/* ==========================================
   UBBDMS - Master CSS
   ========================================== */

@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600;700;800&display=swap');

:root {
    --primary: #c0392b;
    --primary-dark: #922b21;
    --primary-light: #e74c3c;
    --secondary: #2c3e50;
    --accent: #f39c12;
    --success: #27ae60;
    --warning: #f39c12;
    --danger: #c0392b;
    --light-bg: #f8f9fa;
    --card-shadow: 0 10px 30px rgba(0,0,0,0.08);
    --hover-shadow: 0 20px 40px rgba(192,57,43,0.15);
    --border-radius: 15px;
    --transition: all 0.3s ease;
}

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

body {
    font-family: 'Poppins', sans-serif;
    background: #f0f2f5;
    color: #2c3e50;
    overflow-x: hidden;
}

/* ==========================================
   TOAST NOTIFICATIONS
   ========================================== */
.toast-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.toast-notification {
    background: white;
    border-radius: 12px;
    padding: 15px 20px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.15);
    display: flex;
    align-items: center;
    gap: 12px;
    min-width: 300px;
    max-width: 400px;
    animation: slideIn 0.4s ease;
    border-left: 4px solid #27ae60;
}

.toast-notification.error {
    border-left-color: #c0392b;
}

.toast-notification.warning {
    border-left-color: #f39c12;
}

.toast-notification.info {
    border-left-color: #3498db;
}

.toast-icon { font-size: 1.3rem; }

.toast-message {
    flex: 1;
    font-size: 0.9rem;
    font-weight: 500;
    color: #2c3e50;
}

.toast-close {
    background: none;
    border: none;
    color: #999;
    cursor: pointer;
    font-size: 1rem;
    padding: 0;
    line-height: 1;
}

.toast-progress {
    position: absolute;
    bottom: 0;
    left: 0;
    height: 3px;
    background: #27ae60;
    border-radius: 0 0 12px 12px;
    animation: progress 3s linear;
}

.toast-notification.error .toast-progress { background: #c0392b; }
.toast-notification.warning .toast-progress { background: #f39c12; }
.toast-notification.info .toast-progress { background: #3498db; }

@keyframes slideIn {
    from { transform: translateX(100px); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

@keyframes slideOut {
    from { transform: translateX(0); opacity: 1; }
    to { transform: translateX(100px); opacity: 0; }
}

@keyframes progress {
    from { width: 100%; }
    to { width: 0%; }
}

/* ==========================================
   PAGE LOADER
   ========================================== */
.page-loader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: white;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 99999;
    transition: opacity 0.5s ease;
}

.page-loader.hidden {
    opacity: 0;
    pointer-events: none;
}

.loader-content { text-align: center; }

.loader-blood {
    font-size: 3rem;
    animation: pulse 1s infinite;
}

.loader-bar {
    width: 200px;
    height: 4px;
    background: #f0f0f0;
    border-radius: 10px;
    margin: 15px auto 0;
    overflow: hidden;
}

.loader-bar-inner {
    height: 100%;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    border-radius: 10px;
    animation: loading 1.5s ease infinite;
}

@keyframes loading {
    0% { width: 0%; }
    50% { width: 70%; }
    100% { width: 100%; }
}

@keyframes pulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.1); }
    100% { transform: scale(1); }
}

/* ==========================================
   NAVBAR
   ========================================== */
.navbar {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark)) !important;
    box-shadow: 0 4px 20px rgba(192,57,43,0.3);
    padding: 12px 0;
    transition: var(--transition);
}

.navbar-brand {
    color: white !important;
    font-weight: 800 !important;
    font-size: 1.4rem !important;
    letter-spacing: 1px;
}

.nav-link {
    color: rgba(255,255,255,0.9) !important;
    font-weight: 500;
    padding: 8px 15px !important;
    border-radius: 8px;
    transition: var(--transition);
}

.nav-link:hover {
    color: white !important;
    background: rgba(255,255,255,0.15);
    transform: translateY(-1px);
}

.navbar-toggler {
    border: 2px solid rgba(255,255,255,0.5) !important;
    padding: 5px 10px !important;
}

.navbar-toggler:focus { box-shadow: none !important; }

/* ==========================================
   BUTTONS
   ========================================== */
.btn {
    font-family: 'Poppins', sans-serif;
    font-weight: 600;
    border-radius: 10px !important;
    padding: 10px 25px;
    transition: var(--transition);
    border: none;
    position: relative;
    overflow: hidden;
}

.btn::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: rgba(255,255,255,0.2);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn:active::after {
    width: 300px;
    height: 300px;
}

.btn-danger {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark)) !important;
    border: none !important;
    box-shadow: 0 4px 15px rgba(192,57,43,0.3);
    color: white !important;
}

.btn-danger:hover {
    background: linear-gradient(135deg, var(--primary-dark), #7b241c) !important;
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(192,57,43,0.4);
}

.btn-outline-danger {
    border: 2px solid var(--primary) !important;
    color: var(--primary) !important;
    background: transparent !important;
}

.btn-outline-danger:hover {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark)) !important;
    color: white !important;
    transform: translateY(-2px);
}

.btn-success {
    background: linear-gradient(135deg, #27ae60, #1e8449) !important;
    border: none !important;
    color: white !important;
}

.btn-success:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(39,174,96,0.4);
}

.btn-dark {
    background: linear-gradient(135deg, #2c3e50, #1a252f) !important;
    border: none !important;
    color: white !important;
}

.btn-dark:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(44,62,80,0.4);
}

/* Loading button state */
.btn-loading {
    opacity: 0.8;
    pointer-events: none;
}

.btn-loading::before {
    content: '';
    display: inline-block;
    width: 14px;
    height: 14px;
    border: 2px solid rgba(255,255,255,0.5);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin-right: 8px;
    vertical-align: middle;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* ==========================================
   CARDS
   ========================================== */
.card {
    border: none !important;
    border-radius: var(--border-radius) !important;
    box-shadow: var(--card-shadow) !important;
    transition: var(--transition);
    animation: fadeInUp 0.4s ease;
}

.card:hover {
    box-shadow: var(--hover-shadow) !important;
}

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

/* ==========================================
   FORM CONTROLS
   ========================================== */
.form-control, .form-select {
    font-family: 'Poppins', sans-serif;
    border: 2px solid #e9ecef !important;
    border-radius: 10px !important;
    padding: 12px 15px !important;
    font-size: 0.95rem;
    transition: var(--transition);
    background: #f8f9fa;
}

.form-control:focus, .form-select:focus {
    border-color: var(--primary) !important;
    box-shadow: 0 0 0 4px rgba(192,57,43,0.1) !important;
    background: white;
}

.form-control.is-invalid {
    border-color: #dc3545 !important;
    background: #fff5f5;
}

.form-control.is-valid {
    border-color: #27ae60 !important;
    background: #f0fff4;
}

label {
    font-weight: 600;
    color: var(--secondary);
    margin-bottom: 6px;
    font-size: 0.9rem;
}

.invalid-feedback {
    font-size: 0.8rem;
    color: #dc3545;
    margin-top: 4px;
}

/* ==========================================
   AUTH PAGES (Login/Register)
   ========================================== */
.auth-page {
    min-height: 100vh;
    background: linear-gradient(135deg, #c0392b 0%, #922b21 50%, #2c3e50 100%);
    display: flex;
    align-items: center;
    padding: 20px;
}

.auth-card {
    background: white;
    border-radius: 20px !important;
    box-shadow: 0 25px 50px rgba(0,0,0,0.2) !important;
    overflow: hidden;
    animation: scaleIn 0.4s ease;
}

@keyframes scaleIn {
    from { opacity: 0; transform: scale(0.9); }
    to { opacity: 1; transform: scale(1); }
}

.auth-header {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
    padding: 30px;
    text-align: center;
}

.auth-header h2 {
    font-weight: 800;
    margin: 0;
    font-size: 1.8rem;
}

.auth-header p {
    opacity: 0.9;
    margin: 5px 0 0;
    font-size: 0.9rem;
}

.auth-body { padding: 30px; }

/* ==========================================
   NAVBAR DONOR PAGES
   ========================================== */
.stat-card {
    border-left: 4px solid var(--primary);
}

.stat-card-modern {
    background: white;
    border-radius: var(--border-radius);
    padding: 20px;
    box-shadow: var(--card-shadow);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.stat-card-modern::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 5px;
    height: 100%;
    background: linear-gradient(var(--primary), var(--primary-dark));
}

.stat-card-modern:hover {
    transform: translateY(-5px);
    box-shadow: var(--hover-shadow);
}

/* ==========================================
   BLOOD BADGE
   ========================================== */
.blood-badge {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    box-shadow: 0 4px 15px rgba(192,57,43,0.3);
    flex-shrink: 0;
}

/* ==========================================
   TABLE
   ========================================== */
.table {
    font-family: 'Poppins', sans-serif;
    font-size: 0.9rem;
}

.table thead th {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
    font-weight: 600;
    border: none !important;
    padding: 12px 15px;
    white-space: nowrap;
}

.table tbody tr {
    transition: var(--transition);
}

.table tbody tr:hover {
    background: rgba(192,57,43,0.05);
}

.table tbody td {
    padding: 12px 15px;
    vertical-align: middle;
    border-color: #f0f0f0 !important;
}

/* ==========================================
   BADGES
   ========================================== */
.badge {
    font-family: 'Poppins', sans-serif;
    font-weight: 600;
    padding: 5px 10px;
    border-radius: 20px;
    font-size: 0.78rem;
}

/* ==========================================
   SIDEBAR (Admin)
   ========================================== */
.sidebar {
    background: linear-gradient(180deg, #1a252f, #2c3e50) !important;
    min-height: 100vh;
    width: 220px;
    flex-shrink: 0;
    box-shadow: 4px 0 20px rgba(0,0,0,0.1);
    transition: var(--transition);
}

.sidebar a {
    color: #bdc3c7 !important;
    display: flex !important;
    align-items: center;
    gap: 10px;
    padding: 12px 15px !important;
    text-decoration: none;
    border-radius: 10px !important;
    margin: 3px 8px !important;
    font-weight: 500;
    transition: var(--transition);
    font-size: 0.9rem;
}

.sidebar a:hover {
    background: rgba(192,57,43,0.2) !important;
    color: white !important;
    transform: translateX(5px);
}

.sidebar a.active {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark)) !important;
    color: white !important;
    box-shadow: 0 4px 15px rgba(192,57,43,0.3);
}

/* ==========================================
   ALERTS
   ========================================== */
.alert {
    border: none;
    border-radius: 10px;
    font-weight: 500;
    padding: 12px 18px;
    font-size: 0.9rem;
}

.alert-success {
    background: rgba(39,174,96,0.1);
    color: #1e8449;
    border-left: 4px solid #27ae60;
}

.alert-danger {
    background: rgba(192,57,43,0.1);
    color: var(--primary-dark);
    border-left: 4px solid var(--primary);
}

.alert-info {
    background: rgba(52,152,219,0.1);
    color: #1a5276;
    border-left: 4px solid #3498db;
}

.alert-warning {
    background: rgba(243,156,18,0.1);
    color: #7d6608;
    border-left: 4px solid #f39c12;
}

/* ==========================================
   SECTION TITLE
   ========================================== */
.section-title-bar {
    color: var(--primary);
    font-weight: 700;
    font-size: 1.1rem;
    padding-bottom: 10px;
    margin-bottom: 20px;
    border-bottom: 3px solid var(--primary);
    display: flex;
    align-items: center;
    gap: 8px;
}

/* ==========================================
   DONOR/REQUEST CARDS
   ========================================== */
.donor-card, .request-card, .history-card, .notif-card {
    border-left: 4px solid var(--primary) !important;
    transition: var(--transition);
    background: white;
    border-radius: var(--border-radius) !important;
}

.donor-card:hover, .request-card:hover, .history-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--hover-shadow) !important;
}

.notif-unread {
    background: linear-gradient(135deg, #fff5f5, #fff) !important;
    border-left: 4px solid var(--primary) !important;
}

.notif-read {
    background: white !important;
    border-left: 4px solid #ddd !important;
    opacity: 0.8;
}

/* ==========================================
   ELIGIBILITY
   ========================================== */
.eligible { color: var(--success); font-weight: 700; }
.not-eligible { color: var(--primary); font-weight: 700; }

/* ==========================================
   PROGRESS BAR
   ========================================== */
.progress {
    border-radius: 10px;
    background: #f0f0f0;
    height: 8px !important;
}

.progress-bar {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    border-radius: 10px;
}

/* ==========================================
   MODAL
   ========================================== */
.modal-content {
    border: none;
    border-radius: var(--border-radius);
    box-shadow: 0 25px 50px rgba(0,0,0,0.2);
    animation: scaleIn 0.3s ease;
}

.modal-header {
    border-radius: var(--border-radius) var(--border-radius) 0 0;
    padding: 18px 25px;
}

/* ==========================================
   SCROLLBAR
   ========================================== */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: #f1f1f1; }
::-webkit-scrollbar-thumb {
    background: linear-gradient(var(--primary), var(--primary-dark));
    border-radius: 10px;
}

/* ==========================================
   MOBILE SIDEBAR
   ========================================== */
.mobile-sidebar-btn {
    display: none;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
    border: none;
    padding: 10px 15px;
    border-radius: 10px;
    cursor: pointer;
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 15px;
    font-family: 'Poppins', sans-serif;
}

.sidebar-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.5);
    z-index: 998;
}

/* ==========================================
   RESPONSIVE - TABLET
   ========================================== */
@media (max-width: 992px) {
    .sidebar {
        width: 190px;
    }
    .sidebar a {
        font-size: 0.85rem;
        padding: 10px 12px !important;
    }
}

/* ==========================================
   RESPONSIVE - MOBILE
   ========================================== */
@media (max-width: 768px) {

    /* SIDEBAR */
    .mobile-sidebar-btn { display: block !important; }

    .sidebar {
        position: fixed !important;
        left: -260px;
        top: 0;
        height: 100vh;
        width: 250px !important;
        z-index: 999;
        padding-top: 60px !important;
        transition: left 0.3s ease !important;
    }

    .sidebar.open { left: 0 !important; }

    .sidebar-overlay.open { display: block; }

    /* MAIN CONTENT */
    .main-content { padding: 15px !important; }

    /* NAVBAR */
    .navbar-collapse {
        background: rgba(0,0,0,0.2);
        border-radius: 10px;
        padding: 10px;
        margin-top: 10px;
    }

    /* AUTH PAGES */
    .auth-page { padding: 15px; align-items: flex-start; padding-top: 30px; }
    .auth-header { padding: 20px; }
    .auth-header h2 { font-size: 1.4rem; }
    .auth-body { padding: 20px; }

    /* CARDS */
    .card { border-radius: 12px !important; }

    /* TABLES */
    .table thead th { font-size: 0.75rem; padding: 8px; }
    .table tbody td { font-size: 0.8rem; padding: 8px; }

    /* BLOOD BADGE */
    .blood-badge {
        width: 40px !important;
        height: 40px !important;
        font-size: 0.75rem !important;
    }

    /* DONOR CARDS */
    .donor-card .d-flex,
    .request-card .d-flex {
        flex-wrap: wrap;
        gap: 10px;
    }

    /* BUTTONS */
    .btn { font-size: 0.9rem; }

    /* FORMS */
    input, select, textarea {
        font-size: 16px !important;
    }

    /* TOAST */
    .toast-container {
        top: 10px;
        right: 10px;
        left: 10px;
    }
    .toast-notification {
        min-width: unset;
        width: 100%;
    }

    /* STATS */
    .stat-card-modern { padding: 15px; }
}

@media (max-width: 480px) {
    .navbar-brand { font-size: 1.1rem !important; }
    .section-title-bar { font-size: 1rem; }
}