/* ==========================================================================
   UVM Sublets — Modern Design System
   ========================================================================== */

/* ---------- 1. Variables & Reset ---------- */
:root {
    /* UVM Brand Colors */
    --green: #154734;
    --gold: #FFD100;
    --slate: #00313C;
    --sky: #489FDF;
    --orange: #DC582A;
    --fog: #F7F7F7;
    --white: #FFFFFF;

    /* Functional Colors */
    --text: #00313C;
    --text-secondary: #4a5e63;
    --text-muted: #7a8e93;
    --border: #dce1e3;
    --border-light: #eef1f2;
    --danger: #DC582A;
    --success: #1a6b4a;

    /* Shadows */
    --shadow-sm: 0 1px 3px rgba(0, 49, 60, 0.06);
    --shadow: 0 2px 8px rgba(0, 49, 60, 0.08);
    --shadow-md: 0 4px 16px rgba(0, 49, 60, 0.10);
    --shadow-lg: 0 8px 32px rgba(0, 49, 60, 0.14);

    /* Spacing & Sizing */
    --radius: 12px;
    --radius-sm: 8px;
    --radius-xs: 6px;
    --radius-full: 9999px;
    --transition: 0.2s ease;
    --max-width: 1280px;
    --nav-height: 64px;
}

*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    color: var(--text);
    background: var(--fog);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

img {
    max-width: 100%;
    display: block;
}

/* Clamp HDR images to SDR to prevent washout in Safari */
.card-image img,
.modal-gallery img,
.image-preview img,
.map-popup img,
.upload-zone img {
    filter: brightness(1);
}

a {
    color: var(--green);
    text-decoration: none;
    transition: color var(--transition);
}

a:hover {
    color: var(--sky);
}

button, input, select, textarea {
    font-family: inherit;
    font-size: inherit;
}

/* ---------- 2. Typography ---------- */
h1 { font-size: 1.75rem; font-weight: 700; line-height: 1.3; }
h2 { font-size: 1.375rem; font-weight: 600; line-height: 1.35; }
h3 { font-size: 1.125rem; font-weight: 600; line-height: 1.4; }

/* ---------- 3. Navigation ---------- */
.nav {
    background: var(--green);
    color: var(--white);
    position: sticky;
    top: 0;
    z-index: 1000;
    height: var(--nav-height);
    box-shadow: var(--shadow-md);
}

.nav-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 1.5rem;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--white);
    font-weight: 700;
    font-size: 1.25rem;
}

.nav-brand:hover {
    color: var(--gold);
}

.nav-logo {
    width: 36px;
    height: 36px;
    background: var(--gold);
    color: var(--green);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
}

.nav-title {
    letter-spacing: -0.02em;
}

.nav-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--white);
    font-size: 1.25rem;
    cursor: pointer;
    padding: 0.5rem;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.nav-link {
    color: rgba(255, 255, 255, 0.85);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-xs);
    font-size: 0.9rem;
    font-weight: 500;
    transition: all var(--transition);
}

.nav-link:hover {
    color: var(--white);
    background: rgba(255, 255, 255, 0.12);
}

.nav-link.active {
    color: var(--gold);
    background: rgba(255, 209, 0, 0.1);
}

.nav-user {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.85rem;
    padding: 0.4rem 0.75rem;
    margin-left: 0.5rem;
    border-left: 1px solid rgba(255, 255, 255, 0.15);
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

/* ---------- 3b. Announcement Banner ---------- */
.announcement-banner {
    width: 100%;
    padding: 0.65rem 1.5rem;
    font-size: 0.9rem;
    font-weight: 500;
    z-index: 999;
}

.announcement-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}

.announcement-text {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.announcement-text i {
    flex-shrink: 0;
}

.announcement-dismiss {
    background: none;
    border: none;
    font-size: 1.25rem;
    cursor: pointer;
    opacity: 0.6;
    transition: opacity var(--transition);
    line-height: 1;
    flex-shrink: 0;
    padding: 0 0.25rem;
}

.announcement-dismiss:hover {
    opacity: 1;
}

.announcement-info {
    background: #e3f2fd;
    color: #1565c0;
    border-bottom: 1px solid #bbdefb;
}

.announcement-info .announcement-dismiss {
    color: #1565c0;
}

.announcement-warning {
    background: #fff8e1;
    color: #7a6100;
    border-bottom: 1px solid #ffecb3;
}

.announcement-warning .announcement-dismiss {
    color: #7a6100;
}

.announcement-success {
    background: #e8f5e9;
    color: #1a6b4a;
    border-bottom: 1px solid #c8e6c9;
}

.announcement-success .announcement-dismiss {
    color: #1a6b4a;
}

/* ---------- 4. Layout ---------- */
.main {
    flex: 1;
    max-width: var(--max-width);
    width: 100%;
    margin: 0 auto;
    padding: 1.5rem;
}

.page-header {
    margin-bottom: 1.5rem;
}

.page-header h1 {
    color: var(--green);
}

.page-header p {
    color: var(--text-secondary);
    margin-top: 0.25rem;
}

/* ---------- 5. Filters ---------- */
.filters {
    background: var(--white);
    border-radius: var(--radius);
    padding: 1.25rem 1.5rem;
    margin-bottom: 1.5rem;
    box-shadow: var(--shadow);
    border: 1px solid var(--border-light);
}

.filters-row {
    display: flex;
    align-items: flex-end;
    gap: 2rem;
    flex-wrap: wrap;
}

.filter-group {
    flex: 1;
    min-width: 200px;
}

.filter-group label {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.75rem;
}

.filter-group .slider-value {
    font-size: 0.8rem;
    color: var(--green);
    font-weight: 700;
    text-transform: none;
    letter-spacing: 0;
}

.filter-group select {
    width: 100%;
    padding: 0.6rem 2rem 0.6rem 0.875rem;
    border: 1.5px solid var(--border);
    border-radius: var(--radius-xs);
    background: var(--white);
    color: var(--text);
    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='%234a5e63' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.75rem center;
    font-size: 0.9rem;
    transition: border-color var(--transition), box-shadow var(--transition);
}

.filter-group select:focus {
    outline: none;
    border-color: var(--green);
    box-shadow: 0 0 0 3px rgba(21, 71, 52, 0.1);
}

.filter-actions {
    display: flex;
    gap: 0.5rem;
    align-items: flex-end;
    flex-shrink: 0;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    padding: 0.55rem 1.25rem;
    border-radius: var(--radius-xs);
    font-weight: 600;
    font-size: 0.875rem;
    cursor: pointer;
    border: none;
    transition: all var(--transition);
    text-decoration: none;
    line-height: 1.4;
    white-space: nowrap;
}

.btn-primary {
    background: var(--green);
    color: var(--white);
}

.btn-primary:hover {
    background: #1a5c44;
    color: var(--white);
}

.btn-secondary {
    background: var(--fog);
    color: var(--text-secondary);
    border: 1px solid var(--border);
}

.btn-secondary:hover {
    background: var(--white);
    border-color: var(--text-secondary);
    color: var(--text);
}

.btn-gold {
    background: var(--gold);
    color: var(--green);
}

.btn-gold:hover {
    background: #e6bc00;
    color: var(--green);
}

.btn-danger {
    background: var(--orange);
    color: var(--white);
}

.btn-danger:hover {
    background: #c44e22;
    color: var(--white);
}

.btn-sm {
    padding: 0.35rem 0.75rem;
    font-size: 0.8rem;
}

.btn-lg {
    padding: 0.75rem 2rem;
    font-size: 1rem;
}

/* noUiSlider custom styling */
.noUi-target {
    background: #e8ecee;
    border: none;
    border-radius: var(--radius-full);
    box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.06);
    height: 8px;
    margin: 0 8px;
}

.noUi-connect {
    background: linear-gradient(135deg, var(--green), #1a6b4a);
    border-radius: var(--radius-full);
}

.noUi-handle {
    width: 22px !important;
    height: 22px !important;
    border-radius: 50% !important;
    border: 2.5px solid var(--green) !important;
    background: var(--white) !important;
    box-shadow: 0 1px 4px rgba(0, 49, 60, 0.15), 0 0 0 0 rgba(21, 71, 52, 0) !important;
    top: -8px !important;
    right: -11px !important;
    cursor: grab;
    transition: box-shadow 0.15s ease, transform 0.15s ease;
}

.noUi-handle::before,
.noUi-handle::after {
    display: none;
}

.noUi-handle:hover {
    box-shadow: 0 2px 6px rgba(0, 49, 60, 0.2), 0 0 0 4px rgba(21, 71, 52, 0.08) !important;
    transform: scale(1.08);
}

.noUi-handle:active,
.noUi-handle.noUi-active {
    cursor: grabbing;
    box-shadow: 0 1px 4px rgba(0, 49, 60, 0.2), 0 0 0 6px rgba(21, 71, 52, 0.12) !important;
    transform: scale(1.12);
}

.noUi-horizontal .noUi-tooltip {
    display: none;
}

/* Sort Bar */
.sort-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1rem;
    padding: 0 0.25rem;
}

.sort-bar-count {
    font-size: 0.85rem;
    color: var(--text-muted);
    font-weight: 500;
}

.sort-bar-controls {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.sort-bar-controls label {
    font-size: 0.8rem;
    color: var(--text-muted);
    font-weight: 500;
    white-space: nowrap;
}

.sort-bar-controls select {
    padding: 0.35rem 2rem 0.35rem 0.65rem;
    border: 1px solid var(--border);
    border-radius: var(--radius-xs);
    background: var(--white);
    color: var(--text);
    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='%234a5e63' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.5rem center;
    font-size: 0.85rem;
    font-weight: 500;
    transition: border-color var(--transition), box-shadow var(--transition);
}

.sort-bar-controls select:focus {
    outline: none;
    border-color: var(--green);
    box-shadow: 0 0 0 3px rgba(21, 71, 52, 0.1);
}

/* ---------- 6. Listing Cards ---------- */
.listings-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.25rem;
}

.listing-card {
    background: var(--white);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-light);
    cursor: pointer;
    transition: all var(--transition);
}

.listing-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.card-image {
    position: relative;
    width: 100%;
    padding-top: 66.67%; /* 3:2 aspect ratio */
    overflow: hidden;
}

.card-image img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.listing-card:hover .card-image img {
    transform: scale(1.03);
}

.card-badge {
    position: absolute;
    bottom: 0.75rem;
    left: 0.75rem;
    background: var(--green);
    color: var(--white);
    padding: 0.25rem 0.6rem;
    border-radius: var(--radius-xs);
    font-size: 0.85rem;
    font-weight: 700;
    box-shadow: var(--shadow-sm);
}

.card-semester {
    position: absolute;
    top: 0.75rem;
    right: 0.75rem;
    background: var(--gold);
    color: var(--green);
    padding: 0.2rem 0.5rem;
    border-radius: var(--radius-xs);
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.02em;
}

.card-info {
    padding: 0.875rem 1rem;
}

.card-address {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text);
    margin-bottom: 0.25rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.card-meta {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.listings-empty {
    grid-column: 1 / -1;
    text-align: center;
    padding: 4rem 2rem;
    color: var(--text-muted);
}

.listings-empty i {
    font-size: 3rem;
    margin-bottom: 1rem;
    color: var(--border);
}

.listings-empty p {
    font-size: 1.1rem;
}

/* ---------- 7. Modal ---------- */
.modal-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 49, 60, 0.6);
    backdrop-filter: blur(4px);
    z-index: 2000;
    overflow-y: auto;
    padding: 2rem 1rem;
}

.modal-overlay.open {
    display: flex;
    align-items: flex-start;
    justify-content: center;
}

.modal-container {
    background: var(--white);
    border-radius: var(--radius);
    width: 100%;
    max-width: 720px;
    box-shadow: var(--shadow-lg);
    position: relative;
    margin: auto;
    animation: modalIn 0.25s ease;
    display: flex;
    flex-direction: column;
}

.modal-container.contact-active {
    height: 85vh;
}

@keyframes modalIn {
    from { opacity: 0; transform: translateY(16px) scale(0.98); }
    to { opacity: 1; transform: translateY(0) scale(1); }
}

.modal-close {
    position: absolute;
    top: 0.75rem;
    right: 0.75rem;
    width: 36px;
    height: 36px;
    background: rgba(0, 0, 0, 0.5);
    color: var(--white);
    border: none;
    border-radius: 50%;
    font-size: 1.25rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10;
    transition: background var(--transition);
    line-height: 1;
}

.modal-close:hover {
    background: rgba(0, 0, 0, 0.7);
}

/* Modal Gallery */
.modal-gallery {
    position: relative;
    width: 100%;
    padding-top: 60%;
    background: var(--slate);
    border-radius: var(--radius) var(--radius) 0 0;
    overflow: hidden;
    flex-shrink: 0;
    transition: padding-top 0.3s ease;
}

.modal-container.contact-active .modal-gallery {
    padding-top: 25%;
}

.modal-gallery img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.gallery-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.9);
    color: var(--text);
    border: none;
    border-radius: 50%;
    font-size: 1rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition);
    box-shadow: var(--shadow);
}

.gallery-nav:hover {
    background: var(--white);
    box-shadow: var(--shadow-md);
}

.gallery-nav.prev { left: 0.75rem; }
.gallery-nav.next { right: 0.75rem; }

.gallery-dots {
    position: absolute;
    bottom: 0.75rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 0.4rem;
}

.gallery-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.5);
    border: none;
    cursor: pointer;
    padding: 0;
    transition: all var(--transition);
}

.gallery-dot.active {
    background: var(--white);
    transform: scale(1.2);
}

/* Modal Details */
.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 1rem;
    margin-bottom: 1rem;
}

.modal-price {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--green);
}

.modal-actions {
    display: flex;
    gap: 0.5rem;
    flex-shrink: 0;
}

.modal-body {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.modal-field {
    display: flex;
    align-items: flex-start;
    gap: 0.6rem;
}

.modal-field i {
    color: var(--text-muted);
    width: 1.1rem;
    text-align: center;
    margin-top: 0.2rem;
    flex-shrink: 0;
}

.modal-field span {
    color: var(--text);
    font-size: 0.95rem;
}

.modal-description {
    margin-top: 0.5rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border-light);
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.7;
    white-space: pre-wrap;
}

.modal-poster {
    margin-top: 0.75rem;
    padding-top: 0.75rem;
    border-top: 1px solid var(--border-light);
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* Contact Slide (inside modal details) */
.modal-details {
    position: relative;
    overflow: hidden;
}

.modal-container.contact-active .modal-details {
    flex: 1;
    min-height: 0;
}

.modal-details-inner {
    padding: 1.5rem;
    transition: transform 0.3s ease;
}

.modal-details.contact-open .modal-details-inner {
    transform: translateX(-100%);
}

.modal-contact-panel {
    position: absolute;
    top: 0;
    left: 100%;
    width: 100%;
    height: 100%;
    padding: 1.5rem;
    overflow-y: auto;
    transition: transform 0.3s ease;
    box-sizing: border-box;
}

.modal-details.contact-open .modal-contact-panel {
    transform: translateX(-100%);
}

.contact-back-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 0.85rem;
    cursor: pointer;
    padding: 0;
    margin-bottom: 1rem;
    transition: color var(--transition);
}

.contact-back-btn:hover {
    color: var(--text);
}

.contact-panel-title {
    color: var(--green);
    margin: 0 0 1.25rem 0;
    font-size: 1.1rem;
}

.contact-field {
    margin-bottom: 1rem;
}

.contact-field:last-child {
    margin-bottom: 0;
}

.contact-field label {
    display: block;
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.3rem;
}

.contact-value-row {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.contact-value {
    font-size: 0.95rem;
    color: var(--text);
    font-weight: 500;
}

.contact-draft {
    background: var(--fog);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-xs);
    padding: 0.75rem;
    font-size: 0.85rem;
    color: var(--text-secondary);
    white-space: pre-wrap;
    line-height: 1.5;
    max-height: 200px;
    overflow-y: auto;
}

.contact-actions {
    display: flex;
    gap: 0.5rem;
    margin-top: 1.25rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border-light);
}

.contact-actions .btn {
    flex: 1;
    justify-content: center;
}

.contact-copy.copied {
    color: var(--success) !important;
    border-color: var(--success) !important;
}

/* ---------- 8. Post Form ---------- */
.post-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    align-items: start;
}

.post-form-section {
    background: var(--white);
    border-radius: var(--radius);
    padding: 2rem;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-light);
}

.post-form-section h1 {
    color: var(--green);
    margin-bottom: 1.5rem;
}

.form-group {
    margin-bottom: 1.25rem;
}

.form-group label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 0.4rem;
}

.form-group input[type="text"],
.form-group input[type="number"],
.form-group input[type="email"],
.form-group input[type="tel"],
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.65rem 0.875rem;
    border: 1px solid var(--border);
    border-radius: var(--radius-xs);
    background: var(--white);
    color: var(--text);
    transition: border-color var(--transition), box-shadow var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--green);
    box-shadow: 0 0 0 3px rgba(21, 71, 52, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

.form-group select {
    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='%234a5e63' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.75rem center;
    cursor: pointer;
}

.input-with-prefix {
    display: flex;
    align-items: stretch;
}

.input-prefix {
    display: flex;
    align-items: center;
    padding: 0 0.75rem;
    background: var(--fog);
    border: 1px solid var(--border);
    border-right: none;
    border-radius: var(--radius-xs) 0 0 var(--radius-xs);
    color: var(--text-secondary);
    font-weight: 600;
}

.input-with-prefix input {
    border-radius: 0 var(--radius-xs) var(--radius-xs) 0 !important;
}

/* Address Autocomplete */
.address-wrapper {
    position: relative;
}

.autocomplete-results {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--white);
    border: 1px solid var(--border);
    border-top: none;
    border-radius: 0 0 var(--radius-xs) var(--radius-xs);
    box-shadow: var(--shadow-md);
    z-index: 100;
    max-height: 240px;
    overflow-y: auto;
    display: none;
}

.autocomplete-results.open {
    display: block;
}

.autocomplete-item {
    padding: 0.6rem 0.875rem;
    cursor: pointer;
    font-size: 0.9rem;
    border-bottom: 1px solid var(--border-light);
    transition: background var(--transition);
}

.autocomplete-item:last-child {
    border-bottom: none;
}

.autocomplete-item:hover,
.autocomplete-item.highlighted {
    background: var(--fog);
}

.autocomplete-item i {
    color: var(--text-muted);
    margin-right: 0.5rem;
}

/* Upload Zone */
.upload-zone {
    border: 2px dashed var(--border);
    border-radius: var(--radius);
    padding: 2rem;
    text-align: center;
    transition: all var(--transition);
    cursor: pointer;
    background: var(--fog);
    position: relative;
}

.upload-zone:hover,
.upload-zone.dragover {
    border-color: var(--green);
    background: rgba(21, 71, 52, 0.03);
}

.upload-zone i {
    font-size: 2rem;
    color: var(--text-muted);
    margin-bottom: 0.5rem;
}

.upload-zone p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.upload-zone p strong {
    color: var(--green);
}

.upload-zone input[type="file"] {
    position: absolute;
    inset: 0;
    opacity: 0;
    cursor: pointer;
}

/* Image Previews */
.image-previews {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
    margin-top: 1rem;
}

.image-preview {
    position: relative;
    width: 100px;
    height: 100px;
    border-radius: var(--radius-sm);
    overflow: hidden;
    border: 2px solid var(--border-light);
}

.image-preview.is-thumbnail {
    border-color: var(--gold);
}

.image-preview img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.image-preview .remove-image {
    position: absolute;
    top: 4px;
    right: 4px;
    width: 22px;
    height: 22px;
    background: rgba(220, 88, 42, 0.9);
    color: var(--white);
    border: none;
    border-radius: 50%;
    font-size: 0.7rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity var(--transition);
}

.image-preview:hover .remove-image {
    opacity: 1;
}

.image-preview .thumbnail-badge {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--gold);
    color: var(--green);
    font-size: 0.6rem;
    font-weight: 700;
    text-align: center;
    padding: 2px;
    text-transform: uppercase;
}

/* Map Preview */
.post-map-section {
    position: sticky;
    top: calc(var(--nav-height) + 1.5rem);
}

.post-map-section .map-container {
    background: var(--white);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-light);
}

.post-map-section #postMap {
    height: 400px;
    width: 100%;
}

.post-map-section .map-hint {
    padding: 0.75rem 1rem;
    font-size: 0.8rem;
    color: var(--text-muted);
    text-align: center;
    border-top: 1px solid var(--border-light);
}

/* ---------- 9. Map Page ---------- */
.map-page-layout {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

#mainMap {
    width: 100%;
    height: 500px;
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-light);
    z-index: 1;
}

.leaflet-popup-content-wrapper {
    border-radius: var(--radius-sm) !important;
    box-shadow: var(--shadow-md) !important;
}

.leaflet-popup-content {
    margin: 0.75rem !important;
    font-family: inherit !important;
}

.map-popup {
    text-align: center;
    min-width: 180px;
}

.map-popup img {
    width: 100%;
    max-width: 200px;
    border-radius: var(--radius-xs);
    cursor: pointer;
    margin: 0 auto 0.5rem;
    transition: opacity var(--transition);
}

.map-popup img:hover {
    opacity: 0.9;
}

.map-popup .popup-price {
    font-weight: 700;
    color: var(--green);
    font-size: 1rem;
}

.map-popup .popup-address {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-top: 0.25rem;
}

/* ---------- 10. Admin Dashboard ---------- */
.admin-container {
    max-width: 960px;
    margin: 0 auto;
}

.admin-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.admin-header h1 {
    color: var(--green);
}

.admin-stats {
    display: flex;
    gap: 1rem;
}

.stat-card {
    background: var(--white);
    border-radius: var(--radius-sm);
    padding: 0.75rem 1.25rem;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-light);
    text-align: center;
}

.stat-card .stat-number {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--green);
}

.stat-card .stat-label {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

/* Tabs */
.admin-tabs {
    display: flex;
    gap: 0.25rem;
    background: var(--white);
    padding: 0.35rem;
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-light);
    margin-bottom: 1.5rem;
}

.admin-tab {
    flex: 1;
    padding: 0.6rem 1rem;
    border: none;
    background: none;
    border-radius: var(--radius-xs);
    cursor: pointer;
    font-weight: 600;
    font-size: 0.875rem;
    color: var(--text-secondary);
    transition: all var(--transition);
}

.admin-tab:hover {
    background: var(--fog);
    color: var(--text);
}

.admin-tab.active {
    background: var(--green);
    color: var(--white);
}

.tab-panel {
    display: none;
}

.tab-panel.active {
    display: block;
}

/* Admin Cards */
.admin-card {
    background: var(--white);
    border-radius: var(--radius);
    padding: 1.5rem;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-light);
    margin-bottom: 1rem;
}

.admin-card h3 {
    color: var(--green);
    margin-bottom: 1rem;
}

/* Admin Table */
.admin-table {
    width: 100%;
    border-collapse: collapse;
}

.admin-table th {
    text-align: left;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.04em;
    padding: 0.6rem 0.75rem;
    border-bottom: 2px solid var(--border-light);
}

.admin-table td {
    padding: 0.75rem;
    border-bottom: 1px solid var(--border-light);
    font-size: 0.9rem;
    vertical-align: middle;
}

.admin-table tr:last-child td {
    border-bottom: none;
}

.admin-table tr:hover td {
    background: var(--fog);
}

/* Semester list */
.semester-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--border-light);
}

.semester-item:last-child {
    border-bottom: none;
}

.semester-info {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.semester-status {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--success);
}

.semester-status.inactive {
    background: var(--border);
}

.semester-actions {
    display: flex;
    gap: 0.4rem;
}

/* Add semester form */
.add-form {
    display: flex;
    gap: 0.5rem;
    align-items: flex-end;
    padding-top: 1rem;
    border-top: 1px solid var(--border-light);
    margin-top: 0.5rem;
}

.add-form .form-group {
    margin-bottom: 0;
    flex: 1;
}

.add-form .form-group input,
.add-form .form-group select {
    padding: 0.5rem 0.65rem;
    font-size: 0.85rem;
}

/* Email composer */
.email-composer {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.recipient-selector {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.recipient-option {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 0.75rem;
    border: 1px solid var(--border-light);
    border-radius: var(--radius-xs);
    cursor: pointer;
    transition: all var(--transition);
}

.recipient-option:hover {
    background: var(--fog);
}

.recipient-option input[type="radio"],
.recipient-option input[type="checkbox"] {
    accent-color: var(--green);
}

.user-checkboxes {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    padding: 0.75rem;
    background: var(--fog);
    border-radius: var(--radius-xs);
    margin-top: 0.5rem;
}

.user-checkbox {
    display: flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.3rem 0.6rem;
    background: var(--white);
    border-radius: var(--radius-xs);
    border: 1px solid var(--border);
    font-size: 0.85rem;
    cursor: pointer;
    transition: all var(--transition);
}

.user-checkbox:hover {
    border-color: var(--green);
}

.user-checkbox input {
    accent-color: var(--green);
}

/* Admin post images grid */
.admin-images {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.admin-image {
    position: relative;
    width: 60px;
    height: 60px;
    border-radius: var(--radius-xs);
    overflow: hidden;
}

.admin-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.admin-image .delete-image-btn {
    position: absolute;
    inset: 0;
    background: rgba(220, 88, 42, 0.7);
    color: var(--white);
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity var(--transition);
    font-size: 0.8rem;
}

.admin-image:hover .delete-image-btn {
    opacity: 1;
}

/* ---------- 11. Alerts & Feedback ---------- */
.alert {
    padding: 0.85rem 1.25rem;
    border-radius: var(--radius-sm);
    margin-bottom: 1rem;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 0.6rem;
}

.alert-success {
    background: #e8f5e9;
    color: #1a6b4a;
    border: 1px solid #c8e6c9;
}

.alert-error {
    background: #fce8e3;
    color: #b5401a;
    border: 1px solid #f5c6ba;
}

.alert-info {
    background: #e3f2fd;
    color: #1565c0;
    border: 1px solid #bbdefb;
}

/* ---------- 12. Footer ---------- */
.site-footer {
    background: var(--green);
    color: rgba(255, 255, 255, 0.7);
    padding: 1.5rem;
    margin-top: auto;
}

.footer-content {
    max-width: var(--max-width);
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.85rem;
}

.footer-content a {
    color: var(--gold);
}

.footer-content a:hover {
    color: var(--white);
}

.footer-links {
    display: flex;
    gap: 1rem;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    font-size: 1.2rem;
}

.footer-links a:hover {
    color: var(--gold);
}

/* ---------- 12b. Broken Image Fallback ---------- */
.card-image img.img-broken,
.modal-gallery img.img-broken,
.map-popup img.img-broken {
    object-fit: contain;
    background: var(--fog);
    padding: 1.5rem;
}

.img-broken-placeholder {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: var(--fog);
    color: var(--text-muted);
    gap: 0.5rem;
    pointer-events: none;
}

.img-broken-placeholder i {
    font-size: 2rem;
    color: var(--border);
}

.img-broken-placeholder span {
    font-size: 0.8rem;
    font-weight: 500;
}

/* ---------- 12c. Utilities & Amenities ---------- */
.card-utilities {
    padding: 0 1rem 0.75rem;
    display: flex;
    flex-wrap: wrap;
    gap: 0.3rem;
}

.utility-tag {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    font-size: 0.7rem;
    font-weight: 600;
    padding: 0.15rem 0.45rem;
    border-radius: var(--radius-xs);
    background: var(--fog);
    color: var(--text-secondary);
    border: 1px solid var(--border-light);
    white-space: nowrap;
}

.utility-tag i {
    font-size: 0.6rem;
}

.utility-tag.tag-included {
    background: #e8f5e9;
    color: #1a6b4a;
    border-color: #c8e6c9;
}

.utility-tag.tag-tenant {
    background: #fff8e1;
    color: #7a6100;
    border-color: #ffecb3;
}

.modal-utilities {
    margin-top: 0.75rem;
    padding-top: 0.75rem;
    border-top: 1px solid var(--border-light);
}

.modal-utilities h4 {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.04em;
    margin-bottom: 0.5rem;
}

.modal-utilities-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    margin-bottom: 0.5rem;
}

.modal-utility-item {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    font-size: 0.85rem;
    padding: 0.3rem 0.65rem;
    border-radius: var(--radius-xs);
    background: var(--fog);
    border: 1px solid var(--border-light);
}

.modal-utility-item i {
    font-size: 0.75rem;
}

.modal-utility-item.paid-landlord {
    background: #e8f5e9;
    color: #1a6b4a;
    border-color: #c8e6c9;
}

.modal-utility-item.paid-tenant {
    background: #fff8e1;
    color: #7a6100;
    border-color: #ffecb3;
}

.modal-utility-cost {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-top: 0.4rem;
}

.modal-utility-cost strong {
    color: var(--text);
}

.modal-amenities-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
}

.modal-amenity-item {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    font-size: 0.85rem;
    padding: 0.3rem 0.65rem;
    border-radius: var(--radius-xs);
    background: #e8f5e9;
    color: #1a6b4a;
    border: 1px solid #c8e6c9;
}

.modal-amenity-item i {
    font-size: 0.75rem;
}

/* Utilities form section */
.utility-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.75rem;
}

.utility-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.6rem 0.75rem;
    background: var(--fog);
    border-radius: var(--radius-xs);
    border: 1px solid var(--border-light);
}

.utility-row label {
    font-size: 0.85rem !important;
    font-weight: 500 !important;
    color: var(--text) !important;
    text-transform: none !important;
    margin-bottom: 0 !important;
}

.utility-row select {
    width: auto !important;
    padding: 0.3rem 1.8rem 0.3rem 0.5rem !important;
    font-size: 0.8rem !important;
    border: 1px solid var(--border) !important;
}

.amenity-checkboxes {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.5rem;
}

.amenity-checkbox {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 0.75rem;
    background: var(--fog);
    border-radius: var(--radius-xs);
    border: 1px solid var(--border-light);
    cursor: pointer;
    transition: all var(--transition);
}

.amenity-checkbox:hover {
    border-color: var(--green);
    background: rgba(21, 71, 52, 0.03);
}

.amenity-checkbox input[type="checkbox"] {
    accent-color: var(--green);
    width: 16px;
    height: 16px;
    cursor: pointer;
}

.amenity-checkbox span {
    font-size: 0.85rem;
    color: var(--text);
}

.amenity-checkbox i {
    color: var(--text-muted);
    width: 1rem;
    text-align: center;
    font-size: 0.85rem;
}

.form-section-header {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.75rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--border-light);
}

.form-section-header h3 {
    font-size: 1rem;
    color: var(--green);
    font-weight: 600;
}

.form-section-header .badge-optional {
    font-size: 0.7rem;
    font-weight: 500;
    color: var(--text-muted);
    background: var(--fog);
    padding: 0.1rem 0.5rem;
    border-radius: var(--radius-full);
    border: 1px solid var(--border-light);
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

/* ---------- 13. Utility ---------- */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    border: 0;
}

.text-muted { color: var(--text-muted); }
.text-center { text-align: center; }
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }

/* Loading spinner */
.spinner {
    width: 20px;
    height: 20px;
    border: 2px solid var(--border);
    border-top-color: var(--green);
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
    display: inline-block;
}

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

/* ---------- 14. Responsive ---------- */
@media (max-width: 768px) {
    .nav-toggle {
        display: block;
    }

    .nav-menu {
        display: none;
        position: absolute;
        top: var(--nav-height);
        left: 0;
        right: 0;
        background: var(--green);
        flex-direction: column;
        padding: 0.5rem 1rem 1rem;
        gap: 0.15rem;
        box-shadow: var(--shadow-lg);
    }

    .nav-menu.open {
        display: flex;
    }

    .nav-link {
        padding: 0.7rem 1rem;
        width: 100%;
    }

    .nav-user {
        border-left: none;
        border-top: 1px solid rgba(255, 255, 255, 0.15);
        margin-left: 0;
        margin-top: 0.25rem;
        padding-top: 0.6rem;
    }

    .main {
        padding: 1rem;
    }

    .filters-row {
        flex-direction: column;
        gap: 1.25rem;
    }

    .filter-group {
        min-width: 100%;
    }

    .filter-actions {
        width: 100%;
        padding-top: 0.25rem;
    }

    .filter-actions .btn {
        flex: 1;
    }

    .listings-grid {
        grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
        gap: 1rem;
    }

    .post-layout {
        grid-template-columns: 1fr;
    }

    .post-map-section {
        position: static;
    }

    .modal-overlay {
        padding: 1rem 0.5rem;
    }

    .modal-container {
        max-width: 100%;
    }

    .modal-header {
        flex-direction: column;
    }

    .modal-actions {
        width: 100%;
    }

    .modal-actions .btn {
        flex: 1;
    }

    .admin-tabs {
        flex-wrap: wrap;
    }

    .admin-tab {
        flex: 1 1 45%;
    }

    .admin-stats {
        flex-wrap: wrap;
    }

    .stat-card {
        flex: 1 1 45%;
    }

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

    .amenity-checkboxes {
        grid-template-columns: 1fr;
    }

    .add-form {
        flex-direction: column;
    }

    .footer-content {
        flex-direction: column;
        gap: 0.5rem;
        text-align: center;
    }

    #mainMap {
        height: 350px;
    }
}

@media (max-width: 480px) {
    .listings-grid {
        grid-template-columns: 1fr;
    }

    .admin-tab {
        flex: 1 1 100%;
    }

    .admin-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }
}