/* DM74 - Bytové družstvo - Hlavní styly */

:root {
    --dm74-primary: #1a5276;
    --dm74-secondary: #2980b9;
    --dm74-accent: #f39c12;
    --dm74-light: #eaf2fb;
    --dm74-dark: #1a252f;
}

/* ========== OBECNÉ ========== */
body {
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    color: #2c3e50;
    background: #f8f9fa;
}

.main-content {
    padding-top: 76px; /* výška navbar */
    min-height: calc(100vh - 200px);
}

/* ========== NAVBAR ========== */
.navbar {
    background: linear-gradient(135deg, var(--dm74-primary) 0%, var(--dm74-secondary) 100%) !important;
    backdrop-filter: blur(10px);
}

.navbar-brand {
    font-size: 1.3rem;
    letter-spacing: 0.5px;
}

/* ========== HERO SEKCE ========== */
.hero-section {
    background: linear-gradient(135deg, var(--dm74-primary) 0%, var(--dm74-secondary) 60%, #1abc9c 100%);
    color: white;
    padding: 80px 0 100px;
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0; right: 0; bottom: 0; left: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    opacity: 0.4;
}

.hero-section .container {
    position: relative;
    z-index: 1;
}

.hero-section h1 {
    font-size: 2.8rem;
    font-weight: 700;
    text-shadow: 0 2px 10px rgba(0,0,0,0.2);
}

.hero-section .lead {
    font-size: 1.2rem;
    opacity: 0.9;
}

/* ========== KARTY ========== */
.card {
    border: none;
    box-shadow: 0 2px 15px rgba(0,0,0,0.08);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    border-radius: 12px;
}

.card:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.12);
}

.card-header {
    border-radius: 12px 12px 0 0 !important;
    font-weight: 600;
}

/* ========== SEKCE ========== */
.section-title {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--dm74-primary);
    position: relative;
    padding-bottom: 15px;
    margin-bottom: 30px;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 60px;
    height: 4px;
    background: var(--dm74-accent);
    border-radius: 2px;
}

.section-title.text-center::after {
    left: 50%;
    transform: translateX(-50%);
}

/* ========== NOVINKY ========== */
.news-card {
    border-left: 4px solid var(--dm74-secondary);
    transition: border-color 0.2s;
}

.news-card:hover {
    border-left-color: var(--dm74-accent);
}

.news-date {
    font-size: 0.8rem;
    color: #7f8c8d;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* ========== QUICK LINKS ========== */
.quick-link-card {
    text-align: center;
    padding: 30px 20px;
    color: white;
    border-radius: 16px;
    text-decoration: none;
    display: block;
    transition: all 0.3s ease;
}

.quick-link-card:hover {
    color: white;
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(0,0,0,0.2);
}

.quick-link-card i {
    font-size: 2.5rem;
    margin-bottom: 12px;
    display: block;
}

/* ========== PŘIHLÁŠENÍ ========== */
.login-card {
    max-width: 460px;
    margin: 60px auto;
}

.login-card .card {
    border-radius: 16px;
}

.login-header {
    background: linear-gradient(135deg, var(--dm74-primary), var(--dm74-secondary));
    color: white;
    padding: 30px;
    border-radius: 16px 16px 0 0;
    text-align: center;
}

/* ========== ČLENSKÁ SEKCE ========== */
.members-header {
    background: linear-gradient(135deg, #1a3a4a 0%, #2c5f7a 100%);
    color: white;
    padding: 40px 0;
    margin-bottom: 40px;
}

.member-badge {
    background: var(--dm74-accent);
    color: white;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
}

/* ========== DOKUMENT ========== */
.document-item {
    display: flex;
    align-items: center;
    padding: 15px;
    border: 1px solid #e9ecef;
    border-radius: 10px;
    margin-bottom: 10px;
    transition: background 0.2s;
    text-decoration: none;
    color: inherit;
}

.document-item:hover {
    background: var(--dm74-light);
    color: var(--dm74-primary);
    border-color: var(--dm74-secondary);
}

.document-item i {
    font-size: 1.8rem;
    color: var(--dm74-secondary);
    margin-right: 15px;
    flex-shrink: 0;
}

/* ========== FOTOGALERIE ========== */
.gallery-item {
    overflow: hidden;
    border-radius: 12px;
    aspect-ratio: 4/3;
    background: #dee2e6;
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.gallery-item:hover img {
    transform: scale(1.05);
}

.gallery-placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 200px;
    background: linear-gradient(135deg, #e9ecef, #dee2e6);
    border-radius: 12px;
    color: #adb5bd;
    font-size: 3rem;
}

/* ========== VOLNÉ PROSTORY ========== */
.space-badge {
    font-size: 0.75rem;
    padding: 5px 10px;
}

/* ========== KONTAKT ========== */
.contact-card {
    border-left: 4px solid var(--dm74-accent) !important;
}

/* ========== UPOZORNĚNÍ ========== */
.alert {
    border-radius: 12px;
    border: none;
}

/* ========== TLAČÍTKA ========== */
.btn-primary {
    background: linear-gradient(135deg, var(--dm74-primary), var(--dm74-secondary));
    border: none;
    border-radius: 8px;
    font-weight: 600;
    padding: 10px 24px;
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--dm74-secondary), var(--dm74-primary));
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(41, 128, 185, 0.4);
}

.btn-warning {
    border-radius: 8px;
    font-weight: 600;
}

/* ========== FOOTER ========== */
.footer {
    background: var(--dm74-dark) !important;
}

.footer a:hover {
    color: white !important;
}

/* ========== RESPONZIVITA ========== */
@media (max-width: 768px) {
    .hero-section h1 {
        font-size: 1.9rem;
    }
    .hero-section {
        padding: 50px 0 70px;
    }
    .section-title {
        font-size: 1.5rem;
    }
}

/* ========== NÁSTĚNKA ========== */
.notice-board-item {
    border: 1px solid #e9ecef;
    border-radius: 12px;
    padding: 20px;
    margin-bottom: 15px;
    background: white;
}

.notice-board-item.pinned {
    border-color: var(--dm74-accent);
    background: #fffdf0;
}

/* ========== ANIMATE IN ========== */
.fade-in {
    animation: fadeIn 0.5s ease-in;
}

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