/* Smart Nutrition System — design system */

:root {
    --font-sans: "Plus Jakarta Sans", system-ui, -apple-system, "Segoe UI", sans-serif;
    --color-bg: #0f1412;
    --color-bg-elevated: #151c19;
    --color-surface: #1a2320;
    --color-surface-hover: #222d29;
    --color-border: rgba(255, 255, 255, 0.08);
    --color-border-strong: rgba(255, 255, 255, 0.14);
    --color-text: #f3f6f4;
    --color-text-muted: #9caaa4;
    --color-accent: #3ecf8e;
    --color-accent-dim: #2a9d62;
    --color-accent-glow: rgba(62, 207, 142, 0.25);
    --color-warn: #eab308;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 22px;
    --shadow-soft: 0 18px 50px rgba(0, 0, 0, 0.45);
    --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.35);
    --space-xs: 0.35rem;
    --space-sm: 0.65rem;
    --space-md: 1rem;
    --space-lg: 1.35rem;
    --space-xl: 2rem;
    --space-2xl: 2.75rem;
    --sidebar-width: 15.5rem;
    --max-content: 1120px;
    --transition: 0.2s ease;
}

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

html {
    -webkit-text-size-adjust: 100%;
}

body {
    margin: 0;
    font-family: var(--font-sans);
    font-size: 1rem;
    line-height: 1.55;
    color: var(--color-text);
    background: var(--color-bg);
    min-height: 100vh;
}

.page--auth {
    background:
        radial-gradient(1200px 600px at 85% -10%, rgba(62, 207, 142, 0.14), transparent 55%),
        radial-gradient(900px 500px at 10% 100%, rgba(42, 157, 98, 0.12), transparent 50%),
        var(--color-bg);
}

.page--app {
    background: var(--color-bg);
}

/* ——— Auth layout ——— */

.auth-shell {
    display: grid;
    min-height: 100vh;
    grid-template-columns: minmax(0, 1fr) minmax(320px, 440px);
    align-items: stretch;
    max-width: 1200px;
    margin: 0 auto;
}

@media (max-width: 900px) {
    .auth-shell {
        grid-template-columns: 1fr;
    }
}

.auth-brand {
    padding: var(--space-2xl) var(--space-xl);
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: var(--space-md);
    max-width: 34rem;
}

@media (max-width: 900px) {
    .auth-brand {
        padding: var(--space-xl) var(--space-lg) var(--space-md);
        text-align: center;
        align-items: center;
        max-width: none;
    }
}

.auth-brand .brand-mark {
    color: var(--color-accent);
    margin-bottom: var(--space-sm);
}

.eyebrow {
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--color-accent);
    margin: 0;
}

.eyebrow--on-dark {
    opacity: 0.9;
}

.auth-title {
    font-size: clamp(1.85rem, 4vw, 2.35rem);
    font-weight: 700;
    line-height: 1.15;
    margin: 0;
    letter-spacing: -0.02em;
}

.auth-lead {
    margin: 0;
    color: var(--color-text-muted);
    font-size: 1.05rem;
    max-width: 28ch;
}

@media (max-width: 900px) {
    .auth-lead {
        max-width: 42ch;
    }
}

.auth-panel {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-xl);
    border-left: 1px solid var(--color-border);
    background: linear-gradient(180deg, var(--color-bg-elevated) 0%, var(--color-bg) 100%);
}

@media (max-width: 900px) {
    .auth-panel {
        border-left: none;
        border-top: 1px solid var(--color-border);
        padding-bottom: var(--space-2xl);
    }
}

/* ——— App layout ——— */

.app-layout {
    display: grid;
    grid-template-columns: var(--sidebar-width) 1fr;
    min-height: 100vh;
}

@media (max-width: 768px) {
    .app-layout {
        grid-template-columns: 1fr;
    }
}

.sidebar {
    background: var(--color-bg-elevated);
    border-right: 1px solid var(--color-border);
    display: flex;
    flex-direction: column;
    padding: var(--space-lg);
    gap: var(--space-xl);
}

@media (max-width: 768px) {
    .sidebar {
        flex-direction: row;
        flex-wrap: wrap;
        align-items: center;
        border-right: none;
        border-bottom: 1px solid var(--color-border);
        gap: var(--space-md);
    }

    .sidebar__footer {
        display: none;
    }
}

.sidebar__brand {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.brand-mark--compact {
    color: var(--color-accent);
    flex-shrink: 0;
}

.sidebar__name {
    display: block;
    font-size: 0.95rem;
    line-height: 1.2;
}

.sidebar__tag {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    font-weight: 500;
}

.sidebar__nav {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

@media (max-width: 768px) {
    .sidebar__nav {
        flex-direction: row;
        flex-wrap: wrap;
        margin-left: auto;
    }
}

.nav-link {
    color: var(--color-text-muted);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.9rem;
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-md);
    transition: background var(--transition), color var(--transition);
}

.nav-link:hover {
    color: var(--color-text);
    background: var(--color-surface);
}

.nav-link--active {
    color: var(--color-text);
    background: var(--color-surface);
    box-shadow: inset 0 0 0 1px var(--color-border);
}

.sidebar__footer {
    margin-top: auto;
}

.sidebar__hint {
    font-size: 0.8rem;
    color: var(--color-text-muted);
    margin: 0;
    line-height: 1.45;
}

.app-body {
    display: flex;
    flex-direction: column;
    min-width: 0;
}

.topbar {
    padding: var(--space-xl) var(--space-xl) var(--space-lg);
    border-bottom: 1px solid var(--color-border);
    display: flex;
    flex-wrap: wrap;
    align-items: flex-start;
    justify-content: space-between;
    gap: var(--space-lg);
    background: linear-gradient(180deg, var(--color-bg-elevated) 0%, transparent 100%);
}

.page-heading {
    font-size: clamp(1.45rem, 3vw, 1.85rem);
    font-weight: 700;
    margin: var(--space-xs) 0 0;
    letter-spacing: -0.02em;
}

.topbar__lead {
    margin: var(--space-sm) 0 0;
    color: var(--color-text-muted);
    max-width: 40ch;
    font-size: 0.95rem;
}

.topbar__meta {
    align-self: center;
}

.pill {
    display: inline-flex;
    align-items: center;
    padding: 0.35rem 0.85rem;
    border-radius: 999px;
    font-size: 0.8rem;
    font-weight: 600;
}

.pill--muted {
    background: var(--color-surface);
    color: var(--color-text-muted);
    border: 1px solid var(--color-border);
}

.main-content {
    padding: var(--space-xl);
    max-width: var(--max-content);
    width: 100%;
    margin: 0 auto;
}

.section {
    margin-bottom: var(--space-xl);
}

.section--flush {
    margin-bottom: var(--space-2xl);
}

/* ——— Cards & forms ——— */

.card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    box-shadow: var(--shadow-card);
}

.card--auth {
    width: 100%;
    max-width: 400px;
}

.card--muted {
    background: rgba(26, 35, 32, 0.65);
}

.card__title {
    font-size: 1.15rem;
    font-weight: 700;
    margin: 0 0 var(--space-xs);
    letter-spacing: -0.01em;
}

.card__subtitle {
    margin: 0 0 var(--space-lg);
    color: var(--color-text-muted);
    font-size: 0.92rem;
}

.card__footnote {
    margin: var(--space-lg) 0 0;
    font-size: 0.78rem;
    color: var(--color-text-muted);
}

.form-stack {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-md);
}

@media (max-width: 560px) {
    .form-grid {
        grid-template-columns: 1fr;
    }
}

.field {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.field--full {
    grid-column: 1 / -1;
}

.field__label {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--color-text-muted);
}

.field__input {
    font-family: inherit;
    font-size: 1rem;
    padding: 0.65rem 0.85rem;
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border-strong);
    background: var(--color-bg-elevated);
    color: var(--color-text);
    transition: border-color var(--transition), box-shadow var(--transition);
}

.field__input::placeholder {
    color: rgba(156, 170, 164, 0.55);
}

.field__input:hover {
    border-color: rgba(255, 255, 255, 0.22);
}

.field__input:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px var(--color-accent-glow);
}

.form-actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
    margin-top: var(--space-sm);
}

.form-actions--inline {
    margin-top: var(--space-md);
}

@media (max-width: 420px) {
    .form-actions {
        flex-direction: column;
    }

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

.btn {
    font-family: inherit;
    font-size: 0.9rem;
    font-weight: 600;
    padding: 0.65rem 1.15rem;
    border-radius: var(--radius-md);
    border: none;
    cursor: pointer;
    transition: background var(--transition), transform 0.1s ease, box-shadow var(--transition);
}

.btn:active {
    transform: scale(0.98);
}

.btn--primary {
    background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-dim) 100%);
    color: #041208;
    box-shadow: 0 4px 14px var(--color-accent-glow);
}

.btn--primary:hover {
    filter: brightness(1.06);
}

.btn--secondary {
    background: var(--color-surface-hover);
    color: var(--color-text);
    border: 1px solid var(--color-border-strong);
}

.btn--secondary:hover {
    background: var(--color-surface);
}

.btn--wide {
    width: 100%;
    justify-content: center;
    padding: 0.75rem 1.25rem;
}

.grid {
    display: grid;
    gap: var(--space-lg);
}

.grid--split {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

@media (max-width: 880px) {
    .grid--split {
        grid-template-columns: 1fr;
    }
}

.steps {
    margin: 0;
    padding-left: 0;
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
    font-size: 0.92rem;
    color: var(--color-text-muted);
}

.steps li {
    display: flex;
    gap: var(--space-md);
    align-items: flex-start;
}

.steps__num {
    flex-shrink: 0;
    width: 1.65rem;
    height: 1.65rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    background: rgba(62, 207, 142, 0.15);
    color: var(--color-accent);
    font-size: 0.75rem;
    font-weight: 700;
}

.disclaimer {
    margin: var(--space-lg) 0 0;
    padding-top: var(--space-lg);
    border-top: 1px solid var(--color-border);
    font-size: 0.78rem;
    color: var(--color-text-muted);
    line-height: 1.5;
}

/* ——— Results ——— */

.result-host:empty {
    display: none;
}

.result-panel {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
}

.result-summary {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: var(--space-md);
}

.stat-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--space-lg);
}

.stat-card__label {
    font-size: 0.72rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--color-text-muted);
    margin: 0 0 var(--space-xs);
}

.stat-card__value {
    font-size: 1.35rem;
    font-weight: 700;
    margin: 0;
    letter-spacing: -0.02em;
}

.stat-card__hint {
    font-size: 0.8rem;
    color: var(--color-text-muted);
    margin: var(--space-xs) 0 0;
}

.stat-card--accent {
    border-color: rgba(62, 207, 142, 0.35);
    box-shadow: 0 0 0 1px rgba(62, 207, 142, 0.08);
}

.result-heading {
    font-size: 1.05rem;
    font-weight: 700;
    margin: 0;
}

.meal-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: var(--space-md);
}

.meal-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--space-lg);
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
    transition: border-color var(--transition), box-shadow var(--transition);
}

.meal-card:hover {
    border-color: rgba(255, 255, 255, 0.12);
    box-shadow: var(--shadow-card);
}

.meal-card__day {
    font-size: 0.78rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--color-accent);
    margin: 0;
}

.meal-row {
    display: grid;
    gap: 0.2rem;
}

.meal-row__label {
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.meal-row__text {
    font-size: 0.9rem;
    color: var(--color-text);
    margin: 0;
}

.result-error {
    background: rgba(234, 179, 8, 0.12);
    border: 1px solid rgba(234, 179, 8, 0.35);
    color: #facc15;
    padding: var(--space-md) var(--space-lg);
    border-radius: var(--radius-md);
    font-size: 0.9rem;
}

.result-panel__head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-md);
    flex-wrap: wrap;
}

.print-only {
    display: none;
}

.print-meta {
    margin: 0 0 var(--space-sm);
    font-size: 0.8rem;
    color: #444;
}

/* ——— Print (plan only, paper-friendly) ——— */

@media print {
    @page {
        margin: 12mm 14mm;
    }

    body {
        background: #fff !important;
        color: #111 !important;
        -webkit-print-color-adjust: exact;
        print-color-adjust: exact;
    }

    .print-only {
        display: block !important;
    }

    .no-print {
        display: none !important;
    }

    .sidebar,
    .topbar,
    .main-content > .section:not(.section--flush) {
        display: none !important;
    }

    .app-layout {
        display: block !important;
    }

    .app-body,
    .main-content {
        padding: 0 !important;
        max-width: none !important;
    }

    .section--flush {
        margin: 0 !important;
    }

    .result-host {
        display: block !important;
    }

    .result-panel {
        gap: 0.85rem;
    }

    .result-heading,
    .meal-card__day {
        color: #0d3d2a !important;
    }

    .stat-card,
    .meal-card {
        background: #f8faf9 !important;
        border: 1px solid #ccc !important;
        box-shadow: none !important;
        break-inside: avoid;
        page-break-inside: avoid;
    }

    .stat-card__label,
    .stat-card__hint,
    .meal-row__label {
        color: #555 !important;
    }

    .stat-card__value,
    .meal-row__text {
        color: #111 !important;
    }

    .meal-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 0.65rem;
    }

    .result-summary {
        grid-template-columns: repeat(3, 1fr);
        gap: 0.65rem;
    }

    .meal-card:hover,
    .stat-card--accent {
        box-shadow: none !important;
    }
}