/* KeyFlow Modern UI Phase 3 — branded login (login_section.php). Self-contained: the login page loads only this sheet.
   Always the dark KeyFlow brand experience. The approved Automotive Blueprint artwork is decorative; the form works with the
   navy / cyan fallback. Feature highlights and quote remain HTML, separate from the image. */

@font-face{font-family:"Plus Jakarta Sans";font-style:normal;font-weight:200 800;font-display:swap;src:url("assets/fonts/plus-jakarta-sans/plus-jakarta-sans-latin-wght-normal.woff2") format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}

:root{
  /* Brand (the existing KeyFlow navy and blue / cyan; red only for errors) */
  --kfl-ink:#e8f2fb;--kfl-muted:#93aabb;--kfl-faint:#5f7889;
  --kfl-navy-0:#040a11;--kfl-navy-1:#07111c;--kfl-navy-2:#0b1a29;
  --kfl-brand:#0878ee;--kfl-brand-2:#11b9ff;--kfl-cyan:#55d8ff;
  --kfl-line:rgba(143,211,255,.16);--kfl-line-strong:rgba(143,211,255,.32);
  --kfl-field:rgba(255,255,255,.045);--kfl-field-focus:rgba(255,255,255,.07);
  --kfl-danger-bg:rgba(255,101,114,.12);--kfl-danger-line:rgba(255,101,114,.38);--kfl-danger-fg:#ffb3b9;
  --kfl-focus:0 0 0 3px rgba(17,185,255,.45);
  --kfl-radius:16px;--kfl-radius-sm:10px;--kfl-touch:44px;
  --kfl-ease:cubic-bezier(.16,1,.3,1);
  /* Keep the brightest texture details at the edges and the form area quiet. */
  --kfl-focus-desktop:50% 50%;--kfl-focus-tablet:50% 50%;--kfl-focus-mobile:50% 50%;
}
*,*::before,*::after{box-sizing:border-box}
html.kfl-root{background:var(--kfl-navy-0);color-scheme:dark;-webkit-text-size-adjust:100%}
body.kfl{position:relative;width:100%;max-width:1384px;min-height:100vh;min-height:100svh;margin:0 auto;padding:max(20px,env(safe-area-inset-top)) max(20px,env(safe-area-inset-right)) max(16px,env(safe-area-inset-bottom)) max(20px,env(safe-area-inset-left));
  display:grid;grid-template-columns:minmax(0,1fr);grid-template-rows:auto auto auto auto 1fr auto;align-content:stretch;gap:0;
  background:var(--kfl-navy-0);color:var(--kfl-ink);font:15px/1.5 "Plus Jakarta Sans",system-ui,-apple-system,"Segoe UI",sans-serif;overflow-x:hidden}

/* ---------------------------------------------------------------- Scene: artwork slot + branded fallback */
.kfl-scene{position:fixed;inset:0;z-index:0;overflow:hidden;pointer-events:none;
  background:
    radial-gradient(60% 50% at 18% 22%,rgba(17,185,255,.20),transparent 70%),
    radial-gradient(45% 45% at 82% 78%,rgba(8,120,238,.18),transparent 70%),
    radial-gradient(120% 90% at 50% 120%,rgba(85,216,255,.08),transparent 60%),
    linear-gradient(160deg,var(--kfl-navy-2) 0%,var(--kfl-navy-1) 45%,var(--kfl-navy-0) 100%)}
.kfl-art{position:absolute;inset:0;display:block}
.kfl-art img{display:block;width:100%;height:100%;object-fit:cover;object-position:var(--kfl-focus-desktop)}
.kfl-art img.kfl-art-failed{display:none}
/* Readability shading over the artwork (card side on wide screens, lower area on phones) */
.kfl-shade{position:absolute;inset:0;background:linear-gradient(90deg,rgba(4,10,17,.60) 0%,rgba(4,10,17,.34) 42%,rgba(4,10,17,.55) 72%,rgba(4,10,17,.68) 100%),linear-gradient(180deg,rgba(4,10,17,.18) 0%,transparent 32%,transparent 70%,rgba(4,10,17,.36) 100%)}
body.kfl:not(.kfl-has-art) .kfl-shade{background:linear-gradient(180deg,transparent 60%,rgba(4,10,17,.5) 100%)}

/* ---------------------------------------------------------------- Brand */
.kfl-brand{position:relative;z-index:1;grid-row:1;min-width:0;text-align:center}
.kfl-logo{display:block;width:min(94%,390px);height:auto;margin:0 auto;aspect-ratio:720/240}
.kfl-descriptor{margin:10px 0 0;color:var(--kfl-cyan);font-size:12px;font-weight:700;letter-spacing:.18em;text-transform:uppercase}
body.kfl-has-art :is(.kfl-descriptor,.kfl-feature-text,.kfl-quote){text-shadow:0 1px 3px rgba(0,0,0,.75)}

/* ---------------------------------------------------------------- Feature highlights + quote (information, not links) */
.kfl-intro{position:relative;z-index:1;grid-row:2;min-width:0}
.kfl-hero{max-width:620px}
.kfl-hero h2{margin:0;color:var(--kfl-ink);font-size:clamp(32px,3.1vw,44px);font-weight:750;line-height:1.13;letter-spacing:-.035em}
.kfl-hero h2 span{display:block;font-weight:750;white-space:nowrap}
.kfl-hero h2 span:last-child{color:var(--kfl-cyan)}
.kfl-hero p{max-width:560px;margin:14px 0 0;color:#b8cbd9;font-size:15px;line-height:1.55}
.kfl-features{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin:0;padding:0;list-style:none}
.kfl-feature{display:flex;flex-direction:column;align-items:flex-start;gap:13px;min-width:0;min-height:140px;padding:16px;border:1px solid rgba(65,164,230,.31);border-radius:14px;background:rgba(6,25,44,.79);box-shadow:0 7px 24px rgba(0,8,21,.12)}
.kfl-feature-icon{display:grid;place-items:center;flex:none;width:46px;height:46px;border:1px solid rgba(85,216,255,.35);border-radius:11px;background:rgba(13,56,82,.48);color:var(--kfl-cyan)}
.kfl-feature-icon .kfl-i{width:24px;height:24px;stroke-width:1.7}
.kfl-feature-text{display:grid;gap:3px;min-width:0}
.kfl-feature-text strong{color:var(--kfl-ink);font-size:17px;font-weight:650;line-height:1.25}
.kfl-feature-text small{color:#b8cbd9;font-size:13px;line-height:1.35}
.kfl-quote{position:relative;z-index:1;grid-row:4;width:100%;max-width:480px;margin:28px auto 0;padding:3px 0 3px 16px;border-left:2px solid var(--kfl-cyan);text-align:left}
.kfl-quote p{margin:0;color:var(--kfl-ink);font-size:16px;font-weight:600;line-height:1.45}

/* ---------------------------------------------------------------- Card */
.kfl-main{position:relative;z-index:1;grid-row:3;display:flex;align-items:flex-start;justify-content:center;min-width:0}
.kfl-card{display:flex;flex-direction:column;width:100%;max-width:480px;padding:28px 26px 26px;border:1px solid rgba(116,185,228,.24);border-radius:20px;background:rgba(7,25,44,.96);box-shadow:0 24px 64px rgba(0,8,20,.38)}
body.kfl-has-art .kfl-card{background:rgba(7,25,44,.96)}
.kfl-card-top{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:16px}
.kfl-eyebrow{margin:0;color:var(--kfl-cyan);font-size:12px;font-weight:750;letter-spacing:.16em;text-transform:uppercase}
.kfl-title{margin:0 0 28px;font-size:28px;font-weight:750;line-height:1.18;letter-spacing:-.03em}
.kfl-lang{display:inline-flex;flex:none;padding:3px;border:1px solid var(--kfl-line);border-radius:999px;background:rgba(255,255,255,.03)}
.kfl-lang button{min-width:var(--kfl-touch);min-height:var(--kfl-touch);padding:0 10px;border:0;border-radius:999px;background:transparent;color:var(--kfl-muted);font:inherit;font-size:12px;font-weight:700;letter-spacing:.06em;cursor:pointer;transition:background-color .18s,color .18s}
.kfl-lang button[aria-pressed="true"]{background:var(--kfl-brand);color:#fff}
.kfl-lang button:hover{color:var(--kfl-ink)}
.kfl-alert{display:flex;align-items:flex-start;gap:10px;margin:0 0 16px;padding:11px 12px;border:1px solid var(--kfl-danger-line);border-radius:var(--kfl-radius-sm);background:var(--kfl-danger-bg);color:var(--kfl-danger-fg);font-size:13px;line-height:1.4}
.kfl-form{display:grid;gap:14px}
.kfl-field{display:grid;gap:6px}
.kfl-field label{color:var(--kfl-ink);font-size:14px;font-weight:600}
.kfl-field input{width:100%;min-height:52px;padding:0 14px;border:1px solid var(--kfl-line);border-radius:var(--kfl-radius-sm);background:var(--kfl-field);color:var(--kfl-ink);font:inherit;font-size:16px;outline:none;transition:border-color .18s,background-color .18s,box-shadow .18s}
.kfl-field input:hover{border-color:var(--kfl-line-strong)}
.kfl-field input:focus-visible,.kfl-field input:focus{border-color:var(--kfl-brand-2);background:var(--kfl-field-focus);box-shadow:var(--kfl-focus)}
.kfl-field input[aria-invalid="true"]{border-color:var(--kfl-danger-line)}
.kfl-field input:-webkit-autofill{-webkit-text-fill-color:var(--kfl-ink);box-shadow:0 0 0 1000px #0d1d2c inset;caret-color:var(--kfl-ink)}
.kfl-pass{position:relative}
.kfl-pass input{padding-right:52px}
.kfl-eye{position:absolute;top:50%;right:2px;display:grid;place-items:center;width:var(--kfl-touch);height:var(--kfl-touch);padding:0;border:0;border-radius:8px;background:transparent;color:var(--kfl-muted);cursor:pointer;transform:translateY(-50%)}
.kfl-eye:hover{color:var(--kfl-ink)}
.kfl-eye .kfl-eye-off{display:none}
.kfl-eye[aria-pressed="true"] .kfl-eye-on{display:none}
.kfl-eye[aria-pressed="true"] .kfl-eye-off{display:block}
.kfl-hint{margin:0;color:var(--kfl-danger-fg);font-size:12px}
.kfl-submit{position:relative;display:flex;align-items:center;justify-content:center;gap:10px;min-height:54px;margin-top:4px;padding:0 18px;border:0;border-radius:var(--kfl-radius-sm);background:linear-gradient(135deg,var(--kfl-brand),var(--kfl-brand-2));color:#fff;font:inherit;font-size:15px;font-weight:700;cursor:pointer;box-shadow:0 10px 24px rgba(8,120,238,.24);transition:transform .12s,box-shadow .18s,filter .18s}
.kfl-submit:hover{filter:brightness(1.06);box-shadow:0 12px 28px rgba(8,120,238,.4)}
.kfl-submit:active{transform:scale(.985)}
.kfl-submit .kfl-arrow{transition:transform .2s var(--kfl-ease)}
.kfl-submit:hover .kfl-arrow{transform:translateX(3px)}
.kfl-submit-busy{display:none;align-items:center;gap:10px}
.kfl-submit[aria-busy="true"]{pointer-events:none;filter:saturate(.85)}
.kfl-submit[aria-busy="true"] .kfl-submit-label,.kfl-submit[aria-busy="true"] .kfl-arrow{display:none}
.kfl-submit[aria-busy="true"] .kfl-submit-busy{display:inline-flex}
.kfl-spinner{width:16px;height:16px;border:2px solid rgba(255,255,255,.45);border-top-color:#fff;border-radius:50%;animation:kfl-spin .7s linear infinite}
.kfl-i{width:18px;height:18px;flex:none;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
:is(.kfl-lang button,.kfl-eye,.kfl-submit):focus-visible{outline:none;box-shadow:var(--kfl-focus)}

/* ---------------------------------------------------------------- Page version, outside the form */
.kfl-foot{position:relative;z-index:1;grid-row:6;align-self:end;display:flex;justify-content:center;margin:24px 0 0;color:var(--kfl-faint);font-size:11px;letter-spacing:.02em}
.kfl-version{opacity:.75}

/* ---------------------------------------------------------------- Phones: larger brand, raised card, quote below */
@media (max-width:600px){
  body.kfl{grid-template-rows:auto auto auto 1fr auto;row-gap:0;padding:24px max(18px,env(safe-area-inset-right)) max(24px,env(safe-area-inset-bottom)) max(18px,env(safe-area-inset-left))}
  .kfl-art img{object-position:var(--kfl-focus-mobile)}
  .kfl-shade{background:linear-gradient(180deg,rgba(4,10,17,.48) 0%,rgba(4,10,17,.32) 28%,rgba(4,10,17,.48) 66%,rgba(4,10,17,.67) 100%)}
  .kfl-brand{grid-row:1}
  .kfl-logo{width:min(98%,390px)}
  .kfl-descriptor{margin-top:8px;font-size:11px;letter-spacing:.17em}
  .kfl-intro{display:none}
  .kfl-main{grid-row:2;margin-top:clamp(76px,13vh,116px)}
  .kfl-card{max-width:460px;padding:23px 20px 22px}
  .kfl-card-top{margin-bottom:10px}
  .kfl-title{font-size:25px;margin-bottom:22px}
  .kfl-form{gap:13px}
  .kfl-foot{grid-row:5;margin-top:24px}
  .kfl-quote{grid-row:3;max-width:460px;margin:28px auto 0;padding:0 6px 0 14px}
  .kfl-quote p{font-size:13.5px;line-height:1.5;font-weight:550}
}
@media (min-width:601px) and (max-width:1024px) and (orientation:portrait){
  .kfl-art img{object-position:var(--kfl-focus-tablet)}
  .kfl-shade{background:linear-gradient(180deg,rgba(4,10,17,.60) 0%,rgba(4,10,17,.38) 28%,rgba(4,10,17,.35) 55%,rgba(4,10,17,.72) 100%)}
  body.kfl{grid-template-rows:auto auto auto auto 1fr auto;padding:32px 32px 30px}
  .kfl-logo{width:min(480px,70vw)}
  .kfl-descriptor{font-size:13px}
  .kfl-intro{grid-row:2;width:100%;max-width:620px;margin:14px auto 0}
  .kfl-hero{text-align:center}
  .kfl-hero h2{font-size:clamp(29px,4.3vw,38px)}
  .kfl-hero p{margin:10px auto 0;font-size:14px}
  .kfl-features{display:none}
  .kfl-main{grid-row:3;margin-top:20px}
  .kfl-card{max-width:480px;padding:25px 28px 22px}
  .kfl-card-top{margin-bottom:10px}
  .kfl-title{font-size:30px;margin-bottom:21px}
  .kfl-field input{min-height:50px}
  .kfl-foot{grid-row:6;margin-top:24px}
  .kfl-quote{grid-row:4;margin:28px auto 0}
  .kfl-quote p{font-size:14px}
}

/* ---------------------------------------------------------------- Wide: one centred 660 / 480 composition */
@media (min-width:900px) and (orientation:landscape),(min-width:1025px){
  body.kfl{grid-template-columns:minmax(0,660px) minmax(380px,480px);grid-template-rows:auto 1fr auto;column-gap:clamp(36px,8vw,140px);row-gap:18px;justify-content:space-between;align-content:stretch;padding:clamp(32px,3.7vw,52px)}
  .kfl-brand{grid-column:1;grid-row:1;text-align:left}
  .kfl-logo{width:clamp(350px,36vw,520px);margin:0}
  .kfl-descriptor{margin:12px 0 0 4px;font-size:14px}
  .kfl-shade{background:radial-gradient(60% 42% at 0% 100%,rgba(4,10,17,.57),transparent 72%),linear-gradient(90deg,rgba(4,10,17,.77) 0%,rgba(4,10,17,.55) 33%,rgba(4,10,17,.38) 55%,rgba(4,10,17,.56) 100%)}
  .kfl-intro{display:flex;flex-direction:column;justify-content:space-between;gap:24px;grid-column:1;grid-row:2;max-width:660px;padding:4px 0 0}
  .kfl-main{grid-column:2;grid-row:1/3;align-items:flex-start;justify-content:flex-end;padding-top:30px}
  .kfl-card{max-width:480px;min-height:560px;padding:38px 40px 36px;border-radius:21px}
  .kfl-card-top{margin-bottom:20px}
  .kfl-title{font-size:32px;margin-bottom:38px}
  .kfl-form{gap:20px}
  .kfl-field input{min-height:56px}
  .kfl-submit{min-height:58px;font-size:16px}
  .kfl-foot{grid-column:2;grid-row:3;justify-content:center;align-self:end;margin:0 0 4px}
  .kfl-quote{grid-column:1;grid-row:3;max-width:660px;margin:0 0 4px}
}
/* Tablet landscape: two columns without desktop feature cards. */
@media (min-width:900px) and (max-width:1279px) and (orientation:landscape){
  body.kfl{grid-template-rows:max-content max-content auto 1fr auto}
  .kfl-features{display:none}
  .kfl-hero h2{font-size:32px}
  .kfl-hero p{font-size:13px}
  .kfl-card{min-height:0;padding:30px 28px}
  .kfl-title{font-size:29px;margin-bottom:28px}
  .kfl-quote{grid-column:2;grid-row:3;width:100%;max-width:480px;justify-self:end;align-self:start;margin:8px 0 0}
  .kfl-foot{grid-column:1/3;grid-row:5;align-self:end;justify-self:center;margin:20px 0 4px}
}

/* ---------------------------------------------------------------- Short landscape phones: compact, scrolls, nothing hidden */
@media (max-height:520px) and (orientation:landscape){
  body.kfl{max-width:none;grid-template-columns:minmax(0,1fr) minmax(320px,400px);grid-template-rows:auto 1fr auto;padding:12px max(16px,env(safe-area-inset-right)) 12px max(16px,env(safe-area-inset-left));column-gap:24px;row-gap:0}
  .kfl-brand{grid-column:1;grid-row:1;text-align:left}
  .kfl-logo{width:min(200px,100%);margin:0}
  .kfl-descriptor{margin:8px 0 0 4px;font-size:11px}
  .kfl-intro{display:none}
  .kfl-main{grid-column:2;grid-row:1/3;margin:0;padding:0;align-items:flex-start}
  .kfl-card{min-height:0;padding:12px 16px;border-radius:16px}
  .kfl-card-top{margin-bottom:6px}
  .kfl-title{margin-bottom:10px;font-size:22px}
  .kfl-form{gap:8px}
  .kfl-field{gap:4px}
  .kfl-field label{font-size:12px}
  .kfl-field input{min-height:44px}
  .kfl-submit{min-height:48px;margin-top:0}
  .kfl-foot{grid-column:1/3;grid-row:3;justify-self:center;margin:0}
  .kfl-quote{display:none}
}

/* ---------------------------------------------------------------- Motion: transform / opacity only, lighter on phones */
@media (prefers-reduced-motion:no-preference){
  .kfl-scene{animation:kfl-fade .9s ease-out both}
  .kfl-brand{animation:kfl-rise .7s var(--kfl-ease) .05s both}
  .kfl-intro{animation:kfl-rise .7s var(--kfl-ease) .18s both}
  .kfl-card{animation:kfl-rise .6s var(--kfl-ease) .12s both}
  .kfl-foot{animation:kfl-fade .6s ease-out .3s both}
  @media (min-width:768px){
    .kfl-art img{animation:kfl-depth 1.6s var(--kfl-ease) both}
    .kfl-card{animation:kfl-slide .65s var(--kfl-ease) .15s both}
  }
  .kfl-alert{animation:kfl-shake .4s ease-in-out .2s 1 both}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:1ms!important;animation-iteration-count:1!important;transition-duration:1ms!important}
  .kfl-spinner{animation:none;border-top-color:rgba(255,255,255,.45)}
}
@keyframes kfl-fade{from{opacity:0}to{opacity:1}}
@keyframes kfl-rise{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}
@keyframes kfl-slide{from{opacity:0;transform:translateX(16px)}to{opacity:1;transform:none}}
@keyframes kfl-depth{from{transform:scale(1.04)}to{transform:none}}
@keyframes kfl-shake{0%,100%{transform:none}25%{transform:translateX(-4px)}75%{transform:translateX(4px)}}
@keyframes kfl-spin{to{transform:rotate(360deg)}}