
    --text-primary: #2D3748;
    --text-secondary: #64748B;
    --text-muted: #94A3B8;
    --text-inverse: #FFFFFF;

    /* Borders */
    --border-light: #E2E8F0;
    --border-medium: #CBD5E1;

    /* Status Colors - Gentle Tones */
    --success: #48BB78;
    --success-light: #C6F6D5;
    --success-dark: #2F855A;

    --warning: #ED8936;
    --warning-light: #FEEBC8;

    --error: #E57373;
    --error-light: #FED7D7;
    --error-dark: #C53030;

    /* Shadows - Soft and Subtle */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.1);
    --shadow-hover: 0 8px 20px rgba(122, 181, 214, 0.2);

    /* Border Radius - Friendly, Rounded */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;

    /* Spacing */
    --space-xs: 4px;
    --space-sm: 8px;
    --space-md: 16px;
    --space-lg: 24px;
    --space-xl: 32px;
    --space-2xl: 48px;

    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --line-height: 1.6;
    --letter-spacing: -0.01em;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 250ms ease;
    --transition-slow: 350ms ease;
}

/* Dark Mode */
@media (prefers-color-scheme: dark) {
    :root {
        --primary: #6BA3C7;
        --primary-light: #8BBAD6;
        --primary-dark: #4A90B8;
        --primary-subtle: #1E3A4F;

        --bg-main: #0F172A;
        --bg-card: #1E293B;
        --bg-elevated: #273549;
        --bg-subtle: #1E293B;

        --text-primary: #F1F5F9;
        --text-secondary: #94A3B8;
        --text-muted: #64748B;
        --text-inverse: #0F172A;

        --border-light: #334155;
        --border-medium: #475569;

        --success: #68D391;
        --success-light: #1C4532;
        --success-dark: #48BB78;

        --warning: #F6AD55;
        --warning-light: #4A3728;

        --error: #FC8181;
        --error-light: #4A2828;
        --error-dark: #E57373;

        --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
        --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.3);
        --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.4);
        --shadow-hover: 0 8px 20px rgba(107, 163, 199, 0.2);
    }
}

/* ========================================
   BASE STYLES
   ======================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    background-color: var(--bg-main);
    background-image: url('/images/background.jpeg');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    background-attachment: fixed;
    color: var(--text-primary);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    line-height: var(--line-height);
    letter-spacing: var(--letter-spacing);
    padding: var(--space-md);
}

/* ========================================
   TYPOGRAPHY
   ======================================== */
h1 {
    color: var(--text-primary);
    margin-bottom: var(--space-sm);
    font-size: 1.875rem;
    font-weight: 700;
    letter-spacing: -0.02em;
}

h2 {
    color: var(--text-primary);
    margin-bottom: var(--space-md);
    font-size: 1.25rem;
    font-weight: 600;
}

h3 {
    color: var(--text-primary);
    font-size: 1.125rem;
    font-weight: 600;
}

p {
    color: var(--text-secondary);
    margin-bottom: var(--space-lg);
    font-size: 1rem;
    line-height: 1.7;
}

/* ========================================
   CONTAINER
   ======================================== */
.container {
    background-color: var(--bg-card);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: var(--space-xl);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    text-align: center;
    max-width: 480px;
    width: 100%;
    border: 1px solid rgba(255, 255, 255, 0.4);
}

/* ========================================
   BUTTONS
   ======================================== */
.button-group {
    display: flex;
    gap: var(--space-md);
    justify-content: center;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-md) var(--space-lg);
    font-size: 1rem;
    font-weight: 600;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    text-decoration: none;
    transition: all var(--transition-normal);
    gap: var(--space-sm);
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
}

.btn:active {
    transform: translateY(0);
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: white;
    box-shadow: 0 4px 12px rgba(122, 181, 214, 0.3);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--primary-light) 0%, var(--primary) 100%);
    box-shadow: 0 6px 16px rgba(122, 181, 214, 0.4);
}

.btn-secondary {
    background: linear-gradient(135deg, var(--secondary) 0%, var(--secondary-dark) 100%);
    color: white;
    box-shadow: 0 4px 12px rgba(137, 181, 160, 0.3);
}

.btn-secondary:hover {
    background: linear-gradient(135deg, var(--secondary-light) 0%, var(--secondary) 100%);
    box-shadow: 0 6px 16px rgba(137, 181, 160, 0.4);
}

.btn-logout {
    background-color: var(--bg-subtle);
    color: var(--text-secondary);
    padding: var(--space-sm) var(--space-md);
    font-size: 0.875rem;
    border: 1px solid var(--border-light);
}

.btn-logout:hover {
    background-color: var(--error-light);
    color: var(--error-dark);
    border-color: var(--error);
}

.btn-cancel {
    background-color: var(--error);
    color: var(--text-inverse);
    padding: var(--space-sm) var(--space-md);
    font-size: 0.875rem;
}

.btn-cancel:hover {
    background-color: var(--error-dark);
}

/* ========================================
   FORMS
   ======================================== */
.form {
    text-align: left;
    margin-top: var(--space-lg);
}

.form-group {
    margin-bottom: var(--space-lg);
}

.form-group label {
    display: block;
    margin-bottom: var(--space-sm);
    color: var(--text-primary);
    font-weight: 600;
    font-size: 0.875rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: var(--space-md);
    font-size: 1rem;
    font-family: inherit;
    border: 2px solid var(--border-light);
    border-radius: var(--radius-md);
    background-color: var(--bg-card);
    color: var(--text-primary);
    transition: all var(--transition-fast);
}

.form-group input:hover,
.form-group select:hover {
    border-color: var(--border-medium);
}

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

.form-group input::placeholder {
    color: var(--text-muted);
}

.form .btn {
    width: 100%;
    margin-top: var(--space-sm);
}

/* ========================================
   LINKS
   ======================================== */
.links {
    margin-top: var(--space-lg);
    padding-top: var(--space-lg);
    border-top: 1px solid var(--border-light);
}

.links p {
    margin-bottom: var(--space-sm);
    font-size: 0.875rem;
}

.links a {
    color: var(--primary);
    text-decoration: none;
    font-weight: 600;
    transition: color var(--transition-fast);
}

.links a:hover {
    color: var(--primary-dark);
    text-decoration: underline;
}

/* ========================================
   DASHBOARD
   ======================================== */
.dashboard {
    max-width: 800px;
}

.dashboard-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-sm);
}

.dashboard-header h1 {
    font-size: 1.5rem;
}

.dashboard-menu {
    margin-top: var(--space-xl);
}

.dashboard-menu h2 {
    margin-bottom: var(--space-lg);
}

.menu-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-lg);
    margin-top: var(--space-lg);
}

.menu-card {
    background-color: var(--bg-card);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    text-decoration: none;
    color: inherit;
    transition: all var(--transition-normal);
    text-align: center;
    box-shadow: var(--shadow-md);
}

.menu-card:hover {
    transform: translateY(-4px);
    border-color: rgba(122, 181, 214, 0.5);
    box-shadow: var(--shadow-lg);
    background-color: var(--bg-elevated);
}

.menu-icon {
    font-size: 2.5rem;
    margin-bottom: var(--space-md);
}

.menu-card h3 {
    color: var(--text-primary);
    margin-bottom: var(--space-sm);
    font-size: 1.125rem;
}

.menu-card p {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin-bottom: 0;
}

/* ========================================
   CALENDAR
   ======================================== */
.calendar-container {
    margin-top: var(--space-lg);
    max-width: 380px;
    width: 100%;
    margin: var(--space-lg) auto;
    background-color: var(--bg-card);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    box-shadow: var(--shadow-md);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.calendar-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-lg);
}

.calendar-header h2 {
    margin: 0;
    color: var(--text-primary);
    font-size: 1.125rem;
}

.calendar-nav-btn {
    padding: var(--space-sm) var(--space-md);
    font-size: 0.875rem;
    font-weight: 600;
    border: 2px solid var(--border-light);
    border-radius: var(--radius-sm);
    background-color: var(--bg-subtle);
    color: var(--text-primary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.calendar-nav-btn:hover {
    border-color: var(--primary);
    background-color: var(--primary-subtle);
    color: var(--primary);
}

.calendar-weekdays {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 4px;
    margin-bottom: var(--space-sm);
}

.calendar-weekdays div {
    text-align: center;
    font-weight: 600;
    color: var(--text-muted);
    font-size: 0.75rem;
    padding: var(--space-sm) 0;
    text-transform: uppercase;
}

.calendar-days {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 4px;
}

.calendar-day {
    min-height: 42px;
    height: 42px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-primary);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
    position: relative;
}

.calendar-day:hover:not(.empty):not(.past) {
    background-color: var(--primary-subtle);
    color: var(--primary);
}

.calendar-day.empty {
    cursor: default;
}

.calendar-day.today {
    background-color: var(--primary);
    color: var(--text-inverse);
    font-weight: 700;
}

.calendar-day.today:hover {
    background-color: var(--primary-dark);
}

.calendar-day.selected {
    background-color: var(--success);
    color: var(--text-inverse);
    font-weight: 700;
}

.calendar-day.selected:hover {
    background-color: var(--success-dark);
}

.calendar-day.past {
    color: var(--text-muted);
    cursor: not-allowed;
}

.calendar-day.past:hover {
    background-color: transparent;
}

.calendar-day.has-availability::after,
.calendar-day.has-appointments::after {
    content: '';
    position: absolute;
    bottom: 4px;
    left: 50%;
    transform: translateX(-50%);
    width: 6px;
    height: 6px;
    border-radius: var(--radius-full);
}

.calendar-day.has-availability::after {
    background-color: var(--success);
}

.calendar-day.has-appointments::after {
    background-color: var(--primary);
}

.calendar-day.today.has-availability::after,
.calendar-day.selected.has-availability::after,
.calendar-day.today.has-appointments::after,
.calendar-day.selected.has-appointments::after {
    background-color: var(--text-inverse);
}

.calendar-day.past.has-availability::after {
    background-color: var(--text-muted);
}

/* ========================================
   TIME SLOTS
   ======================================== */
.time-slots-section {
    margin-top: var(--space-xl);
    padding: var(--space-lg);
    background-color: var(--bg-card);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-radius: var(--radius-lg);
    border: 1px solid rgba(255, 255, 255, 0.3);
    box-shadow: var(--shadow-md);
}

.time-slots-section h3 {
    color: var(--text-primary);
    margin-bottom: var(--space-xs);
    font-size: 1.125rem;
}

.time-slots-section .hint {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin-bottom: var(--space-md);
}

.time-slots-section .btn {
    margin-top: var(--space-lg);
}

.time-slots-grid {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
    margin-top: var(--space-sm);
}

.time-slot-btn {
    padding: var(--space-sm) var(--space-md);
    font-size: 0.875rem;
    font-weight: 600;
    border: 2px solid var(--border-light);
    border-radius: var(--radius-sm);
    background-color: var(--bg-card);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.time-slot-btn:hover {
    border-color: var(--primary);
    background-color: var(--primary-subtle);
    color: var(--primary);
}

.time-slot-btn.selected {
    background-color: var(--success);
    border-color: var(--success);
    color: var(--text-inverse);
}

.time-slot-btn.selected:hover {
    background-color: var(--success-dark);
    border-color: var(--success-dark);
}

.time-slot-btn.available {
    background-color: var(--primary);
    border-color: var(--primary);
    color: var(--text-inverse);
}

.time-slot-btn.available:hover {
    background-color: var(--primary-dark);
    border-color: var(--primary-dark);
}

.no-slots-message {
    text-align: center;
    padding: var(--space-lg);
    color: var(--text-muted);
    font-style: italic;
}

/* ========================================
   DAY SECTIONS (AVAILABILITY)
   ======================================== */
.day-section {
    margin-bottom: var(--space-lg);
    padding: var(--space-md);
    background-color: var(--bg-subtle);
    border-radius: var(--radius-md);
    border: 2px solid var(--border-light);
}

.day-section-header {
    display: flex;
    align-items: center;
    margin-bottom: var(--space-sm);
}

.day-section-header input[type="checkbox"] {
    width: 20px;
    height: 20px;
    margin-right: var(--space-md);
    cursor: pointer;
    accent-color: var(--primary);
}

.day-section-header .day-name {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 1rem;
}

.day-section.disabled .time-slots-grid {
    opacity: 0.4;
    pointer-events: none;
}

/* ========================================
   AVAILABILITY FORM (LEGACY SUPPORT)
   ======================================== */
.availability-form {
    margin-top: var(--space-xl);
}

.day-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-md);
    margin-bottom: var(--space-sm);
    background-color: var(--bg-subtle);
    border-radius: var(--radius-md);
    border: 2px solid var(--border-light);
}

.day-checkbox {
    display: flex;
    align-items: center;
    cursor: pointer;
}

.day-checkbox input[type="checkbox"] {
    width: 20px;
    height: 20px;
    margin-right: var(--space-md);
    cursor: pointer;
    accent-color: var(--primary);
}

.day-name {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 1rem;
    min-width: 100px;
}

.time-inputs {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.time-inputs input[type="time"] {
    padding: var(--space-sm) var(--space-md);
    font-size: 0.875rem;
    border: 2px solid var(--border-light);
    border-radius: var(--radius-sm);
    background-color: var(--bg-card);
    color: var(--text-primary);
    width: auto;
}

.time-inputs input[type="time"]:focus {
    outline: none;
    border-color: var(--primary);
}

.time-inputs input[type="time"]:disabled {
    background-color: var(--bg-subtle);
    color: var(--text-muted);
    cursor: not-allowed;
}

.time-inputs span {
    color: var(--text-muted);
    font-size: 0.875rem;
}

/* ========================================
   STATUS MESSAGES
   ======================================== */
.status-message {
    padding: var(--space-md);
    border-radius: var(--radius-md);
    margin: var(--space-lg) 0;
    text-align: center;
    font-weight: 600;
}

.status-message.success {
    background-color: var(--success-light);
    color: var(--success-dark);
    border: 1px solid var(--success);
}

.status-message.error {
    background-color: var(--error-light);
    color: var(--error-dark);
    border: 1px solid var(--error);
}

/* ========================================
   MODAL
   ======================================== */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    padding: var(--space-md);
}

.modal-content {
    background-color: var(--bg-card);
    padding: var(--space-xl);
    border-radius: var(--radius-xl);
    max-width: 420px;
    width: 100%;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-light);
}

.modal-content h3 {
    color: var(--text-primary);
    margin-bottom: var(--space-md);
}

.modal-content p {
    color: var(--text-secondary);
    margin-bottom: var(--space-sm);
}

.booking-details {
    background-color: var(--bg-subtle);
    padding: var(--space-md);
    border-radius: var(--radius-md);
    margin: var(--space-md) 0;
    color: var(--text-primary);
    border-left: 4px solid var(--primary);
}

.modal-buttons {
    display: flex;
    gap: var(--space-sm);
    margin-top: var(--space-lg);
}

.modal-buttons .btn {
    flex: 1;
}

/* ========================================
   APPOINTMENTS LIST
   ======================================== */
.appointments-section {
    margin-top: var(--space-xl);
}

.appointments-section h2 {
    color: var(--text-primary);
    font-size: 1.25rem;
    margin-bottom: var(--space-md);
    padding-bottom: var(--space-sm);
    border-bottom: 2px solid var(--border-light);
}

.appointments-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.appointments-list .loading,
.appointments-list .no-appointments,
.appointments-list .error {
    color: var(--text-muted);
    font-style: italic;
    padding: var(--space-lg);
    text-align: center;
}

.appointments-list .error {
    color: var(--error);
}

.appointment-card {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-lg);
    background-color: var(--bg-card);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: var(--radius-lg);
    gap: var(--space-md);
    transition: all var(--transition-fast);
    box-shadow: var(--shadow-md);
}

.appointment-card:hover {
    border-color: rgba(122, 181, 214, 0.5);
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

.appointment-info {
    flex: 1;
}

.appointment-date {
    font-weight: 700;
    color: var(--text-primary);
    font-size: 1rem;
    margin-bottom: var(--space-xs);
}

.appointment-time {
    color: var(--primary);
    font-weight: 600;
    margin-bottom: var(--space-xs);
}

.appointment-professional,
.appointment-patient {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.appointment-contact {
    color: var(--text-muted);
    font-size: 0.8125rem;
    margin-top: var(--space-xs);
}

.appointment-time-badge {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: var(--text-inverse);
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-md);
    font-size: 1.125rem;
    font-weight: 700;
    min-width: 70px;
    text-align: center;
}

/* Appointment Status Badges */
.appointment-status {
    padding: var(--space-xs) var(--space-md);
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.status-confirmed {
    background-color: var(--success-light);
    color: var(--success-dark);
}

.status-pending {
    background-color: var(--warning-light);
    color: var(--warning);
}

.status-cancelled {
    background-color: var(--error-light);
    color: var(--error-dark);
}

.status-completed {
    background-color: var(--bg-subtle);
    color: var(--text-secondary);
}

/* Cancelled Appointment */
.appointment-cancelled {
    opacity: 0.6;
    background-color: var(--bg-subtle);
    border-left: 4px solid var(--error);
}

.appointment-cancelled .appointment-date,
.appointment-cancelled .appointment-time,
.appointment-cancelled .appointment-professional {
    color: var(--text-muted);
}

/* Appointment Actions */
.appointment-actions {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: var(--space-sm);
}

/* ========================================
   RECURRENCE OPTIONS
   ======================================== */
.recurrence-options {
    margin: var(--space-lg) 0;
    padding: var(--space-md);
    background-color: var(--bg-subtle);
    border-radius: var(--radius-md);
}

.recurrence-options p {
    color: var(--text-primary);
    margin-bottom: var(--space-md);
    font-weight: 600;
}

.recurrence-buttons {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.recurrence-option {
    display: flex;
    align-items: center;
    padding: var(--space-sm) var(--space-md);
    background-color: var(--bg-card);
    border: 2px solid var(--border-light);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.recurrence-option:hover {
    border-color: var(--primary);
}

.recurrence-option input[type="radio"] {
    width: 18px;
    height: 18px;
    margin-right: var(--space-sm);
    cursor: pointer;
    accent-color: var(--primary);
}

.recurrence-option span {
    color: var(--text-primary);
    font-size: 0.875rem;
}

.recurrence-option:has(input:checked) {
    border-color: var(--primary);
    background-color: var(--primary-subtle);
}

/* Weeks Dropdown */
.weeks-dropdown-container {
    margin-top: var(--space-md);
    padding: var(--space-md);
    background-color: var(--bg-subtle);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.weeks-dropdown-container label {
    font-weight: 600;
    color: var(--text-primary);
}

.weeks-dropdown {
    padding: var(--space-sm) var(--space-md);
    font-size: 0.875rem;
    border: 2px solid var(--border-light);
    border-radius: var(--radius-sm);
    background-color: var(--bg-card);
    color: var(--text-primary);
    cursor: pointer;
    min-width: 120px;
}

.weeks-dropdown:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-subtle);
}

/* Cancel Options */
.cancel-options {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
    margin: var(--space-lg) 0;
}

.btn-cancel-option {
    padding: var(--space-md) var(--space-lg);
    font-size: 0.875rem;
    font-weight: 600;
    border: 2px solid var(--error);
    background-color: var(--bg-card);
    color: var(--error);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn-cancel-option:hover {
    background-color: var(--error);
    color: var(--text-inverse);
}

.btn-cancel-all {
    border-color: var(--error-dark);
    color: var(--error-dark);
}

.btn-cancel-all:hover {
    background-color: var(--error-dark);
    color: var(--text-inverse);
}

/* ========================================
   PATIENT SELECTION
   ======================================== */
.patient-selection {
    margin-bottom: var(--space-lg);
    padding: var(--space-lg);
    background-color: var(--bg-subtle);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-light);
}

.patient-selection label {
    display: block;
    margin-bottom: var(--space-sm);
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
}

.patient-dropdown {
    width: 100%;
    max-width: 400px;
    padding: var(--space-md);
    font-size: 1rem;
    border: 2px solid var(--border-light);
    border-radius: var(--radius-md);
    background-color: var(--bg-card);
    color: var(--text-primary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.patient-dropdown:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 4px var(--primary-subtle);
}

.patient-dropdown:hover {
    border-color: var(--border-medium);
}

/* ========================================
   YEAR/MONTH SELECTOR
   ======================================== */
.month-year-selector {
    display: flex;
    gap: var(--space-sm);
    margin-bottom: var(--space-md);
}

.year-dropdown,
.month-dropdown {
    padding: var(--space-sm) var(--space-md);
    font-size: 0.875rem;
    border: 2px solid var(--border-light);
    border-radius: var(--radius-md);
    background-color: var(--bg-card);
    color: var(--text-primary);
    cursor: pointer;
    min-width: 130px;
    transition: all var(--transition-fast);
}

.year-dropdown:focus,
.month-dropdown:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-subtle);
}

.year-dropdown:hover:not(:disabled),
.month-dropdown:hover:not(:disabled) {
    border-color: var(--border-medium);
}

.month-dropdown:disabled {
    background-color: var(--bg-subtle);
    cursor: not-allowed;
    opacity: 0.6;
}

/* ========================================
   PAID TOGGLE
   ======================================== */
.paid-toggle {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    cursor: pointer;
    padding: var(--space-xs) var(--space-md);
    border-radius: var(--radius-full);
    background-color: var(--bg-subtle);
    transition: all var(--transition-fast);
    font-size: 0.8125rem;
}

.paid-toggle:hover:not(.disabled) {
    background-color: var(--border-light);
}

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

.paid-toggle input[type="checkbox"] {
    width: 16px;
    height: 16px;
    cursor: pointer;
    accent-color: var(--success);
}

.paid-toggle input[type="checkbox"]:disabled {
    cursor: not-allowed;
}

.paid-toggle:has(input:checked) {
    background-color: var(--success-light);
}

.paid-toggle:has(input:checked) .paid-label {
    color: var(--success-dark);
    font-weight: 600;
}

.paid-label {
    color: var(--text-secondary);
    user-select: none;
}

/* ========================================
   PAYMENT SUMMARY
   ======================================== */
.payment-summary {
    display: flex;
    justify-content: center;
    gap: var(--space-md);
    margin-bottom: var(--space-xl);
}

.summary-card {
    padding: var(--space-lg);
    border-radius: var(--radius-lg);
    text-align: center;
    border: 2px solid var(--border-light);
    background-color: var(--bg-subtle);
}

.summary-label {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: var(--space-sm);
    font-weight: 500;
}

.summary-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
}

.summary-total {
    background-color: var(--bg-subtle);
    border-color: var(--border-light);
}

.summary-paid {
    background-color: var(--success-light);
    border-color: var(--success);
}

.summary-paid .summary-value {
    color: var(--success-dark);
}

.summary-unpaid {
    background-color: var(--error-light);
    border-color: var(--error);
}

.summary-unpaid .summary-value {
    color: var(--error-dark);
}

/* Payment Card Layout */
.payment-card {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.payment-card-left {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.payment-card-right {
    display: flex;
    align-items: center;
}

/* ========================================
   PROFILE SECTIONS
   ======================================== */
.profile-section {
    margin-top: var(--space-xl);
    padding: var(--space-lg);
    background-color: var(--bg-card);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-radius: var(--radius-lg);
    border: 1px solid rgba(255, 255, 255, 0.3);
    box-shadow: var(--shadow-md);
}

.profile-section h3 {
    margin-bottom: var(--space-lg);
    color: var(--text-primary);
    border-bottom: 2px solid var(--border-light);
    padding-bottom: var(--space-md);
}

.profile-section .form-group label {
    color: var(--text-primary);
}

.profile-section .form-group input {
    background-color: var(--bg-card);
    color: var(--text-primary);
    border-color: var(--border-medium);
}

.profile-section .form-group input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 4px var(--primary-subtle);
}

.password-requirements {
    font-size: 0.75rem;
    color: var(--text-secondary);
    margin-top: var(--space-sm);
    padding: var(--space-md);
    background-color: var(--bg-card);
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-light);
}

.password-requirements ul {
    margin: var(--space-sm) 0 0 var(--space-lg);
    padding: 0;
}

.password-requirements li {
    margin: var(--space-xs) 0;
    color: var(--text-muted);
}

.password-requirements li.valid {
    color: var(--success);
}

.password-requirements li.invalid {
    color: var(--error);
}

.success-message {
    background-color: var(--success-light);
    color: var(--success-dark);
    padding: var(--space-md);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-lg);
    border: 1px solid var(--success);
    display: none;
}

.error-message {
    background-color: var(--error-light);
    color: var(--error-dark);
    padding: var(--space-md);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-lg);
    border: 1px solid var(--error);
    display: none;
}

/* ========================================
   STATUS PAGES (PENDING/REJECTED/REVOKED)
   ======================================== */
.status-page {
    text-align: center;
    padding: var(--space-2xl) var(--space-lg);
}

.status-icon {
    font-size: 5rem;
    margin-bottom: var(--space-lg);
}

.status-icon.pending {
    color: var(--warning);
}

.status-icon.rejected {
    color: var(--error);
}

.status-icon.revoked {
    color: var(--text-muted);
}

.status-page h2 {
    margin-bottom: var(--space-lg);
}

.status-page p {
    color: var(--text-secondary);
    margin-bottom: var(--space-md);
    line-height: 1.7;
}

/* ========================================
   PENDING PATIENTS LIST
   ======================================== */
.pending-patient-card {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-lg);
    background-color: var(--warning-light);
    border: 2px solid var(--warning);
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-md);
}

.approved-patient-card {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-lg);
    background-color: var(--success-light);
    border: 2px solid var(--success);
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-md);
}

.patient-info {
    flex: 1;
}

.patient-name {
    font-weight: 700;
    color: var(--text-primary);
    font-size: 1rem;
    margin-bottom: var(--space-xs);
}

.patient-email {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin-bottom: var(--space-xs);
}

.patient-phone {
    color: var(--text-muted);
    font-size: 0.875rem;
}

.patient-actions {
    display: flex;
    gap: var(--space-sm);
}

.btn-approve {
    background-color: var(--success);
    color: var(--text-inverse);
    padding: var(--space-sm) var(--space-md);
    font-size: 0.875rem;
    font-weight: 600;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn-approve:hover {
    background-color: var(--success-dark);
}

.btn-reject {
    background-color: var(--error);
    color: var(--text-inverse);
    padding: var(--space-sm) var(--space-md);
    font-size: 0.875rem;
    font-weight: 600;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn-reject:hover {
    background-color: var(--error-dark);
}

.btn-revoke {
    background-color: var(--text-muted);
    color: var(--text-inverse);
    padding: var(--space-sm) var(--space-md);
    font-size: 0.875rem;
    font-weight: 600;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn-revoke:hover {
    background-color: var(--text-secondary);
}

.no-pending {
    text-align: center;
    padding: var(--space-2xl);
    color: var(--text-muted);
    font-style: italic;
}

/* ========================================
   PENDING MESSAGE (REGISTRATION)
   ======================================== */
.pending-message {
    text-align: center;
    padding: var(--space-xl) var(--space-lg);
}

.pending-icon {
    font-size: 4rem;
    margin-bottom: var(--space-lg);
    color: var(--warning);
}

.pending-message h2 {
    color: var(--warning);
    margin-bottom: var(--space-lg);
}

.pending-message p {
    color: var(--text-secondary);
    margin-bottom: var(--space-md);
    line-height: 1.7;
}

/* ========================================
   RESPONSIVE DESIGN
   ======================================== */
@media (max-width: 768px) {
    body {
        align-items: flex-start;
        padding: var(--space-sm);
        padding-top: var(--space-md);
    }

    .container {
        padding: var(--space-lg) var(--space-md);
        border-radius: var(--radius-lg);
        max-width: 100%;
    }

    h1 {
        font-size: 1.375rem;
    }

    h2 {
        font-size: 1.125rem;
    }

    p {
        font-size: 0.9375rem;
        margin-bottom: var(--space-md);
    }

    .dashboard {
        max-width: 100%;
    }

    .dashboard-header {
        flex-direction: column;
        gap: var(--space-md);
        text-align: center;
    }

    .menu-grid {
        grid-template-columns: 1fr;
    }

    .appointment-card {
        flex-direction: column;
        align-items: flex-start;
    }

    .appointment-actions {
        width: 100%;
        flex-direction: row;
        justify-content: flex-end;
        margin-top: var(--space-sm);
    }

    .payment-summary {
        flex-direction: column;
        align-items: center;
    }

    .payment-card {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--space-md);
    }

    .payment-card-left {
        width: 100%;
    }

    .payment-card-right {
        width: 100%;
        justify-content: flex-end;
    }

    .pending-patient-card,
    .approved-patient-card {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--space-md);
    }

    .patient-actions {
        width: 100%;
    }

    .patient-actions .btn {
        flex: 1;
    }

    .month-year-selector {
        flex-direction: column;
    }

    .year-dropdown,
    .month-dropdown {
        width: 100%;
    }

    .form-group {
        margin-bottom: var(--space-md);
    }

    .form-group input,
    .form-group select,
    .form-group textarea {
        padding: var(--space-sm) var(--space-md);
        font-size: 0.9375rem;
    }

    .form-group label {
        font-size: 0.8125rem;
        margin-bottom: var(--space-xs);
    }

    .btn {
        padding: var(--space-sm) var(--space-md);
        font-size: 0.9375rem;
    }

    .links p {
        font-size: 0.8125rem;
    }
}

/* ========================================
   ANIMATIONS
   ======================================== */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.container {
    animation: fadeIn 0.3s ease-out;
}

.menu-card {
    animation: fadeIn 0.3s ease-out;
}

.appointment-card {
    animation: fadeIn 0.2s ease-out;
}

/* ========================================
   HOME PAGE STYLES
   ======================================== */
.welcome-header {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-bottom: var(--space-xl);
}

.app-logo {
    margin-bottom: var(--space-md);
}

.app-title {
    font-size: 1.75rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
    letter-spacing: -0.02em;
}

.welcome-title {
    font-size: 1.625rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-md);
    line-height: 1.3;
    text-align: center;
}

.welcome-subtitle {
    font-size: 1rem;
    color: var(--text-secondary);
    margin-bottom: var(--space-xl);
    text-align: center;
}

.home-button-group {
    display: flex;
    gap: var(--space-lg);
    justify-content: center;
    margin-top: var(--space-lg);
}

.home-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--space-xl) var(--space-lg);
    min-width: 160px;
    border-radius: var(--radius-lg);
    text-decoration: none;
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-md);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.home-btn span {
    font-size: 1rem;
    font-weight: 600;
    color: white;
    margin-top: var(--space-md);
}

.home-btn:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
}

.home-btn-icon {
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.patient-btn {
    background: linear-gradient(135deg, var(--secondary) 0%, var(--secondary-dark) 100%);
}

.patient-btn:hover {
    background: linear-gradient(135deg, var(--secondary-light) 0%, var(--secondary) 100%);
}

.professional-btn {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
}

.professional-btn:hover {
    background: linear-gradient(135deg, var(--primary-light) 0%, var(--primary) 100%);
}

@media (max-width: 768px) {
    .app-logo svg {
        width: 48px;
        height: 48px;
    }

    .app-title {
        font-size: 1.375rem;
    }

    .welcome-title {
        font-size: 1.25rem;
        margin-bottom: var(--space-sm);
    }

    .welcome-subtitle {
        font-size: 0.875rem;
        margin-bottom: var(--space-md);
    }

    .home-button-group {
        flex-direction: row;
        gap: var(--space-md);
        margin-top: var(--space-md);
    }

    .home-btn {
        flex: 1;
        min-width: auto;
        padding: var(--space-lg) var(--space-sm);
    }

    .home-btn-icon {
        width: 48px;
        height: 48px;
    }

    .home-btn-icon svg {
        width: 36px;
        height: 36px;
    }

    .home-btn span {
        font-size: 0.875rem;
        margin-top: var(--space-sm);
    }
}