/* ============================================================
   Fertilizer Calculator — Premium CSS
   PlantCare.dotiam.com  |  fc- prefix
   Amber/Brown theme — #78350f → #f59e0b
   ============================================================ */
@font-face { font-family: 'Inter'; font-display: swap; }

:root {
    --fc-amber:     #d97706;
    --fc-amber-d:   #78350f;
    --fc-amber-l:   #f59e0b;
    --fc-amber-bg:  #fffbeb;
    --fc-border:    #fde68a;
    --fc-border-d:  #fcd34d;
    --fc-text:      #1f2937;
    --fc-muted:     #6b7280;
    --fc-surface:   #ffffff;
    --fc-card:      #fffdf5;
    --fc-green:     #16a34a;
    --fc-green-bg:  #f0fdf4;
    --fc-blue:      #0284c7;
    --fc-blue-bg:   #f0f9ff;
    --fc-radius:    12px;
    --fc-radius-lg: 18px;
    --fc-shadow:    0 2px 16px rgba(217,119,6,.10);
    --fc-shadow-lg: 0 8px 40px rgba(217,119,6,.16);
    --fc-font:      'Inter', -apple-system, sans-serif;
}
*, *::before, *::after { box-sizing: border-box; }

/* Breadcrumb */
.pi-breadcrumb { background:#fff; border-bottom:1px solid var(--fc-border); padding:10px 0; }
.pi-bc-inner   { max-width:1200px; margin:0 auto; padding:0 20px; display:flex; align-items:center; gap:8px; font-size:.8rem; font-family:var(--fc-font); }
.pi-bc-inner a { color:var(--fc-amber); font-weight:500; text-decoration:none; }
.pi-bc-inner a:hover { text-decoration:underline; }
.pi-bc-sep { color:var(--fc-muted); }

/* Hero */
.fc-hero { padding:52px 20px 60px; text-align:center; position:relative; overflow:hidden; }
.fc-hero::before { content:''; position:absolute; inset:0; background:url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/svg%3E"); pointer-events:none; }
.fc-hero-inner  { position:relative; max-width:760px; margin:0 auto; }
.fc-hero-tag    { display:inline-block; background:rgba(255,255,255,.2); border:1px solid rgba(255,255,255,.35); color:#fff; border-radius:30px; padding:5px 18px; font-size:.74rem; font-weight:700; letter-spacing:.5px; margin-bottom:16px; font-family:var(--fc-font); }
.fc-hero-h1     { font-size:clamp(1.8rem,4vw,2.8rem); font-weight:900; color:#fff; text-shadow:0 2px 12px rgba(0,0,0,.2); line-height:1.15; margin:0 0 6px; font-family:var(--fc-font); }
.fc-hero-h1-hi  { display:block; font-size:clamp(.95rem,2.5vw,1.25rem); font-weight:600; opacity:.88; margin-top:6px; }
.fc-hero-sub    { font-size:clamp(.88rem,2vw,1rem); color:rgba(255,255,255,.92); margin:14px 0 4px; line-height:1.6; }
.fc-hero-sub-hi { font-size:.82rem; color:rgba(255,255,255,.78); margin:0 0 18px; }
.fc-hero-badges { display:flex; flex-wrap:wrap; gap:8px; justify-content:center; }
.fc-hero-badges span { background:rgba(255,255,255,.18); border:1px solid rgba(255,255,255,.3); color:#fff; border-radius:20px; padding:5px 14px; font-size:.75rem; font-weight:600; font-family:var(--fc-font); }
@media(max-width:480px){ .fc-hero{padding:36px 16px 44px;} }

/* Tool Section */
.fc-tool-section { background:var(--fc-amber-bg); padding:32px 0 48px; }
.fc-container    { max-width:1200px; margin:0 auto; padding:0 20px; }

/* Steps */
.fc-steps { display:flex; align-items:center; justify-content:center; gap:12px; flex-wrap:wrap; background:#fff; border:1px solid var(--fc-border); border-radius:50px; padding:14px 24px; margin-bottom:28px; box-shadow:var(--fc-shadow); }
.fc-step-item  { display:flex; align-items:center; gap:10px; }
.fc-step-num   { width:28px; height:28px; background:linear-gradient(135deg,var(--fc-amber-d),var(--fc-amber)); color:#fff; border-radius:50%; font-size:.75rem; font-weight:800; display:flex; align-items:center; justify-content:center; flex-shrink:0; box-shadow:0 2px 8px rgba(217,119,6,.4); }
.fc-step-text strong { display:block; font-size:.82rem; font-weight:700; color:var(--fc-text); font-family:var(--fc-font); }
.fc-step-text span   { display:block; font-size:.7rem; color:var(--fc-muted); }
.fc-step-arrow { font-size:1.1rem; color:var(--fc-amber); font-weight:700; }
@media(max-width:640px){ .fc-steps{display:none;} }

/* Grid */
.fc-grid { display:grid; grid-template-columns:380px 1fr; gap:24px; align-items:start; }
@media(max-width:960px){ .fc-grid{grid-template-columns:1fr;} }

/* Input Column */
.fc-input-col { background:var(--fc-surface); border:1px solid var(--fc-border); border-radius:var(--fc-radius-lg); overflow:hidden; box-shadow:var(--fc-shadow); position:sticky; top:80px; }
@media(max-width:960px){ .fc-input-col{position:static;} }

.fc-input-header { display:flex; align-items:center; gap:14px; padding:18px 18px 14px; border-bottom:1px solid var(--fc-border); background:linear-gradient(135deg,rgba(217,119,6,.07),rgba(245,158,11,.03)); }
.fc-input-icon  { font-size:2.2rem; flex-shrink:0; }
.fc-input-title { font-size:.95rem; font-weight:800; color:var(--fc-amber-d); font-family:var(--fc-font); }
.fc-input-sub   { font-size:.72rem; color:var(--fc-muted); }

.fc-form { padding:16px; display:flex; flex-direction:column; gap:16px; }
.fc-field { display:flex; flex-direction:column; gap:7px; }
.fc-label { font-size:.8rem; font-weight:700; color:var(--fc-text); font-family:var(--fc-font); }

/* Select */
.fc-select { width:100%; padding:10px 12px; border:1.5px solid var(--fc-border-d); border-radius:var(--fc-radius); font-size:.88rem; color:var(--fc-text); background:var(--fc-card); outline:none; font-family:var(--fc-font); cursor:pointer; transition:border-color .2s; }
.fc-select:focus { border-color:var(--fc-amber); box-shadow:0 0 0 3px rgba(217,119,6,.1); }

/* Option Button Groups */
.fc-btn-group { display:grid; grid-template-columns:repeat(2,1fr); gap:8px; }
.fc-btn-group.three { grid-template-columns:repeat(3,1fr); }
.fc-opt-btn { display:flex; flex-direction:column; align-items:center; gap:3px; padding:12px 8px; border-radius:var(--fc-radius); border:2px solid var(--fc-border); background:var(--fc-card); cursor:pointer; transition:all .2s; font-family:var(--fc-font); text-align:center; }
.fc-opt-btn:hover { border-color:var(--fc-border-d); background:#fff; transform:translateY(-2px); }
.fc-opt-btn.active { border-color:var(--fc-amber); background:rgba(217,119,6,.07); box-shadow:0 0 0 3px rgba(217,119,6,.1); }
.fc-opt-icon { font-size:1.4rem; }
.fc-opt-name { font-size:.76rem; font-weight:700; color:var(--fc-text); }
.fc-opt-sub  { font-size:.62rem; color:var(--fc-muted); }
.fc-opt-btn.active .fc-opt-name { color:var(--fc-amber-d); }

/* Calculate Button */
.fc-calc-btn { display:flex; align-items:center; justify-content:center; gap:10px; width:calc(100% - 32px); margin:4px 16px 16px; padding:16px; background:linear-gradient(135deg,var(--fc-amber-d) 0%,var(--fc-amber) 60%,var(--fc-amber-l) 100%); color:#fff; border:none; border-radius:var(--fc-radius); font-size:.95rem; font-weight:800; cursor:pointer; transition:all .25s; box-shadow:0 4px 18px rgba(217,119,6,.45); font-family:var(--fc-font); }
.fc-calc-btn:hover { transform:translateY(-2px); box-shadow:0 8px 28px rgba(217,119,6,.6); }

/* Trust */
.fc-trust { display:flex; align-items:center; justify-content:space-around; padding:12px 16px; background:var(--fc-amber-bg); border-top:1px solid var(--fc-border); }
.fc-trust-stat { display:flex; flex-direction:column; align-items:center; gap:1px; }
.fc-trust-stat span  { font-size:1.1rem; }
.fc-trust-stat b     { font-size:.78rem; font-weight:900; color:var(--fc-amber-d); }
.fc-trust-stat small { font-size:.6rem; color:var(--fc-muted); text-transform:uppercase; letter-spacing:.5px; }
.fc-trust-div { width:1px; height:28px; background:var(--fc-border-d); }

/* Result Column */
.fc-result-col { background:var(--fc-surface); border:1px solid var(--fc-border); border-radius:var(--fc-radius-lg); overflow:hidden; box-shadow:var(--fc-shadow); min-height:480px; display:flex; flex-direction:column; }

/* Placeholder */
.fc-state { flex:1; display:flex; flex-direction:column; align-items:center; justify-content:center; padding:32px 24px; text-align:center; gap:10px; }
.fc-ph-anim { position:relative; width:110px; height:110px; margin-bottom:8px; }
.fc-ph-ring { position:absolute; border-radius:50%; border:2px solid rgba(217,119,6,.18); animation:fcPulse 2.5s ease-out infinite; }
.fc-ph-ring.r1{inset:0;animation-delay:0s}
.fc-ph-ring.r2{inset:-12px;animation-delay:.7s}
.fc-ph-ring.r3{inset:-24px;animation-delay:1.4s}
@keyframes fcPulse{0%{opacity:.7;transform:scale(.85)}100%{opacity:0;transform:scale(1.3)}}
.fc-ph-center { position:absolute; inset:12px; background:linear-gradient(135deg,var(--fc-amber-d),var(--fc-amber)); border-radius:50%; display:flex; align-items:center; justify-content:center; font-size:2.4rem; box-shadow:0 6px 20px rgba(217,119,6,.4); }
.fc-state h3    { font-size:1.2rem; font-weight:800; color:var(--fc-amber-d); margin:0; font-family:var(--fc-font); }
.fc-state p     { font-size:.86rem; color:var(--fc-muted); max-width:340px; line-height:1.6; margin:0; font-family:var(--fc-font); }
.fc-state h4    { font-size:.95rem; font-weight:700; color:var(--fc-amber); margin:6px 0 0; }
.fc-ph-hi-p     { font-size:.82rem!important; }
.fc-ph-tags     { display:flex; flex-wrap:wrap; gap:6px; justify-content:center; margin-top:4px; }
.fc-ph-tags span { background:var(--fc-amber-bg); border:1px solid var(--fc-border); border-radius:20px; padding:4px 12px; font-size:.72rem; color:var(--fc-text); font-weight:500; }

/* Result Header */
.fc-res-header { padding:18px 20px 14px; border-bottom:1px solid var(--fc-border); background:linear-gradient(135deg,rgba(217,119,6,.06),rgba(245,158,11,.03)); font-family:var(--fc-font); }
.fc-rh-title  { font-size:1.3rem; font-weight:900; color:var(--fc-text); margin-bottom:6px; }
.fc-rh-tags   { display:flex; flex-wrap:wrap; gap:6px; }
.fc-rh-tag    { background:rgba(217,119,6,.1); border:1px solid rgba(217,119,6,.25); color:var(--fc-amber-d); border-radius:20px; padding:3px 12px; font-size:.72rem; font-weight:700; }

/* NPK Visual Bar — PREMIUM */
.fc-npk-bar { margin:16px 20px; font-family:var(--fc-font); }
.fc-npk-title { font-size:.7rem; font-weight:800; color:var(--fc-muted); text-transform:uppercase; letter-spacing:.8px; margin-bottom:10px; }
.fc-npk-row   { display:flex; align-items:center; gap:12px; margin-bottom:8px; }
.fc-npk-label { font-size:.8rem; font-weight:800; width:80px; flex-shrink:0; }
.fc-npk-label.N { color:#16a34a; }
.fc-npk-label.P { color:#dc2626; }
.fc-npk-label.K { color:#7c3aed; }
.fc-npk-track { flex:1; height:10px; background:#f3f4f6; border-radius:10px; overflow:hidden; }
.fc-npk-fill  { height:100%; border-radius:10px; transition:width .8s ease; }
.fc-npk-fill.N { background:linear-gradient(90deg,#16a34a,#4ade80); }
.fc-npk-fill.P { background:linear-gradient(90deg,#dc2626,#f87171); }
.fc-npk-fill.K { background:linear-gradient(90deg,#7c3aed,#a78bfa); }
.fc-npk-val   { font-size:.82rem; font-weight:800; color:var(--fc-text); width:32px; text-align:right; flex-shrink:0; }
.fc-npk-ratio { text-align:center; font-size:.78rem; font-weight:700; color:var(--fc-muted); margin-top:4px; }

/* Tabs */
.fc-res-tabs-bar { border-bottom:1px solid var(--fc-border); background:var(--fc-amber-bg); overflow-x:auto; }
.fc-res-tabs { display:flex; min-width:max-content; }
.fc-res-tab { flex:1; min-width:72px; padding:11px 10px; border:none; background:none; border-bottom:2px solid transparent; font-size:.74rem; font-weight:700; color:var(--fc-muted); cursor:pointer; transition:all .2s; white-space:nowrap; font-family:var(--fc-font); }
.fc-res-tab.active { color:var(--fc-amber-d); border-bottom-color:var(--fc-amber); background:#fff; }
.fc-res-tab:hover:not(.active) { color:var(--fc-text); background:rgba(217,119,6,.04); }
.fc-res-tab-body { padding:18px 20px; font-family:var(--fc-font); }

/* Dose Cards — Big prominent dose display */
.fc-dose-grid { display:grid; grid-template-columns:1fr 1fr; gap:12px; margin-bottom:14px; }
.fc-dose-card { border-radius:var(--fc-radius); padding:16px; text-align:center; border:1.5px solid; }
.fc-dose-card.N { background:rgba(16,163,74,.06); border-color:rgba(16,163,74,.25); }
.fc-dose-card.P { background:rgba(220,38,38,.05); border-color:rgba(220,38,38,.2); }
.fc-dose-card.K { background:rgba(124,58,237,.05); border-color:rgba(124,58,237,.2); }
.fc-dose-card.total { background:linear-gradient(135deg,rgba(217,119,6,.08),rgba(245,158,11,.04)); border-color:var(--fc-border-d); grid-column:1/-1; }
.fc-dose-elem  { font-size:.65rem; font-weight:800; text-transform:uppercase; letter-spacing:.8px; margin-bottom:4px; }
.fc-dose-card.N .fc-dose-elem { color:#15803d; }
.fc-dose-card.P .fc-dose-elem { color:#991b1b; }
.fc-dose-card.K .fc-dose-elem { color:#5b21b6; }
.fc-dose-card.total .fc-dose-elem { color:var(--fc-amber-d); }
.fc-dose-amount { font-size:1.5rem; font-weight:900; color:var(--fc-text); line-height:1; margin-bottom:3px; }
.fc-dose-unit   { font-size:.72rem; color:var(--fc-muted); }
.fc-dose-note   { font-size:.7rem; color:var(--fc-muted); margin-top:4px; }

/* Product cards */
.fc-product-list { display:flex; flex-direction:column; gap:10px; }
.fc-product-card { border-radius:var(--fc-radius); padding:14px; border:1px solid; display:flex; align-items:flex-start; gap:12px; }
.fc-product-card.organic  { background:rgba(22,163,74,.05);  border-color:rgba(22,163,74,.2); }
.fc-product-card.chemical { background:rgba(2,132,199,.05);  border-color:rgba(2,132,199,.2); }
.fc-product-icon  { font-size:1.6rem; flex-shrink:0; }
.fc-product-name  { font-size:.88rem; font-weight:800; color:var(--fc-text); margin-bottom:3px; }
.fc-product-dose  { font-size:.78rem; font-weight:700; color:var(--fc-amber-d); margin-bottom:3px; }
.fc-product-note  { font-size:.74rem; color:var(--fc-muted); line-height:1.5; }
.fc-product-avail { display:inline-block; margin-top:5px; font-size:.65rem; font-weight:700; padding:2px 8px; border-radius:10px; background:rgba(22,163,74,.1); color:#15803d; border:1px solid rgba(22,163,74,.2); }

/* Schedule table */
.fc-schedule-table { width:100%; border-collapse:collapse; font-size:.82rem; }
.fc-schedule-table th { background:var(--fc-amber-bg); color:var(--fc-amber-d); font-weight:800; font-size:.68rem; text-transform:uppercase; letter-spacing:.6px; padding:10px 12px; text-align:left; border-bottom:2px solid var(--fc-border); }
.fc-schedule-table td { padding:10px 12px; border-bottom:1px solid var(--fc-border); color:var(--fc-text); vertical-align:top; }
.fc-schedule-table tr:last-child td { border-bottom:none; }
.fc-schedule-table tr:hover td { background:rgba(217,119,6,.03); }
.fc-sched-season { font-weight:700; }

/* Tips */
.fc-tips-list { display:flex; flex-direction:column; gap:8px; }
.fc-tip-item  { display:flex; gap:10px; align-items:flex-start; padding:10px 14px; background:var(--fc-amber-bg); border:1px solid var(--fc-border); border-radius:var(--fc-radius); font-size:.85rem; color:var(--fc-text); line-height:1.5; }
.fc-tip-item::before { content:'💡'; flex-shrink:0; }

/* Warning box */
.fc-warn-box { background:rgba(220,38,38,.05); border:1px solid rgba(220,38,38,.18); border-radius:var(--fc-radius); padding:12px 14px; font-size:.82rem; color:#7f1d1d; display:flex; gap:8px; margin-top:12px; line-height:1.6; }

/* Actions */
.fc-res-actions { display:flex; gap:8px; padding:16px 20px; border-top:1px solid var(--fc-border); background:var(--fc-amber-bg); flex-wrap:wrap; }
.fc-act-wa      { background:#25d366; color:#fff; border:none; border-radius:var(--fc-radius); padding:10px 18px; font-size:.82rem; font-weight:700; cursor:pointer; transition:all .2s; font-family:var(--fc-font); }
.fc-act-wa:hover { background:#20b857; }
.fc-act-copy, .fc-act-new { background:#fff; color:var(--fc-text); border:1.5px solid var(--fc-border-d); border-radius:var(--fc-radius); padding:10px 16px; font-size:.82rem; font-weight:600; cursor:pointer; transition:all .2s; font-family:var(--fc-font); }
.fc-act-copy:hover { border-color:var(--fc-amber); color:var(--fc-amber-d); }
.fc-act-new:hover  { border-color:var(--fc-muted); }

/* SEO */
.fc-seo-section { background:#fff; padding:56px 0; border-top:1px solid var(--fc-border); content-visibility:auto; contain-intrinsic-size:0 600px; }
.fc-seo-grid { display:grid; grid-template-columns:1fr 1fr; gap:24px; }
@media(max-width:768px){ .fc-seo-grid{grid-template-columns:1fr;} }
.fc-seo-card    { border-radius:var(--fc-radius); padding:24px; }
.fc-seo-card.en { background:var(--fc-amber-bg); border:1px solid var(--fc-border); }
.fc-seo-card.hi { background:#fff8f1; border:1px solid #fed7aa; }
.fc-seo-card h2 { font-size:1.1rem; font-weight:800; color:var(--fc-amber-d); margin:0 0 10px; line-height:1.4; font-family:var(--fc-font); }
.fc-seo-card.hi h2 { color:#9a3412; }
.fc-seo-card p  { font-size:.875rem; color:#374151; line-height:1.8; margin:0; font-family:var(--fc-font); }

.pi-disclaimer { background:#fffbeb; border:1px solid #fde68a; border-radius:var(--fc-radius); padding:14px 18px; font-size:.82rem; color:#92400e; line-height:1.6; margin:20px 0 28px; }

@media(max-width:480px){
    .fc-hero        { padding:36px 16px 44px; }
    .fc-tool-section{ padding:20px 0 36px; }
    .fc-form        { padding:12px; }
    .fc-calc-btn    { margin:4px 12px 12px; width:calc(100% - 24px); }
    .fc-dose-grid   { grid-template-columns:1fr 1fr; }
    .fc-res-tab-body{ padding:14px; }
    .fc-seo-section { padding:36px 0; }
}

/* ── Category Buttons ── */
.fc-cat-btns { display:grid; grid-template-columns:repeat(3,1fr); gap:7px; }
@media(max-width:400px){ .fc-cat-btns{grid-template-columns:repeat(3,1fr);} }
.fc-cat-btn  { display:flex; flex-direction:column; align-items:center; gap:2px; padding:10px 6px; border-radius:var(--fc-radius); border:2px solid var(--fc-border); background:var(--fc-card); cursor:pointer; transition:all .2s; font-family:var(--fc-font); text-align:center; }
.fc-cat-btn:hover { border-color:var(--fc-border-d); background:#fff; transform:translateY(-2px); }
.fc-cat-btn.active { border-color:var(--fc-amber); background:rgba(180,83,9,.08); box-shadow:0 0 0 3px rgba(180,83,9,.1); }
.fc-cb-icon { font-size:1.4rem; }
.fc-cb-name { font-size:.7rem; font-weight:700; color:var(--fc-text); line-height:1.2; }
.fc-cb-hi   { font-size:.6rem; color:var(--fc-muted); }
.fc-cat-btn.active .fc-cb-name { color:var(--fc-amber-d); }

/* ── AI Field ── */
.fc-ai-badge { font-size:.65rem; font-weight:800; padding:2px 8px; border-radius:10px; background:rgba(124,58,237,.1); color:#5b21b6; border:1px solid rgba(124,58,237,.2); margin-left:4px; }
.fc-ai-wrap  { display:flex; gap:6px; }
.fc-ai-input { flex:1; padding:10px 13px; border:1.5px solid rgba(124,58,237,.3); border-radius:var(--fc-radius); font-size:.88rem; color:var(--fc-text); background:#fff; outline:none; font-family:var(--fc-font); transition:border-color .2s; }
.fc-ai-input:focus { border-color:#7c3aed; box-shadow:0 0 0 3px rgba(124,58,237,.1); }
.fc-ai-go    { display:flex; align-items:center; gap:5px; padding:10px 14px; background:linear-gradient(135deg,#5b21b6,#7c3aed); color:#fff; border:none; border-radius:var(--fc-radius); font-size:.82rem; font-weight:700; cursor:pointer; white-space:nowrap; transition:all .2s; font-family:var(--fc-font); }
.fc-ai-go:hover:not(:disabled) { background:linear-gradient(135deg,#4c1d95,#6d28d9); }
.fc-ai-go:disabled { opacity:.55; cursor:not-allowed; }
.fc-ai-note  { font-size:.68rem; color:#7c3aed; margin-top:4px; font-family:var(--fc-font); }

/* ── Selected Plant ── */
.fc-selected-plant { display:flex; align-items:center; gap:10px; padding:10px 13px; background:rgba(180,83,9,.07); border:1.5px solid var(--fc-amber); border-radius:var(--fc-radius); }