/* ============================================
   Graduation Project Management System
   Custom Styles
   ============================================ */

/* ─── General ─── */
body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    min-height: 100vh;
}

/* ─── Upload Zone ─── */
.upload-zone {
    border: 2px dashed #dee2e6;
    border-radius: 8px;
    transition: all 0.3s;
    min-height: 80px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.upload-zone:hover {
    border-color: #0d6efd;
    background: rgba(13, 110, 253, 0.03);
}

.card.border-success .upload-zone {
    border-color: #198754;
    background: rgba(25, 135, 84, 0.03);
}

/* ─── Image Thumbnails ─── */
.student-image {
    transition: transform 0.2s;
}

.student-image:hover {
    transform: scale(1.05);
}

/* ─── Cards ─── */
.card {
    border-radius: 12px;
}

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

/* ─── Stats Cards ─── */
.card.border-warning,
.card.border-success,
.card.border-danger {
    border-width: 2px;
}

/* ─── Navbar ─── */
.navbar-brand {
    font-size: 1.1rem;
}

/* ─── Table ─── */
.table th {
    font-weight: 600;
    white-space: nowrap;
}

/* ─── Toast ─── */
.toast {
    border-radius: 8px;
}

/* ─── Progress Bar ─── */
.progress {
    border-radius: 10px;
    overflow: hidden;
}

/* ─── Responsive ─── */
@media (max-width: 768px) {
    .card-body .row .col-md-3,
    .card-body .row .col-md-4 {
        margin-bottom: 0.5rem;
    }
}

/* ─── Login/Register Card ─── */
.card.shadow {
    border: none;
}

/* ─── Form ─── */
.form-control:focus,
.form-select:focus {
    border-color: #0d6efd;
    box-shadow: 0 0 0 0.2rem rgba(13, 110, 253, 0.15);
}

/* ─── Badge on project status ─── */
.badge {
    font-weight: 500;
}

/* ─── Empty state ─── */
.text-muted .bi-inbox {
    opacity: 0.5;
}

/* ─── Smooth transitions ─── */
.card, .btn, .badge {
    transition: all 0.2s ease;
}

.btn:hover {
    transform: translateY(-1px);
}

.card:hover {
    box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.1) !important;
}