/**
 * Paperless-Cloud - Main CSS
 * Globale Styles und Basis-Komponenten
 */

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: #374151;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

::-webkit-scrollbar-track {
    background: #f1f5f9;
}

::-webkit-scrollbar-thumb {
    background: #cbd5e1;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #94a3b8;
}

/* ===== TYPOGRAPHY ===== */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }
h5 { font-size: 1.125rem; }
h6 { font-size: 1rem; }

p {
    margin-bottom: 1rem;
}

a {
    color: #2563eb;
    text-decoration: none;
    transition: color 0.2s ease;
}

a:hover {
    color: #1d4ed8;
}

/* ===== LAYOUT UTILITIES ===== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

.container-fluid {
    width: 100%;
    padding: 0 1rem;
}

.section {
    padding: 4rem 0;
}

.section-sm {
    padding: 2rem 0;
}

.section-lg {
    padding: 6rem 0;
}

/* ===== GRID SYSTEM ===== */
.grid {
    display: grid;
    gap: 1.5rem;
}

.grid-cols-1 { grid-template-columns: repeat(1, 1fr); }
.grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
.grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
.grid-cols-4 { grid-template-columns: repeat(4, 1fr); }

@media (min-width: 768px) {
    .md\:grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
    .md\:grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
    .md\:grid-cols-4 { grid-template-columns: repeat(4, 1fr); }
}

@media (min-width: 1024px) {
    .lg\:grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
    .lg\:grid-cols-4 { grid-template-columns: repeat(4, 1fr); }
}

/* ===== FLEXBOX UTILITIES ===== */
.flex {
    display: flex;
}

.flex-col {
    flex-direction: column;
}

.items-center {
    align-items: center;
}

.justify-center {
    justify-content: center;
}

.justify-between {
    justify-content: space-between;
}

.space-x-4 > * + * {
    margin-left: 1rem;
}

.space-y-4 > * + * {
    margin-top: 1rem;
}

/* ===== SPACING ===== */
.mb-4 { margin-bottom: 1rem; }
.mb-6 { margin-bottom: 1.5rem; }
.mb-8 { margin-bottom: 2rem; }
.mb-12 { margin-bottom: 3rem; }

.mt-4 { margin-top: 1rem; }
.mt-6 { margin-top: 1.5rem; }
.mt-8 { margin-top: 2rem; }
.mt-12 { margin-top: 3rem; }

.p-4 { padding: 1rem; }
.p-6 { padding: 1.5rem; }
.p-8 { padding: 2rem; }

.px-4 { padding-left: 1rem; padding-right: 1rem; }
.px-6 { padding-left: 1.5rem; padding-right: 1.5rem; }
.px-8 { padding-left: 2rem; padding-right: 2rem; }

.py-4 { padding-top: 1rem; padding-bottom: 1rem; }
.py-6 { padding-top: 1.5rem; padding-bottom: 1.5rem; }
.py-8 { padding-top: 2rem; padding-bottom: 2rem; }

/* ===== RESPONSIVE UTILITIES ===== */
.hidden { display: none; }

@media (min-width: 768px) {
    .md\:block { display: block; }
    .md\:flex { display: flex; }
    .md\:hidden { display: none; }
}

@media (min-width: 1024px) {
    .lg\:block { display: block; }
    .lg\:flex { display: flex; }
    .lg\:hidden { display: none; }
}

/* ===== TEXT UTILITIES ===== */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.text-sm { font-size: 0.875rem; }
.text-base { font-size: 1rem; }
.text-lg { font-size: 1.125rem; }
.text-xl { font-size: 1.25rem; }
.text-2xl { font-size: 1.5rem; }
.text-3xl { font-size: 1.875rem; }
.text-4xl { font-size: 2.25rem; }

.font-medium { font-weight: 500; }
.font-semibold { font-weight: 600; }
.font-bold { font-weight: 700; }

/* ===== COLOR UTILITIES ===== */
.text-gray-600 { color: #4b5563; }
.text-gray-700 { color: #374151; }
.text-gray-900 { color: #111827; }
.text-white { color: #ffffff; }

.bg-white { background-color: #ffffff; }
.bg-gray-50 { background-color: #f9fafb; }
.bg-gray-100 { background-color: #f3f4f6; }

/* ===== BORDER UTILITIES ===== */
.border { border-width: 1px; }
.border-2 { border-width: 2px; }
.border-gray-200 { border-color: #e5e7eb; }
.border-gray-300 { border-color: #d1d5db; }

.rounded { border-radius: 0.25rem; }
.rounded-lg { border-radius: 0.5rem; }
.rounded-xl { border-radius: 0.75rem; }
.rounded-2xl { border-radius: 1rem; }
.rounded-full { border-radius: 9999px; }

/* ===== SHADOW UTILITIES ===== */
.shadow-sm { box-shadow: 0 1px 2px 0 rgba(0, 0, 0, 0.05); }
.shadow { box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06); }
.shadow-lg { box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05); }
.shadow-xl { box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04); }

/* ===== TRANSITION UTILITIES ===== */
.transition { transition-property: all; transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1); transition-duration: 150ms; }
.transition-all { transition-property: all; transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1); transition-duration: 150ms; }
.transition-colors { transition-property: color, background-color, border-color, text-decoration-color, fill, stroke; transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1); transition-duration: 150ms; }
.transition-transform { transition-property: transform; transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1); transition-duration: 150ms; }

.duration-200 { transition-duration: 200ms; }
.duration-300 { transition-duration: 300ms; }

/* ===== HOVER EFFECTS ===== */
.hover\:scale-105:hover { transform: scale(1.05); }
.hover\:-translate-y-0\.5:hover { transform: translateY(-0.125rem); }
.hover\:-translate-y-1:hover { transform: translateY(-0.25rem); }

/* ===== FOCUS STATES ===== */
.focus\:outline-none:focus { outline: 2px solid transparent; outline-offset: 2px; }
.focus\:ring-2:focus { box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.5); }
.focus\:ring-4:focus { box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.5); }

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

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

@keyframes bounceGentle {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-5px); }
}

@keyframes pulseGentle {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.8; }
}

.animate-fade-in {
    animation: fadeIn 0.6s ease-in-out;
}

.animate-slide-up {
    animation: slideUp 0.6s ease-out;
}

.animate-bounce-gentle {
    animation: bounceGentle 2s infinite;
}

.animate-pulse-gentle {
    animation: pulseGentle 2s infinite;
}

/* ===== PRINT STYLES ===== */
@media print {
    .no-print { display: none !important; }
    body { background: white !important; }
    .shadow, .shadow-lg, .shadow-xl { box-shadow: none !important; }
}