/**
 * Camping & Sportbootclub Itterdamm
 * Globales Theme - Basierend auf Startseite
 * Responsive Design mit dynamischen Anpassungen
 */

/* ========================================
   CSS Variables - Globale Farbpalette
   ======================================== */
:root {
    /* Primärfarben - Rhein-Blau */
    --color-primary: #2C5F78;
    --color-primary-dark: #1a3a4a;
    --color-primary-light: #3a7291;
    
    /* Sekundärfarben */
    --color-secondary: #3a7291;
    --color-accent: #6B8E23;
    --color-accent-light: #7da32e;
    
    /* Status-Farben */
    --color-success: #059669;
    --color-warning: #d97706;
    --color-danger: #dc2626;
    --color-info: #3b82f6;
    
    /* Hintergründe */
    --color-background: #F2E8D5;
    --color-surface: #ffffff;
    --color-surface-hover: #f8fafc;
    
    /* Text */
    --color-text: #333333;
    --color-text-secondary: #555555;
    --color-text-muted: #64748b;
    --color-text-inverse: #ffffff;
    
    /* Borders */
    --color-border: #e2e8f0;
    --color-border-light: #f1f5f9;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0,0,0,0.1);
    
    /* Abstände */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-2xl: 48px;
    
    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-full: 9999px;
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 250ms ease;
    --transition-slow: 350ms ease;
    
    /* Z-Index Scale */
    --z-dropdown: 100;
    --z-sticky: 200;
    --z-modal: 300;
    --z-toast: 400;
}

/* ========================================
   Global Resets & Base Styles
   ======================================== */
*, *::before, *::after {
    box-sizing: border-box;
}

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

body {
    font-family: 'Open Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-background);
    margin: 0;
    padding: 0;
}

/* ========================================
   Typography
   ======================================== */
h1, h2, h3, h4, h5, h6 {
    font-family: 'Montserrat', -apple-system, BlinkMacSystemFont, sans-serif;
    font-weight: 600;
    line-height: 1.3;
    color: var(--color-text);
    margin-top: 0;
}

h1 { font-size: clamp(1.75rem, 4vw, 2.5rem); }
h2 { font-size: clamp(1.5rem, 3vw, 2rem); }
h3 { font-size: clamp(1.25rem, 2.5vw, 1.5rem); }
h4 { font-size: clamp(1.1rem, 2vw, 1.25rem); }

p {
    margin-top: 0;
    margin-bottom: 1rem;
}

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

a:hover {
    color: var(--color-primary-dark);
}

/* ========================================
   Buttons - Global Styles
   ======================================== */
.btn, button[type="submit"], input[type="submit"] {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    font-family: inherit;
    font-size: 0.875rem;
    font-weight: 600;
    line-height: 1.5;
    border-radius: var(--radius-md);
    border: none;
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
}

.btn-primary {
    background-color: var(--color-primary);
    color: var(--color-text-inverse);
}

.btn-primary:hover {
    background-color: var(--color-primary-dark);
    transform: translateY(-1px);
}

.btn-secondary {
    background-color: var(--color-surface);
    color: var(--color-text);
    border: 1px solid var(--color-border);
}

.btn-secondary:hover {
    background-color: var(--color-surface-hover);
    border-color: var(--color-primary);
}

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

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

.btn-warning {
    background-color: var(--color-warning);
    color: var(--color-text-inverse);
}

/* ========================================
   Cards
   ======================================== */
.card {
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    padding: var(--spacing-lg);
    transition: box-shadow var(--transition-normal);
}

.card:hover {
    box-shadow: var(--shadow-lg);
}

/* ========================================
   Forms
   ======================================== */
input, textarea, select {
    font-family: inherit;
    font-size: 1rem;
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    background-color: var(--color-surface);
    color: var(--color-text);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
    width: 100%;
}

input:focus, textarea:focus, select:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(44, 95, 120, 0.15);
}

label {
    display: block;
    font-weight: 500;
    margin-bottom: var(--spacing-xs);
    color: var(--color-text);
}

/* ========================================
   Alerts
   ======================================== */
.alert {
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-md);
    border-left: 4px solid;
}

.alert-success {
    background-color: #d1fae5;
    border-color: var(--color-success);
    color: #065f46;
}

.alert-danger, .alert-error {
    background-color: #fee2e2;
    border-color: var(--color-danger);
    color: #991b1b;
}

.alert-warning {
    background-color: #fef3c7;
    border-color: var(--color-warning);
    color: #92400e;
}

.alert-info {
    background-color: #dbeafe;
    border-color: var(--color-info);
    color: #1e40af;
}

/* ========================================
   Tables
   ======================================== */
table {
    width: 100%;
    border-collapse: collapse;
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

th, td {
    padding: var(--spacing-md);
    text-align: left;
    border-bottom: 1px solid var(--color-border-light);
}

th {
    background-color: var(--color-surface-hover);
    font-weight: 600;
    color: var(--color-text);
}

tr:hover {
    background-color: var(--color-surface-hover);
}

/* ========================================
   Sidebar (Admin & Member)
   ======================================== */
.sidebar, .admin-sidebar {
    background: linear-gradient(180deg, var(--color-primary-dark) 0%, var(--color-primary) 100%);
    color: var(--color-text-inverse);
}

.sidebar a, .admin-sidebar a {
    color: rgba(255, 255, 255, 0.85);
}

.sidebar a:hover, .admin-sidebar a:hover,
.sidebar a.active, .admin-sidebar a.active {
    color: var(--color-text-inverse);
    background-color: rgba(255, 255, 255, 0.1);
}

/* ========================================
   Navigation
   ======================================== */
.navbar, .main-nav {
    background-color: var(--color-surface);
    box-shadow: var(--shadow-sm);
}

.nav-link {
    color: var(--color-text);
    padding: var(--spacing-sm) var(--spacing-md);
    transition: color var(--transition-fast);
}

.nav-link:hover, .nav-link.active {
    color: var(--color-primary);
}

/* ========================================
   Hero Section (Startseite)
   ======================================== */
.hero, .hero-section {
    position: relative;
    min-height: 70vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: var(--color-text-inverse);
}

.hero-content {
    max-width: 800px;
    padding: var(--spacing-xl);
}

.hero h1 {
    font-size: clamp(2rem, 5vw, 3.5rem);
    margin-bottom: var(--spacing-md);
    color: var(--color-text-inverse);
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

/* ========================================
   Footer
   ======================================== */
footer, .site-footer {
    background-color: var(--color-primary-dark);
    color: var(--color-text-inverse);
    padding: var(--spacing-2xl) 0;
}

footer a {
    color: rgba(255, 255, 255, 0.85);
}

footer a:hover {
    color: var(--color-text-inverse);
}

/* ========================================
   Responsive Design - Tablet
   ======================================== */
@media (max-width: 1024px) {
    :root {
        --spacing-lg: 20px;
        --spacing-xl: 28px;
        --spacing-2xl: 40px;
    }
    
    .container {
        padding-left: var(--spacing-md);
        padding-right: var(--spacing-md);
    }
    
    .hero {
        min-height: 60vh;
    }
}

/* ========================================
   Responsive Design - Mobile
   ======================================== */
@media (max-width: 768px) {
    :root {
        --spacing-md: 12px;
        --spacing-lg: 16px;
        --spacing-xl: 24px;
        --spacing-2xl: 32px;
    }
    
    body {
        font-size: 15px;
    }
    
    .btn {
        padding: var(--spacing-sm) var(--spacing-md);
        font-size: 0.8125rem;
    }
    
    .card {
        padding: var(--spacing-md);
        border-radius: var(--radius-md);
    }
    
    table {
        display: block;
        overflow-x: auto;
    }
    
    .hero {
        min-height: 50vh;
    }
    
    .hero h1 {
        font-size: clamp(1.5rem, 6vw, 2.5rem);
    }
    
    /* Mobile Navigation */
    .sidebar, .admin-sidebar {
        position: fixed;
        left: -280px;
        width: 280px;
        height: 100vh;
        z-index: var(--z-modal);
        transition: left var(--transition-normal);
    }
    
    .sidebar.open, .admin-sidebar.open {
        left: 0;
    }
}

/* ========================================
   Responsive Design - Small Mobile
   ======================================== */
@media (max-width: 480px) {
    :root {
        --spacing-md: 10px;
        --spacing-lg: 14px;
    }
    
    body {
        font-size: 14px;
    }
    
    h1 { font-size: 1.5rem; }
    h2 { font-size: 1.25rem; }
    h3 { font-size: 1.125rem; }
    
    .btn {
        width: 100%;
        justify-content: center;
    }
    
    input, textarea, select {
        font-size: 16px; /* Prevents zoom on iOS */
    }
}

/* ========================================
   Print Styles
   ======================================== */
@media print {
    .sidebar, .admin-sidebar, .navbar, footer, .no-print {
        display: none !important;
    }
    
    body {
        background: white;
        color: black;
    }
    
    .card {
        box-shadow: none;
        border: 1px solid #ddd;
    }
}

/* ========================================
   Utility Classes
   ======================================== */
.text-primary { color: var(--color-primary) !important; }
.text-success { color: var(--color-success) !important; }
.text-danger { color: var(--color-danger) !important; }
.text-warning { color: var(--color-warning) !important; }
.text-muted { color: var(--color-text-muted) !important; }

.bg-primary { background-color: var(--color-primary) !important; }
.bg-success { background-color: var(--color-success) !important; }
.bg-danger { background-color: var(--color-danger) !important; }
.bg-warning { background-color: var(--color-warning) !important; }

.mt-0 { margin-top: 0 !important; }
.mb-0 { margin-bottom: 0 !important; }
.mt-1 { margin-top: var(--spacing-sm) !important; }
.mb-1 { margin-bottom: var(--spacing-sm) !important; }
.mt-2 { margin-top: var(--spacing-md) !important; }
.mb-2 { margin-bottom: var(--spacing-md) !important; }
.mt-3 { margin-top: var(--spacing-lg) !important; }
.mb-3 { margin-bottom: var(--spacing-lg) !important; }

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

.rounded { border-radius: var(--radius-md) !important; }
.rounded-lg { border-radius: var(--radius-lg) !important; }
.rounded-full { border-radius: var(--radius-full) !important; }

.shadow { box-shadow: var(--shadow-md) !important; }
.shadow-lg { box-shadow: var(--shadow-lg) !important; }

.hidden { display: none !important; }
.visible { visibility: visible !important; }