/* --- Global Settings --- */
:root {
    --bg-dark: #1a1c1e;
    --card-bg: #25282c;
    --accent-color: #2563eb;
    --accent-hover: #1d4ed8;
    --text-main: #ffffff;
    --text-dim: #a1a1aa;
    --danger: #ef4444;
    --success: #22c55e;
    --transition: all 0.3s ease;
}

body {
    margin: 0;
    padding: 0;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--bg-dark);
    color: var(--text-main);
    line-height: 1.6;
}

/* --- Navbar --- */
.navbar {
    background: #000000;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0,0,0,0.3);
}

.navbar a {
    color: var(--text-main);
    text-decoration: none;
    font-weight: bold;
}

/* --- Container & Layout --- */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
}

/* --- Button Styles --- */
.btn {
    display: inline-block;
    padding: 0.6rem 1.2rem;
    border-radius: 6px;
    text-decoration: none;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    text-align: center;
}

.btn-primary { background: var(--accent-color); color: #fff; }
.btn-primary:hover { background: var(--accent-hover); }

.btn-danger { background: var(--danger); color: #fff; }
.btn-danger:hover { filter: brightness(1.2); }

.btn-success { background: var(--success); color: #fff; }

/* --- Forms & Inputs --- */
input[type="text"], 
input[type="password"], 
input[type="email"], 
textarea {
    width: 100%;
    padding: 12px;
    margin: 10px 0;
    background: #2d3135;
    border: 1px solid #444;
    color: #fff;
    border-radius: 6px;
    box-sizing: border-box;
}

/* --- Photo & Album Grids --- */
.grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 20px;
}

.card {
    background: var(--card-bg);
    border-radius: 12px;
    overflow: hidden;
    transition: var(--transition);
    position: relative;
    border: 1px solid #333;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.4);
}

.card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

/* --- Utility --- */
.text-center { text-align: center; }
.mt-2 { margin-top: 2rem; }