/* ================================================================
   World Cup Booking Hub — Design System
   Mobile-first. CSS variables. Single stylesheet.
================================================================ */

:root{
  /* Brand — World Cup 2026 host nations green/red/white */
  --brand:#0a7c3a;
  --brand-dark:#065a28;
  --brand-light:#14a04a;
  --accent:#e63946;
  --accent-dark:#b81d2a;
  --gold:#f4c430;

  /* Surfaces */
  --bg:#0b1220;
  --bg-soft:#111a2e;
  --surface:#ffffff;
  --surface-2:#f7f9fc;
  --surface-3:#eef2f7;
  --line:#e3e8ef;
  --line-strong:#cdd5e0;

  /* Text */
  --ink:#0e1726;
  --ink-2:#3a4658;
  --ink-3:#6b7689;
  --ink-inv:#ffffff;
  --muted:#8b95a8;

  /* States */
  --ok:#16a34a;
  --warn:#f59e0b;
  --err:#dc2626;
  --info:#2563eb;

  /* Layout */
  --radius:14px;
  --radius-sm:8px;
  --radius-lg:22px;
  --shadow-sm:0 1px 2px rgba(15,23,42,.06), 0 1px 1px rgba(15,23,42,.04);
  --shadow:0 8px 24px -8px rgba(15,23,42,.18), 0 2px 6px rgba(15,23,42,.06);
  --shadow-lg:0 30px 60px -20px rgba(15,23,42,.35);

  /* Type */
  --font:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Inter,"Helvetica Neue",Arial,sans-serif;
  --font-display:"Inter",-apple-system,"Segoe UI",Roboto,sans-serif;

  /* Container */
  --container:1200px;
  --gutter:16px;

  /* Header */
  --header-h:60px;
}

/* ----- Reset ----- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:15px;
  line-height:1.55;
  color:var(--ink);
  background:var(--surface-2);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img,svg,video{max-width:100%;display:block;height:auto}
button{font:inherit;cursor:pointer;border:0;background:transparent;color:inherit}
a{color:var(--brand);text-decoration:none}
a:hover{color:var(--brand-dark)}
input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4,h5{font-family:var(--font-display);line-height:1.2;margin:0 0 .5em}
h1{font-size:clamp(1.75rem,5vw,3rem);font-weight:800;letter-spacing:-.02em}
h2{font-size:clamp(1.4rem,3.5vw,2.1rem);font-weight:800;letter-spacing:-.015em}
h3{font-size:1.15rem;font-weight:700}
h4{font-size:1rem;font-weight:700}
p{margin:0 0 1em}

/* ----- Utilities ----- */
.container{max-width:var(--container);margin:0 auto;padding:0 var(--gutter)}
.stack>*+*{margin-top:1rem}
.row{display:flex;flex-wrap:wrap;gap:var(--gutter)}
.center{text-align:center}
.muted{color:var(--ink-3)}
.hide-mobile{display:none}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
.tag{
  display:inline-flex;align-items:center;gap:.35em;
  padding:.25em .6em;border-radius:999px;
  background:var(--surface-3);color:var(--ink-2);
  font-size:.78rem;font-weight:600;
}
.tag-brand{background:rgba(10,124,58,.12);color:var(--brand-dark)}
.tag-accent{background:rgba(230,57,70,.12);color:var(--accent-dark)}
.tag-gold{background:rgba(244,196,48,.18);color:#7a5d04}

/* ----- Buttons ----- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.5em;
  padding:.85em 1.4em;border-radius:var(--radius-sm);
  font-weight:700;font-size:.95rem;letter-spacing:.01em;
  background:var(--ink);color:var(--ink-inv);
  transition:transform .08s ease, box-shadow .15s ease, background .15s;
  min-height:46px;
  text-align:center;white-space:nowrap;
}
.btn:hover{background:#1a2436;color:#fff}
.btn:active{transform:translateY(1px)}
.btn-brand{background:var(--brand)}
.btn-brand:hover{background:var(--brand-dark);color:#fff}
.btn-accent{background:var(--accent)}
.btn-accent:hover{background:var(--accent-dark);color:#fff}
.btn-outline{background:transparent;color:var(--ink);border:1.5px solid var(--line-strong)}
.btn-outline:hover{background:var(--surface-3);color:var(--ink)}
.btn-ghost{background:transparent;color:var(--ink-2)}
.btn-ghost:hover{background:var(--surface-3);color:var(--ink)}
.btn-block{width:100%}
.btn-sm{padding:.55em 1em;font-size:.85rem;min-height:38px}
.btn-lg{padding:1em 1.6em;font-size:1.05rem;min-height:54px}
.btn[disabled],.btn:disabled{opacity:.55;cursor:not-allowed}

/* ----- Header ----- */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(255,255,255,.92);
  backdrop-filter:saturate(180%) blur(10px);
  -webkit-backdrop-filter:saturate(180%) blur(10px);
  border-bottom:1px solid var(--line);
  height:var(--header-h);
  display:flex;align-items:center;
}
.site-header .container{
  display:flex;align-items:center;justify-content:space-between;width:100%;
}
.brand-logo{
  display:flex;align-items:center;gap:.5rem;
  font-weight:800;font-size:1rem;letter-spacing:-.01em;color:var(--ink);
}
.brand-logo .badge{
  width:32px;height:32px;border-radius:8px;
  background:linear-gradient(135deg,var(--brand) 0%,var(--accent) 100%);
  display:grid;place-items:center;color:#fff;font-size:.85rem;
}
.brand-logo .name{display:none}
@media (min-width:480px){.brand-logo .name{display:inline}}

.nav-toggle{
  width:40px;height:40px;display:grid;place-items:center;border-radius:10px;
}
.nav-toggle:hover{background:var(--surface-3)}
.nav-toggle svg{width:22px;height:22px}

.header-actions{display:flex;align-items:center;gap:.25rem}
.icon-btn{
  position:relative;width:40px;height:40px;border-radius:10px;
  display:grid;place-items:center;color:var(--ink-2);
}
.icon-btn:hover{background:var(--surface-3);color:var(--ink)}
.icon-btn .count{
  position:absolute;top:4px;right:4px;
  min-width:18px;height:18px;padding:0 5px;
  border-radius:9px;background:var(--accent);color:#fff;
  font-size:.7rem;font-weight:700;display:grid;place-items:center;
  line-height:1;
}

/* Desktop nav */
.nav-desktop{display:none;align-items:center;gap:.25rem}
.nav-desktop a{
  color:var(--ink-2);font-weight:600;font-size:.92rem;
  padding:.5rem .85rem;border-radius:8px;
}
.nav-desktop a:hover{background:var(--surface-3);color:var(--ink)}
.nav-desktop a.active{color:var(--brand);background:rgba(10,124,58,.08)}
@media (min-width:1024px){
  .nav-desktop{display:flex}
  .nav-toggle{display:none}
}

/* Mobile drawer */
.drawer{
  position:fixed;inset:0 30% 0 0;
  background:#fff;z-index:200;
  transform:translateX(-100%);transition:transform .3s ease;
  display:flex;flex-direction:column;
  box-shadow:var(--shadow-lg);
  max-width:320px;
}
.drawer.open{transform:translateX(0)}
.drawer-backdrop{
  position:fixed;inset:0;background:rgba(15,23,42,.5);z-index:150;
  opacity:0;pointer-events:none;transition:opacity .3s;
}
.drawer-backdrop.open{opacity:1;pointer-events:auto}
.drawer-head{
  display:flex;align-items:center;justify-content:space-between;
  padding:1rem var(--gutter);border-bottom:1px solid var(--line);
  height:var(--header-h);
}
.drawer-nav{padding:.5rem 0;flex:1;overflow-y:auto}
.drawer-nav a{
  display:flex;align-items:center;gap:.85rem;
  padding:.85rem var(--gutter);
  color:var(--ink);font-weight:600;
  border-left:3px solid transparent;
}
.drawer-nav a:hover{background:var(--surface-3)}
.drawer-nav a.active{
  border-left-color:var(--brand);
  color:var(--brand-dark);background:rgba(10,124,58,.05);
}
.drawer-nav .dn-icon{width:20px;color:var(--ink-3)}
.drawer-foot{
  padding:1rem var(--gutter);border-top:1px solid var(--line);
  display:grid;gap:.5rem;
}

/* ----- Hero ----- */
.hero{
  position:relative;overflow:hidden;
  min-height:min(82vh,640px);
  display:grid;align-items:center;
  color:#fff;
}
.hero-bg{
  position:absolute;inset:0;z-index:0;
  background:#0b1220;
}
.hero-bg::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(10,18,32,.55) 0%,rgba(10,18,32,.85) 100%);
}
.hero-bg img{
  position:absolute;inset:0;width:100%;height:100%;
  object-fit:cover;opacity:0;
  transition:opacity 1s ease;
}
.hero-bg img.active{opacity:1}
.hero-inner{position:relative;z-index:1;padding:3rem 0 2rem;width:100%}
.hero h1{
  color:#fff;font-size:clamp(2rem,7vw,3.6rem);
  text-shadow:0 2px 20px rgba(0,0,0,.4);
  margin-bottom:.5em;
}
.hero p.lead{
  color:rgba(255,255,255,.92);font-size:clamp(1rem,2.5vw,1.2rem);
  max-width:42ch;margin-bottom:1.5em;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:.75rem}

/* ----- Countdown ----- */
.countdown-card{
  background:#fff;border-radius:var(--radius);
  padding:1.25rem;box-shadow:var(--shadow);
  border:1px solid var(--line);
}
.countdown-card h3{
  display:flex;align-items:center;gap:.5rem;
  color:var(--ink);margin-bottom:1rem;font-size:1rem;
}
.countdown-card .dot{
  width:8px;height:8px;border-radius:50%;
  background:var(--accent);box-shadow:0 0 0 0 rgba(230,57,70,.6);
  animation:pulse 2s infinite;
}
@keyframes pulse{
  0%{box-shadow:0 0 0 0 rgba(230,57,70,.6)}
  70%{box-shadow:0 0 0 12px rgba(230,57,70,0)}
  100%{box-shadow:0 0 0 0 rgba(230,57,70,0)}
}
.countdown{display:grid;grid-template-columns:repeat(4,1fr);gap:.5rem}
.cd-cell{
  background:var(--surface-2);border-radius:var(--radius-sm);
  padding:.75rem .25rem;text-align:center;
  border:1px solid var(--line);
}
.cd-cell .num{
  font-family:var(--font-display);
  font-size:clamp(1.4rem,5vw,2rem);font-weight:800;
  color:var(--ink);line-height:1;letter-spacing:-.02em;
  font-variant-numeric:tabular-nums;
}
.cd-cell .lbl{
  font-size:.7rem;text-transform:uppercase;letter-spacing:.08em;
  color:var(--ink-3);margin-top:.35rem;font-weight:600;
}

/* ----- Sections ----- */
.section{padding:3rem 0}
.section-tight{padding:2rem 0}
.section-title{text-align:center;margin-bottom:2rem}
.section-title h2{margin-bottom:.4em}
.section-title p{color:var(--ink-3);max-width:50ch;margin:0 auto}
.section-alt{background:#fff}

/* ----- Cards ----- */
.card{
  background:#fff;border:1px solid var(--line);
  border-radius:var(--radius);overflow:hidden;
  transition:transform .15s ease,box-shadow .2s ease,border-color .2s;
  display:flex;flex-direction:column;
}
.card:hover{
  transform:translateY(-2px);box-shadow:var(--shadow);
  border-color:var(--line-strong);
}
.card-img{
  aspect-ratio:16/10;background:var(--surface-3);
  position:relative;overflow:hidden;
}
.card-img img{width:100%;height:100%;object-fit:cover}
.card-icon{
  width:48px;height:48px;border-radius:12px;
  display:grid;place-items:center;
  background:rgba(10,124,58,.1);color:var(--brand);
  margin-bottom:.85rem;
}
.card-icon svg{width:24px;height:24px}
.card-body{padding:1.25rem;display:flex;flex-direction:column;gap:.5rem;flex:1}
.card-body h3{margin:0;font-size:1.1rem}
.card-body p{margin:0;color:var(--ink-3);font-size:.92rem}
.card-foot{padding:.85rem 1.25rem;border-top:1px solid var(--line);background:var(--surface-2)}

.grid-2{display:grid;grid-template-columns:1fr;gap:var(--gutter)}
.grid-3{display:grid;grid-template-columns:1fr;gap:var(--gutter)}
.grid-4{display:grid;grid-template-columns:1fr;gap:var(--gutter)}
@media (min-width:600px){
  .grid-2{grid-template-columns:repeat(2,1fr)}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .grid-4{grid-template-columns:repeat(2,1fr)}
}
@media (min-width:900px){
  .grid-3{grid-template-columns:repeat(3,1fr)}
  .grid-4{grid-template-columns:repeat(4,1fr)}
}

/* ----- Forms ----- */
.field{display:block;margin-bottom:1rem}
.field label{
  display:block;font-weight:600;font-size:.9rem;
  margin-bottom:.4rem;color:var(--ink-2);
}
.field .hint{
  display:block;font-size:.8rem;color:var(--ink-3);margin-top:.35rem;
}
.field .err{
  display:block;font-size:.82rem;color:var(--err);margin-top:.35rem;
  font-weight:500;
}
.input,.select,.textarea{
  width:100%;padding:.85em 1em;
  background:#fff;border:1.5px solid var(--line-strong);
  border-radius:var(--radius-sm);
  font-size:1rem;color:var(--ink);
  transition:border-color .15s, box-shadow .15s;
  min-height:48px;
}
.input:focus,.select:focus,.textarea:focus{
  outline:none;border-color:var(--brand);
  box-shadow:0 0 0 3px rgba(10,124,58,.15);
}
.input.err,.select.err{border-color:var(--err)}
.input.err:focus,.select.err:focus{box-shadow:0 0 0 3px rgba(220,38,38,.15)}
.textarea{min-height:120px;resize:vertical}
.input-group{position:relative}
.input-group .input{padding-right:3rem}
.input-group .toggle{
  position:absolute;right:.5rem;top:50%;transform:translateY(-50%);
  width:38px;height:38px;border-radius:8px;
  display:grid;place-items:center;color:var(--ink-3);
}
.input-group .toggle:hover{background:var(--surface-3);color:var(--ink)}
.checkbox{
  display:flex;align-items:flex-start;gap:.6rem;
  font-size:.92rem;color:var(--ink-2);cursor:pointer;
}
.checkbox input{
  width:18px;height:18px;margin-top:2px;accent-color:var(--brand);
  flex-shrink:0;
}

/* Strength meter */
.strength{margin-top:.5rem}
.strength-bar{
  height:5px;background:var(--surface-3);border-radius:3px;overflow:hidden;
  display:grid;grid-template-columns:repeat(4,1fr);gap:3px;
}
.strength-bar span{background:var(--surface-3);border-radius:3px}
.strength[data-score="1"] span:nth-child(-n+1){background:var(--err)}
.strength[data-score="2"] span:nth-child(-n+2){background:var(--warn)}
.strength[data-score="3"] span:nth-child(-n+3){background:var(--info)}
.strength[data-score="4"] span:nth-child(-n+4){background:var(--ok)}
.strength-label{font-size:.78rem;margin-top:.3rem;color:var(--ink-3)}

/* OTP */
.otp{display:flex;gap:.5rem;justify-content:center;margin:1.5rem 0}
.otp input{
  width:48px;height:56px;text-align:center;
  font-size:1.4rem;font-weight:700;
  border:1.5px solid var(--line-strong);border-radius:var(--radius-sm);
  background:#fff;
  font-variant-numeric:tabular-nums;
}
.otp input:focus{
  outline:none;border-color:var(--brand);
  box-shadow:0 0 0 3px rgba(10,124,58,.15);
}
@media (max-width:380px){
  .otp input{width:40px;height:48px;font-size:1.2rem}
  .otp{gap:.35rem}
}

/* ----- Auth pages ----- */
.auth-wrap{
  min-height:calc(100vh - var(--header-h));
  display:grid;place-items:center;
  padding:2rem var(--gutter);
  background:
    radial-gradient(ellipse at top,rgba(10,124,58,.08),transparent 60%),
    radial-gradient(ellipse at bottom,rgba(230,57,70,.05),transparent 60%),
    var(--surface-2);
}
.auth-card{
  width:100%;max-width:440px;
  background:#fff;border-radius:var(--radius-lg);
  padding:2rem 1.5rem;box-shadow:var(--shadow);
  border:1px solid var(--line);
}
.auth-card h1{
  font-size:1.6rem;margin-bottom:.3em;
}
.auth-card .sub{color:var(--ink-3);margin-bottom:1.5rem}
.auth-foot{
  text-align:center;margin-top:1.25rem;padding-top:1.25rem;
  border-top:1px solid var(--line);font-size:.92rem;color:var(--ink-3);
}
.auth-foot a{font-weight:600}
.auth-logo{
  display:flex;justify-content:center;margin-bottom:1.25rem;
}
.auth-logo .badge{
  width:56px;height:56px;border-radius:16px;
  background:linear-gradient(135deg,var(--brand) 0%,var(--accent) 100%);
  display:grid;place-items:center;color:#fff;font-size:1.5rem;font-weight:800;
  box-shadow:var(--shadow);
}

/* Alerts */
.alert{
  display:flex;gap:.6rem;align-items:flex-start;
  padding:.85rem 1rem;border-radius:var(--radius-sm);
  font-size:.9rem;margin-bottom:1rem;
  border:1px solid;
}
.alert-ok{background:#ecfdf5;border-color:#a7f3d0;color:#065f46}
.alert-err{background:#fef2f2;border-color:#fecaca;color:#991b1b}
.alert-info{background:#eff6ff;border-color:#bfdbfe;color:#1e40af}
.alert-warn{background:#fffbeb;border-color:#fde68a;color:#854d0e}
.alert svg{width:18px;height:18px;flex-shrink:0;margin-top:1px}

/* Spinner */
.spinner{
  width:18px;height:18px;border:2.5px solid currentColor;
  border-right-color:transparent;border-radius:50%;
  animation:spin .7s linear infinite;display:inline-block;
}
@keyframes spin{to{transform:rotate(360deg)}}

/* ----- Match cards ----- */
.match{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:1rem;display:grid;gap:.85rem;
  transition:box-shadow .2s, border-color .2s;
}
.match:hover{box-shadow:var(--shadow);border-color:var(--line-strong)}
.match-head{
  display:flex;justify-content:space-between;align-items:center;
  font-size:.78rem;color:var(--ink-3);font-weight:600;
}
.match-stage{
  background:var(--surface-3);padding:.2em .6em;border-radius:999px;
  text-transform:uppercase;letter-spacing:.05em;
}
.match-stage.final{background:var(--gold);color:#7a5d04}
.match-teams{
  display:grid;grid-template-columns:1fr auto 1fr;gap:.5rem;
  align-items:center;text-align:center;
}
.team{display:flex;flex-direction:column;align-items:center;gap:.4rem}
.flag{font-size:2rem;line-height:1}
.team-name{font-weight:700;font-size:.92rem}
.vs{
  font-weight:800;color:var(--ink-3);font-size:.85rem;
  letter-spacing:.05em;
}
.match-meta{
  display:flex;justify-content:space-between;align-items:center;
  padding-top:.85rem;border-top:1px dashed var(--line);
  font-size:.85rem;color:var(--ink-3);
}
.match-meta strong{color:var(--ink);font-weight:600}

/* ----- Filters ----- */
.filters{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:1rem;margin-bottom:1.5rem;
}
.filters-grid{display:grid;grid-template-columns:1fr;gap:.75rem}
@media (min-width:700px){.filters-grid{grid-template-columns:repeat(4,1fr)}}
.chips{display:flex;flex-wrap:wrap;gap:.5rem;margin-top:.75rem}
.chip{
  padding:.5em 1em;border-radius:999px;font-size:.85rem;font-weight:600;
  background:var(--surface-3);color:var(--ink-2);
  border:1.5px solid transparent;cursor:pointer;
  transition:all .15s;
}
.chip:hover{background:var(--line)}
.chip.active{background:var(--brand);color:#fff;border-color:var(--brand)}

/* ----- Footer ----- */
.site-footer{
  background:var(--bg);color:#a8b3c4;padding:3rem 0 1rem;
  margin-top:3rem;
}
.site-footer h4{color:#fff;margin-bottom:.85rem;font-size:.95rem}
.site-footer a{color:#a8b3c4;display:block;padding:.25rem 0;font-size:.92rem}
.site-footer a:hover{color:#fff}
.footer-grid{
  display:grid;grid-template-columns:1fr;gap:2rem;
}
@media (min-width:600px){.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:900px){.footer-grid{grid-template-columns:repeat(4,1fr)}}
.footer-bottom{
  margin-top:2rem;padding-top:1.5rem;
  border-top:1px solid rgba(255,255,255,.08);
  text-align:center;font-size:.85rem;color:#6c778a;
}

/* ----- Floating WhatsApp ----- */
.fab{
  position:fixed;right:1rem;bottom:1rem;z-index:40;
  width:56px;height:56px;border-radius:50%;
  background:#25d366;color:#fff;
  display:grid;place-items:center;
  box-shadow:0 10px 25px -5px rgba(37,211,102,.5);
  transition:transform .2s;
}
.fab:hover{transform:scale(1.06);color:#fff}
.fab svg{width:28px;height:28px}

/* ----- Misc ----- */
.page-head{
  background:linear-gradient(135deg,var(--brand) 0%,var(--brand-dark) 100%);
  color:#fff;padding:2.5rem 0;
}
.page-head h1{color:#fff;margin-bottom:.3em}
.page-head p{color:rgba(255,255,255,.9);margin:0;max-width:60ch}

.divider{height:1px;background:var(--line);margin:1.5rem 0}

.empty{
  text-align:center;padding:3rem 1rem;color:var(--ink-3);
}
.empty svg{width:48px;height:48px;margin:0 auto 1rem;color:var(--line-strong)}

/* Tables (simple) */
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius);background:#fff}
.table{width:100%;border-collapse:collapse;font-size:.92rem}
.table th,.table td{padding:.85rem 1rem;text-align:left;border-bottom:1px solid var(--line)}
.table th{background:var(--surface-2);font-weight:700;color:var(--ink-2);font-size:.85rem;text-transform:uppercase;letter-spacing:.04em}
.table tr:last-child td{border-bottom:0}

/* Tabs */
.tabs{display:flex;gap:.25rem;border-bottom:1px solid var(--line);margin-bottom:1.5rem;overflow-x:auto}
.tab{
  padding:.85rem 1.1rem;font-weight:600;color:var(--ink-3);
  border-bottom:2px solid transparent;white-space:nowrap;
}
.tab.active{color:var(--brand);border-bottom-color:var(--brand)}
.tab:hover{color:var(--ink)}

/* Booking summary */
.summary{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:1.25rem;
}
.summary-row{
  display:flex;justify-content:space-between;align-items:center;
  padding:.6rem 0;font-size:.93rem;
}
.summary-row+.summary-row{border-top:1px solid var(--line)}
.summary-total{
  font-weight:800;font-size:1.1rem;color:var(--ink);
}

/* Hide scrollbars on chip rows */
.chip-scroll{display:flex;gap:.5rem;overflow-x:auto;padding-bottom:.25rem;scrollbar-width:none}
.chip-scroll::-webkit-scrollbar{display:none}
.chip-scroll .chip{flex-shrink:0}