/* ========================================
   UPSI CONSULTATION BOOKING SYSTEM
   Complete Stylesheet
   Colors: Navy Blue (#1e3c72), Gold (#ffc107), Red (#dc3545)
======================================== */

/* === ROOT VARIABLES === */
:root {
    --navy-primary: #1e3c72;
    --navy-dark: #152a54;
    --navy-light: #2a4d8f;
    --gold-primary: #ffc107;
    --gold-dark: #e0a800;
    --gold-light: #ffd454;
    --red-accent: #dc3545;
    --red-light: #ff4757;
    --white: #ffffff;
    --gray-light: #f8f9fa;
    --gray-medium: #e9ecef;
    --gray-dark: #6c757d;
    --text-primary: #333333;
    --text-secondary: #666666;
    --success-green: #28a745;
    --info-blue: #17a2b8;
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.08);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.12);
    --shadow-lg: 0 8px 24px rgba(0,0,0,0.15);
    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;

    background:
        linear-gradient(rgba(0,0,0,0.25), rgba(0,0,0,0.25)),
        url("../images/BackgroundUpsi.png");

    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    background-attachment: fixed;

    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    line-height: 1.6;
    color: var(--text-primary);
}

/* === TYPOGRAPHY === */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    color: var(--navy-primary);
    margin-bottom: 0.5em;
}

h1 { font-size: 2rem; }
h2 { font-size: 1.75rem; text-align: center; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }

p {
    margin-bottom: 1rem;
}

.subtitle {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-top: -10px;
    margin-bottom: 20px;
    text-align: center;
}

/* Center all paragraph text in cards */
.card p {
    text-align: center;
}

.card.dashboard p {
    text-align: center;
}

/* === MAIN CARD CONTAINER === */
.card {
    background: var(--white);
    padding: 40px;
    border-radius: 16px;
    box-shadow: var(--shadow-lg);
    width: 100%;
    max-width: 450px;
    margin: 20px auto;
    animation: slideUp 0.5s ease;
}

.card.dashboard {
    max-width: 1000px;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* === LOGO === */
.login-logo {
    display: block;
    width: 100px;
    height: auto;
    margin: 0 auto 20px;
    animation: fadeIn 0.8s ease;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.system-name {
    text-align: center;
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--navy-primary);
    margin-bottom: 25px;
    letter-spacing: 0.5px;
}

/* === FORM ELEMENTS === */
input[type="text"],
input[type="email"],
input[type="password"],
input[type="date"],
input[type="time"],
select,
textarea {
    width: 100%;
    padding: 14px 16px;
    margin-bottom: 18px;
    border: 2px solid var(--gray-medium);
    border-radius: 10px;
    font-size: 1rem;
    font-family: inherit;
    transition: var(--transition);
    background: var(--gray-light);
    color: var(--text-primary);
}

input:focus,
select:focus,
textarea:focus {
    outline: none;
    border-color: var(--navy-primary);
    background: var(--white);
    box-shadow: 0 0 0 3px rgba(30, 60, 114, 0.1);
}

textarea {
    min-height: 120px;
    resize: vertical;
}

select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%231e3c72' d='M6 9L1 4h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 16px center;
    padding-right: 40px;
}

input::placeholder,
textarea::placeholder {
    color: var(--gray-dark);
    opacity: 0.7;
}

/* === BUTTONS === */
button,
.btn {
    width: 100%;
    padding: 14px 20px;
    background: linear-gradient(135deg, var(--navy-primary) 0%, var(--navy-light) 100%);
    color: var(--white);
    border: none;
    border-radius: 10px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    display: inline-block;
    text-align: center;
    box-shadow: var(--shadow-sm);
    letter-spacing: 0.5px;
}

button:hover,
.btn:hover {
    background: linear-gradient(135deg, var(--navy-dark) 0%, var(--navy-primary) 100%);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

button:active,
.btn:active {
    transform: translateY(0);
}

.btn.secondary {
    background: var(--gray-medium);
    color: var(--text-primary);
    margin-top: 10px;
}

.btn.secondary:hover {
    background: var(--gray-dark);
    color: var(--white);
}

/* Specific button with icon */
.btn i {
    margin-right: 8px;
}

/* === LOGIN/REGISTER LINKS === */
.login-link {
    text-align: center;
    margin-top: 20px;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.login-link a {
    color: var(--navy-primary);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
}

.login-link a:hover {
    color: var(--navy-light);
    text-decoration: underline;
}

/* === ALERT MESSAGES === */
.error-msg,
.alert-error {
    background: #ffebee;
    color: var(--red-accent);
    padding: 12px 16px;
    border-radius: 8px;
    margin-bottom: 20px;
    border-left: 4px solid var(--red-accent);
    font-size: 0.95rem;
}

.success-msg,
.alert-success {
    background: #d1e7dd;
    color: #0f5132;
    padding: 12px 16px;
    border-radius: 8px;
    margin-bottom: 20px;
    border-left: 4px solid var(--success-green);
    font-size: 0.95rem;
}

.alert.success {
    background-color: #d1e7dd;
    color: #0f5132;
    border: 1px solid #badbcc;
    padding: 12px 15px;
    margin-bottom: 20px;
    border-radius: 6px;
    font-size: 14px;
    text-align: center;
    font-weight: 500;
}

.alert.error {
    background-color: #f8d7da;
    color: #842029;
    border: 1px solid #f5c2c7;
    padding: 12px 15px;
    margin-bottom: 20px;
    border-radius: 6px;
    font-size: 14px;
    text-align: center;
    font-weight: 500;
}

/* === LOGOUT BUTTON === */
.logout-btn {
    position: fixed;
    top: 20px;
    right: 20px;
    background: var(--red-accent);
    color: var(--white);
    padding: 10px 20px;
    border-radius: 25px;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.9rem;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    z-index: 1000;
}

.logout-btn:hover {
    background: var(--red-light);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

/* === TABLES === */
table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 20px;
    background: var(--white);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

thead {
    background: var(--white);
    color: var(--text-primary);
    border-bottom: 2px solid var(--gray-medium);
}

th {
    padding: 16px;
    text-align: center;
    font-weight: 700;
    text-transform: uppercase;
    font-size: 0.85rem;
    letter-spacing: 0.5px;
    color: #000000;
}

td {
    padding: 14px 16px;
    border-bottom: 1px solid var(--gray-medium);
}

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

tbody tr:hover {
    background: var(--gray-light);
}

tbody tr:last-child td {
    border-bottom: none;
}

/* === STATUS BADGES === */
.status-badge,
.status {
    padding: 8px 16px;
    border-radius: 25px;
    font-size: 0.85rem;
    font-weight: 600;
    display: inline-block;
    text-transform: capitalize;
}

/* Status Approved/Available - Green */
.bg-available,
.status.approved {
    background: #d4edda;
    color: #155724;
    border: 2px solid #28a745;
}

/* Status Booked - Blue */
.bg-booked {
    background: #d1ecf1;
    color: #0c5460;
    border: 2px solid #17a2b8;
}

/* Status Cancelled/Rejected - Red */
.bg-cancelled,
.status.rejected {
    background: #f8d7da;
    color: #721c24;
    border: 2px solid #dc3545;
}

/* Status Pending - Yellow/Orange */
.status.pending {
    background: #fff3cd;
    color: #856404;
    border: 2px solid #ffc107;
}

/* === DASHBOARD STATISTICS === */
.dashboard-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.stat-box {
    background: var(--white);
    border: 1px solid var(--gray-medium);
    border-left: 5px solid var(--gold-primary);
    padding: 24px;
    border-radius: 12px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.stat-box:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.stat-box.success {
    border-left-color: var(--success-green);
    background: #f8fff9;
}

.stat-box.notification {
    border-left-color: var(--info-blue);
    background: #f0f9ff;
}

.stat-box h3 {
    margin: 0 0 12px 0;
    font-size: 0.85rem;
    color: var(--gray-dark);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-weight: 600;
    text-align: center;
}

.stat-box .number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--navy-primary);
    margin-bottom: 8px;
    line-height: 1;
    text-align: center;
}

.stat-box .details {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--success-green);
    margin-bottom: 8px;
    text-align: center;
}

.stat-box small {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.5;
    display: block;
    text-align: center;
}

/* === ACTION CARDS/GRID === */
.action-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-top: 25px;
}

.action-card {
    background: var(--white);
    border: 2px solid var(--gray-medium);
    padding: 30px 20px;
    border-radius: 12px;
    text-align: center;
    text-decoration: none;
    color: var(--text-primary);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-sm);
}

.action-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: var(--navy-primary);
    background: linear-gradient(135deg, rgba(30, 60, 114, 0.03) 0%, rgba(255, 193, 7, 0.03) 100%);
}

.action-card .icon-large {
    font-size: 3rem;
    margin-bottom: 12px;
    filter: grayscale(0.3);
}

.action-card h4 {
    margin: 10px 0 8px;
    font-size: 1.15rem;
    color: var(--navy-primary);
}

.action-card p {
    margin: 0;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* === HORIZONTAL RULE === */
hr {
    border: none;
    border-top: 2px solid var(--gray-medium);
    margin: 25px 0;
    opacity: 0.5;
}

/* === EMPTY STATE === */
.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--gray-dark);
}

.empty-state p {
    font-size: 1.2rem;
    margin-bottom: 20px;
}

.empty-state .btn {
    max-width: 300px;
    margin: 0 auto;
}

/* === SCROLLABLE AREAS === */
.slot-scroll,
.booking-scroll,
.request-scroll {
    max-height: 450px;
    overflow-y: auto;
    border: 1px solid var(--gray-medium);
    border-radius: 8px;
    margin: 20px 0;
}

.slot-scroll::-webkit-scrollbar,
.booking-scroll::-webkit-scrollbar,
.request-scroll::-webkit-scrollbar {
    width: 8px;
}

.slot-scroll::-webkit-scrollbar-track,
.booking-scroll::-webkit-scrollbar-track,
.request-scroll::-webkit-scrollbar-track {
    background: var(--gray-light);
    border-radius: 10px;
}

.slot-scroll::-webkit-scrollbar-thumb,
.booking-scroll::-webkit-scrollbar-thumb,
.request-scroll::-webkit-scrollbar-thumb {
    background: var(--navy-primary);
    border-radius: 10px;
}

.slot-scroll::-webkit-scrollbar-thumb:hover,
.booking-scroll::-webkit-scrollbar-thumb:hover,
.request-scroll::-webkit-scrollbar-thumb:hover {
    background: var(--navy-dark);
}

/* === FILTER CONTROLS === */
.filter-controls,
.filter-container {
    display: flex;
    gap: 12px;
    margin: 20px 0;
    flex-wrap: wrap;
}

.filter-controls input,
.filter-controls select,
.filter-container input,
.filter-container select {
    flex: 1;
    min-width: 200px;
    margin-bottom: 0;
}

/* === ACTION BUTTONS CONTAINER === */
.action-buttons {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-top: 20px;
}

.btn-full {
    width: 100%;
    padding: 14px 20px;
    border-radius: 10px;
    border: none;
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
    text-align: center;
    transition: var(--transition);
    font-size: 1rem;
}

.btn-create {
    background: linear-gradient(135deg, var(--navy-primary) 0%, var(--navy-light) 100%);
    color: var(--white);
}

.btn-create:hover {
    background: linear-gradient(135deg, var(--navy-dark) 0%, var(--navy-primary) 100%);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-back {
    background: var(--gray-medium);
    color: var(--text-primary);
}

.btn-back:hover {
    background: var(--gray-dark);
    color: var(--white);
}

/* === INDIVIDUAL ACTION BUTTONS === */
.btn-group {
    display: flex;
    justify-content: center;
    gap: 8px;
    flex-wrap: wrap;
}

.btn-action {
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    text-decoration: none;
    border: 2px solid transparent;
    transition: var(--transition);
    display: inline-block;
}

.btn-approve {
    background: #d4edda;
    color: #155724;
    border-color: #28a745;
}

.btn-approve:hover {
    background: #28a745;
    color: var(--white);
}

.btn-reject {
    background: #f8d7da;
    color: #721c24;
    border-color: var(--red-accent);
}

.btn-reject:hover {
    background: var(--red-accent);
    color: var(--white);
}

.btn-delete {
    color: var(--red-accent);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.9rem;
    padding: 6px 12px;
    border: 2px solid var(--red-accent);
    border-radius: 8px;
    transition: var(--transition);
    display: inline-block;
}

.btn-delete:hover {
    background: var(--red-accent);
    color: var(--white);
    transform: scale(1.05);
}

.btn-edit {
    padding: 6px 12px;
    border: 2px solid var(--info-blue);
    border-radius: 8px;
    font-weight: 600;
    text-decoration: none;
    color: var(--info-blue);
    transition: var(--transition);
    display: inline-block;
    margin-right: 5px;
    font-size: 0.9rem;
}

.btn-edit:hover {
    background: var(--info-blue);
    color: var(--white);
    transform: scale(1.05);
}

.btn-secondary {
    background: var(--gray-medium);
    color: var(--text-primary);
    padding: 12px 20px;
    text-align: center;
    text-decoration: none;
    border-radius: 10px;
    font-weight: 600;
    transition: var(--transition);
    display: block;
    margin-top: 10px;
}

.btn-secondary:hover {
    background: var(--gray-dark);
    color: var(--white);
}

/* === RESPONSIVE DESIGN === */

/* Tablet (768px and below) */
@media (max-width: 768px) {
    body {
        padding: 10px;
    }

    .card {
        padding: 30px 20px;
        border-radius: 12px;
    }

    .card.dashboard {
        max-width: 100%;
    }

    h1 { font-size: 1.75rem; }
    h2 { font-size: 1.5rem; }
    h3 { font-size: 1.25rem; }

    .dashboard-stats {
        grid-template-columns: 1fr;
    }

    .action-grid {
        grid-template-columns: 1fr;
    }

    .logout-btn {
        top: 10px;
        right: 10px;
        padding: 8px 16px;
        font-size: 0.85rem;
    }

    table {
        font-size: 0.9rem;
    }

    th, td {
        padding: 10px 8px;
    }

    .filter-controls,
    .filter-container {
        flex-direction: column;
    }

    .filter-controls input,
    .filter-controls select,
    .filter-container input,
    .filter-container select {
        width: 100%;
        min-width: 100%;
    }

    .btn-group {
        flex-direction: column;
        gap: 5px;
    }

    .btn-action {
        width: 100%;
    }
}

/* Mobile (480px and below) */
@media (max-width: 480px) {
    html {
        font-size: 14px;
    }

    .card {
        padding: 25px 15px;
    }

    h1 { font-size: 1.5rem; }
    h2 { font-size: 1.3rem; }

    .login-logo {
        width: 80px;
    }

    .system-name {
        font-size: 1rem;
    }

    input[type="text"],
    input[type="email"],
    input[type="password"],
    input[type="date"],
    input[type="time"],
    select,
    textarea {
        padding: 12px 14px;
        font-size: 0.95rem;
    }

    button,
    .btn {
        padding: 12px 18px;
        font-size: 0.95rem;
    }

    .stat-box .number {
        font-size: 2rem;
    }

    .action-card {
        padding: 20px 15px;
    }

    .action-card .icon-large {
        font-size: 2.5rem;
    }

    table {
        font-size: 0.85rem;
    }

    th, td {
        padding: 8px 6px;
    }

    .slot-scroll,
    .booking-scroll,
    .request-scroll {
        max-height: 350px;
    }
}

/* === UTILITY CLASSES === */
.text-center {
    text-align: center;
}

.mt-10 { margin-top: 10px; }
.mt-20 { margin-top: 20px; }
.mt-30 { margin-top: 30px; }

.mb-10 { margin-bottom: 10px; }
.mb-20 { margin-bottom: 20px; }
.mb-30 { margin-bottom: 30px; }

.p-error {
    color: var(--red-accent);
    font-weight: 600;
    margin: 10px 0;
}

.p-success {
    color: var(--success-green);
    font-weight: 600;
    margin: 10px 0;
}

/* === ANIMATIONS === */
@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

.loading {
    animation: pulse 1.5s ease-in-out infinite;
}

/* === PRINT STYLES === */
@media print {
    body {
        background: var(--white);
    }

    .logout-btn,
    .btn,
    button,
    .action-buttons,
    .filter-controls,
    .filter-container {
        display: none;
    }

    .card {
        box-shadow: none;
        border: 1px solid var(--gray-dark);
    }
}

/* === CENTER STATUS IN TABLE === */
td.status-cell {
    text-align: center;
    vertical-align: middle;
}

.alert-success,
.alert-error,
.alert-reject,
.success-msg {
    width: 100%;
    text-align: center;
}