:root {
    --bg: #f0ebe3;
    --surface: #fffdf9;
    --ink: #1c1917;
    --muted: #78716c;
    --line: #e7e0d6;
    --accent: #0f766e;
    --accent-hover: #0d9488;
    --accent-soft: #ccfbf1;
    --danger: #991b1b;
    --danger-bg: #fee2e2;
    --ok: #065f46;
    --ok-bg: #d1fae5;
    --radius: 14px;
    --shadow: 0 1px 2px rgba(28, 25, 23, .06), 0 8px 24px rgba(28, 25, 23, .06);
    --font: "Segoe UI", system-ui, -apple-system, sans-serif;
}

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

html { scroll-behavior: smooth; }

body {
    font-family: var(--font);
    background:
        radial-gradient(ellipse 80% 50% at 10% -10%, #d8f3ef 0%, transparent 55%),
        radial-gradient(ellipse 60% 40% at 100% 0%, #f5e6d3 0%, transparent 50%),
        var(--bg);
    color: var(--ink);
    line-height: 1.5;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
}

.container {
    width: min(1120px, 100%);
    margin: 0 auto;
    padding: 1rem 1rem 2.5rem;
}

/* Header */
.site-header {
    display: flex;
    flex-direction: column;
    gap: .5rem;
    margin-bottom: 1.25rem;
    padding-top: .25rem;
}

.site-header h1 {
    font-size: clamp(1.5rem, 5vw, 2rem);
    font-weight: 800;
    letter-spacing: -.02em;
    color: var(--accent);
}

.site-header p {
    color: var(--muted);
    font-size: .9rem;
}

.header-row {
    display: flex;
    flex-wrap: wrap;
    align-items: flex-start;
    justify-content: space-between;
    gap: .75rem;
}

.back-link {
    display: inline-flex;
    align-items: center;
    gap: .35rem;
    color: var(--muted);
    text-decoration: none;
    font-size: .875rem;
    font-weight: 600;
    padding: .4rem .7rem;
    border-radius: 999px;
    background: rgba(255,255,255,.65);
    border: 1px solid var(--line);
}

.back-link:hover { color: var(--accent); border-color: var(--accent); }

/* Room nav */
.room-nav {
    display: flex;
    gap: .5rem;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    padding: .15rem 0 1.1rem;
    margin: 0 -1rem;
    padding-left: 1rem;
    padding-right: 1rem;
    position: sticky;
    top: 0;
    z-index: 20;
    background: linear-gradient(to bottom, var(--bg) 70%, transparent);
    backdrop-filter: blur(8px);
}

.room-nav::-webkit-scrollbar { display: none; }

.room-nav a {
    flex: 0 0 auto;
    text-decoration: none;
    color: var(--ink);
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 999px;
    padding: .55rem .9rem;
    font-size: .8rem;
    font-weight: 700;
    white-space: nowrap;
    box-shadow: 0 1px 2px rgba(0,0,0,.04);
}

.room-nav a:hover,
.room-nav a:focus-visible {
    border-color: var(--accent);
    color: var(--accent);
    outline: none;
}

.room-nav a .count {
    display: inline-block;
    margin-left: .25rem;
    color: var(--muted);
    font-weight: 600;
}

/* Room sections */
.room-section {
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 1rem;
    margin-bottom: 1rem;
    box-shadow: var(--shadow);
    scroll-margin-top: 4.5rem;
}

.room-header {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: baseline;
    gap: .35rem .75rem;
    margin-bottom: .9rem;
    padding-bottom: .7rem;
    border-bottom: 1px solid var(--line);
}

.room-header h2 {
    font-size: 1.1rem;
    font-weight: 800;
}

.room-header span {
    font-size: .78rem;
    color: var(--muted);
}

/* Cards */
.grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: .85rem;
}

.card {
    border: 1px solid var(--line);
    border-radius: 12px;
    overflow: hidden;
    background: #fff;
    display: flex;
    flex-direction: column;
}

.card img {
    width: 100%;
    aspect-ratio: 4 / 3;
    object-fit: cover;
    display: block;
    background: #ebe6de;
}

.card-body {
    padding: .85rem;
    display: flex;
    flex-direction: column;
    gap: .35rem;
    flex: 1;
}

.card-body h3 {
    font-size: .95rem;
    font-weight: 700;
    line-height: 1.3;
}

.card-meta {
    font-size: .78rem;
    color: var(--muted);
}

.card-desc {
    font-size: .78rem;
    color: #57534e;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.card-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: .5rem;
    margin-top: auto;
    padding-top: .55rem;
}

.badge {
    display: inline-block;
    font-size: .68rem;
    padding: .2rem .55rem;
    border-radius: 999px;
    font-weight: 700;
}

.badge-active { background: var(--ok-bg); color: var(--ok); }
.badge-inactive { background: var(--danger-bg); color: var(--danger); }

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: .55rem 1rem;
    border-radius: 10px;
    font-size: .85rem;
    font-weight: 700;
    text-decoration: none;
    border: none;
    cursor: pointer;
    font-family: inherit;
    min-height: 44px;
}

.btn-edit,
.btn-save {
    background: var(--accent);
    color: #fff;
}

.btn-edit:hover,
.btn-save:hover { background: var(--accent-hover); }

.btn-back {
    background: #ebe6de;
    color: var(--ink);
}

.btn-back:hover { background: #e0d8cc; }

.empty {
    color: var(--muted);
    font-size: .875rem;
    padding: .5rem 0;
}

/* Alerts */
.alert {
    padding: .85rem 1rem;
    border-radius: 10px;
    margin-bottom: 1rem;
    font-size: .875rem;
}

.alert-success { background: var(--ok-bg); color: var(--ok); }
.alert-error { background: var(--danger-bg); color: var(--danger); }

/* Form */
.form-card {
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 1rem;
    box-shadow: var(--shadow);
    max-width: 640px;
}

.form-group {
    margin-bottom: 1rem;
}

.form-group label {
    display: block;
    font-size: .82rem;
    font-weight: 700;
    margin-bottom: .4rem;
}

.form-group input[type="text"],
.form-group input[type="password"],
.form-group textarea {
    width: 100%;
    padding: .7rem .85rem;
    border: 1px solid var(--line);
    border-radius: 10px;
    font-size: 1rem;
    font-family: inherit;
    background: #fff;
    color: var(--ink);
    min-height: 44px;
}

.form-group textarea {
    min-height: 130px;
    resize: vertical;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: 2px solid var(--accent-soft);
    border-color: var(--accent);
}

.check-row {
    display: flex;
    align-items: center;
    gap: .55rem;
    min-height: 44px;
}

.check-row input {
    width: 1.1rem;
    height: 1.1rem;
    accent-color: var(--accent);
}

.check-row label {
    margin: 0;
    font-weight: 600;
}

/* Upload zone */
.upload-zone {
    position: relative;
    border: 1.5px dashed #c4b9a8;
    border-radius: 12px;
    background: #faf7f2;
    overflow: hidden;
    cursor: pointer;
    transition: border-color .15s, background .15s;
}

.upload-zone:hover,
.upload-zone:focus-within {
    border-color: var(--accent);
    background: #f3faf8;
}

.upload-zone input[type="file"] {
    position: absolute;
    inset: 0;
    opacity: 0;
    cursor: pointer;
    width: 100%;
    height: 100%;
}

.upload-preview {
    display: block;
    width: 100%;
    max-height: 280px;
    object-fit: cover;
    background: #ebe6de;
}

.upload-preview[hidden] { display: none; }

.upload-placeholder {
    padding: 1.75rem 1rem;
    text-align: center;
    color: var(--muted);
    pointer-events: none;
}

.upload-placeholder strong {
    display: block;
    color: var(--ink);
    font-size: .95rem;
    margin-bottom: .25rem;
}

.upload-placeholder span {
    font-size: .8rem;
}

.hint {
    font-size: .78rem;
    color: var(--muted);
    margin-top: .45rem;
}

.form-actions {
    display: flex;
    flex-direction: column;
    gap: .6rem;
    margin-top: 1.25rem;
}

.form-actions .btn { width: 100%; }

/* Desktop */
@media (min-width: 640px) {
    .container { padding: 1.5rem 1.5rem 3rem; }

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

    .room-section { padding: 1.25rem; }

    .form-actions {
        flex-direction: row;
    }

    .form-actions .btn { width: auto; min-width: 120px; }

    .room-nav {
        margin: 0;
        padding-left: 0;
        padding-right: 0;
        flex-wrap: wrap;
        overflow: visible;
    }
}

@media (min-width: 900px) {
    .grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .card img {
        aspect-ratio: 3 / 2;
    }
}

/* Login */
.login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1.25rem;
}

.login-card {
    width: min(400px, 100%);
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 1.5rem;
}

.login-card h1 {
    font-size: 1.6rem;
    font-weight: 800;
    color: var(--accent);
    letter-spacing: -.02em;
}

.login-card > p {
    color: var(--muted);
    font-size: .9rem;
    margin: .25rem 0 1.25rem;
}

.login-btn {
    width: 100%;
    margin-top: .35rem;
}