/* ============================================================
   ClearSign — Shared Design System
   ============================================================ */
:root {
  --bg:#FFFFFF;
  --s1:#F7F9FC;
  --s2:#EEF2F9;
  --s3:#E3E9F3;
  --bdr:#DCE3EF;
  --bdr2:#C5CFE0;
  --tx:#0F1729;
  --tx2:#384257;
  --tx3:#6B7A99;
  --blue:#2563EB;
  --blue2:#3B82F6;
  --blue3:#1D4ED8;
  --blueg:rgba(37,99,235,0.08);
  --bluegl:rgba(37,99,235,0.15);
  --navy:#0F1729;
  --teal:#059669;
  --tealg:rgba(5,150,105,0.08);
  --red:#DC2626;
  --redg:rgba(220,38,38,0.07);
  --amber:#D97706;
  --amberg:rgba(217,119,6,0.07);
  --purple:#7C3AED;
  --purpleg:rgba(124,58,237,0.07);
  --r:14px;
  --r2:22px;
  --shadow:0 1px 3px rgba(15,23,41,0.06),0 4px 12px rgba(15,23,41,0.04);
  --shadow2:0 4px 16px rgba(15,23,41,0.08),0 12px 40px rgba(15,23,41,0.06);
  --shadow3:0 8px 30px rgba(37,99,235,0.12),0 20px 60px rgba(15,23,41,0.08);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:'Outfit',sans-serif;background:var(--bg);color:var(--tx);overflow-x:hidden;-webkit-font-smoothing:antialiased}

/* ICONS */
.ic{display:inline-flex;align-items:center;justify-content:center;flex-shrink:0}
.ic svg{fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}

/* NAV */
nav{position:fixed;top:0;left:0;right:0;z-index:500;padding:12px 28px;display:flex;align-items:center;justify-content:space-between;
  background:rgba(255,255,255,.82);backdrop-filter:blur(24px) saturate(1.4);border-bottom:1px solid var(--bdr)}
.logo{display:flex;align-items:center;gap:10px;text-decoration:none}
.logo-mark{width:36px;height:36px;background:var(--blue);border-radius:10px;display:flex;align-items:center;justify-content:center;position:relative;overflow:hidden}
.logo-mark svg{width:20px;height:20px;fill:none;stroke:#fff;stroke-width:2.2;stroke-linecap:round;stroke-linejoin:round}
.logo-mark::after{content:'';position:absolute;top:-50%;left:-50%;width:200%;height:200%;background:linear-gradient(135deg,transparent 40%,rgba(255,255,255,.25) 50%,transparent 60%);animation:shine 3s ease-in-out infinite}
@keyframes shine{0%,100%{transform:translateX(-100%) rotate(25deg)}50%{transform:translateX(100%) rotate(25deg)}}
.logo-name{font-family:'Instrument Serif',serif;font-size:1.35rem;color:var(--tx)}
.nav-r{display:flex;gap:6px;align-items:center}
.nav-a{padding:8px 16px;color:var(--tx3);text-decoration:none;font-size:.88rem;font-weight:500;border-radius:8px;transition:.2s}
.nav-a:hover{color:var(--tx);background:var(--s1)}
.nav-a.active{color:var(--blue);background:var(--blueg)}
.nav-cta{padding:9px 22px;background:var(--blue);color:#fff;border:none;border-radius:10px;font-family:inherit;font-size:.88rem;font-weight:600;cursor:pointer;transition:.25s;position:relative;overflow:hidden}
.nav-cta:hover{background:var(--blue3);box-shadow:0 4px 20px var(--bluegl);transform:translateY(-1px)}

/* NAV AUTH ELEMENTS */
.nav-auth{display:flex;align-items:center;gap:10px}
.credit-badge{display:inline-flex;align-items:center;gap:5px;padding:5px 12px;background:var(--tealg);color:var(--teal);border-radius:100px;font-size:.78rem;font-weight:700}
.credit-badge svg{width:14px;height:14px}
.nav-avatar{width:32px;height:32px;border-radius:50%;background:var(--blue);display:flex;align-items:center;justify-content:center;font-size:.78rem;font-weight:700;color:#fff;cursor:pointer;overflow:hidden;border:2px solid var(--bdr);transition:.2s}
.nav-avatar:hover{border-color:var(--blue);transform:scale(1.05)}
.nav-avatar img{width:100%;height:100%;object-fit:cover}
.nav-dropdown{position:absolute;top:56px;right:16px;background:#fff;border:1px solid var(--bdr);border-radius:14px;box-shadow:var(--shadow2);padding:8px;min-width:200px;display:none;z-index:600}
.nav-dropdown.show{display:block;animation:dropIn .2s ease}
@keyframes dropIn{from{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:translateY(0)}}
.nav-dd-item{display:flex;align-items:center;gap:8px;padding:10px 14px;border-radius:10px;font-size:.86rem;color:var(--tx2);cursor:pointer;transition:.15s;border:none;background:none;width:100%;font-family:inherit;text-decoration:none}
.nav-dd-item:hover{background:var(--s1);color:var(--tx)}
.nav-dd-item svg{width:16px;height:16px;stroke:currentColor;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.nav-dd-divider{height:1px;background:var(--bdr);margin:4px 8px}
.nav-dd-plan{padding:8px 14px;font-size:.72rem;color:var(--tx3);text-transform:uppercase;letter-spacing:.05em;font-weight:600}

/* AUTH MODAL */
.auth-overlay{position:fixed;inset:0;background:rgba(15,23,41,0.5);backdrop-filter:blur(4px);z-index:1000;display:none;align-items:center;justify-content:center}
.auth-overlay.show{display:flex;animation:fadeIn .2s ease}
@keyframes fadeIn{from{opacity:0}to{opacity:1}}
.auth-card{background:#fff;border:1px solid var(--bdr);border-radius:var(--r2);box-shadow:var(--shadow3);padding:36px 32px;width:420px;max-width:92vw;max-height:90vh;overflow-y:auto;animation:modalIn .3s cubic-bezier(.16,1,.3,1)}
@keyframes modalIn{from{opacity:0;transform:scale(.95) translateY(12px)}to{opacity:1;transform:scale(1) translateY(0)}}
.auth-close{position:absolute;top:16px;right:16px;background:none;border:none;cursor:pointer;color:var(--tx3);padding:4px;border-radius:6px;transition:.2s}
.auth-close:hover{background:var(--s1);color:var(--tx)}
.auth-card h2{font-family:'Instrument Serif',serif;font-size:1.6rem;color:var(--navy);margin-bottom:6px;text-align:center}
.auth-card .auth-sub{color:var(--tx3);font-size:.9rem;text-align:center;margin-bottom:24px}
.auth-tabs{display:flex;background:var(--s1);border:1px solid var(--bdr);border-radius:12px;padding:3px;margin-bottom:24px}
.auth-tab{flex:1;padding:10px;text-align:center;font-size:.86rem;font-weight:600;color:var(--tx3);border:none;background:none;cursor:pointer;border-radius:10px;transition:.25s;font-family:inherit}
.auth-tab.on{background:#fff;color:var(--blue);box-shadow:var(--shadow)}

.auth-google{width:100%;padding:12px;border:1.5px solid var(--bdr);border-radius:11px;background:#fff;cursor:pointer;display:flex;align-items:center;justify-content:center;gap:10px;font-family:inherit;font-size:.9rem;font-weight:600;color:var(--tx);transition:.25s;margin-bottom:20px}
.auth-google:hover{border-color:var(--tx3);box-shadow:var(--shadow);transform:translateY(-1px)}
.auth-google svg{width:20px;height:20px}

.auth-divider{display:flex;align-items:center;gap:12px;margin-bottom:20px;color:var(--tx3);font-size:.78rem}
.auth-divider::before,.auth-divider::after{content:'';flex:1;height:1px;background:var(--bdr)}

.auth-field{margin-bottom:14px}
.auth-field label{display:block;font-size:.82rem;font-weight:600;color:var(--tx2);margin-bottom:5px}
.auth-field input{width:100%;padding:11px 14px;background:var(--s1);border:1.5px solid var(--bdr);border-radius:10px;font-family:inherit;font-size:.9rem;color:var(--tx);outline:none;transition:.3s}
.auth-field input:focus{border-color:var(--blue);box-shadow:0 0 0 4px var(--blueg);background:#fff}
.auth-field input::placeholder{color:var(--tx3);opacity:.5}

.auth-submit{width:100%;padding:13px;background:var(--blue);color:#fff;border:none;border-radius:11px;font-family:inherit;font-size:.95rem;font-weight:700;cursor:pointer;transition:.3s;margin-top:8px}
.auth-submit:hover{background:var(--blue3);box-shadow:0 6px 20px var(--bluegl);transform:translateY(-1px)}
.auth-submit:disabled{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none}

.auth-error{background:var(--redg);color:var(--red);padding:10px 14px;border-radius:10px;font-size:.84rem;margin-bottom:14px;display:none;line-height:1.5}
.auth-error.show{display:block}

.auth-footer{text-align:center;margin-top:16px;font-size:.82rem;color:var(--tx3)}
.auth-footer a{color:var(--blue);cursor:pointer;font-weight:600;text-decoration:none}

/* NO CREDITS MODAL */
.credits-modal-overlay{position:fixed;inset:0;background:rgba(15,23,41,0.5);backdrop-filter:blur(4px);z-index:1000;display:none;align-items:center;justify-content:center}
.credits-modal-overlay.show{display:flex;animation:fadeIn .2s ease}
.credits-modal{background:#fff;border-radius:var(--r2);box-shadow:var(--shadow3);padding:36px;width:520px;max-width:92vw;text-align:center;animation:modalIn .3s cubic-bezier(.16,1,.3,1)}
.credits-modal h2{font-family:'Instrument Serif',serif;font-size:1.5rem;color:var(--navy);margin-bottom:8px}
.credits-modal p{color:var(--tx3);font-size:.92rem;line-height:1.7;margin-bottom:20px}
.credits-modal .section-label{font-size:.78rem;font-weight:700;text-transform:uppercase;letter-spacing:.08em;color:var(--tx3);margin-bottom:12px}
.credit-packs{display:flex;gap:10px;margin-bottom:16px}
.credit-pack{flex:1;border:1.5px solid var(--bdr);border-radius:14px;padding:16px 10px;cursor:pointer;transition:.3s;background:#fff;text-align:center;position:relative}
.credit-pack:hover{border-color:var(--blue);transform:translateY(-2px);box-shadow:0 4px 16px rgba(37,99,235,.1)}
.credit-pack.selected{border-color:var(--blue);background:var(--blueg);box-shadow:0 0 0 2px var(--blue)}
.credit-pack .pack-amount{font-size:1.6rem;font-weight:800;color:var(--navy);line-height:1}
.credit-pack .pack-label{font-size:.72rem;color:var(--tx3);margin-top:2px;font-weight:600}
.credit-pack .pack-price{font-size:1rem;font-weight:700;color:var(--blue);margin-top:8px}
.credit-pack .pack-per{font-size:.7rem;color:var(--tx3);margin-top:2px}
.credit-pack .pack-save{position:absolute;top:-9px;left:50%;transform:translateX(-50%);padding:2px 10px;background:var(--teal);color:#fff;border-radius:100px;font-size:.65rem;font-weight:700;text-transform:uppercase;letter-spacing:.04em;white-space:nowrap}
.credits-modal-divider{display:flex;align-items:center;gap:12px;margin:16px 0;color:var(--tx3);font-size:.78rem;font-weight:600}
.credits-modal-divider::before,.credits-modal-divider::after{content:'';flex:1;height:1px;background:var(--bdr)}
.credits-modal-actions{display:flex;gap:10px;justify-content:center;flex-wrap:wrap}
.credits-modal-actions button{padding:12px 24px;border-radius:11px;font-family:inherit;font-size:.9rem;font-weight:700;cursor:pointer;transition:.3s;border:none;width:100%}
.credits-modal-actions .btn-primary{background:var(--blue);color:#fff}
.credits-modal-actions .btn-primary:hover{background:var(--blue3);box-shadow:0 4px 20px var(--bluegl);transform:translateY(-1px)}
.credits-modal-actions .btn-secondary{background:var(--s1);color:var(--tx2);border:1.5px solid var(--bdr)}
.credits-modal-actions .btn-secondary:hover{border-color:var(--blue);color:var(--blue)}
.credits-modal-actions .btn-primary:disabled{opacity:.6;cursor:not-allowed;transform:none}
@media(max-width:480px){.credit-packs{flex-direction:column}}

/* TOAST */
.toast{position:fixed;bottom:30px;left:50%;transform:translateX(-50%) translateY(80px);background:var(--navy);color:#fff;padding:14px 28px;border-radius:14px;font-size:.9rem;font-weight:600;display:flex;align-items:center;gap:10px;z-index:900;box-shadow:var(--shadow2);transition:transform .4s cubic-bezier(.16,1,.3,1),opacity .4s;opacity:0;pointer-events:none}
.toast.show{transform:translateX(-50%) translateY(0);opacity:1;pointer-events:auto}
.toast .ic{color:var(--teal)}

/* FOOTER */
footer{position:relative;z-index:1;border-top:1px solid var(--bdr);padding:36px 24px;text-align:center;color:var(--tx3);font-size:.82rem}
footer a{color:var(--blue);text-decoration:none;font-weight:500}

/* GRID BG */
.grid-bg{position:fixed;inset:0;pointer-events:none;z-index:0;
  background-image:linear-gradient(var(--bdr) .5px,transparent .5px),linear-gradient(90deg,var(--bdr) .5px,transparent .5px);
  background-size:60px 60px;opacity:.35}

/* PRELOADER */
.preloader{position:fixed;inset:0;background:#fff;z-index:9999;display:flex;align-items:center;justify-content:center;transition:opacity .5s,visibility .5s}
.preloader.gone{opacity:0;visibility:hidden}
.pre-spin{width:40px;height:40px;border:3px solid var(--s3);border-top-color:var(--blue);border-radius:50%;animation:spin .7s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}

/* RESULTS (shared for dashboard detail view) */
.res{display:none;margin-top:26px}
.res.show{display:block;animation:resIn .5s cubic-bezier(.16,1,.3,1)}
@keyframes resIn{from{opacity:0;transform:translateY(24px)}to{opacity:1;transform:translateY(0)}}

.rh{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px;padding-bottom:14px;border-bottom:1px solid var(--bdr)}
.rh h3{font-family:'Instrument Serif',serif;font-size:1.35rem;color:var(--navy)}
.rpill{padding:5px 14px;border-radius:100px;font-size:.72rem;font-weight:700;text-transform:uppercase;letter-spacing:.06em;animation:popIn .35s .15s cubic-bezier(.16,1,.3,1) both}
@keyframes popIn{from{transform:scale(0)}to{transform:scale(1)}}
.rpill.rlow{background:var(--tealg);color:var(--teal)}
.rpill.rmed{background:var(--amberg);color:var(--amber)}
.rpill.rhi{background:var(--redg);color:var(--red)}

.rb{margin-bottom:26px}
.rl{display:flex;align-items:center;gap:7px;font-size:.78rem;font-weight:700;text-transform:uppercase;letter-spacing:.07em;color:var(--tx3);margin-bottom:12px}
.rl .ic{color:var(--blue)}

.sbox{background:var(--s1);border-radius:var(--r);padding:20px;line-height:1.85;font-size:.93rem;color:var(--tx2);border-left:3px solid var(--blue)}

.fl{display:flex;flex-direction:column;gap:10px}
.fi{display:flex;gap:12px;align-items:flex-start;padding:16px;background:var(--s1);border-radius:var(--r);border-left:3px solid var(--red);transition:.25s;cursor:default}
.fi:hover{transform:translateX(4px);background:var(--s2)}
.fi.fw{border-left-color:var(--amber)}
.fi .ficon{flex-shrink:0;margin-top:2px}
.fi .ficon.danger{color:var(--red)}
.fi .ficon.warn{color:var(--amber)}
.fi h4{font-size:.9rem;font-weight:700;margin-bottom:2px;color:var(--tx)}
.fi p{font-size:.84rem;color:var(--tx3);line-height:1.6}

.tgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:10px}
.tm{padding:16px;background:var(--s1);border-radius:var(--r);border-left:3px solid var(--purple);transition:.25s;cursor:default}
.tm:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
.tm h4{font-size:.86rem;font-weight:700;color:var(--purple);margin-bottom:4px}
.tm p{font-size:.82rem;color:var(--tx3);line-height:1.55}

.ql{display:flex;flex-direction:column;gap:8px}
.qi{display:flex;gap:10px;align-items:flex-start;padding:14px 16px;background:var(--s1);border-radius:var(--r);font-size:.88rem;line-height:1.6;border-left:3px solid var(--teal);transition:.25s;cursor:default}
.qi:hover{transform:translateX(4px);background:var(--s2)}
.qi .qic{color:var(--teal);flex-shrink:0}

/* EXPLAIN */
.ebox{background:var(--s1);border-radius:var(--r);padding:24px;line-height:1.9;font-size:.93rem;color:var(--tx2);border-left:3px solid var(--teal)}
.ebox h3{font-family:'Instrument Serif',serif;font-size:1.1rem;color:var(--tx);margin:20px 0 8px}
.ebox h3:first-child{margin-top:0}
.ebox ul{margin:8px 0 8px 20px;color:var(--tx3)}
.ebox ul li{margin-bottom:4px;line-height:1.7}
.ebox .hl{display:inline-block;background:var(--purpleg);color:var(--purple);padding:1px 8px;border-radius:5px;font-weight:600;font-size:.84rem}

/* RESPONSIVE */
@media(max-width:768px){
  .nav-a{display:none}
  .auth-card{padding:28px 20px}
  .tgrid{grid-template-columns:1fr}
}
@media(max-width:480px){.tgrid{grid-template-columns:1fr}}