:root {
    --bg: #0b0d11;
    --surface: #1a1d24;
    --surface-glass: rgba(28, 32, 40, 0.55);
    --border: #2a2e37;
    --border-glass: rgba(255, 255, 255, 0.08);
    --text: #e8e9ed;
    --muted: #9aa0ab;
    --accent: #4ade80;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    background: var(--bg);
    color: var(--text);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    position: relative;
}

/* ===== Background effects ===== */

.bg-fx {
    position: fixed;
    inset: 0;
    z-index: -1;
    overflow: hidden;
    background: var(--bg);
}

.bg-blob {
    position: absolute;
    width: 46vw;
    height: 46vw;
    border-radius: 50%;
    filter: blur(70px);
    opacity: 0.35;
    will-change: transform;
}

.bg-blob-1 {
    top: -10%;
    left: -10%;
    background: radial-gradient(circle, #22c55e, transparent 70%);
    animation: drift1 26s ease-in-out infinite;
}

.bg-blob-2 {
    top: 30%;
    right: -15%;
    background: radial-gradient(circle, #3b82f6, transparent 70%);
    animation: drift2 32s ease-in-out infinite;
}

.bg-blob-3 {
    bottom: -20%;
    left: 20%;
    width: 38vw;
    height: 38vw;
    background: radial-gradient(circle, #a855f7, transparent 70%);
    animation: drift3 38s ease-in-out infinite;
}

.bg-grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px);
    background-size: 42px 42px;
    mask-image: radial-gradient(ellipse 70% 60% at 50% 20%, black 40%, transparent 85%);
}

@keyframes drift1 {
    0%, 100% { transform: translate(0, 0) scale(1); }
    50% { transform: translate(6vw, 8vh) scale(1.15); }
}

@keyframes drift2 {
    0%, 100% { transform: translate(0, 0) scale(1); }
    50% { transform: translate(-7vw, 6vh) scale(1.1); }
}

@keyframes drift3 {
    0%, 100% { transform: translate(0, 0) scale(1); }
    50% { transform: translate(4vw, -6vh) scale(1.2); }
}

@media (prefers-reduced-motion: reduce) {
    .bg-blob {
        animation: none;
    }
}

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

.page {
    max-width: 720px;
    margin: 0 auto;
    padding: 48px 20px;
    animation: fadeInUp 0.5s ease both;
}

.site-header {
    text-align: center;
    padding-bottom: 28px;
    margin-bottom: 36px;
    border-bottom: 1px solid var(--border-glass);
}

h1 {
    margin: 0 0 10px;
    font-size: 52px;
    font-weight: 800;
    letter-spacing: -0.03em;
}

.subtitle {
    color: var(--muted);
    margin: 0 auto 22px;
    max-width: 460px;
    font-size: 15px;
    line-height: 1.55;
}

.header-nav {
    display: flex;
    justify-content: center;
    gap: 10px;
    flex-wrap: wrap;
}

.nav-link {
    flex-shrink: 0;
    background: var(--surface-glass);
    border: 1px solid var(--border-glass);
    backdrop-filter: blur(10px);
    color: var(--text);
    text-decoration: none;
    font-size: 13px;
    font-weight: 600;
    padding: 9px 16px;
    border-radius: 999px;
    transition: border-color 0.15s ease, transform 0.15s ease, background 0.15s ease;
}

.nav-link:hover {
    border-color: var(--accent);
    background: rgba(255, 255, 255, 0.06);
    transform: translateY(-1px);
}

.upload-form {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.dropzone {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px 20px;
    border: 2px dashed var(--border);
    border-radius: 12px;
    background: var(--surface-glass);
    backdrop-filter: blur(10px);
    cursor: pointer;
    text-align: center;
    color: var(--muted);
    transition: border-color 0.15s ease, color 0.15s ease, background 0.15s ease, transform 0.15s ease;
}

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

.dropzone:hover {
    transform: translateY(-1px);
}

.dropzone.has-file {
    border-color: var(--accent);
    border-style: solid;
    color: var(--accent);
}

.dropzone input {
    display: none;
}

button {
    padding: 14px 20px;
    min-height: 48px;
    border: none;
    border-radius: 8px;
    background: var(--accent);
    color: #0f1115;
    font-weight: 600;
    font-size: 16px;
    cursor: pointer;
    -webkit-tap-highlight-color: transparent;
    transition: transform 0.15s ease, opacity 0.15s ease, box-shadow 0.15s ease;
}

button:not(:disabled):hover {
    opacity: 0.9;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(74, 222, 128, 0.25);
}

button:not(:disabled):active {
    transform: translateY(0) scale(0.97);
}

button:disabled {
    opacity: 0.7;
    cursor: wait;
}

.spinner {
    display: inline-block;
    width: 14px;
    height: 14px;
    margin-right: 8px;
    vertical-align: middle;
    border: 2px solid rgba(15, 17, 21, 0.35);
    border-top-color: #0f1115;
    border-radius: 50%;
    animation: spin 0.7s linear infinite;
}

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

.hint {
    color: var(--muted);
    font-size: 14px;
    margin-top: 16px;
}

.divider {
    display: flex;
    align-items: center;
    text-align: center;
    color: var(--muted);
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin: 28px 0;
}

.divider::before,
.divider::after {
    content: "";
    flex: 1;
    height: 1px;
    background: var(--border-glass);
}

.divider span {
    padding: 0 12px;
}

.statement-form {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.statement-input {
    width: 100%;
    resize: none;
    overflow: hidden;
    padding: 16px;
    font-family: inherit;
    font-size: 15px;
    line-height: 1.5;
    color: var(--text);
    background: var(--surface-glass);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-glass);
    border-radius: 12px;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

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

.statement-input:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(74, 222, 128, 0.15);
}

.statement-input.pulse {
    animation: pulseGlow 0.5s ease;
}

@keyframes pulseGlow {
    0% { box-shadow: 0 0 0 0 rgba(74, 222, 128, 0.35); }
    100% { box-shadow: 0 0 0 8px rgba(74, 222, 128, 0); }
}

.statement-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.chip {
    width: auto;
    min-height: 34px;
    padding: 6px 14px;
    font-size: 12px;
    font-weight: 500;
    background: var(--surface-glass);
    color: var(--muted);
    border: 1px solid var(--border-glass);
    backdrop-filter: blur(8px);
    border-radius: 999px;
}

.chip:not(:disabled):hover {
    color: var(--text);
    border-color: var(--accent);
    transform: translateY(-1px);
    box-shadow: none;
}

.chip:not(:disabled):active {
    transform: translateY(0) scale(0.96);
}

.error {
    background: rgba(58, 26, 26, 0.6);
    backdrop-filter: blur(10px);
    border: 1px solid #5c2a2a;
    color: #ff9c9c;
    padding: 12px 16px;
    border-radius: 8px;
    margin-bottom: 20px;
    animation: fadeInUp 0.35s ease both;
}

.success {
    background: rgba(20, 42, 28, 0.6);
    backdrop-filter: blur(10px);
    border: 1px solid #2f6b46;
    color: var(--accent);
    padding: 12px 16px;
    border-radius: 8px;
    margin-bottom: 20px;
    animation: fadeInUp 0.35s ease both;
}

.back-link {
    display: inline-block;
    margin-bottom: 24px;
    color: var(--accent);
    text-decoration: none;
}

.inventory-link {
    margin-left: 16px;
    color: var(--muted);
}

.receipt-date {
    color: var(--muted);
    font-size: 14px;
    margin-top: -8px;
    margin-bottom: 20px;
}

.inventory {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 16px;
}

.card {
    background: var(--surface-glass);
    backdrop-filter: blur(14px) saturate(130%);
    border: 1px solid var(--border-glass);
    border-radius: 12px;
    padding: 16px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
    animation: fadeInUp 0.4s ease both;
    transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
}

.card h2 {
    margin: 0 0 8px;
    font-size: 18px;
}

.card p {
    margin: 4px 0;
    color: var(--muted);
    font-size: 14px;
}

.card .expiration {
    font-weight: 600;
}

.card.urgency-danger {
    border-color: #ef4444;
}
.card.urgency-danger .expiration {
    color: #ef4444;
}

.card.urgency-stale {
    border-color: #fb923c;
}
.card.urgency-stale .expiration {
    color: #fb923c;
}

.card.urgency-urgent {
    border-color: #f87171;
}
.card.urgency-urgent .expiration {
    color: #f87171;
}

.card.urgency-soon {
    border-color: #facc15;
}
.card.urgency-soon .expiration {
    color: #facc15;
}

.card.urgency-fresh .expiration {
    color: var(--accent);
}

.discard-tip {
    color: #ef4444 !important;
    font-weight: 700;
}

.stale-tip {
    color: #fb923c !important;
}

.scan-section {
    margin-bottom: 32px;
}

.scan-section h2 {
    font-size: 18px;
    margin-bottom: 12px;
}

.scan-section-compact {
    margin-top: 4px;
    margin-bottom: 24px;
}

.upload-form-compact {
    display: flex;
    align-items: stretch;
    gap: 10px;
    flex-wrap: wrap;
}

.dropzone-compact {
    flex: 1;
    min-width: 180px;
    padding: 10px 14px;
    font-size: 13px;
    justify-content: flex-start;
}

.button-compact {
    width: auto;
    flex-shrink: 0;
    min-height: 40px;
    padding: 8px 18px;
    font-size: 13px;
    background: var(--surface-glass);
    color: var(--text);
    border: 1px solid var(--border-glass);
    backdrop-filter: blur(8px);
}

.button-compact:not(:disabled):hover {
    background: rgba(255, 255, 255, 0.08);
    box-shadow: none;
}

.notice {
    background: rgba(51, 42, 18, 0.6);
    backdrop-filter: blur(10px);
    border: 1px solid #5c4a1f;
    color: #facc15;
    padding: 12px 16px;
    border-radius: 8px;
    margin-bottom: 20px;
    font-size: 14px;
    animation: fadeInUp 0.35s ease both;
}

.card-select {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
    color: var(--muted);
    margin-bottom: 8px;
    cursor: pointer;
    padding: 6px 4px;
    min-height: 32px;
    border-radius: 8px;
    -webkit-tap-highlight-color: transparent;
    transition: background 0.15s ease, color 0.15s ease;
}

.card-select:hover,
.card-select:active {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text);
}

.card-select input[type="checkbox"] {
    width: 22px;
    height: 22px;
    flex-shrink: 0;
    accent-color: var(--accent);
    cursor: pointer;
}

.select-row {
    display: flex;
    flex-wrap: wrap;
    gap: 8px 18px;
    margin-top: 12px;
    padding-top: 10px;
    border-top: 1px solid var(--border-glass);
}

.select-row .card-select {
    margin-bottom: 0;
}

.recipe-button,
.remove-button,
.remove-all-button {
    width: 100%;
    min-height: 50px;
    font-size: 16px;
}

.remove-all-button {
    margin-top: 10px;
    background: rgba(239, 68, 68, 0.12);
    color: #ff9c9c;
    border: 1px solid #5c2a2a;
}

.remove-all-button:not(:disabled):hover {
    background: rgba(239, 68, 68, 0.2);
    box-shadow: 0 4px 12px rgba(239, 68, 68, 0.2);
}

.recipe-button {
    margin-top: 24px;
    background: var(--accent);
}

.remove-button {
    margin-top: 24px;
    background: rgba(239, 68, 68, 0.12);
    color: #ff9c9c;
    border: 1px solid #5c2a2a;
}

.remove-button:not(:disabled):hover {
    background: rgba(239, 68, 68, 0.2);
    box-shadow: 0 4px 12px rgba(239, 68, 68, 0.2);
}

.hint-line {
    margin-bottom: 20px;
    font-size: 13px;
}

.recipe h2 {
    margin-bottom: 4px;
}

.recipe h3 {
    margin-top: 24px;
    margin-bottom: 8px;
    font-size: 16px;
    color: var(--accent);
}

.recipe ul,
.recipe ol {
    margin: 0;
    padding-left: 20px;
    color: var(--text);
}

.recipe li {
    margin-bottom: 6px;
}

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

.interactions {
    margin-bottom: 28px;
}

.interactions h2 {
    font-size: 18px;
    margin-bottom: 4px;
}

.interaction-card {
    background: var(--surface-glass);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-glass);
    border-left: 4px solid #facc15;
    border-radius: 8px;
    padding: 12px 16px;
    margin-top: 10px;
    font-size: 14px;
    animation: fadeInUp 0.4s ease both;
}

.interaction-card.severity-high {
    border-left-color: #ef4444;
}

.interaction-card.severity-medium {
    border-left-color: #facc15;
}

.interaction-card.severity-low {
    border-left-color: var(--accent);
}

.interaction-card p {
    margin: 6px 0 0;
    color: var(--muted);
}

.storage-tip {
    color: var(--accent) !important;
}

.freeze-tip {
    color: #60a5fa !important;
    font-weight: 600;
}

@media (max-width: 480px) {
    h1 {
        font-size: 38px;
    }
}