/*
====================================================================
UROLOGIE FACHARZTPRÜFUNG APP - MAIN STYLESHEET
====================================================================
Modern CSS Design with Open Sans Typography
Color Scheme: #3FA357, #A9C937, #606AAC, #C4CFDB
====================================================================
*/

/* ===== CSS CUSTOM PROPERTIES ===== */
:root {
    /* Color Palette */
    --primary-green: #3FA357;
    --secondary-green: #A9C937;
    --primary-purple: #606AAC;
    --light-gray: #C4CFDB;
    --white: #ffffff;
    --text-dark: #2c3e50;
    --text-light: #7f8c8d;
    --text-muted: #95a5a6;
    --shadow-light: rgba(96, 106, 172, 0.15);
    --shadow-medium: rgba(96, 106, 172, 0.25);
    --shadow-dark: rgba(96, 106, 172, 0.35);

    /* Background Gradients */
    --bg-gradient-main: linear-gradient(135deg, #C4CFDB 0%, #f8f9fb 50%, #ffffff 100%);
    --bg-gradient-primary: linear-gradient(135deg, var(--primary-green), var(--secondary-green));
    --bg-gradient-card: rgba(255, 255, 255, 0.9);
    --bg-gradient-hero: linear-gradient(135deg, var(--primary-green), var(--primary-purple));

    /* Typography */
    --font-family: 'Open Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-xs: 0.75rem;      /* 12px */
    --font-size-sm: 0.875rem;     /* 14px */
    --font-size-base: 1rem;       /* 16px */
    --font-size-lg: 1.125rem;     /* 18px */
    --font-size-xl: 1.25rem;      /* 20px */
    --font-size-2xl: 1.5rem;      /* 24px */
    --font-size-3xl: 2rem;        /* 32px */
    --font-size-4xl: 2.5rem;      /* 40px */
    --font-size-5xl: 3rem;        /* 48px */

    /* Spacing */
    --spacing-xs: 0.25rem;    /* 4px */
    --spacing-sm: 0.5rem;     /* 8px */
    --spacing-md: 1rem;       /* 16px */
    --spacing-lg: 1.5rem;     /* 24px */
    --spacing-xl: 2rem;       /* 32px */
    --spacing-2xl: 3rem;      /* 48px */
    --spacing-3xl: 4rem;      /* 64px */

    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    --radius-full: 50%;

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

    /* Z-Index Scale */
    --z-dropdown: 1000;
    --z-navbar: 1010;
    --z-modal: 1020;
    --z-tooltip: 1030;
}

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

*::before,
*::after {
    box-sizing: border-box;
}

html {
    line-height: 1.15;
    -webkit-text-size-adjust: 100%;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    font-weight: 400;
    line-height: 1.6;
    color: var(--text-dark);
    background: var(--bg-gradient-main);
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ===== TYPOGRAPHY ===== */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-sm);
    color: var(--text-dark);
}

h1 { font-size: var(--font-size-5xl); }
h2 { font-size: var(--font-size-4xl); }
h3 { font-size: var(--font-size-3xl); }
h4 { font-size: var(--font-size-2xl); }
h5 { font-size: var(--font-size-xl); }
h6 { font-size: var(--font-size-lg); }

p {
    margin-bottom: var(--spacing-md);
    color: var(--text-dark);
}

a {
    color: var(--primary-green);
    text-decoration: none;
    transition: color var(--transition-normal);
}

a:hover {
    color: var(--secondary-green);
}

small {
    font-size: var(--font-size-sm);
    color: var(--text-light);
}

strong {
    font-weight: 600;
}

/* ===== LAYOUT CONTAINERS ===== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    width: 100%;
}

.container-fluid {
    width: 100%;
    padding: 0 var(--spacing-lg);
}

.container-sm {
    max-width: 640px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

/* ===== GRID SYSTEM ===== */
.row {
    display: flex;
    flex-wrap: wrap;
    margin: calc(var(--spacing-md) * -1);
}

.col {
    flex: 1;
    padding: var(--spacing-md);
}

.col-1 { flex: 0 0 8.333333%; }
.col-2 { flex: 0 0 16.666667%; }
.col-3 { flex: 0 0 25%; }
.col-4 { flex: 0 0 33.333333%; }
.col-5 { flex: 0 0 41.666667%; }
.col-6 { flex: 0 0 50%; }
.col-7 { flex: 0 0 58.333333%; }
.col-8 { flex: 0 0 66.666667%; }
.col-9 { flex: 0 0 75%; }
.col-10 { flex: 0 0 83.333333%; }
.col-11 { flex: 0 0 91.666667%; }
.col-12 { flex: 0 0 100%; }

.col-1, .col-2, .col-3, .col-4, .col-5, .col-6,
.col-7, .col-8, .col-9, .col-10, .col-11, .col-12 {
    padding: var(--spacing-md);
}

/* ===== NAVIGATION ===== */
.navbar {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(196, 207, 219, 0.3);
    position: sticky;
    top: 0;
    z-index: var(--z-navbar);
    box-shadow: 0 2px 20px var(--shadow-light);
    transition: all var(--transition-normal);
}

.nav-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md) 0;
}

.nav-brand {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--primary-green);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    transition: transform var(--transition-normal);
}

.nav-brand:hover {
    transform: scale(1.05);
    color: var(--primary-green);
}

.nav-links {
    display: flex;
    gap: var(--spacing-xl);
    list-style: none;
    align-items: center;
    margin: 0;
}

.nav-links li {
    margin: 0;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-dark);
    font-weight: 500;
    font-size: var(--font-size-base);
    position: relative;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-sm);
    transition: all var(--transition-normal);
}

.nav-links a:hover {
    color: var(--primary-green);
    background: rgba(63, 163, 87, 0.1);
}

.nav-links a.active {
    color: var(--primary-green);
    font-weight: 600;
}

.nav-links a.active::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: var(--spacing-md);
    right: var(--spacing-md);
    height: 2px;
    background: var(--primary-green);
    border-radius: 1px;
}

/* Mobile Navigation Toggle */
.nav-toggle {
    display: none;
    background: none;
    border: none;
    font-size: var(--font-size-xl);
    color: var(--text-dark);
    cursor: pointer;
    padding: var(--spacing-sm);
}

/* ===== CARDS ===== */
.card {
    background: var(--bg-gradient-card);
    backdrop-filter: blur(20px);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
    box-shadow: 0 8px 32px var(--shadow-light);
    border: 1px solid rgba(196, 207, 219, 0.2);
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.8), transparent);
    opacity: 0.5;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 40px var(--shadow-medium);
}

.card-header {
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid rgba(196, 207, 219, 0.2);
}

.card-title {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: var(--text-dark);
}

.card-subtitle {
    color: var(--text-light);
    font-size: var(--font-size-base);
    margin: 0;
}

.card-body {
    padding: 0;
}

.card-footer {
    margin-top: var(--spacing-lg);
    padding-top: var(--spacing-md);
    border-top: 1px solid rgba(196, 207, 219, 0.2);
}

/* ===== BUTTONS ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-lg);
    border: none;
    border-radius: var(--radius-md);
    font-family: var(--font-family);
    font-weight: 600;
    font-size: var(--font-size-base);
    text-decoration: none;
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
    white-space: nowrap;
    user-select: none;
    min-height: 44px; /* Touch target size */
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left var(--transition-slow);
}

.btn:hover::before {
    left: 100%;
}

.btn-primary {
    background: var(--bg-gradient-primary);
    color: var(--white);
    box-shadow: 0 4px 15px rgba(63, 163, 87, 0.2);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(63, 163, 87, 0.3);
    color: var(--white);
}

.btn-secondary {
    background: var(--primary-purple);
    color: var(--white);
    box-shadow: 0 4px 15px rgba(96, 106, 172, 0.2);
}

.btn-secondary:hover {
    background: #545a94;
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(96, 106, 172, 0.3);
    color: var(--white);
}

.btn-outline {
    background: transparent;
    color: var(--primary-green);
    border: 2px solid var(--primary-green);
    box-shadow: 0 2px 10px rgba(63, 163, 87, 0.1);
}

.btn-outline:hover {
    background: var(--primary-green);
    color: var(--white);
    transform: translateY(-2px);
}

.btn-danger {
    background: #FF3B30;
    color: var(--white);
    box-shadow: 0 4px 15px rgba(255, 59, 48, 0.2);
}

.btn-danger:hover {
    background: #D70015;
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(255, 59, 48, 0.3);
    color: var(--white);
}

.btn-sm {
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: var(--font-size-sm);
    min-height: 36px;
}

.btn-lg {
    padding: var(--spacing-lg) var(--spacing-2xl);
    font-size: var(--font-size-lg);
    min-height: 52px;
}

.btn:disabled,
.btn[disabled] {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none !important;
    box-shadow: none !important;
}

/* ===== FORMS ===== */
.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-label {
    display: block;
    margin-bottom: var(--spacing-sm);
    font-weight: 600;
    color: var(--text-dark);
    font-size: var(--font-size-sm);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.form-control {
    width: 100%;
    padding: var(--spacing-md) var(--spacing-md);
    border: 2px solid var(--light-gray);
    border-radius: var(--radius-md);
    font-size: var(--font-size-base);
    font-family: var(--font-family);
    background: var(--bg-gradient-card);
    backdrop-filter: blur(10px);
    transition: all var(--transition-normal);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
    min-height: 44px;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-green);
    box-shadow: 0 0 0 3px rgba(63, 163, 87, 0.1), 0 4px 12px rgba(0, 0, 0, 0.1);
    transform: translateY(-1px);
}

.form-control::placeholder {
    color: var(--text-muted);
    opacity: 1;
}

textarea.form-control {
    resize: vertical;
    min-height: 120px;
    line-height: 1.5;
}

select.form-control {
    cursor: pointer;
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%236b7280' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='m6 8 4 4 4-4'/%3e%3c/svg%3e");
    background-position: right var(--spacing-md) center;
    background-repeat: no-repeat;
    background-size: 16px 12px;
    padding-right: var(--spacing-3xl);
}

.form-control:invalid {
    border-color: #FF3B30;
}

.form-control:valid {
    border-color: var(--primary-green);
}

/* Form Validation */
.form-error {
    color: #FF3B30;
    font-size: var(--font-size-sm);
    margin-top: var(--spacing-xs);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.form-help {
    color: var(--text-light);
    font-size: var(--font-size-sm);
    margin-top: var(--spacing-xs);
}

/* ===== STATISTICS GRID ===== */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.stat-card {
    background: var(--bg-gradient-card);
    backdrop-filter: blur(20px);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    text-align: center;
    border: 1px solid rgba(196, 207, 219, 0.2);
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--bg-gradient-primary);
    opacity: 0.8;
}

.stat-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 40px var(--shadow-medium);
}

.stat-number {
    font-size: var(--font-size-4xl);
    font-weight: 700;
    color: var(--primary-green);
    display: block;
    margin-bottom: var(--spacing-sm);
    background: var(--bg-gradient-hero);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    color: var(--text-light);
    font-size: var(--font-size-sm);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* ===== FILTER SECTION ===== */
.filter-section {
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
    border: 1px solid rgba(196, 207, 219, 0.3);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
}

.filter-row {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
    align-items: end;
}

.filter-group {
    flex: 1;
    min-width: 200px;
}

/* ===== TABLES ===== */
.table {
    width: 100%;
    border-collapse: collapse;
    margin-top: var(--spacing-md);
    background: var(--white);
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
}

.table th,
.table td {
    padding: var(--spacing-md) var(--spacing-lg);
    text-align: left;
    border-bottom: 1px solid rgba(196, 207, 219, 0.3);
    vertical-align: middle;
}

.table th {
    font-weight: 600;
    color: var(--primary-purple);
    font-size: var(--font-size-sm);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    background: rgba(96, 106, 172, 0.05);
    position: sticky;
    top: 0;
    z-index: 10;
}

.table tbody tr {
    transition: background-color var(--transition-fast);
}

.table tbody tr:hover {
    background: rgba(196, 207, 219, 0.1);
}

.table tbody tr:last-child td {
    border-bottom: none;
}

/* ===== HASHTAGS ===== */
.hashtag {
    display: inline-block;
    background: var(--bg-gradient-primary);
    color: var(--white);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    font-size: var(--font-size-xs);
    font-weight: 500;
    margin: var(--spacing-xs);
    text-decoration: none;
    transition: all var(--transition-normal);
    box-shadow: 0 2px 8px rgba(63, 163, 87, 0.2);
}

.hashtag:hover {
    background: linear-gradient(135deg, var(--secondary-green), var(--primary-green));
    color: var(--white);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(63, 163, 87, 0.3);
}

/* ===== ALERTS ===== */
.alert {
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-md);
    font-weight: 500;
    border-left: 4px solid;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    transition: all var(--transition-normal);
}

.alert-success {
    background: rgba(63, 163, 87, 0.1);
    color: var(--primary-green);
    border-left-color: var(--primary-green);
}

.alert-error {
    background: rgba(255, 59, 48, 0.1);
    color: #D70015;
    border-left-color: #FF3B30;
}

.alert-warning {
    background: rgba(255, 193, 7, 0.1);
    color: #B8860B;
    border-left-color: #FFC107;
}

.alert-info {
    background: rgba(96, 106, 172, 0.1);
    color: var(--primary-purple);
    border-left-color: var(--primary-purple);
}

/* ===== HERO SECTION ===== */
.hero {
    text-align: center;
    padding: var(--spacing-3xl) 0;
    background: radial-gradient(ellipse at top, rgba(63, 163, 87, 0.1), transparent 70%);
}

.hero-title {
    font-size: var(--font-size-5xl);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    background: var(--bg-gradient-hero);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.1;
}

.hero-subtitle {
    font-size: var(--font-size-xl);
    color: var(--text-light);
    margin-bottom: var(--spacing-xl);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.4;
}

/* ===== FLOATING ACTION BUTTON ===== */
.fab {
    position: fixed;
    bottom: var(--spacing-xl);
    right: var(--spacing-xl);
    width: 60px;
    height: 60px;
    border-radius: var(--radius-full);
    background: var(--bg-gradient-primary);
    color: var(--white);
    border: none;
    font-size: var(--font-size-2xl);
    cursor: pointer;
    box-shadow: 0 8px 32px rgba(63, 163, 87, 0.3);
    transition: all var(--transition-normal);
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    z-index: var(--z-dropdown);
}

.fab:hover {
    transform: scale(1.1);
    box-shadow: 0 12px 40px rgba(63, 163, 87, 0.4);
    color: var(--white);
}

.fab:active {
    transform: scale(0.95);
}

/* ===== PROTOCOLS & CONTENT ===== */
.protokoll-item {
    background: var(--bg-gradient-card);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
    border-left: 4px solid var(--primary-green);
    transition: all var(--transition-normal);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
}

.protokoll-item:hover {
    transform: translateX(4px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
}

.protokoll-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
    font-size: var(--font-size-sm);
    color: var(--text-light);
    padding-bottom: var(--spacing-sm);
    border-bottom: 1px solid rgba(196, 207, 219, 0.2);
}

.protokoll-content {
    margin-bottom: var(--spacing-md);
    line-height: 1.6;
}

/* ===== FEATURE GRID ===== */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.feature-card {
    background: var(--bg-gradient-card);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    text-align: center;
    border: 1px solid rgba(196, 207, 219, 0.2);
    transition: all var(--transition-normal);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.1);
}

.feature-icon {
    font-size: var(--font-size-5xl);
    margin-bottom: var(--spacing-md);
    display: block;
}

/* ===== SIDEBAR ===== */
.sidebar {
    background: rgba(255, 255, 255, 0.8);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    height: fit-content;
    position: sticky;
    top: calc(80px + var(--spacing-md));
}

/* ===== LOADING ANIMATIONS ===== */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(196, 207, 219, 0.3);
    border-top: 3px solid var(--primary-green);
    border-radius: var(--radius-full);
    animation: spin 1s linear infinite;
}

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

/* Fade In Animation */
.fade-in {
    animation: fadeIn 0.5s ease-in;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Slide Up Animation */
.slide-up {
    animation: slideUp 0.6s ease-out;
}

@keyframes slideUp {
    from { opacity: 0; transform: translateY(40px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Pulse Animation */
.pulse {
    animation: pulse 2s infinite;
}

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

/* ===== UTILITY CLASSES ===== */
/* Spacing */
.m-0 { margin: 0 !important; }
.m-1 { margin: var(--spacing-xs) !important; }
.m-2 { margin: var(--spacing-sm) !important; }
.m-3 { margin: var(--spacing-md) !important; }
.m-4 { margin: var(--spacing-lg) !important; }
.m-5 { margin: var(--spacing-xl) !important; }

.mt-0 { margin-top: 0 !important; }
.mt-1 { margin-top: var(--spacing-xs) !important; }
.mt-2 { margin-top: var(--spacing-sm) !important; }
.mt-3 { margin-top: var(--spacing-md) !important; }
.mt-4 { margin-top: var(--spacing-lg) !important; }
.mt-5 { margin-top: var(--spacing-xl) !important; }

.mb-0 { margin-bottom: 0 !important; }
.mb-1 { margin-bottom: var(--spacing-xs) !important; }
.mb-2 { margin-bottom: var(--spacing-sm) !important; }
.mb-3 { margin-bottom: var(--spacing-md) !important; }
.mb-4 { margin-bottom: var(--spacing-lg) !important; }
.mb-5 { margin-bottom: var(--spacing-xl) !important; }

.p-0 { padding: 0 !important; }
.p-1 { padding: var(--spacing-xs) !important; }
.p-2 { padding: var(--spacing-sm) !important; }
.p-3 { padding: var(--spacing-md) !important; }
.p-4 { padding: var(--spacing-lg) !important; }
.p-5 { padding: var(--spacing-xl) !important; }

/* Text Alignment */
.text-left { text-align: left !important; }
.text-center { text-align: center !important; }
.text-right { text-align: right !important; }
.text-justify { text-align: justify !important; }

/* Text Colors */
.text-primary { color: var(--primary-green) !important; }
.text-secondary { color: var(--primary-purple) !important; }
.text-muted { color: var(--text-muted) !important; }
.text-light { color: var(--text-light) !important; }
.text-dark { color: var(--text-dark) !important; }
.text-white { color: var(--white) !important; }

/* Font Weight */
.fw-light { font-weight: 300 !important; }
.fw-normal { font-weight: 400 !important; }
.fw-semibold { font-weight: 600 !important; }
.fw-bold { font-weight: 700 !important; }

/* Display */
.d-none { display: none !important; }
.d-block { display: block !important; }
.d-inline { display: inline !important; }
.d-inline-block { display: inline-block !important; }
.d-flex { display: flex !important; }
.d-grid { display: grid !important; }

/* Flexbox */
.justify-content-start { justify-content: flex-start !important; }
.justify-content-center { justify-content: center !important; }
.justify-content-end { justify-content: flex-end !important; }
.justify-content-between { justify-content: space-between !important; }

.align-items-start { align-items: flex-start !important; }
.align-items-center { align-items: center !important; }
.align-items-end { align-items: flex-end !important; }

.flex-column { flex-direction: column !important; }
.flex-row { flex-direction: row !important; }
.flex-wrap { flex-wrap: wrap !important; }
.flex-nowrap { flex-wrap: nowrap !important; }

/* Width & Height */
.w-25 { width: 25% !important; }
.w-50 { width: 50% !important; }
.w-75 { width: 75% !important; }
.w-100 { width: 100% !important; }

.h-25 { height: 25% !important; }
.h-50 { height: 50% !important; }
.h-75 { height: 75% !important; }
.h-100 { height: 100% !important; }

/* Border Radius */
.rounded { border-radius: var(--radius-md) !important; }
.rounded-sm { border-radius: var(--radius-sm) !important; }
.rounded-lg { border-radius: var(--radius-lg) !important; }
.rounded-xl { border-radius: var(--radius-xl) !important; }
.rounded-full { border-radius: var(--radius-full) !important; }

/* Shadow */
.shadow-sm { box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05) !important; }
.shadow { box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1) !important; }
.shadow-lg { box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15) !important; }

/* ===== RESPONSIVE DESIGN ===== */

/* Tablet Portrait */
@media (max-width: 768px) {
    :root {
        --font-size-5xl: 2.5rem;
        --font-size-4xl: 2rem;
        --font-size-3xl: 1.75rem;
    }

    .container {
        padding: 0 var(--spacing-md);
    }

    .nav-content {
        padding: var(--spacing-sm) 0;
    }

    .nav-brand {
        font-size: var(--font-size-xl);
    }

    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--white);
        flex-direction: column;
        padding: var(--spacing-md);
        box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
        border-radius: 0 0 var(--radius-lg) var(--radius-lg);
        gap: var(--spacing-sm);
    }

    .nav-links.active {
        display: flex;
    }

    .nav-toggle {
        display: block;
    }

    .card {
        padding: var(--spacing-lg);
        margin-bottom: var(--spacing-lg);
    }

    .hero {
        padding: var(--spacing-xl) 0;
    }

    .hero-title {
        font-size: var(--font-size-4xl);
    }

    .hero-subtitle {
        font-size: var(--font-size-lg);
    }

    .row {
        margin: calc(var(--spacing-sm) * -1);
    }

    .col, .col-1, .col-2, .col-3, .col-4, .col-5, .col-6,
    .col-7, .col-8, .col-9, .col-10, .col-11, .col-12 {
        flex: 0 0 100%;
        padding: var(--spacing-sm);
    }

    .stats-grid {
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
        gap: var(--spacing-md);
    }

    .feature-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }

    .filter-row {
        flex-direction: column;
        gap: var(--spacing-md);
    }

    .filter-group {
        min-width: auto;
    }

    .table-responsive {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }

    .fab {
        bottom: var(--spacing-lg);
        right: var(--spacing-lg);
        width: 56px;
        height: 56px;
        font-size: var(--font-size-xl);
    }

    .btn {
        padding: var(--spacing-sm) var(--spacing-md);
        font-size: var(--font-size-sm);
    }

    .btn-lg {
        padding: var(--spacing-md) var(--spacing-lg);
        font-size: var(--font-size-base);
    }
}

/* Mobile Landscape & Small Tablets */
@media (max-width: 576px) {
    .container {
        padding: 0 var(--spacing-sm);
    }

    .card {
        padding: var(--spacing-md);
        border-radius: var(--radius-md);
    }

    .stat-card {
        padding: var(--spacing-md);
    }

    .stat-number {
        font-size: var(--font-size-3xl);
    }

    .hero-title {
        font-size: var(--font-size-3xl);
    }

    .hero-subtitle {
        font-size: var(--font-size-base);
    }

    .protokoll-meta {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-xs);
    }

    .table th,
    .table td {
        padding: var(--spacing-sm);
        font-size: var(--font-size-sm);
    }

    .btn {
        width: 100%;
        justify-content: center;
    }

    .btn + .btn {
        margin-top: var(--spacing-sm);
    }

    .filter-section {
        padding: var(--spacing-md);
    }
}

/* Large Desktop */
@media (min-width: 1200px) {
    .container {
        max-width: 1400px;
    }

    .hero-title {
        font-size: 4rem;
    }

    .stats-grid {
        grid-template-columns: repeat(4, 1fr);
    }

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

/* ===== DARK MODE SUPPORT ===== */
@media (prefers-color-scheme: dark) {
    :root {
        --text-dark: #e2e8f0;
        --text-light: #94a3b8;
        --text-muted: #64748b;
        --bg-gradient-main: linear-gradient(135deg, #1e293b 0%, #334155 50%, #475569 100%);
        --bg-gradient-card: rgba(30, 41, 59, 0.9);
        --white: #1e293b;
        --shadow-light: rgba(0, 0, 0, 0.3);
        --shadow-medium: rgba(0, 0, 0, 0.4);
        --shadow-dark: rgba(0, 0, 0, 0.5);
    }

    .navbar {
        background: rgba(30, 41, 59, 0.95);
        border-bottom-color: rgba(100, 116, 139, 0.3);
    }

    .table {
        background: var(--bg-gradient-card);
        color: var(--text-dark);
    }

    .table th {
        background: rgba(96, 106, 172, 0.1);
    }

    .form-control {
        background: var(--bg-gradient-card);
        color: var(--text-dark);
        border-color: rgba(100, 116, 139, 0.3);
    }

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

/* ===== ACCESSIBILITY ===== */
/* Focus Styles */
*:focus {
    outline: 2px solid var(--primary-green);
    outline-offset: 2px;
}

.btn:focus,
.form-control:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(63, 163, 87, 0.3);
}

/* High Contrast Mode */
@media (prefers-contrast: high) {
    :root {
        --primary-green: #2d5a3d;
        --secondary-green: #8fb928;
        --primary-purple: #4a5490;
        --text-dark: #000000;
        --text-light: #333333;
    }

    .btn {
        border: 2px solid currentColor;
    }

    .card {
        border: 1px solid var(--text-dark);
    }
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }

    .loading {
        animation: none;
        border: 3px solid var(--primary-green);
    }
}

/* Print Styles */
@media print {
    .navbar,
    .fab,
    .btn,
    .filter-section {
        display: none !important;
    }

    .card {
        break-inside: avoid;
        box-shadow: none;
        border: 1px solid #000;
    }

    body {
        background: white;
        color: black;
    }

    a {
        color: black;
        text-decoration: underline;
    }
}

/* ===== CUSTOM SCROLLBAR ===== */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--light-gray);
    border-radius: var(--radius-sm);
}

::-webkit-scrollbar-thumb {
    background: var(--primary-green);
    border-radius: var(--radius-sm);
    transition: background var(--transition-normal);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--secondary-green);
}

/* Firefox Scrollbar */
html {
    scrollbar-width: thin;
    scrollbar-color: var(--primary-green) var(--light-gray);
}

/* ===== SELECTION STYLES ===== */
::selection {
    background: rgba(63, 163, 87, 0.3);
    color: var(--text-dark);
}

::-moz-selection {
    background: rgba(63, 163, 87, 0.3);
    color: var(--text-dark);
}

/* ===== COMPONENT SPECIFIC STYLES ===== */

/* Login/Register Forms */
.auth-container {
    min-height: 80vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-xl) 0;
}

.auth-card {
    max-width: 400px;
    width: 100%;
    margin: var(--spacing-md);
}

/* Dashboard specific */
.quick-actions {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.quick-actions .btn {
    justify-content: flex-start;
    text-align: left;
}

/* Protocol item animations */
.protokoll-item {
    animation: slideUp 0.6s ease-out;
}

.protokoll-item:nth-child(2) {
    animation-delay: 0.1s;
}

.protokoll-item:nth-child(3) {
    animation-delay: 0.2s;
}

/* Admin dashboard specifics */
.admin-header {
    background: linear-gradient(135deg, var(--primary-purple), var(--primary-green));
    color: var(--white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    margin-bottom: var(--spacing-xl);
    text-align: center;
}

/* Success messages */
.success-banner {
    background: linear-gradient(135deg, var(--primary-green), var(--secondary-green));
    color: var(--white);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    text-align: center;
    margin-bottom: var(--spacing-xl);
    animation: slideUp 0.6s ease-out;
}

/* Error states */
.error-state {
    text-align: center;
    padding: var(--spacing-3xl);
    color: var(--text-light);
}

.error-state h3 {
    color: var(--text-muted);
    margin-bottom: var(--spacing-md);
}

/* Empty states */
.empty-state {
    text-align: center;
    padding: var(--spacing-3xl);
    color: var(--text-light);
}

.empty-state-icon {
    font-size: var(--font-size-5xl);
    margin-bottom: var(--spacing-lg);
    opacity: 0.5;
}

/* ===== END OF STYLESHEET ===== */