/* =====================================================
   Moonatna design system
   Warm paper, deep ink, teal action, amber warmth.
   ===================================================== */

:root {
    --bg: #f6f4ee;
    --surface: #ffffff;
    --surface-2: #faf8f3;
    --text: #23211c;
    --muted: #8b8574;
    --primary: #0d7377;
    --primary-strong: #0a5b5e;
    --primary-soft: #def0ef;
    --amber: #b45309;
    --amber-soft: #fdf0dd;
    --green: #15803d;
    --green-soft: #e5f3e9;
    --red: #b3352c;
    --red-soft: #fcebe9;
    --border: #e7e2d5;
    --radius: 1rem;
    --radius-sm: 0.65rem;
    --radius-full: 999px;
    --shadow-sm: 0 1px 2px rgba(35, 33, 28, 0.05);
    --shadow-md: 0 4px 16px rgba(35, 33, 28, 0.08);
    --shadow-lg: 0 16px 40px rgba(35, 33, 28, 0.14);
    --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
    --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
    --font: "Rubik", "Segoe UI", Tahoma, system-ui, -apple-system, sans-serif;
}

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

/* The hidden attribute must always win over component display rules —
   without this, any display:flex/grid component ignores it. */
[hidden] {
    display: none !important;
}

html {
    -webkit-tap-highlight-color: transparent;
}

body {
    margin: 0;
    font-family: var(--font);
    background-color: var(--bg);
    background-image: radial-gradient(1200px 500px at 85% -10%, rgba(13, 115, 119, 0.06), transparent 60%);
    color: var(--text);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

::selection {
    background: var(--primary-soft);
}

/* ---------- top bar ---------- */
.topbar {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    padding: 0.7rem 1.25rem;
    background-color: rgba(246, 244, 238, 0.82);
    -webkit-backdrop-filter: blur(14px);
    backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 50;
}

.brand {
    font-size: 1.3rem;
    font-weight: 800;
    color: var(--primary);
    text-decoration: none;
    white-space: nowrap;
    letter-spacing: -0.01em;
}

.main-nav {
    display: flex;
    gap: 0.25rem;
    overflow-x: auto;
    flex: 1;
    scrollbar-width: none;
}

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

.main-nav a {
    color: var(--muted);
    text-decoration: none;
    padding: 0.45rem 0.85rem;
    border-radius: var(--radius-full);
    white-space: nowrap;
    font-size: 0.95rem;
    font-weight: 500;
    transition: background-color 0.18s var(--ease-out), color 0.18s var(--ease-out), transform 0.12s var(--ease-out);
}

.main-nav a:hover {
    color: var(--text);
    background-color: rgba(255, 255, 255, 0.9);
}

.main-nav a:active {
    transform: scale(0.96);
}

.logout-form {
    margin: 0;
}

.link-button {
    background: none;
    border: none;
    color: var(--muted);
    cursor: pointer;
    font: inherit;
    font-size: 0.95rem;
    padding: 0.45rem 0.85rem;
    border-radius: var(--radius-full);
    transition: background-color 0.18s, color 0.18s;
}

.link-button:hover {
    color: var(--text);
    background-color: rgba(255, 255, 255, 0.9);
}

.page {
    flex: 1;
    width: 100%;
    max-width: 72rem;
    margin: 0 auto;
    padding: 2rem 1.25rem;
}

/* ---------- buttons ---------- */
.btn-primary,
.btn-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    border-radius: var(--radius-full);
    font: inherit;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.12s var(--ease-out), box-shadow 0.2s var(--ease-out), background-color 0.2s, color 0.2s;
}

.btn-primary {
    background-color: var(--primary);
    color: #ffffff;
    border: none;
    padding: 0.75rem 1.6rem;
    box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
    background-color: var(--primary-strong);
    box-shadow: var(--shadow-md);
    transform: translateY(-1px);
}

.btn-primary:active {
    transform: translateY(1px) scale(0.97);
    box-shadow: var(--shadow-sm);
}

.btn-primary:disabled {
    opacity: 0.55;
    cursor: not-allowed;
    transform: none;
}

.btn-secondary {
    background-color: var(--surface);
    color: var(--primary);
    border: 1.5px solid var(--primary);
    padding: 0.55rem 1.1rem;
    box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
    background-color: var(--primary);
    color: #ffffff;
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-secondary:active {
    transform: translateY(1px) scale(0.97);
}

/* ---------- forms ---------- */
.input {
    padding: 0.75rem 1.1rem;
    border: 1.5px solid var(--border);
    border-radius: var(--radius-full);
    font: inherit;
    width: 100%;
    background-color: var(--surface);
    color: var(--text);
    transition: border-color 0.18s, box-shadow 0.18s;
}

.input::placeholder {
    color: var(--muted);
}

.input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 4px var(--primary-soft);
}

/* ---------- cards & alerts ---------- */
.card {
    background-color: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.75rem 1.5rem;
    box-shadow: var(--shadow-sm);
    transition: box-shadow 0.25s var(--ease-out), transform 0.25s var(--ease-out);
}

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

.card h2 {
    margin: 0 0 1.25rem;
    font-size: 1.1rem;
    font-weight: 700;
}

.alert-error {
    background-color: var(--red-soft);
    color: var(--red);
    border: 1px solid #f3c1bc;
    border-radius: var(--radius-sm);
    padding: 0.75rem 1rem;
    margin-bottom: 1.25rem;
    text-align: center;
    font-weight: 500;
}

/* ---------- item list pages (pantry / shopping) ---------- */
.page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    flex-wrap: wrap;
    margin-bottom: 1.75rem;
}

.page-header h1 {
    margin: 0;
    font-size: 1.7rem;
    font-weight: 800;
    letter-spacing: -0.01em;
}

.add-form {
    display: flex;
    gap: 0.6rem;
    flex: 1;
    max-width: 30rem;
}

.category-group {
    margin-bottom: 1.6rem;
}

.category-group h2 {
    font-size: 0.95rem;
    color: var(--muted);
    margin: 0 0 0.6rem;
    font-weight: 600;
    padding-inline-start: 0.25rem;
}

.category-group ul {
    list-style: none;
    margin: 0;
    padding: 0.35rem;
    background-color: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
}

.item-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
    padding: 0.8rem 1rem;
    border-radius: var(--radius-sm);
    cursor: pointer;
    user-select: none;
    -webkit-user-select: none;
    touch-action: pan-y;
    overflow: hidden;
    transition: background-color 0.15s var(--ease-out);
}

.item-row:hover {
    background-color: var(--surface-2);
}

.item-row + .item-row {
    border-top: 1px solid var(--border);
}

.item-name {
    font-weight: 500;
}

.state-chip {
    font-size: 0.78rem;
    font-weight: 600;
    border-radius: var(--radius-full);
    padding: 0.28rem 0.85rem;
    white-space: nowrap;
    transition: background-color 0.2s, color 0.2s;
}

.state-0 {
    background-color: var(--green-soft);
    color: var(--green);
}

.state-1 {
    background-color: var(--amber-soft);
    color: var(--amber);
}

.state-2 {
    background-color: var(--red-soft);
    color: var(--red);
}

.row-actions {
    display: flex;
    align-items: center;
    gap: 0.6rem;
}

.purchase-btn {
    border: 1.5px solid var(--border);
    background-color: var(--surface);
    border-radius: var(--radius-full);
    width: 2.1rem;
    height: 2.1rem;
    cursor: pointer;
    color: var(--primary);
    font-size: 1rem;
    line-height: 1;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: background-color 0.15s, color 0.15s, border-color 0.15s, transform 0.12s var(--ease-spring);
}

.purchase-btn:hover {
    background-color: var(--green);
    border-color: var(--green);
    color: #ffffff;
    transform: scale(1.1);
}

.purchase-btn:active {
    transform: scale(0.94);
}

/* ---------- empty states & lottie ---------- */
.empty-state {
    text-align: center;
    color: var(--muted);
    padding: 3rem 0 2rem;
}

.lottie-mount {
    width: 160px;
    height: 116px;
    margin: 0 auto 0.75rem;
    pointer-events: none;
}

.lottie-hero {
    width: 190px;
    height: 138px;
}

.lottie-burst {
    position: fixed;
    width: 250px;
    height: 250px;
    transform: translate(-50%, -50%);
    pointer-events: none;
    z-index: 300;
}

/* ---------- entrance ---------- */
@keyframes rise {
    from {
        opacity: 0;
        transform: translateY(14px);
    }
    to {
        opacity: 1;
        transform: none;
    }
}

.rise {
    animation: rise 0.45s var(--ease-out) both;
}

@media (max-width: 640px) {
    .topbar {
        flex-wrap: wrap;
        gap: 0.4rem 1rem;
    }

    .main-nav {
        order: 3;
        flex-basis: 100%;
    }

    .page {
        padding: 1.25rem 1rem;
    }
}