/* === Variables === */
:root {
    --bg:          #0f1117;
    --surface:     #1a1d27;
    --surface-alt: #252836;
    --text:        #e2e8f0;
    --text-muted:  #8892a4;
    --accent:      #5b8dee;
    --accent-hover:#7aa3f2;
    --border:      #2d3346;
    --danger:      #f87171;
    --success:     #4ade80;
    --danger-bg:   rgba(248, 113, 113, 0.08);
    --success-bg:  rgba(74, 222, 128, 0.08);
}

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

body {
    font-family: Arial, Helvetica, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    min-height: 100vh;
}

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

a:hover {
    color: var(--accent-hover);
    text-decoration: underline;
}

/* === Navigation === */
nav {
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 60px;
}

.nav-brand {
    font-family: Georgia, serif;
    font-size: 1.25rem;
    color: var(--accent);
    text-decoration: none;
    letter-spacing: 0.02em;
}

.nav-brand:hover {
    color: var(--accent-hover);
    text-decoration: none;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 1.75rem;
    align-items: center;
}

.nav-links a,
.nav-logout {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.2s;
    background: none;
    border: none;
    cursor: pointer;
    font-family: Arial, Helvetica, sans-serif;
    padding: 0;
}

.nav-links a:hover,
.nav-logout:hover {
    color: var(--text);
    text-decoration: none;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text);
    border-radius: 2px;
    transition: all 0.3s;
}

/* === Hero Banner === */
.hero {
    position: relative;
    width: 100%;
    height: 420px;
    overflow: hidden;
    display: flex;
    align-items: flex-end;
}

.hero-image {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        to top,
        rgba(15, 17, 23, 0.95) 20%,
        rgba(15, 17, 23, 0.5) 60%,
        rgba(15, 17, 23, 0.2) 100%
    );
}

.hero-content {
    position: relative;
    padding: 2rem 2rem 2.5rem;
    max-width: 1100px;
    width: 100%;
    margin: 0 auto;
}

.hero-content h1 {
    font-family: Georgia, serif;
    font-size: 2.8rem;
    color: var(--text);
    text-shadow: 0 2px 12px rgba(0, 0, 0, 0.6);
}

/* === Page Header (no hero) === */
.page-header {
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    padding: 2.5rem 1.5rem;
    text-align: center;
}

.page-header h1 {
    font-family: Georgia, serif;
    font-size: 2.2rem;
    color: var(--accent);
}

/* === Content Area === */
.content {
    max-width: 860px;
    margin: 0 auto;
    padding: 2rem 1.5rem;
}

.content p {
    margin-bottom: 1rem;
    font-size: 1rem;
    text-align: left;
    color: var(--text);
}

.content h2,
.content h3 {
    font-family: Georgia, serif;
    color: var(--accent);
    margin: 1.5rem 0 0.75rem;
}

.content ul,
.content ol {
    padding-left: 1.5rem;
    margin-bottom: 1rem;
}

.content li {
    margin-bottom: 0.35rem;
}

.content strong {
    color: var(--text);
}

/* === Countdown Section === */
.countdown-section {
    text-align: center;
    padding: 3rem 1.5rem;
    background: var(--surface);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    margin-top: 1rem;
}

.countdown-section h2 {
    font-family: Georgia, serif;
    font-size: 1rem;
    color: var(--text-muted);
    margin-bottom: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    font-weight: normal;
}

#countdown {
    font-family: Georgia, serif;
    font-size: 2.8rem;
    font-weight: bold;
    color: var(--accent);
    letter-spacing: 0.04em;
}

/* === Auth Pages === */
.auth-wrapper {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: calc(100vh - 60px);
    padding: 2rem 1rem;
}

.auth-form {
    width: 100%;
    max-width: 380px;
    padding: 2rem;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 8px;
}

.auth-form h2 {
    font-family: Georgia, serif;
    font-size: 1.5rem;
    color: var(--accent);
    margin-bottom: 1.5rem;
    text-align: center;
}

.auth-form label {
    display: block;
    margin-bottom: 0.4rem;
    font-size: 0.8rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.auth-form input[type="text"],
.auth-form input[type="password"] {
    width: 100%;
    padding: 0.65rem 0.75rem;
    margin-bottom: 1.1rem;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 4px;
    color: var(--text);
    font-size: 0.95rem;
    font-family: Arial, Helvetica, sans-serif;
    transition: border-color 0.2s;
}

.auth-form input[type="text"]:focus,
.auth-form input[type="password"]:focus {
    outline: none;
    border-color: var(--accent);
}

.auth-form input[type="submit"] {
    width: 100%;
    padding: 0.75rem;
    background: var(--accent);
    color: #fff;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 1rem;
    font-family: Arial, Helvetica, sans-serif;
    transition: background 0.2s;
    margin-top: 0.25rem;
}

.auth-form input[type="submit"]:hover {
    background: var(--accent-hover);
}

.auth-form .link {
    margin-top: 1rem;
    font-size: 0.875rem;
    text-align: center;
    color: var(--text-muted);
}

/* === Shopping List === */
.shopping-wrapper {
    max-width: 700px;
    margin: 2rem auto;
    padding: 0 1.5rem;
}

.shopping-wrapper h1 {
    font-family: Georgia, serif;
    font-size: 2rem;
    color: var(--accent);
    margin-bottom: 1.5rem;
    text-align: center;
}

.shopping-table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 2rem;
    background: var(--surface);
    border-radius: 8px;
    overflow: hidden;
    border: 1px solid var(--border);
}

.shopping-table th {
    background: var(--surface-alt);
    padding: 0.75rem 1rem;
    text-align: left;
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-muted);
    border-bottom: 1px solid var(--border);
}

.shopping-table td {
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--border);
    font-size: 1rem;
}

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

.shopping-table td:last-child {
    text-align: right;
    width: 90px;
}

.shopping-empty {
    text-align: center;
    color: var(--text-muted);
    padding: 1.5rem;
    font-style: italic;
}

.btn-delete {
    background: none;
    border: 1px solid var(--border);
    color: var(--danger);
    padding: 0.3rem 0.7rem;
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.8rem;
    font-family: Arial, Helvetica, sans-serif;
    transition: background 0.2s, border-color 0.2s;
}

.btn-delete:hover {
    background: var(--danger-bg);
    border-color: var(--danger);
}

.add-item-form {
    display: flex;
    gap: 0.75rem;
    align-items: center;
    margin-bottom: 1.5rem;
}

.add-item-form input[type="text"] {
    flex: 1;
    padding: 0.65rem 0.75rem;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 4px;
    color: var(--text);
    font-size: 0.95rem;
    font-family: Arial, Helvetica, sans-serif;
    transition: border-color 0.2s;
}

.add-item-form input[type="text"]:focus {
    outline: none;
    border-color: var(--accent);
}

.add-item-form input[type="submit"] {
    padding: 0.65rem 1.25rem;
    background: var(--accent);
    color: #fff;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.95rem;
    font-family: Arial, Helvetica, sans-serif;
    white-space: nowrap;
    transition: background 0.2s;
}

.add-item-form input[type="submit"]:hover {
    background: var(--accent-hover);
}

/* === Admin Panel === */
.admin-panel {
    max-width: 800px;
    margin: 2rem auto;
    padding: 2rem;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 8px;
}

.admin-panel h2 {
    font-family: Georgia, serif;
    font-size: 1.4rem;
    color: var(--accent);
    margin-bottom: 1.5rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--border);
}

.admin-panel h3 {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin: 1.5rem 0 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.admin-panel label {
    display: block;
    margin-bottom: 0.4rem;
    font-size: 0.8rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.admin-panel input[type="text"],
.admin-panel input[type="datetime-local"],
.admin-panel textarea {
    width: 100%;
    padding: 0.65rem 0.75rem;
    margin-bottom: 1.1rem;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 4px;
    color: var(--text);
    font-size: 0.9rem;
    font-family: monospace;
    transition: border-color 0.2s;
}

.admin-panel input[type="text"]:focus,
.admin-panel input[type="datetime-local"]:focus,
.admin-panel textarea:focus {
    outline: none;
    border-color: var(--accent);
}

.admin-panel input[type="submit"] {
    padding: 0.65rem 1.5rem;
    background: var(--accent);
    color: #fff;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.9rem;
    font-family: Arial, Helvetica, sans-serif;
    transition: background 0.2s;
}

.admin-panel input[type="submit"]:hover {
    background: var(--accent-hover);
}

.admin-panel table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 1rem;
}

.admin-panel th {
    text-align: left;
    padding: 0.6rem 0.75rem;
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-muted);
    border-bottom: 1px solid var(--border);
}

.admin-panel td {
    padding: 0.65rem 0.75rem;
    border-bottom: 1px solid var(--border);
    font-size: 0.9rem;
}

.admin-panel select {
    background: var(--bg);
    border: 1px solid var(--border);
    color: var(--text);
    padding: 0.4rem 0.6rem;
    border-radius: 4px;
    font-size: 0.85rem;
    font-family: Arial, Helvetica, sans-serif;
    margin-right: 0.4rem;
}

.admin-panel p a {
    color: var(--accent);
}

.admin-back {
    text-align: center;
    margin: 2rem;
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* Inline action buttons in admin tables */
.btn-inline {
    background: none;
    border: 1px solid var(--border);
    color: var(--text-muted);
    padding: 0.3rem 0.7rem;
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.8rem;
    font-family: Arial, Helvetica, sans-serif;
    margin-right: 0.25rem;
    transition: all 0.2s;
}

.btn-inline:hover {
    border-color: var(--accent);
    color: var(--accent);
}

/* === Messages === */
.error-message {
    color: var(--danger);
    padding: 0.75rem 1rem;
    margin-bottom: 1rem;
    background: var(--danger-bg);
    border: 1px solid rgba(248, 113, 113, 0.25);
    border-radius: 4px;
    font-size: 0.9rem;
}

.success-message {
    color: var(--success);
    padding: 0.75rem 1rem;
    margin-bottom: 1rem;
    background: var(--success-bg);
    border: 1px solid rgba(74, 222, 128, 0.25);
    border-radius: 4px;
    font-size: 0.9rem;
}

/* === Error Pages === */
.error-page {
    text-align: center;
    padding: 5rem 1.5rem;
}

.error-page h1 {
    font-family: Georgia, serif;
    font-size: 2rem;
    color: var(--danger);
    margin-bottom: 1rem;
}

.error-page p {
    color: var(--text-muted);
    margin-bottom: 0.5rem;
    font-size: 1rem;
}

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

    .nav-links {
        display: none;
        flex-direction: column;
        align-items: flex-start;
        position: absolute;
        top: 60px;
        left: 0;
        right: 0;
        background: var(--surface);
        border-bottom: 1px solid var(--border);
        padding: 1rem 1.5rem;
        gap: 0.75rem;
    }

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

    .hero {
        height: 280px;
    }

    .hero-content h1 {
        font-size: 1.8rem;
    }

    #countdown {
        font-size: 2rem;
    }

    .admin-panel {
        margin: 1rem;
        padding: 1.25rem;
    }

    .add-item-form {
        flex-direction: column;
        align-items: stretch;
    }
}