/* ===== Reset & Base ===== */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

:root {
    --clearstream-teal: #00a3ad;
    --clearstream-dark: #006b70;
    --primary: #00a3ad;
    --primary-light: #00bfc9;
    --primary-dark: #006b70;
    --danger: #c62828;
    --danger-light: #ef5350;
    --white: #ffffff;
    --gray-50: #fafafa;
    --gray-100: #f5f5f5;
    --gray-200: #eeeeee;
    --gray-300: #e0e0e0;
    --gray-400: #bdbdbd;
    --gray-600: #757575;
    --gray-800: #424242;
    --gray-900: #212121;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.06);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.07), 0 2px 4px rgba(0,0,0,0.06);
    --shadow-lg: 0 10px 25px rgba(0,0,0,0.12);
    --radius: 8px;
    --radius-sm: 6px;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    background: var(--gray-100);
    color: var(--gray-900);
    min-height: 100vh;
    padding-bottom: 80px;
}

/* ===== Header ===== */
.app-header {
    background: var(--clearstream-teal);
    color: var(--white);
    padding: 18px 20px;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow-md);
}

.header-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    flex-direction: row-reverse;
    gap: 16px;
}

.header-logo {
    height: 66px;
    border-radius: 4px;
}

.header-title {
    flex: 1;
    text-align: left;
}

.header-title h1 {
    font-size: 1.95rem;
    font-weight: 700;
    letter-spacing: -0.3px;
}

.tagline {
    font-size: 1.2rem;
    opacity: 0.9;
    margin-top: 4px;
}

/* ===== Page Navigation ===== */
.page-nav {
    max-width: 1200px;
    margin: 12px auto 0;
    display: flex;
    gap: 4px;
}

.nav-link {
    color: rgba(255,255,255,0.8);
    text-decoration: none;
    padding: 8px 18px;
    border-radius: 6px 6px 0 0;
    font-size: 0.9rem;
    font-weight: 500;
    transition: background 0.2s, color 0.2s;
}

.nav-link:hover {
    background: rgba(255,255,255,0.15);
    color: var(--white);
}

.nav-link.active {
    background: var(--gray-100);
    color: var(--gray-900);
}

/* ===== Mission Banner ===== */
.mission-banner {
    background: var(--white);
    border-bottom: 1px solid var(--gray-200);
    padding: 14px 20px;
}

.mission-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    gap: 20px;
}

.mission-recycle {
    flex-shrink: 0;
}

.recycle-img {
    width: 60px;
    height: 60px;
    object-fit: contain;
    border-radius: 50%;
}

.mission-text {
    flex: 1;
    font-size: 0.96rem;
    color: var(--gray-600);
    line-height: 1.4;
}

.mission-charities {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-shrink: 0;
}

.charity-logo {
    height: 60px;
    width: auto;
    object-fit: contain;
    border-radius: var(--radius-sm);
}

/* ===== User Banner ===== */
.user-banner {
    background: var(--gray-50);
    border-bottom: 1px solid var(--gray-200);
    padding: 8px 20px;
    position: sticky;
    top: 68px;
    z-index: 99;
}

.user-info {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    font-size: 0.82rem;
    color: var(--gray-600);
}

.btn-set-name {
    background: var(--primary);
    color: var(--white);
    border: none;
    padding: 5px 12px;
    border-radius: 16px;
    font-size: 0.75rem;
    cursor: pointer;
    white-space: nowrap;
    transition: background 0.2s;
}

.btn-set-name:hover {
    background: var(--primary-dark);
}

/* ===== Items Grid (eBay/Amazon style) ===== */
.items-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 16px;
}

.items-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 12px;
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 40px 20px;
    color: var(--gray-600);
    display: none;
}

.empty-state.visible {
    display: block;
}

.empty-graphic {
    width: 180px;
    margin-bottom: 16px;
    border-radius: var(--radius);
}

.empty-state h2 {
    font-size: 1.1rem;
    margin-bottom: 6px;
    color: var(--gray-800);
}

.empty-state p {
    font-size: 0.9rem;
}

/* ===== Item Card (Compact - ecommerce style) ===== */
.item-card {
    background: var(--white);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: box-shadow 0.2s, transform 0.2s;
    display: flex;
    flex-direction: column;
    cursor: pointer;
}

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

.item-card.claimed {
    opacity: 0.7;
}

.item-card-image {
    width: 100%;
    height: auto;
    max-height: 140px;
    object-fit: contain;
    display: block;
    background: var(--gray-200);
}

.item-card-body {
    padding: 8px 10px 10px;
    display: flex;
    flex-direction: column;
    flex: 1;
}

.item-card-title {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: 4px;
    line-height: 1.3;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.item-card-description {
    font-size: 0.75rem;
    color: var(--gray-600);
    line-height: 1.3;
    margin-bottom: 6px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    flex: 1;
}

.item-card-price {
    font-size: 1rem;
    font-weight: 700;
    color: var(--primary-dark);
    margin-bottom: 4px;
}

.item-card-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.7rem;
    color: var(--gray-400);
    margin-bottom: 5px;
}

.item-card-category {
    background: var(--gray-100);
    padding: 2px 6px;
    border-radius: 10px;
    text-transform: capitalize;
    font-size: 0.65rem;
}

.item-card-lister {
    font-size: 0.7rem;
    color: var(--gray-600);
    margin-bottom: 5px;
}

.item-card-footer {
    margin-top: auto;
}

/* Claim Buttons */
.btn-claim {
    width: 100%;
    background: var(--primary);
    color: var(--white);
    border: none;
    padding: 7px 12px;
    border-radius: var(--radius-sm);
    font-size: 0.78rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-claim:hover {
    background: var(--primary-dark);
}

.btn-claim.claimed {
    background: var(--danger);
    cursor: not-allowed;
    pointer-events: none;
    font-size: 0.72rem;
}

/* ===== Item Detail Modal ===== */
.modal-detail {
    max-width: 600px;
    max-height: 85vh;
    overflow-y: auto;
}

.detail-body {
    padding: 0 !important;
}

.detail-image-wrap {
    width: 100%;
    max-height: 320px;
    overflow: hidden;
    background: var(--gray-200);
}

.detail-image {
    width: 100%;
    height: auto;
    max-height: 320px;
    object-fit: contain;
    display: block;
}

.detail-info {
    padding: 18px 20px 20px;
}

.detail-price {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--primary-dark);
    margin-bottom: 6px;
}

.detail-category {
    display: inline-block;
    background: var(--gray-100);
    padding: 3px 10px;
    border-radius: 12px;
    font-size: 0.75rem;
    text-transform: capitalize;
    color: var(--gray-600);
    margin-bottom: 12px;
}

.detail-description {
    font-size: 0.9rem;
    color: var(--gray-800);
    line-height: 1.6;
    margin-bottom: 14px;
    white-space: pre-wrap;
    word-wrap: break-word;
}

.detail-meta {
    display: flex;
    justify-content: space-between;
    font-size: 0.78rem;
    color: var(--gray-400);
    margin-bottom: 12px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--gray-200);
}

.detail-claimed-info {
    font-size: 0.82rem;
    color: var(--danger);
    margin-bottom: 12px;
    font-weight: 500;
}

.detail-actions {
    margin-top: 4px;
}

.detail-actions .btn-claim {
    width: 100%;
    padding: 10px;
    font-size: 0.9rem;
}

/* ===== FAB (Floating Action Button) ===== */
.fab {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background: var(--primary);
    color: var(--white);
    border: none;
    border-radius: 50px;
    padding: 12px 20px;
    font-size: 0.9rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 6px;
    cursor: pointer;
    box-shadow: var(--shadow-lg);
    transition: all 0.3s;
    z-index: 90;
}

.fab:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 14px 30px rgba(0,0,0,0.2);
}

.fab-icon {
    font-size: 1.3rem;
    line-height: 1;
}

/* ===== Modal ===== */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: 20px;
    overflow-y: auto;
}

.modal-overlay.active {
    display: flex;
}

.modal {
    background: var(--white);
    border-radius: var(--radius);
    width: 100%;
    max-width: 420px;
    box-shadow: var(--shadow-lg);
    animation: slideUp 0.3s ease;
}

.modal-large {
    max-width: 480px;
}

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

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 20px;
    border-bottom: 1px solid var(--gray-200);
}

.modal-header h2 {
    font-size: 1.05rem;
    font-weight: 600;
}

.modal-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--gray-600);
    cursor: pointer;
    line-height: 1;
    padding: 4px;
}

.modal-close:hover {
    color: var(--gray-900);
}

.modal-body {
    padding: 18px 20px;
}

.modal-footer {
    padding: 12px 20px;
    border-top: 1px solid var(--gray-200);
    display: flex;
    justify-content: flex-end;
    gap: 10px;
}

/* ===== Form Elements ===== */
.form-group {
    margin-bottom: 14px;
}

.form-group label {
    display: block;
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--gray-800);
    margin-bottom: 5px;
}

.form-group input[type="text"],
.form-group input[type="number"],
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 9px 12px;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    font-family: inherit;
    transition: border-color 0.2s;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(0, 163, 173, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 60px;
}

/* Image Upload */
.image-upload {
    border: 2px dashed var(--gray-300);
    border-radius: var(--radius-sm);
    padding: 16px;
    text-align: center;
    cursor: pointer;
    transition: border-color 0.2s, background 0.2s;
}

.image-upload:hover {
    border-color: var(--primary);
    background: var(--gray-50);
}

.image-upload.drag-over {
    border-color: var(--primary);
    background: rgba(0, 163, 173, 0.08);
    border-style: solid;
}

.upload-placeholder {
    color: var(--gray-600);
}

.upload-icon {
    font-size: 1.8rem;
    display: block;
    margin-bottom: 6px;
}

.upload-placeholder p {
    font-size: 0.8rem;
}

.image-url-section {
    margin-top: 8px;
}

.image-url-divider {
    text-align: center;
    color: var(--gray-500);
    font-size: 0.75rem;
    margin: 6px 0;
}

.image-url-input {
    width: 100%;
    padding: 8px 10px;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    box-sizing: border-box;
}

.image-preview {
    max-width: 100%;
    max-height: 160px;
    border-radius: var(--radius-sm);
    display: none;
}

.image-preview.visible {
    display: block;
}

/* Claim Note */
.claim-note {
    margin-top: 10px;
    font-size: 0.82rem;
    color: var(--gray-600);
    font-style: italic;
}

/* Buttons */
.btn {
    border: none;
    padding: 9px 18px;
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}

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

.btn-primary:hover {
    background: var(--primary-dark);
}

.btn-secondary {
    background: var(--gray-200);
    color: var(--gray-800);
}

.btn-secondary:hover {
    background: var(--gray-300);
}

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

.btn-danger:hover {
    background: #b71c1c;
}

/* Moderator button */
.btn-mod-login {
    background: none;
    border: 1px solid var(--gray-300);
    border-radius: 50%;
    width: 28px;
    height: 28px;
    font-size: 0.75rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
    opacity: 0.5;
}

.btn-mod-login:hover {
    opacity: 1;
    border-color: var(--primary);
}

.btn-mod-login.mod-active {
    opacity: 1;
    background: var(--primary);
    border-color: var(--primary);
}

/* Mod badge on user banner */
.mod-badge {
    background: #ff9800;
    color: var(--white);
    font-size: 0.65rem;
    font-weight: 700;
    padding: 2px 8px;
    border-radius: 10px;
    margin-left: 8px;
    text-transform: uppercase;
}

/* Mod actions in detail modal */
.detail-mod-actions {
    margin-top: 12px;
    padding-top: 12px;
    border-top: 1px dashed var(--gray-300);
    display: flex;
    gap: 8px;
}

.btn-mod-edit, .btn-mod-delete {
    flex: 1;
    border: none;
    padding: 8px 12px;
    border-radius: var(--radius-sm);
    font-size: 0.78rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-mod-edit {
    background: #ff9800;
    color: var(--white);
}

.btn-mod-edit:hover {
    background: #f57c00;
}

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

.btn-mod-delete:hover {
    background: #b71c1c;
}

/* Edit modal footer with delete on left */
.modal-footer-spread {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
    .mission-content {
        flex-wrap: wrap;
        justify-content: center;
        text-align: center;
        gap: 12px;
    }

    .mission-charities {
        order: 3;
        width: 100%;
        justify-content: center;
    }

    .items-grid {
        grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
        gap: 10px;
    }
}

@media (max-width: 480px) {
    .header-content {
        gap: 10px;
    }

    .header-logo {
        height: 36px;
    }

    .header-title h1 {
        font-size: 1.1rem;
    }

    .items-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 8px;
    }

    .fab-text {
        display: none;
    }

    .fab-icon {
        font-size: 1.5rem;
    }

    .fab {
        padding: 14px 16px;
        border-radius: 50%;
    }

    .modal {
        margin: 8px;
        max-height: 90vh;
        overflow-y: auto;
    }

    .charity-logo {
        height: 36px;
    }
}

@media (min-width: 1024px) {
    .items-grid {
        grid-template-columns: repeat(5, 1fr);
    }
}

/* ===== Utility ===== */
.hidden {
    display: none !important;
}

/* Toast / notification */
.toast {
    position: fixed;
    bottom: 80px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--gray-900);
    color: var(--white);
    padding: 10px 20px;
    border-radius: 24px;
    font-size: 0.82rem;
    z-index: 2000;
    animation: fadeInUp 0.3s ease, fadeOut 0.3s ease 2.7s forwards;
    box-shadow: var(--shadow-lg);
    white-space: nowrap;
}

@keyframes fadeInUp {
    from { opacity: 0; transform: translateX(-50%) translateY(10px); }
    to { opacity: 1; transform: translateX(-50%) translateY(0); }
}

@keyframes fadeOut {
    to { opacity: 0; transform: translateX(-50%) translateY(10px); }
}

/* ===== Footer Disclaimer ===== */
.site-footer {
    text-align: center;
    padding: 32px 20px 24px;
    margin-top: 40px;
    border-top: 1px solid var(--gray-300);
    background: var(--gray-50);
}

.site-footer .disclaimer {
    font-size: 0.75rem;
    color: var(--gray-600);
    max-width: 700px;
    margin: 0 auto 8px;
    line-height: 1.5;
}

.site-footer .footer-links {
    font-size: 0.75rem;
    margin-top: 6px;
}

.site-footer .footer-links a {
    color: var(--primary);
    text-decoration: none;
}

.site-footer .footer-links a:hover {
    text-decoration: underline;
}

/* ===== Donation Modal ===== */
.donation-body {
    text-align: center;
}

.donation-body > p:first-child {
    font-size: 1rem;
    margin-bottom: 16px;
    color: var(--gray-800);
}

.donation-link {
    display: inline-block;
    color: var(--primary);
    font-weight: 600;
    font-size: 0.95rem;
    margin-bottom: 16px;
    text-decoration: none;
}

.donation-link:hover {
    text-decoration: underline;
}

.donation-qr {
    display: block;
    margin: 0 auto 16px;
    max-width: 180px;
    border-radius: var(--radius);
}

.donation-disclaimer {
    font-size: 0.72rem;
    color: var(--gray-600);
    line-height: 1.5;
    max-width: 400px;
    margin: 0 auto;
}

/* ===== Help Button ===== */
.help-fab {
    position: fixed;
    bottom: 30px;
    left: 30px;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--primary);
    color: var(--white);
    border: none;
    font-size: 1.4rem;
    font-weight: 700;
    cursor: pointer;
    box-shadow: var(--shadow-lg);
    z-index: 999;
    transition: background 0.2s;
}

.help-fab:hover {
    background: var(--primary-dark);
}

/* ===== Mod Messages Button ===== */
.btn-mod-messages {
    background: var(--primary);
    color: var(--white);
    border: none;
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 0.8rem;
    cursor: pointer;
    margin-left: 8px;
}

.btn-mod-messages:hover {
    background: var(--primary-dark);
}

/* ===== Messages List ===== */
.messages-list {
    max-height: 400px;
    overflow-y: auto;
}

.messages-loading,
.messages-empty {
    text-align: center;
    color: var(--gray-600);
    padding: 24px 0;
}

.message-card {
    border: 1px solid var(--gray-300);
    border-radius: var(--radius-sm);
    padding: 12px 16px;
    margin-bottom: 10px;
}

.message-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 6px;
}

.message-date {
    font-size: 0.75rem;
    color: var(--gray-600);
}

.message-text {
    font-size: 0.88rem;
    color: var(--gray-800);
    line-height: 1.5;
    white-space: pre-wrap;
}

.audit-by {
    font-size: 0.75rem;
    color: var(--gray-600);
    font-style: italic;
}

/* ===== Terms & Conditions Page ===== */
.terms-page {
    max-width: 760px;
    margin: 0 auto;
    padding: 32px 20px;
}

.terms-page .back-link {
    display: inline-block;
    color: var(--primary);
    text-decoration: none;
    font-size: 0.9rem;
    margin-bottom: 16px;
}

.terms-page .back-link:hover {
    text-decoration: underline;
}

.terms-page h2 {
    font-size: 1.5rem;
    color: var(--gray-900);
    margin-bottom: 24px;
}

.terms-page h3 {
    font-size: 1rem;
    color: var(--gray-800);
    margin-top: 24px;
    margin-bottom: 8px;
}

.terms-page p {
    font-size: 0.88rem;
    color: var(--gray-800);
    line-height: 1.6;
    margin-bottom: 8px;
}

.terms-page ul {
    margin: 8px 0 8px 24px;
    font-size: 0.88rem;
    color: var(--gray-800);
    line-height: 1.6;
}