/* ── Instagram Post Resizer — CSS ── */
:root {
  --bg:#0f0f14;--bg-card:#1e1e28;--bg-surface:#18181f;
  --primary:#E1306C;--secondary:#833AB4;--accent:#F77737;
  --ig-grad:linear-gradient(135deg,#833AB4,#E1306C,#F77737);
  --text:#e8e8f0;--text-muted:#9999b8;--text-faint:#555570;
  --border:rgba(255,255,255,.08);--border-strong:rgba(255,255,255,.14);
  --radius:14px;--radius-sm:8px;
  --font:'Inter',system-ui,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
body{background:var(--bg);color:var(--text);font-family:var(--font);font-size:15px;line-height:1.6;-webkit-font-smoothing:antialiased}
a{color:var(--primary);text-decoration:none}
a:hover{text-decoration:underline}
code{font-family:monospace;font-size:.85em;background:rgba(225,48,108,.1);color:#f06090;padding:2px 6px;border-radius:4px}

/* ── Header ── */
.site-header{background:rgba(15,15,20,.9);backdrop-filter:blur(14px);border-bottom:1px solid var(--border);position:sticky;top:0;z-index:100;padding:0 24px;height:58px;display:flex;align-items:center}
.header-inner{width:100%;max-width:1200px;margin:0 auto;display:flex;align-items:center;justify-content:space-between}
.logo{display:flex;align-items:center;gap:9px;text-decoration:none}
.logo-icon{width:32px;height:32px;flex-shrink:0}
.logo-text{font-size:.97rem;font-weight:700;color:var(--text);letter-spacing:-.01em}
.main-nav{display:flex;gap:6px}
.nav-link{padding:5px 12px;border-radius:var(--radius-sm);font-size:.84rem;font-weight:500;color:var(--text-muted);text-decoration:none;transition:color .15s,background .15s}
.nav-link:hover,.nav-link.active{color:var(--text);background:rgba(255,255,255,.06)}

/* ── Layout ── */
.main-wrap{max-width:980px;margin:0 auto;padding:28px 24px 80px}
@media(max-width:640px){.main-wrap{padding:18px 14px 60px}}

/* ── Hero ── */
.tool-hero{text-align:center;padding:28px 0 22px}
.tool-badge{display:inline-flex;align-items:center;gap:5px;padding:4px 13px;background:rgba(225,48,108,.1);color:var(--primary);border-radius:20px;font-size:.73rem;font-weight:600;margin-bottom:12px;border:1px solid rgba(225,48,108,.2)}
.tool-title{font-size:clamp(1.6rem,4vw,2.2rem);font-weight:800;letter-spacing:-.02em;margin-bottom:8px}
.gradient-title{background:var(--ig-grad);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.tool-subtitle{font-size:.97rem;color:var(--text-muted);max-width:580px;margin:0 auto}

/* ── Ad slot ── */
.ad-slot{background:rgba(255,255,255,.02);border:1px dashed rgba(255,255,255,.07);border-radius:var(--radius);display:flex;align-items:center;justify-content:center;min-height:90px;font-size:.75rem;color:var(--text-faint);text-align:center;padding:12px;margin-bottom:20px}

/* ── Card ── */
.card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;margin-bottom:20px}
.card-header{padding:12px 18px;border-bottom:1px solid var(--border);background:rgba(255,255,255,.02);display:flex;align-items:center;gap:8px}
.card-icon{width:28px;height:28px;border-radius:7px;background:rgba(225,48,108,.1);display:flex;align-items:center;justify-content:center;flex-shrink:0}
.card-icon svg{width:13px;height:13px;color:var(--primary)}
.card-title{font-size:.79rem;font-weight:700;text-transform:uppercase;letter-spacing:.07em;color:var(--text-faint)}

/* ── Upload zone ── */
.upload-zone{border:2px dashed var(--border-strong);border-radius:var(--radius);padding:32px 20px;text-align:center;cursor:pointer;transition:border-color .2s,background .2s;margin:18px}
.upload-zone:hover,.upload-zone.drag-over{border-color:var(--primary);background:rgba(225,48,108,.05)}
.upload-icon{width:48px;height:48px;margin:0 auto 12px;background:var(--ig-grad);border-radius:50%;display:flex;align-items:center;justify-content:center}
.upload-icon svg{width:22px;height:22px;color:#fff}
.upload-title{font-size:.95rem;font-weight:700;margin-bottom:4px}
.upload-sub{font-size:.8rem;color:var(--text-muted)}
.upload-btn{display:inline-block;margin-top:14px;padding:9px 22px;border-radius:var(--radius-sm);background:var(--ig-grad);color:#fff;font-weight:700;font-size:.88rem;cursor:pointer;border:none}

/* ── Tool panel: left + right ── */
.tool-panel{display:grid;grid-template-columns:300px 1fr;gap:20px;align-items:start}
@media(max-width:760px){.tool-panel{grid-template-columns:1fr}}

/* ── Left panel ── */
.panel-left{display:flex;flex-direction:column;gap:16px}
.settings-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden}
.settings-head{padding:11px 16px;border-bottom:1px solid var(--border);font-size:.79rem;font-weight:700;text-transform:uppercase;letter-spacing:.07em;color:var(--text-faint);background:rgba(255,255,255,.02)}
.settings-body{padding:16px}

/* ── Preset grid ── */
.preset-grid{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.preset-btn{background:var(--bg-surface);border:1px solid var(--border);border-radius:var(--radius-sm);padding:10px 10px 8px;cursor:pointer;transition:border-color .15s,background .15s;text-align:left}
.preset-btn:hover{border-color:rgba(225,48,108,.4);background:rgba(225,48,108,.04)}
.preset-btn.active{border-color:var(--primary);background:rgba(225,48,108,.08)}
.preset-label{font-size:.82rem;font-weight:700;color:var(--text)}
.preset-sub{font-size:.7rem;color:var(--text-faint)}
.preset-size{font-size:.65rem;color:var(--text-faint);margin-top:2px;font-family:monospace}

/* ── Mode tabs ── */
.mode-tabs{display:flex;background:var(--bg-surface);border-radius:var(--radius-sm);padding:3px;gap:2px}
.mode-tab{flex:1;padding:7px 8px;border-radius:6px;border:none;background:transparent;color:var(--text-muted);font-size:.8rem;font-weight:600;cursor:pointer;transition:background .15s,color .15s;text-align:center}
.mode-tab.active{background:var(--bg-card);color:var(--text);box-shadow:0 1px 3px rgba(0,0,0,.3)}

/* ── Setting rows ── */
.setting-row{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:12px}
.setting-row:last-child{margin-bottom:0}
.setting-label{font-size:.82rem;color:var(--text-muted);flex-shrink:0}
.setting-select{background:var(--bg-surface);border:1px solid var(--border);border-radius:var(--radius-sm);padding:6px 10px;color:var(--text);font-size:.82rem;outline:none;cursor:pointer}
.setting-select:focus{border-color:var(--primary)}
input[type="color"]{-webkit-appearance:none;width:36px;height:28px;border:1px solid var(--border);border-radius:6px;background:none;cursor:pointer;padding:1px;outline:none}
input[type="color"]::-webkit-color-swatch-wrapper{padding:0;border-radius:4px}
input[type="color"]::-webkit-color-swatch{border:none;border-radius:4px}
input[type="range"]{-webkit-appearance:none;width:100%;height:4px;border-radius:2px;background:var(--border-strong);outline:none;cursor:pointer}
input[type="range"]::-webkit-slider-thumb{-webkit-appearance:none;width:16px;height:16px;border-radius:50%;background:var(--primary);cursor:pointer;box-shadow:0 0 0 2px rgba(225,48,108,.3)}
.quality-val{font-size:.78rem;color:var(--text-muted);min-width:30px;text-align:right}

/* ── Download btn ── */
.btn-download{width:100%;padding:13px;border-radius:var(--radius-sm);background:var(--ig-grad);color:#fff;font-weight:800;font-size:.95rem;border:none;cursor:pointer;display:flex;align-items:center;justify-content:center;gap:8px;transition:opacity .15s}
.btn-download:hover{opacity:.88}
.btn-download svg{width:16px;height:16px}

/* ── Right panel: canvas ── */
.panel-right{display:flex;flex-direction:column;gap:14px}
.canvas-wrap{position:relative;background:repeating-conic-gradient(#1a1a24 0% 25%,#151520 0% 50%) 0 0/20px 20px;border-radius:var(--radius);overflow:hidden;display:flex;align-items:center;justify-content:center;padding:16px}
.canvas-inner{position:relative;max-width:100%;max-height:520px}
.canvas-inner canvas{width:100%;height:auto;display:block;border-radius:4px}
.canvas-inner.cursor-grab{cursor:grab}
.canvas-inner.cursor-grab:active,.canvas-inner.cursor-grabbing{cursor:grabbing}
.canvas-overlay-hint{position:absolute;bottom:8px;left:50%;transform:translateX(-50%);background:rgba(0,0,0,.7);color:rgba(255,255,255,.6);font-size:.68rem;padding:3px 10px;border-radius:20px;white-space:nowrap;pointer-events:none;transition:opacity .3s}

/* Zoom bar */
.zoom-bar{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-sm);padding:12px 16px;display:flex;align-items:center;gap:12px}
.zoom-label{font-size:.78rem;color:var(--text-muted);flex-shrink:0}
.zoom-val{font-size:.78rem;color:var(--text-muted);min-width:36px;text-align:right}

/* Size info bar */
.size-info{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-sm);padding:10px 16px;display:flex;align-items:center;justify-content:space-between;gap:10px;flex-wrap:wrap}
.size-info-item{text-align:center}
.size-info-val{font-size:.95rem;font-weight:700;color:var(--text)}
.size-info-key{font-size:.65rem;color:var(--text-faint);text-transform:uppercase;letter-spacing:.06em}

/* ── Info sections ── */
.page-section{padding:40px 0 0}
.section-head{text-align:center;margin-bottom:28px}
.section-title{font-size:clamp(1.3rem,3vw,1.7rem);font-weight:800;letter-spacing:-.02em}
.section-desc{font-size:.93rem;color:var(--text-muted);margin-top:6px}
.section-divider{height:1px;background:var(--border);margin:40px 0 0}

.features-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:14px}
.feature-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:18px}
.feature-icon{font-size:1.5rem;margin-bottom:8px}
.feature-title{font-size:.9rem;font-weight:700;margin-bottom:4px}
.feature-desc{font-size:.8rem;color:var(--text-muted);line-height:1.5}

.steps-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:14px}
.step-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:18px;display:flex;gap:14px;align-items:flex-start}
.step-number{width:32px;height:32px;border-radius:50%;background:rgba(225,48,108,.15);color:var(--primary);font-weight:800;font-size:.9rem;display:flex;align-items:center;justify-content:center;flex-shrink:0}
.step-title{font-size:.9rem;font-weight:700;margin-bottom:4px}
.step-desc{font-size:.8rem;color:var(--text-muted);line-height:1.5}

.logic-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:14px}
.logic-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:18px}
.logic-title{font-size:.88rem;font-weight:700;margin-bottom:6px}
.logic-desc{font-size:.8rem;color:var(--text-muted);line-height:1.55}

/* Size reference table */
.size-table{width:100%;border-collapse:collapse;font-size:.84rem;background:var(--bg-card);border-radius:var(--radius);overflow:hidden}
.size-table th{background:rgba(255,255,255,.04);color:var(--text-faint);font-weight:700;padding:10px 14px;text-align:left;border-bottom:1px solid var(--border);font-size:.76rem;text-transform:uppercase;letter-spacing:.06em}
.size-table td{padding:10px 14px;border-bottom:1px solid rgba(255,255,255,.04);color:var(--text-muted)}
.size-table tr:last-child td{border-bottom:none}
.size-table td:first-child{font-weight:700;color:var(--text)}
.size-badge{display:inline-block;padding:2px 8px;border-radius:4px;font-size:.68rem;font-weight:700;background:rgba(225,48,108,.12);color:var(--primary)}

/* ── FAQ ── */
.faq-list{display:flex;flex-direction:column;gap:10px}
.faq-item{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-sm);overflow:hidden}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;padding:14px 18px;font-size:.9rem;font-weight:600;background:none;border:none;color:var(--text);cursor:pointer;text-align:left;gap:10px}
.faq-icon{font-size:1.2rem;color:var(--text-faint);flex-shrink:0;transition:transform .2s}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-item.open .faq-a{max-height:400px}
.faq-item.open .faq-icon{transform:rotate(45deg)}
.faq-a p{padding:0 18px 16px;font-size:.85rem;color:var(--text-muted);line-height:1.65}

/* ── Related ── */
.related-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:14px}
.related-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:16px;display:flex;flex-direction:column;gap:6px;text-decoration:none;transition:border-color .15s}
.related-card:hover{border-color:var(--primary);text-decoration:none}
.related-icon{width:36px;height:36px;border-radius:9px;display:flex;align-items:center;justify-content:center;margin-bottom:4px}
.related-icon svg{width:17px;height:17px;color:#fff}
.related-name{font-size:.88rem;font-weight:700;color:var(--text)}
.related-desc{font-size:.77rem;color:var(--text-muted);line-height:1.4}
.related-link{font-size:.75rem;color:var(--primary);font-weight:600;margin-top:auto}

.blog-related-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:14px}
.blog-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:16px;display:flex;flex-direction:column;gap:6px;text-decoration:none;transition:border-color .15s}
.blog-card:hover{border-color:var(--primary);text-decoration:none}
.blog-tag-sm{font-size:.7rem;font-weight:700;color:var(--primary)}
.blog-title-sm{font-size:.85rem;font-weight:600;color:var(--text);line-height:1.4}
.blog-link{font-size:.75rem;color:var(--primary);font-weight:600;margin-top:auto}

/* ── Footer ── */
.site-footer{border-top:1px solid var(--border);padding:40px 24px 28px;margin-top:60px}
.footer-grid{max-width:980px;margin:0 auto;display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:32px;margin-bottom:28px}
@media(max-width:768px){.footer-grid{grid-template-columns:1fr 1fr}}
@media(max-width:480px){.footer-grid{grid-template-columns:1fr}}
.footer-brand-text{font-size:.82rem;color:var(--text-faint);margin-top:8px;line-height:1.5}
.footer-heading{font-size:.75rem;font-weight:700;text-transform:uppercase;letter-spacing:.08em;color:var(--text-faint);margin-bottom:10px}
.footer-links{display:flex;flex-direction:column;gap:7px}
.footer-links a{font-size:.83rem;color:var(--text-muted)}
.footer-links a:hover{color:var(--text)}
.footer-bottom{max-width:980px;margin:0 auto;display:flex;justify-content:space-between;align-items:center;font-size:.75rem;color:var(--text-faint);flex-wrap:wrap;gap:8px;padding-top:16px;border-top:1px solid var(--border)}

/* ── Toast ── */
.toast{position:fixed;bottom:24px;left:50%;transform:translateX(-50%) translateY(12px);background:linear-gradient(135deg,#833AB4,#E1306C);color:#fff;padding:8px 18px;border-radius:20px;font-size:.82rem;font-weight:600;opacity:0;transition:opacity .2s,transform .2s;pointer-events:none;z-index:999;white-space:nowrap}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}