/* ===========================================
   STREAMLINED UNIFIED STYLES FÜR TEACHER & STUDENT
   =========================================== */

/* === CSS CUSTOM PROPERTIES - Sherwin-Williams Inspired === */
:root {
    /* Primary Colors - Minimalist */
    --color-primary: #2B2B2B;
    --color-primary-dark: #1a1a1a;
    --color-primary-light: #616161;
    --color-secondary: #2B2B2B;
    --color-secondary-dark: #1a1a1a;
    --color-accent: #757575;
    --color-accent-dark: #616161;

    /* Semantic Colors - Desaturated */
    --color-success: #A8C5B8;
    --color-success-dark: #8FB0A1;
    --color-danger: #C5A8A8;
    --color-danger-dark: #B09090;
    --color-warning: #C5BDA8;
    --color-warning-dark: #B0A890;
    --color-info: #A8B5C5;
    --color-info-dark: #90A1B0;

    /* Student Colors */
    --color-student-primary: #2B2B2B;
    --color-student-primary-dark: #1a1a1a;
    --color-student-accent: #757575;
    --color-student-accent-dark: #616161;

    /* Neutral Colors - Natural Minimalist */
    --color-white: #FFFFFF;
    --color-snow: #F7F7F5;
    --color-gray-50: #FAFAFA;
    --color-gray-100: #F5F5F5;
    --color-gray-200: #EEEEEE;
    --color-gray-300: #E0E0E0;
    --color-gray-400: #BDBDBD;
    --color-gray-500: #9E9E9E;
    --color-gray-600: #757575;
    --color-gray-700: #616161;
    --color-gray-800: #424242;
    --color-gray-900: #2B2B2B;

    /* Warm Neutrals */
    --color-beige-light: #F5F2ED;
    --color-beige: #E8E2D8;
    --color-taupe: #AFA99E;
    
    /* Typography - Minimal Design */
    --font-family-base: 'Inter Tight', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --font-family-mono: 'JetBrains Mono', 'Fira Code', 'Cascadia Code', 'SF Mono', Monaco, Consolas, monospace;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 0.875rem;
    --font-size-lg: 1rem;
    --font-size-xl: 1.125rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    
    /* Spacing - Minimal Design */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: clamp(1.25rem, 3vw, 3.125rem);
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    --space-16: 4rem;
    --space-20: 5rem;
    --gutter: clamp(1.25rem, 3vw, 3.125rem);
    --pad-inner: 3.25rem;
    
    /* Border Radius - Minimal Design */
    --radius-sm: 2px;
    --radius-base: 0;
    --radius-lg: 0;
    --radius-xl: 0;
    --radius-2xl: 0;
    --radius-normal: 0;
    --radius-large: 0;
    --radius-button: 0;
    --radius-full: 50%;
    
    /* Shadows - Minimal Design */
    --shadow-sm: 0 0 6px rgba(0, 0, 0, 0.1);
    --shadow-base: 0 0 6px rgba(0, 0, 0, 0.15);
    --shadow-md: 0 0 6px rgba(0, 0, 0, 0.2);
    --shadow-lg: 0 2px 8px rgba(0, 0, 0, 0.15);
    --shadow-xl: 0 4px 16px rgba(0, 0, 0, 0.2);
    --border-thin: 0.5px;

    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* === GLOBAL RESET & BASE === */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    line-height: 1.5;
    -webkit-text-size-adjust: 100%;
    font-feature-settings: normal;
    font-variation-settings: normal;
}

body {
    font-family: var(--font-family-base);
    font-size: var(--font-size-base);
    line-height: 2;
    color: var(--color-gray-900);
    background-color: var(--color-gray-50);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* === USER TYPE VARIANTS === */
body.teacher {
    --current-primary: var(--color-primary);
    --current-primary-dark: var(--color-primary-dark);
    --current-accent: var(--color-accent);
}

body.student {
    --current-primary: var(--color-student-primary);
    --current-primary-dark: var(--color-student-primary-dark);
    --current-accent: var(--color-student-accent);
}

body:not(.teacher):not(.student) {
    --current-primary: var(--color-primary);
    --current-primary-dark: var(--color-primary-dark);
    --current-accent: var(--color-accent);
}

/* === LAYOUT === */
#content {
    display: flex;
    min-height: calc(100vh - 5rem);
    background-color: var(--color-gray-50);
    gap: var(--space-6);
    align-items: flex-start; /* Wichtig für sticky sidebar */
    overflow: visible; /* Erlaubt sticky positioning */
}

.container, main {
    max-width: 50rem;
    margin: 0 auto;
    padding: var(--space-6);
}

.container.profile {
    max-width: 75rem;
}

/* === HEADER & NAVIGATION === */
header, .navbar-placeholder {
    background: #FFFFFF;
    color: #2B2B2B;
    padding: var(--space-4) var(--space-6);
    box-shadow: 0 1px 0 0 #EEEEEE;
    backdrop-filter: none;
    text-align: center;
    border-bottom: 1px solid #EEEEEE;
}

body.teacher header {
    background: #FFFFFF;
    color: #2B2B2B;
}

body.student header {
    background: #FFFFFF;
    color: #2B2B2B;
}

header h1 {
    font-size: clamp(var(--font-size-xl), 4vw, var(--font-size-3xl));
    font-weight: 700;
    letter-spacing: -0.025em;
    margin-bottom: var(--space-2);
}

nav {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
    align-items: center;
    justify-content: flex-start;
    margin-top: var(--space-4);
}

nav a, nav button {
    margin: 0;
    padding: 0.625rem 1.25rem;
    background: #FFFFFF;
    color: #2B2B2B;
    border: 1px solid transparent;
    border-radius: 0;
    font-weight: 500;
    text-decoration: none;
    transition: all var(--transition-base);
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

nav a:hover, nav button:hover {
    background: #FFFFFF;
    color: #2B2B2B;
    border-color: transparent;
}

nav a.active, nav button.active {
    background: #FFFFFF;
    color: #2B2B2B;
    border: 2px solid #2B2B2B;
}

header #edit-profile-btn {
    display: inline-block;
    margin: var(--space-4) 0 0 0;
    padding: var(--space-2) var(--space-4);
    font-size: var(--font-size-sm);
    background: #FFFFFF;
    color: #2B2B2B;
    border: 1px solid #2B2B2B;
    backdrop-filter: none;
    transition: all var(--transition-base);
    position: relative;
    left: calc(-50% + var(--space-6));
}

header #edit-profile-btn:hover {
    background: #2B2B2B;
    color: #FFFFFF;
    border-color: #2B2B2B;
    transform: translateY(-1px);
}

/* === HOMEPAGE === */
body.homepage {
    background: var(--color-gray-50);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.homepage header {
    text-align: center;
    padding: var(--space-12) var(--space-6);
    background: #FFFFFF;
    color: #2B2B2B;
}

.homepage header h1 {
    font-size: clamp(var(--font-size-4xl), 8vw, 5rem);
    font-weight: 800;
    margin-bottom: var(--space-4);
    text-shadow: none;
    color: #2B2B2B;
}

.homepage header p {
    font-size: clamp(var(--font-size-lg), 3vw, var(--font-size-2xl));
    font-weight: 400;
    opacity: 0.7;
    color: #616161;
}

.homepage main {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--space-12) var(--space-6);
    gap: var(--space-6);
    max-width: 40rem;
}

.homepage footer {
    text-align: center;
    padding: var(--space-8);
    color: var(--color-gray-500);
    font-size: var(--font-size-sm);
}

/* === BUTTONS - Hierarchical Minimal Design === */

/* Base Button Styles */
button, .btn, .primary-btn, .secondary-btn, .tertiary-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: 0.75rem 1.5rem;
    font-size: var(--font-size-base);
    font-weight: 500;
    line-height: 1.2;
    cursor: pointer;
    text-decoration: none;
    transition: all var(--transition-base);
    white-space: nowrap;
    user-select: none;
    position: relative;
    min-height: 44px;
    border-radius: 0;
}

/* Primary Buttons - Main Actions */
.primary-btn, button.primary-btn, button[type="submit"] {
    background: #2B2B2B;
    color: #FFFFFF;
    border: 2px solid #2B2B2B;
    font-weight: 600;
}

.primary-btn:hover, button.primary-btn:hover, button[type="submit"]:hover {
    background: #424242;
    border-color: #424242;
}

.primary-btn:active, button.primary-btn:active, button[type="submit"]:active {
    background: #1a1a1a;
    border-color: #1a1a1a;
}

/* Secondary Buttons - Secondary Actions */
.secondary-btn, button.secondary-btn {
    background: #FFFFFF;
    color: #2B2B2B;
    border: 1px solid #2B2B2B;
    font-weight: 500;
}

.secondary-btn:hover, button.secondary-btn:hover {
    background: #2B2B2B;
    color: #FFFFFF;
}

.secondary-btn:active, button.secondary-btn:active {
    background: #1a1a1a;
    color: #FFFFFF;
}

/* Tertiary Buttons - Minimal Actions */
.tertiary-btn, button.tertiary-btn {
    background: transparent;
    color: #616161;
    border: none;
    padding: 0.5rem 1rem;
    text-decoration: underline;
    font-weight: 400;
}

.tertiary-btn:hover, button.tertiary-btn:hover {
    color: #2B2B2B;
    text-decoration: none;
}

/* Disabled State */
button:disabled, .btn:disabled,
.primary-btn:disabled, .secondary-btn:disabled, .tertiary-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    pointer-events: none;
}

/* Button with Icon */
.btn-with-icon {
    gap: 0.5rem;
}

.btn-with-icon svg {
    width: 16px;
    height: 16px;
}

/* === BUTTON STATES === */

/* Loading State */
.btn-loading, button.loading {
    color: transparent;
    pointer-events: none;
    position: relative;
}

.btn-loading::after, button.loading::after {
    content: "";
    position: absolute;
    width: 16px;
    height: 16px;
    top: 50%;
    left: 50%;
    margin-left: -8px;
    margin-top: -8px;
    border: 2px solid rgba(189, 189, 189, 0.3);
    border-top-color: #2B2B2B;
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

.primary-btn.btn-loading::after, button.primary-btn.loading::after {
    border-color: rgba(255, 255, 255, 0.3);
    border-top-color: #FFFFFF;
}

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

/* Success State */
.btn-success, button.success {
    background: #A8C5B8;
    color: #2B2B2B;
    border-color: #A8C5B8;
}

.btn-success:hover, button.success:hover {
    background: #8FB0A1;
    border-color: #8FB0A1;
}

/* Error State */
.btn-error, button.error {
    background: #C5A8A8;
    color: #2B2B2B;
    border-color: #C5A8A8;
}

.btn-error:hover, button.error:hover {
    background: #B09090;
    border-color: #B09090;
}

/* Warning State */
.btn-warning, button.warning {
    background: #C5BDA8;
    color: #2B2B2B;
    border-color: #C5BDA8;
}

/* === SIDEBAR === */
#sidebar {
    width: 16rem;
    min-width: 14rem;
    padding: var(--space-4);
    background: var(--color-white);
    border-radius: 0;
    box-shadow: none;
    border: 1px solid #EEEEEE;
    height: auto; /* Automatische Höhe basierend auf Inhalt */
    position: -webkit-sticky !important;
    position: sticky !important;
    top: 20px !important;
    align-self: flex-start !important;
    max-height: calc(100vh - 40px) !important;
    overflow-y: auto !important;
    z-index: 100 !important;
}

#sidebar button {
    width: 100%;
    padding: 0.625rem 1rem;
    margin-bottom: var(--space-2);
    border-radius: 0;
    background: #FFFFFF;
    color: #2B2B2B;
    border: 1px solid #2B2B2B;
    font-size: var(--font-size-sm);
    font-weight: 500;
    transition: all var(--transition-base);
}

#sidebar button.active {
    background: #2B2B2B;
    color: #FFFFFF;
    border-color: #2B2B2B;
}

#sidebar button:hover:not(.active) {
    background: #F5F5F5;
    border-color: #2B2B2B;
}

#sidebar label {
    display: block;
    margin: var(--space-5) 0 var(--space-3) 0;
    font-weight: 600;
    font-size: var(--font-size-sm);
    color: var(--color-gray-700);
}

/* === MAIN CONTENT === */
#main {
    flex: 1;
    padding-right: var(--space-8);
    padding-bottom: var(--space-8);
    padding-top: 0;
    padding-left: 0;
    background: var(--color-white);
    border-radius: var(--radius-normal);
    box-shadow: none;
    border: var(--border-thin, 0.5px) solid var(--color-gray-200);
    margin: 0;
    min-width: 0;
    overflow-x: auto;
}

.container.profile #main,
.section #main {
    min-width: 53.125rem;
    overflow-x: auto;
    padding: var(--space-4);
}

/* === CALENDAR - Minimal Design === */
#calendar-container {
    position: relative;
    /* max-height entfernt - Body scrollt, damit Sidebar sticky funktioniert */
    min-height: calc(100vh - 200px);
    overflow-y: visible;
    overflow-x: auto;
    border: var(--border-thin, 0.5px) solid var(--color-gray-200);
    border-radius: var(--radius-normal);
    background: var(--color-white);
}

#calendar-container::-webkit-scrollbar {
    width: 0.5rem;
    height: 0.5rem;
}

#calendar-container::-webkit-scrollbar-track {
    background: var(--color-gray-100);
    border-radius: var(--radius-base);
}

#calendar-container::-webkit-scrollbar-thumb {
    background: var(--color-gray-400);
    border-radius: var(--radius-base);
}

#calendar-container::-webkit-scrollbar-thumb:hover {
    background: var(--color-gray-500);
}

/* === TABLES - Minimal Design === */
table, #calendar-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    margin-top: var(--space-6);
    border-radius: 3px;
    overflow: visible;  /* 🔧 FIX: overflow:hidden verhindert sticky positioning! */
    box-shadow: none;
    border: var(--border-thin, 0.5px) solid var(--color-gray-200);
    font-size: var(--font-size-xs);
}

/* 🔧 FIX: THEAD muss sticky sein innerhalb scrollable container */
#calendar-table thead {
    position: -webkit-sticky;
    position: sticky;
    top: 0;
    z-index: 1001;
    background: var(--color-white);
}

#calendar-table thead tr {
    background: var(--color-white);
}

th, td {
    padding: var(--space-2);
    text-align: center;
    font-size: var(--font-size-xs);
    vertical-align: middle;
    border-bottom: 1px solid var(--color-gray-200);
    transition: background-color var(--transition-fast);
    min-height: 1.5625rem;
}

th {
    background: var(--color-gray-100);
    color: var(--color-gray-800);
    font-weight: 600;
    font-size: var(--font-size-xs);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: var(--space-2) var(--space-1);
    position: sticky;
    top: 0;
    z-index: 999;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

th:first-child, td:first-child {
    position: sticky;
    left: 0;
    background: var(--color-gray-50);
    font-weight: 600;
    color: var(--color-gray-700);
    min-width: 3.75rem;
    border-right: 1px solid var(--color-gray-200);
    z-index: 998;
    box-shadow: 2px 0 4px rgba(0, 0, 0, 0.05);
}

thead th:first-child {
    z-index: 1000;
    background: var(--color-gray-100);
}

tbody tr:hover {
    background-color: rgba(var(--current-primary), 0.05);
}

tbody td:hover {
    background-color: rgba(var(--current-primary), 0.1) !important;
    cursor: pointer;
    transform: scale(1.01);
}

/* === CALENDAR STATUS COLORS === */
.available {
    background: #4CAF50 !important;
    color: #FFFFFF;
    border-radius: 2px;
    opacity: 1;
    font-weight: 500;
}

.blocked {
    background: #FFFFFF !important;
    color: #616161;
    border-radius: 2px;
    opacity: 1;
    font-weight: 500;
    border: 1px solid #EEEEEE;
}

.personal {
    background: #9C27B0 !important;
    color: #FFFFFF;
    border-radius: 2px;
    opacity: 1;
    font-weight: 500;
}

.timeout {
    background: #FF9800 !important;
    color: #FFFFFF;
    border-radius: 2px;
    opacity: 1;
    font-weight: 500;
}

.booked {
    background: #00BCD4 !important;
    color: #FFFFFF;
    border-radius: 2px;
    opacity: 1;
    font-weight: 500;
}

.readonly-available { 
    background: #c8e6c9;
    border-radius: var(--radius-sm);
    opacity: 0.8;
}

.readonly-blocked { 
    background: #ffcdd2;
    border-radius: var(--radius-sm);
    opacity: 0.8;
}

.readonly-timeout { 
    background: #fff9c4;
    border-radius: var(--radius-sm);
    opacity: 0.8;
}

.readonly-personal { 
    background: #e1bee7;
    border-radius: var(--radius-sm);
    opacity: 0.8;
}

/* === CALENDAR INTERACTION STATES === */

/* Hover States for Clickable Cells */
.available:hover,
.calendar-cell.available:hover {
    background: #388E3C !important;
    cursor: pointer;
    transform: scale(1.03);
    transition: all 0.15s ease;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
    z-index: 5;
    position: relative;
}

.booked:hover,
.calendar-cell.booked:hover {
    background: #0097A7 !important;
    cursor: pointer;
    transform: scale(1.03);
    transition: all 0.15s ease;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
    z-index: 5;
}

.personal:hover,
.calendar-cell.personal:hover {
    background: #7B1FA2 !important;
    cursor: pointer;
    transform: scale(1.03);
    transition: all 0.15s ease;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
    z-index: 5;
}

.timeout:hover,
.calendar-cell.timeout:hover {
    background: #F57C00 !important;
    cursor: pointer;
    transform: scale(1.03);
    transition: all 0.15s ease;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
    z-index: 5;
}

.blocked:hover,
.calendar-cell.blocked:hover {
    background: #D32F2F !important;
    cursor: not-allowed;
}

/* Selected State */
.calendar-cell.selected,
.available.selected,
.booked.selected,
.personal.selected,
.timeout.selected {
    border: 2px solid #2B2B2B !important;
    box-shadow: 0 0 0 3px rgba(43, 43, 43, 0.1);
    z-index: 10;
    position: relative;
}

/* Marked for Action */
.marked-for-action {
    border: 3px solid #C5BDA8 !important;
    font-weight: bold !important;
    position: relative !important;
    transform: scale(1.05);
    z-index: 10;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
}

/* Student Booked */
.student-booked {
    border: 2px solid #2B2B2B !important;
    box-shadow: 0 0 0 1px rgba(43, 43, 43, 0.2);
}

/* Selectable Hover */
.selectable:hover {
    transform: scale(1.02);
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.1);
    z-index: 10;
    position: relative;
}

/* Dragging */
.dragging {
    background: #B8D4C8 !important;
    color: #2B2B2B !important;
    transform: scale(1.05);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

/* === CARDS - Minimal Design === */
.teacher-card, .student-card {
    background: var(--color-white);
    border: var(--border-thin, 0.5px) solid var(--color-gray-200);
    border-radius: var(--radius-normal);
    padding: var(--space-6);
    margin: var(--space-4) 0;
    display: flex;
    align-items: center;
    gap: var(--space-4);
    box-shadow: none;
    cursor: pointer;
    overflow: visible;
    transition: all var(--transition-base);
}

.teacher-card:hover, .student-card:hover {
    transform: none;
    box-shadow: var(--shadow-sm);
    border-color: var(--color-gray-300);
}

.teacher-card img, .student-card img {
    width: 5rem;
    height: 5rem;
    object-fit: cover;
    border-radius: var(--radius-full);
    border: 3px solid var(--color-gray-100);
    transition: transform var(--transition-base);
}

.teacher-card:hover img, .student-card:hover img {
    transform: scale(1.05);
    border-color: var(--color-primary-light);
}

/* Teacher Card Content */
.teacher-info {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.teacher-name {
    font-size: var(--font-lg);
    font-weight: var(--font-semibold);
    color: var(--color-gray-900);
    margin-bottom: var(--space-1);
}

.teacher-price {
    font-size: var(--font-md);
    font-weight: var(--font-medium);
    color: var(--color-primary);
}

.teacher-subjects {
    font-size: var(--font-sm);
    color: var(--color-gray-600);
    margin-bottom: var(--space-2);
}

.teacher-availability {
    font-size: var(--font-sm);
    color: var(--color-gray-700);
    background: var(--color-gray-50);
    padding: var(--space-2) var(--space-3);
    border-radius: var(--radius-sm);
    border-left: 3px solid var(--color-primary);
    margin: var(--space-2) 0;
}

.teacher-meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-3);
    font-size: var(--font-xs);
    color: var(--color-gray-600);
    margin-top: var(--space-2);
}

.teacher-meta span {
    padding: var(--space-1) var(--space-2);
    background: var(--color-gray-100);
    border-radius: var(--radius-sm);
}

/* === PROFILE STYLES === */
.header {
    display: flex;
    flex-wrap: wrap;
    align-items: flex-start;
    justify-content: center;
    gap: var(--space-8);
    margin-bottom: var(--space-12);
    text-align: center;
    padding: var(--space-8);
    background: var(--color-white);
    border-radius: var(--radius-normal);
    border: var(--border-thin, 0.5px) solid var(--color-gray-200);
}

#photo {
    width: 8rem;
    height: 8rem;
    border-radius: var(--radius-full);
    object-fit: cover;
    transition: all var(--transition-base);
    border: 4px solid var(--color-white);
    box-shadow: var(--shadow-lg);
}

#photo:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-xl);
}

.header-content {
    flex-grow: 1;
    min-width: 20rem;
}

.header-content h1, .section-title {
    font-size: clamp(var(--font-size-xl), 3vw, var(--font-size-2xl));
    font-weight: 700;
    margin-bottom: var(--space-3);
    color: var(--color-gray-900);
    letter-spacing: -0.025em;
}

.section-title {
    border-bottom: 2px solid var(--color-primary-light);
    padding-bottom: var(--space-2);
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 3rem;
    height: 2px;
    background: var(--current-primary, var(--color-primary));
}

.price {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--current-primary, var(--color-primary));
}

.section {
    margin-bottom: var(--space-10);
    padding: var(--space-6);
    background: var(--color-white);
    border-radius: var(--radius-normal);
    border: var(--border-thin, 0.5px) solid var(--color-gray-200);
    box-shadow: none;
}

.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr));
    gap: var(--space-6);
    margin-bottom: var(--space-6);
}

.info-label {
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--color-gray-500);
    margin-bottom: var(--space-2);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.info-value {
    font-weight: 500;
    color: var(--color-gray-900);
    font-size: var(--font-size-base);
}

.tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
    margin-top: var(--space-3);
}

.tag {
    background: var(--color-gray-100);
    color: var(--color-gray-700);
    padding: var(--space-2) var(--space-4);
    border-radius: var(--radius-full);
    font-size: var(--font-size-xs);
    font-weight: 500;
    border: var(--border-thin, 0.5px) solid var(--color-gray-300);
    transition: all var(--transition-fast);
}

.tag:hover {
    background: var(--color-secondary);
    color: var(--color-white);
    border-color: var(--color-secondary);
    transform: none;
}

/* === PUBLIC ID DISPLAY === */
.public-id-container {
    text-align: center;
    margin: 15px 0;
    display: flex;
    justify-content: center;
    align-items: center;
}

.public-id-display {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: rgba(4, 170, 109, 0.08);
    border: 1px solid rgba(4, 170, 109, 0.2);
    border-radius: 12px;
    padding: 10px 16px;
    font-family: var(--font-family-mono);
    font-size: 14px;
    font-weight: 600;
    color: var(--current-primary-dark, var(--color-primary-dark));
    box-shadow: 0 2px 8px rgba(4, 170, 109, 0.1);
    backdrop-filter: blur(8px);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
}

body.student .public-id-display {
    background: rgba(4, 170, 109, 0.08);
    border: 1px solid rgba(4, 170, 109, 0.2);
    color: var(--color-student-primary-dark);
}

.public-id-display:hover {
    background: rgba(4, 170, 109, 0.12);
    border-color: rgba(4, 170, 109, 0.35);
    box-shadow: 0 4px 16px rgba(4, 170, 109, 0.15);
    transform: translateY(-1px);
}

body.student .public-id-display:hover {
    background: rgba(4, 170, 109, 0.12);
    border-color: rgba(4, 170, 109, 0.35);
    box-shadow: 0 4px 16px rgba(4, 170, 109, 0.15);
}

#public-id-text, .public-id-text {
    letter-spacing: 1px;
    color: var(--current-primary-dark, var(--color-primary-dark));
    font-weight: 700;
    user-select: all;
    cursor: text;
    padding: 2px 4px;
    border-radius: 4px;
    transition: all 0.2s ease;
}

#public-id-text:hover, .public-id-text:hover {
    background: rgba(99, 102, 241, 0.1);
}

body.student #public-id-text:hover, body.student .public-id-text:hover {
    background: rgba(59, 130, 246, 0.1);
}

#public-id-copy, .public-id-copy {
    background: rgba(4, 170, 109, 0.1) !important;
    border: 1px solid rgba(99, 102, 241, 0.25) !important;
    color: var(--color-primary) !important;
    cursor: pointer !important;
    padding: 8px 10px !important;
    border-radius: 8px !important;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1) !important;
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;
    font-size: 14px !important;
    width: 36px !important;
    height: 36px !important;
    backdrop-filter: blur(8px) !important;
}

#public-id-copy:hover, .public-id-copy:hover {
    background: rgba(4, 170, 109, 0.18) !important;
    border-color: rgba(4, 170, 109, 0.4) !important;
    transform: scale(1.05) translateY(-1px) !important;
    box-shadow: 0 6px 16px rgba(4, 170, 109, 0.2) !important;
}

body.student #public-id-copy, body.student .public-id-copy {
    background: rgba(4, 170, 109, 0.1) !important;
    border: 1px solid rgba(59, 130, 246, 0.25) !important;
    color: var(--color-student-primary) !important;
}

body.student #public-id-copy:hover, body.student .public-id-copy:hover {
    background: rgba(4, 170, 109, 0.18) !important;
    border-color: rgba(4, 170, 109, 0.4) !important;
    box-shadow: 0 6px 16px rgba(4, 170, 109, 0.2) !important;
}

#public-id-copy.copied, .public-id-copy.copied {
    background: rgba(4, 170, 109, 0.15) !important;
    border-color: rgba(4, 170, 109, 0.4) !important;
    color: var(--color-accent) !important;
    transform: scale(1.1) !important;
    box-shadow: 0 8px 20px rgba(4, 170, 109, 0.25) !important;
}

/* === FORMS - Minimal Design === */
.form-container {
    max-width: 56rem;
    margin: 0 auto;
    padding: var(--space-6);
}

.form-section {
    background: var(--color-white);
    margin: var(--space-6) 0;
    padding: var(--space-8);
    border-radius: var(--radius-normal);
    box-shadow: none;
    border: var(--border-thin, 0.5px) solid var(--color-gray-200);
}

.form-section h2 {
    margin-top: 0;
    color: var(--color-gray-900);
    font-size: var(--font-size-xl);
    font-weight: 700;
    border-bottom: 2px solid var(--color-primary-light);
    padding-bottom: var(--space-3);
    margin-bottom: var(--space-6);
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-6);
    margin-bottom: var(--space-6);
}

.form-row.single {
    grid-template-columns: 1fr;
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group label {
    font-weight: 600;
    color: var(--color-gray-700);
    margin-bottom: var(--space-2);
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--font-size-sm);
}

.form-group input, .form-group textarea, .form-group select {
    padding: var(--space-4);
    border: 1px solid var(--color-gray-200);
    border-radius: var(--radius-normal);
    font-size: var(--font-size-base);
    background: var(--color-white);
    transition: all var(--transition-base);
    font-family: inherit;
}

.form-group input:focus, .form-group textarea:focus, .form-group select:focus {
    outline: none;
    border-color: var(--color-secondary);
    background: var(--color-white);
    box-shadow: none;
}

body.student .form-group input:focus,
body.student .form-group textarea:focus,
body.student .form-group select:focus {
    border-color: var(--color-student-primary);
    box-shadow: 0 0 0 3px rgba(4, 170, 109, 0.1);
}

.form-group textarea {
    min-height: 7.5rem;
    resize: vertical;
    line-height: 1.5;
}

/* === MODALS - Minimal Design === */
.modal {
    display: none;
    position: fixed;
    z-index: 50;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
    cursor: pointer;
}

.modal-content {
    background: var(--color-white);
    margin: 5% auto;
    padding: var(--space-8);
    width: 90%;
    max-width: 32rem;
    border-radius: var(--radius-normal);
    box-shadow: var(--shadow-lg);
    border: var(--border-thin, 0.5px) solid var(--color-gray-200);
    position: relative;
}

.modal .close, .modal .close-modal {
    color: var(--color-gray-400);
    position: absolute;
    top: var(--space-4);
    right: var(--space-4);
    font-size: var(--font-size-2xl);
    font-weight: bold;
    cursor: pointer;
    z-index: 51;
    transition: opacity var(--transition-fast);
    background: none;
    border: none;
    width: 2rem;
    height: 2rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal .close:hover, .modal .close-modal:hover {
    opacity: 0.7;
}

/* === INTERACTIVE CONTROLS === */
#navigation-controls {
    display: flex;
    gap: var(--space-2);
    margin-bottom: var(--space-4);
}

#nav-prev-week, #nav-next-week, #prev-week, #next-week {
    flex: 1;
    padding: var(--space-3) var(--space-4);
    background: var(--current-primary, var(--color-primary));
    color: var(--color-white);
    border: none;
    border-radius: var(--radius-base);
    cursor: pointer;
    font-size: var(--font-size-sm);
    font-weight: 500;
    transition: all var(--transition-base);
}

#nav-prev-week:hover, #nav-next-week:hover, #prev-week:hover, #next-week:hover {
    background: var(--current-primary-dark, var(--color-primary-dark));
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.booking-controls {
    margin: var(--space-4) 0;
    padding: var(--space-4);
    background: var(--color-gray-50);
    border-radius: var(--radius-normal);
    border: var(--border-thin, 0.5px) solid var(--color-gray-200);
}

.booking-btn {
    width: 48%;
    padding: var(--space-3) var(--space-2);
    margin: var(--space-1);
    border: none;
    border-radius: var(--radius-base);
    cursor: pointer;
    font-size: var(--font-size-sm);
    font-weight: 600;
    transition: all var(--transition-base);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-1);
}

.booking-btn.book {
    background: var(--color-accent);
    color: var(--color-white);
}

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

.booking-btn:hover:not(.active) {
    opacity: 0.9;
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

/* === LEGEND & INFO === */
.legend-item {
    display: flex;
    align-items: center;
    margin-bottom: var(--space-2);
    font-size: var(--font-size-xs);
}

.legend-color {
    width: 1.25rem;
    height: 0.9375rem;
    margin-right: var(--space-2);
    border: var(--border-thin, 0.5px) solid var(--color-gray-300);
    border-radius: var(--radius-normal);
    flex-shrink: 0;
}

.legend-color.available { background: #4CAF50; }
.legend-color.selected { background: var(--color-warning); }
.legend-color.blocked { background: #F44336; }
.legend-color.booked { background: #00BCD4; }
.legend-color.personal { background: #9C27B0; }
.legend-color.timeout { background: #FF9800; }

#calendar-info {
    padding: var(--space-4);
    border-radius: var(--radius-normal);
    margin-top: var(--space-4);
    border: var(--border-thin, 0.5px) solid;
}

body.teacher #calendar-info {
    background: #e8f5e8;
    color: #2e7d32;
    border-color: #a5d6a7;
}

body.student #calendar-info {
    background: #e3f2fd;
    color: #1565c0;
    border-color: #90caf9;
}

/* === REVIEWS - Minimal Design === */
.review {
    background: var(--color-gray-50);
    padding: var(--space-6);
    margin-bottom: var(--space-4);
    border-radius: var(--radius-normal);
    border: var(--border-thin, 0.5px) solid var(--color-gray-200);
    transition: all var(--transition-base);
}

.review:hover {
    background: var(--color-white);
    box-shadow: none;
    transform: none;
    border-color: var(--color-gray-300);
}

.review-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-3);
    font-weight: 600;
    color: var(--color-gray-900);
}

.review-stars {
    color: #fbbf24;
    font-size: var(--font-size-lg);
}

.review-text {
    font-style: italic;
    color: var(--color-gray-600);
    line-height: 1.6;
}

/* === FOCUS ACCESSIBILITY === */

/* Keyboard Navigation Focus */
button:focus-visible, .primary-btn:focus-visible, .secondary-btn:focus-visible, .tertiary-btn:focus-visible,
input:focus-visible, textarea:focus-visible, select:focus-visible,
nav a:focus-visible, a:focus-visible {
    outline: 2px solid #2B2B2B;
    outline-offset: 2px;
}

/* Active Navigation Item - Handled in nav section */

/* Focus for Calendar Cells */
.calendar-cell:focus-visible {
    outline: 2px solid #2B2B2B;
    outline-offset: -2px;
    z-index: 10;
}

/* Panel Focus */
.time-slot-panel:focus-visible {
    outline: 2px solid #2B2B2B;
    outline-offset: 2px;
}

/* === TOOLTIP SYSTEM === */

/* Tooltip Container */
.tooltip {
    position: relative;
    display: inline-block;
}

/* Tooltip Text */
.tooltip::before {
    content: attr(data-tooltip);
    position: absolute;
    bottom: calc(100% + 8px);
    left: 50%;
    transform: translateX(-50%);
    padding: 0.5rem 0.75rem;
    background: #2B2B2B;
    color: #FFFFFF;
    font-size: 0.875rem;
    font-weight: 400;
    white-space: nowrap;
    border-radius: 0;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s ease;
    z-index: 1000;
}

/* Tooltip Arrow */
.tooltip::after {
    content: "";
    position: absolute;
    bottom: calc(100% + 2px);
    left: 50%;
    transform: translateX(-50%);
    border: 6px solid transparent;
    border-top-color: #2B2B2B;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s ease;
    z-index: 1000;
}

/* Show Tooltip on Hover */
.tooltip:hover::before,
.tooltip:hover::after {
    opacity: 1;
}

/* Tooltip Positions */
.tooltip-top::before {
    bottom: calc(100% + 8px);
    top: auto;
}

.tooltip-bottom::before {
    top: calc(100% + 8px);
    bottom: auto;
}

.tooltip-bottom::after {
    top: calc(100% + 2px);
    bottom: auto;
    border-top-color: transparent;
    border-bottom-color: #2B2B2B;
}

.tooltip-left::before {
    left: auto;
    right: calc(100% + 8px);
    top: 50%;
    bottom: auto;
    transform: translateY(-50%);
}

.tooltip-right::before {
    right: auto;
    left: calc(100% + 8px);
    top: 50%;
    bottom: auto;
    transform: translateY(-50%);
}

/* Disabled Elements Tooltip */
button:disabled.tooltip::before,
.btn:disabled.tooltip::before {
    background: #616161;
}

/* === RESPONSIVE DESIGN === */
@media (max-width: 768px) {
    :root {
        --space-4: 0.75rem;
        --space-6: 1rem;
        --space-8: 1.5rem;
    }

    header #edit-profile-btn {
        left: 0;
        display: block;
        margin: var(--space-4) auto 0;
    }

    /* Mobile Navigation - Stacked Layout */
    nav {
        flex-direction: column;
        align-items: stretch;
        gap: var(--space-1);
        width: 100%;
    }

    nav a, nav button {
        width: 100%;
        justify-content: flex-start;
        padding: 0.875rem 1rem;
        min-height: 48px;
        text-align: left;
    }

    /* Mobile Buttons - Larger Touch Targets */
    button, .btn, .primary-btn, .secondary-btn {
        min-height: 48px;
        padding: 0.875rem 1.25rem;
    }

    /* Mobile Tooltip - Bottom Position */
    .tooltip::before {
        bottom: auto;
        top: calc(100% + 8px);
        white-space: normal;
        max-width: 200px;
    }

    .tooltip::after {
        bottom: auto;
        top: calc(100% + 2px);
        border-top-color: transparent;
        border-bottom-color: #2B2B2B;
    }

    #content {
        flex-direction: column;
        gap: var(--space-4);
    }

    #sidebar {
        width: 100%;
        position: static; /* Nur auf Mobile static */
        order: 2;
        height: auto !important;
    }
    
    #main {
        padding: var(--space-4);
        order: 1;
    }

    .container, main {
        padding: var(--space-4);
    }

    .form-row {
        grid-template-columns: 1fr;
        gap: var(--space-4);
    }

    .header {
        flex-direction: column;
        align-items: center;
        padding: var(--space-6);
    }

    #photo {
        width: 6rem;
        height: 6rem;
    }

    table, #calendar-table {
        font-size: var(--font-size-xs);
    }

    th, td {
        padding: var(--space-1);
        font-size: 10px;
        min-height: 1.25rem;
    }

    .teacher-card, .student-card {
        flex-direction: column;
        text-align: center;
        padding: var(--space-4);
    }

    .public-id-display {
        font-size: 12px;
        padding: 8px 12px;
        gap: 8px;
        border-radius: 10px;
    }
    
    #public-id-copy, .public-id-copy {
        width: 32px !important;
        height: 32px !important;
        font-size: 12px !important;
        padding: 6px 8px !important;
    }
    
    .booking-btn {
        width: 100%;
        margin: var(--space-1) 0;
    }
    
    #navigation-controls {
        flex-direction: column;
    }
}

@media (max-width: 480px) {
    .public-id-display {
        font-size: 11px;
        padding: 6px 10px;
        gap: 6px;
    }
    
    #public-id-copy, .public-id-copy {
        width: 28px !important;
        height: 28px !important;
        font-size: 11px !important;
    }
}

/* === UTILITY CLASSES === */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.text-center { text-align: center; }
.hidden { display: none !important; }
.visible { display: block !important; }

.hover-lift { transition: transform var(--transition-base); }
.hover-lift:hover { transform: translateY(-2px); }

.glass {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.loading {
    opacity: 0.6;
    pointer-events: none;
    cursor: not-allowed;
}

.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    margin: -10px 0 0 -10px;
    border: 2px solid transparent;
    border-top: 2px solid var(--current-primary, var(--color-primary));
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

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

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

.catalog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--space-6);
    margin-top: var(--space-6);
}

/* === OPTIMIZED TEACHER CARDS (nach Best Practices) === */
.teacher-card-optimized {
    background: white;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    overflow: hidden;
    transition: all 0.3s ease;
    margin-bottom: 20px;
}

/* Card Header - Foto + Name + Rating + Preis */
.card-header {
    display: flex;
    gap: 12px;
    padding: 16px;
    border-bottom: 1px solid #f0f0f0;
}

.card-photo-section {
    position: relative;
    flex-shrink: 0;
}

.card-photo {
    width: 100px;
    height: 100px;
    border-radius: 8px;
    object-fit: cover;
    border: 2px solid #e0e0e0;
}

.teacher-current-time {
    position: absolute;
    bottom: -8px;
    left: 50%;
    transform: translateX(-50%);
    background: #2196f3;
    color: white;
    padding: 3px 8px;
    border-radius: 12px;
    font-size: 11px;
    font-weight: 600;
    white-space: nowrap;
    box-shadow: 0 2px 4px rgba(0,0,0,0.2);
}

.card-header-info {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.card-header-middle {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 4px;
    justify-content: center;
}

.card-name {
    font-size: 18px;
    font-weight: 700;
    color: #2c3e50;
    margin-bottom: 4px;
}

.card-rating {
    font-size: 14px;
    color: #666;
    margin-bottom: 8px;
}

.rating-stars {
    color: #ffa726;
    font-weight: 600;
    font-size: 15px;
}

.rating-count {
    color: #999;
    font-size: 13px;
}

.card-price {
    font-size: 24px;
    font-weight: 700;
    color: #27ae60;
}

/* Card Body - Details */
.card-body {
    padding: 16px;
}

.card-languages {
    font-size: 14px;
    color: #555;
    margin-bottom: 12px;
    padding-bottom: 12px;
    border-bottom: 1px solid #f5f5f5;
}

/* Trust Indicators */
.card-stats {
    display: flex;
    justify-content: space-around;
    margin: 12px 0;
    padding: 12px 0;
    background: #f8f9fa;
    border-radius: 6px;
}

.stat-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
}

.stat-icon {
    font-size: 18px;
}

.stat-value {
    font-size: 16px;
    font-weight: 700;
    color: #2c3e50;
}

.stat-label {
    font-size: 11px;
    color: #999;
    text-transform: uppercase;
}

/* Vertical Stats (beside avatar) */
.card-stats-vertical {
    display: flex;
    flex-direction: column;
    gap: 8px;
    justify-content: center;
    padding-left: 12px;
    border-left: 1px solid #f0f0f0;
}

.stat-item-compact {
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: 12px;
    white-space: nowrap;
}

.stat-item-compact .stat-icon {
    font-size: 14px;
}

.stat-item-compact .stat-value {
    font-size: 14px;
    font-weight: 700;
    color: #2c3e50;
    min-width: 20px;
}

.stat-item-compact .stat-label {
    font-size: 11px;
    color: #666;
    text-transform: none;
}

/* Availability */
.card-availability {
    font-size: 13px;
    color: #666;
    padding: 8px;
    background: #fff3e0;
    border-left: 3px solid #ff9800;
    border-radius: 3px;
    margin-bottom: 12px;
}

.availability-icon {
    margin-right: 4px;
}

/* Action Buttons */
.card-actions {
    display: flex;
    gap: 8px;
    margin-top: 12px;
    padding-top: 12px;
    border-top: 1px solid #f0f0f0;
}

.card-actions .favorites-btn,
.card-actions .accept-btn,
.card-actions .remove-from-list-btn {
    padding: 8px 12px;
    font-size: 13px;
    font-weight: 500;
    border-radius: 4px;
    transition: all 0.2s;
    white-space: nowrap;
}

/* === NEW COMPACT CARD LAYOUT === */
.card-container-new {
    display: flex;
    gap: 12px;
    padding: 16px;
    min-height: 140px;
}

.card-main-section {
    display: flex;
    gap: 12px;
    flex: 1;
}

.card-info-section {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.card-top-row {
    display: flex;
    gap: 16px;
    align-items: flex-start;
}

.card-details-section {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.card-tagline {
    font-size: 13px;
    color: #555;
    font-style: italic;
    padding: 6px 8px;
    background: #f5f5f5;
    border-left: 3px solid #9c27b0;
    border-radius: 3px;
}

/* Action Buttons Vertical (rechts) */
.card-actions-vertical {
    display: flex;
    flex-direction: column;
    gap: 8px;
    justify-content: top;
    align-items: flex-end;
    padding-left: 12px;
    border-left: 1px solid #f0f0f0;
    min-width: 120px;
}

.card-actions-vertical .favorites-btn,
.card-actions-vertical .accept-btn,
.card-actions-vertical .contact-btn {
    width: 100%;
    max-width: 120px;
}

/* Responsive */
@media (max-width: 768px) {
    .card-header {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }

    .card-photo-section {
        margin-bottom: 8px;
    }

    .card-stats {
        flex-wrap: wrap;
        gap: 12px;
    }

    .card-container-new {
        flex-direction: column;
    }

    .card-top-row {
        flex-direction: column;
    }

    .card-actions-vertical {
        flex-direction: row;
        justify-content: center;
        border-left: none;
        border-top: 1px solid #f0f0f0;
        padding-left: 0;
        padding-top: 12px;
        min-width: auto;
    }

    .card-actions-vertical .favorites-btn,
    .card-actions-vertical .accept-btn,
    .card-actions-vertical .contact-btn {
        width: auto;
        flex: 1;
    }
}

/* === PRINT STYLES === */
@media print {
    body { background: white; color: black; }
    .modal, button, .btn { display: none !important; }
    .container { max-width: none; padding: 0; }
}

/* =========================== */
/* CURRENT TIME TIMELINE */
/* =========================== */
#calendar-current-time-line {
    position: absolute;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent 0%, #dc3545 15px, #dc3545 calc(100% - 15px), transparent 100%);
    z-index: 20;
    pointer-events: none;
    display: none;
    box-shadow: 0 1px 3px rgba(220, 53, 69, 0.5);
}

#calendar-current-time-line::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 8px;
    height: 8px;
    background: #dc3545;
    border-radius: 50%;
    box-shadow: 0 0 4px rgba(220, 53, 69, 0.8);
}

.timeline-label {
    position: absolute;
    left: 12px;
    top: -10px;
    background: #dc3545;
    color: white;
    font-size: 10px;
    font-weight: 600;
    padding: 2px 6px;
    border-radius: 3px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
    white-space: nowrap;
    z-index: 21;
}

/* Calendar Container needs relative positioning for timeline */
#calendar-container {
    position: relative;
}

/* Timeline visibility animation */
#calendar-current-time-line {
    animation: timeline-pulse 2s ease-in-out infinite;
}

@keyframes timeline-pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.8;
    }
}