/* ══════════════════════════════════════════════════
   LevainLogic — The Sourdough Hydration Decoder
   Design: Warm wheat + dark earth — rustic bakery
   ══════════════════════════════════════════════════ */

:root {
    --clr-bg:          #fdfcf8;
    --clr-surface-1:   #ffffff;
    --clr-surface-2:   #f6f4ed;
    --clr-border:      #e5e2d9;
    --clr-text:        #1e293b;
    --clr-text-muted:  #64748b;
    --clr-accent:      #d97706;
    --clr-accent-glow: rgba(217, 119, 6, 0.12);
    --clr-water:       #3b82f6;
    --clr-flour:       #f59e0b;
    --radius:          10px;
    --font-sans:       'Inter', system-ui, sans-serif;
    --font-display:    'Outfit', system-ui, sans-serif;
    --font-mono:       'JetBrains Mono', monospace;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; scroll-behavior: smooth; }
body { font-family: var(--font-sans); background: var(--clr-bg); color: var(--clr-text); line-height: 1.6; min-height: 100vh; }
.container { width: 100%; max-width: 1100px; margin: 0 auto; padding: 0 1rem; }

.site-header { background: linear-gradient(135deg, #f6f4ed 0%, #fdfcf8 100%); border-bottom: 2px solid var(--clr-accent); padding: 2rem 0 1.5rem; text-align: center; }
.header-inner { display: flex; flex-direction: column; align-items: center; gap: 0.4rem; }
.brand { display: flex; align-items: center; gap: 0.6rem; }
.brand-icon { font-size: 2.2rem; }
.brand-name { font-family: var(--font-display); font-size: 2rem; font-weight: 700; color: var(--clr-text); }
.brand-accent { color: var(--clr-accent); }
.brand-tagline { font-size: 0.82rem; font-weight: 600; color: var(--clr-accent); text-transform: uppercase; letter-spacing: 1.5px; }
.brand-subtitle { font-size: 0.82rem; color: var(--clr-text-muted); max-width: 520px; }

.privacy-badge { display: inline-flex; align-items: center; gap: 0.5rem; background: var(--clr-accent-glow); border: 1px solid var(--clr-accent); border-radius: 99px; padding: 0.35rem 1rem; font-size: 0.75rem; color: var(--clr-accent); margin: 1.5rem auto; width: fit-content; }
.badge-icon { font-size: 0.9rem; }

.app-grid { display: grid; grid-template-columns: 1fr; gap: 1.5rem; }
@media (min-width: 768px) { .app-grid { grid-template-columns: 380px 1fr; } }

.panel { background: var(--clr-surface-1); border: 1px solid var(--clr-border); border-radius: var(--radius); padding: 1.5rem; }
.panel-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 1.2rem; }
.panel-title { font-family: var(--font-display); font-size: 1.25rem; font-weight: 700; color: var(--clr-accent); margin-bottom: 0; }

.unit-toggle { display: flex; background: var(--clr-surface-2); border: 1px solid var(--clr-border); border-radius: 6px; overflow: hidden; }
.unit-btn { padding: 0.4rem 0.8rem; border: none; background: transparent; color: var(--clr-text-muted); font-size: 0.8rem; font-weight: 600; font-family: var(--font-sans); cursor: pointer; transition: 0.2s; }
.unit-btn.active { background: var(--clr-accent); color: #ffffff; }

.input-group { margin-bottom: 1rem; }
.input-group label { display: block; font-size: 0.8rem; font-weight: 500; color: var(--clr-text-muted); margin-bottom: 0.3rem; }
.input-group input, .input-group select { width: 100%; padding: 0.6rem 0.8rem; font-size: 0.95rem; background: var(--clr-surface-2); color: var(--clr-text); border: 1px solid var(--clr-border); border-radius: 6px; font-family: var(--font-mono); transition: border-color 0.2s; }
.input-group input:focus, .input-group select:focus { outline: none; border-color: var(--clr-accent); }
.input-hint { font-size: 0.7rem; color: var(--clr-text-muted); margin-top: 0.2rem; display: block; }
.input-fieldset { border: 1px solid var(--clr-border); border-radius: 8px; padding: 1rem; margin-bottom: 1rem; }
.input-fieldset legend { font-size: 0.78rem; font-weight: 600; color: var(--clr-accent); padding: 0 0.5rem; }

.btn-calculate { width: 100%; padding: 0.8rem; font-size: 1rem; font-weight: 700; background: linear-gradient(135deg, var(--clr-accent), #b88430); color: #ffffff; border: none; border-radius: 8px; cursor: pointer; transition: transform 0.15s, box-shadow 0.2s; }
.btn-calculate:hover { transform: translateY(-1px); box-shadow: 0 6px 20px rgba(212, 162, 76, 0.3); }

/* Hydration Gauge */
.hydration-gauge-container { margin-bottom: 2rem; background: var(--clr-surface-2); padding: 1.5rem; border-radius: 8px; border: 1px solid var(--clr-border); }
.hydration-gauge-wrapper { position: relative; width: 100%; margin-top: 1.5rem; }
.hydration-track { position: relative; height: 32px; background: rgba(0,0,0,0.3); border-radius: 16px; border: 1px solid var(--clr-border); box-shadow: inset 0 2px 4px rgba(0,0,0,0.5); }
.hydration-track-inner { position: absolute; top: 0; left: 0; right: 0; bottom: 0; border-radius: 15px; overflow: hidden; }

.hydration-zone { position: absolute; top: 0; height: 100%; display: flex; align-items: center; justify-content: center; font-size: 0.65rem; font-weight: 700; color: #171210; text-transform: uppercase; letter-spacing: 0.5px; opacity: 0.85; transition: opacity 0.2s; border-right: 1px solid rgba(0,0,0,0.2); }
.hydration-zone:hover { opacity: 1; }
.hydration-zone span { padding: 0 0.2rem; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.zone-bagel { background: #fcd34d; }
.zone-sandwich { background: #fbbf24; }
.zone-boule { background: #f59e0b; }
.zone-focaccia { background: #d97706; border-right: none; }

.hydration-marker { position: absolute; top: -8px; bottom: -8px; width: 4px; background: #fff; box-shadow: 0 0 8px rgba(255,255,255,0.8), 0 0 2px rgba(0,0,0,0.5); z-index: 10; transition: left 0.5s cubic-bezier(0.4, 0, 0.2, 1); border-radius: 2px; }
.marker-value { position: absolute; top: -30px; left: 50%; transform: translateX(-50%); background: var(--clr-text); color: #ffffff; font-family: var(--font-mono); font-weight: 800; font-size: 0.85rem; padding: 0.2rem 0.5rem; border-radius: 4px; border: 1px solid var(--clr-border); box-shadow: 0 4px 6px rgba(0,0,0,0.3); }
.marker-value::after { content: ''; position: absolute; bottom: -5px; left: 50%; transform: translateX(-50%); border-width: 5px 5px 0; border-style: solid; border-color: var(--clr-text) transparent transparent transparent; }

.gauge-scale { display: flex; justify-content: space-between; font-size: 0.75rem; color: var(--clr-text-muted); margin-top: 0.6rem; font-family: var(--font-mono); padding: 0 0.2rem; }

/* Results Grid */
.summary-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(130px, 1fr)); gap: 0.8rem; }
.summary-card { background: var(--clr-surface-2); border: 1px solid var(--clr-border); border-radius: 8px; padding: 0.8rem; text-align: center; }
.summary-card--highlight { border-color: var(--clr-accent); background: var(--clr-accent-glow); }
.summary-label { display: block; font-size: 0.7rem; color: var(--clr-text-muted); text-transform: uppercase; letter-spacing: 0.8px; }
.summary-value { display: flex; justify-content: center; align-items: baseline; gap: 0.2rem; font-family: var(--font-mono); font-size: 1.4rem; font-weight: 700; color: var(--clr-text); margin-top: 0.25rem; }
.summary-card--highlight .summary-value { color: var(--clr-accent); }

/* Ads */
.ad-slot { display: flex; align-items: center; justify-content: center; border: 2px dashed var(--clr-border); color: var(--clr-text-muted); font-size: 0.7rem; margin: 1rem auto; border-radius: 6px; }
.ad-slot--mobile { width: 320px; height: 50px; }
.ad-slot--desktop { display: none; width: 728px; height: 90px; }
@media (min-width: 768px) { .ad-slot--mobile { display: none; } .ad-slot--desktop { display: flex; } }
.site-footer { text-align: center; padding: 2rem 0; color: var(--clr-text-muted); font-size: 0.75rem; border-top: 1px solid var(--clr-border); margin-top: 3rem; }

/* Dynamic / Fixed Zones */
.zone-bagel { left: 14.28%; width: 7.14%; }
.zone-sandwich { left: 28.57%; width: 14.28%; }
.zone-boule { left: 42.85%; width: 11.43%; }
.zone-focaccia { left: 54.28%; width: 31.42%; }
.unit-sm { font-size: 0.9rem; }

/* ═══════════════ AFFILIATE & SEO ═══════════════ */
.seo-card {
    background: var(--clr-surface-1);
    border: 1px solid var(--clr-border);
    border-radius: var(--radius);
    padding: 1.5rem;
    margin: 2rem 0;
}
.seo-card h2 {
    color: var(--clr-text);
    margin-bottom: 0.5rem;
    font-size: 1.25rem;
}
.seo-card p {
    color: var(--clr-text-muted);
    line-height: 1.6;
}
.affiliate-gear a {
    color: var(--clr-accent);
    font-weight: 600;
    text-decoration: none;
}
.affiliate-gear a:hover {
    color: var(--clr-text);
    text-decoration: underline;
}