/* Theme: Ice Blue Light (Default) */
:root {
    --bs-primary: #1ba0b0;
    --bs-primary-rgb: 27, 160, 176;
    --primary-color: #1ba0b0;
    --primary-light: #e6f7f9;
    --primary-ice: #92DCE5;
    --bg-body: #f8fafc;
    --card-bg: #ffffff;
    --card-border: #e2e8f0;
    --text-color: #1e293b;
    --text-muted-color: #64748b;
    --radius-main: 12px;
}

body {
    background-color: var(--bg-body);
    color: var(--text-color);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

main {
    flex: 1;
}

a {
    color: var(--primary-color);
    text-decoration: none;
    transition: all 0.2s ease;
}

a:hover {
    color: #127480;
}

/* Navbar */
.navbar-custom {
    background-color: #ffffff;
    border-bottom: 1px solid var(--card-border);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.03);
}

.brand-text {
    font-weight: 800;
    font-size: 1.35rem;
    color: #0f172a;
}

.brand-badge {
    background: var(--primary-light);
    color: var(--primary-color);
    font-size: 0.75rem;
    padding: 2px 8px;
    border-radius: 6px;
    font-weight: 700;
}

/* Buttons */
.btn-primary {
    background-color: var(--primary-color) !important;
    border-color: var(--primary-color) !important;
    color: #ffffff !important;
    font-weight: 600;
    border-radius: 8px;
    transition: all 0.2s ease;
}

.btn-primary:hover, .btn-primary:focus {
    background-color: #158390 !important;
    border-color: #158390 !important;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(27, 160, 176, 0.25);
}

.btn-outline-primary {
    color: var(--primary-color) !important;
    border-color: var(--primary-color) !important;
    font-weight: 600;
    border-radius: 8px;
}

.btn-outline-primary:hover {
    background-color: var(--primary-color) !important;
    color: #ffffff !important;
}

.btn-ice {
    background-color: var(--primary-ice) !important;
    border-color: var(--primary-ice) !important;
    color: #093338 !important;
    font-weight: 700;
}

.btn-ice:hover {
    background-color: #79cbdb !important;
    border-color: #79cbdb !important;
}

/* Cards */
.card-custom {
    background-color: #ffffff;
    border: 1px solid var(--card-border);
    border-radius: var(--radius-main);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.03);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.card-custom:hover {
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.06);
}

.card-header-custom {
    background: transparent;
    border-bottom: 1px solid var(--card-border);
    padding: 16px 22px;
    font-weight: 700;
}

/* Hero Section */
.hero-section {
    background: linear-gradient(180deg, #eef9fa 0%, #f8fafc 100%);
    border-bottom: 1px solid #e2e8f0;
    padding: 50px 0 40px;
}

/* Dropzone */
.upload-dropzone {
    border: 2px dashed #92DCE5;
    background-color: #ffffff;
    border-radius: 16px;
    padding: 50px 20px;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s ease;
    box-shadow: 0 6px 20px rgba(146, 220, 229, 0.12);
}

.upload-dropzone:hover, .upload-dropzone.dragover {
    border-color: var(--primary-color);
    background-color: #f2fbfd;
    transform: scale(1.005);
}

.dropzone-icon {
    font-size: 3.5rem;
    color: var(--primary-color);
    margin-bottom: 12px;
}

/* Footer */
.footer-custom {
    background-color: #ffffff;
    border-top: 1px solid var(--card-border);
    padding: 30px 0;
    color: var(--text-muted-color);
}

/* Image Card Grid */
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 20px;
}

.gallery-card {
    background: #ffffff;
    border: 1px solid var(--card-border);
    border-radius: 10px;
    overflow: hidden;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.gallery-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.08);
}

.gallery-thumb {
    width: 100%;
    height: 180px;
    object-fit: cover;
    display: block;
    background: #f1f5f9;
}

.gallery-info {
    padding: 12px 14px;
}