/* ============================================================
   aus.contact — AI webmail. Landing design system.
   Ink navy · indigo primary · teal accent · soft canvas.
   Sora (display) + Inter (body), self-hosted.
   ============================================================ */
@font-face{font-family:'Sora';font-style:normal;font-weight:600;font-display:swap;src:url(assets/fonts/sora-600.woff2) format('woff2')}
@font-face{font-family:'Sora';font-style:normal;font-weight:700;font-display:swap;src:url(assets/fonts/sora-700.woff2) format('woff2')}
@font-face{font-family:'Sora';font-style:normal;font-weight:800;font-display:swap;src:url(assets/fonts/sora-800.woff2) format('woff2')}
@font-face{font-family:'Inter';font-style:normal;font-weight:400;font-display:swap;src:url(assets/fonts/inter-400.woff2) format('woff2')}
@font-face{font-family:'Inter';font-style:normal;font-weight:500;font-display:swap;src:url(assets/fonts/inter-500.woff2) format('woff2')}
@font-face{font-family:'Inter';font-style:normal;font-weight:600;font-display:swap;src:url(assets/fonts/inter-600.woff2) format('woff2')}
@font-face{font-family:'Inter';font-style:normal;font-weight:700;font-display:swap;src:url(assets/fonts/inter-700.woff2) format('woff2')}

:root{
  --ink:#0b1020; --ink-2:#121a30; --ink-3:#1c2742;
  --primary:#ec3013; --primary-2:#ff5a3c; --primary-deep:#c8280e;
  --teal:#17c3b2; --teal-2:#3fd8c8;
  --amber:#ffb020;
  --canvas:#f6f8fc; --paper:#ffffff; --soft:#eef2fb; --soft-2:#e4eaf6;
  --heading:#0b1020; --body:#45516b; --muted:#7b87a3;
  --line:#e2e8f4; --line-2:#d3dcee;
  --on-dark:#e8ecf7; --on-dark-muted:#9aa6c4; --on-dark-faint:rgba(232,236,247,.45);
  --serif:'Sora',-apple-system,'Segoe UI',sans-serif;
  --sans:'Inter',-apple-system,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;
  --maxw:1180px; --r:12px; --r-lg:20px;
  --shadow-sm:0 1px 2px rgba(11,16,32,.06),0 10px 30px -12px rgba(11,16,32,.14);
  --shadow:0 30px 70px -30px rgba(11,16,32,.4);
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:84px;-webkit-text-size-adjust:100%}
body{margin:0;font-family:var(--sans);font-size:17px;line-height:1.65;color:var(--body);background:var(--canvas);-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
img,svg{max-width:100%;display:block}
a{color:var(--primary-deep);text-decoration:none;transition:color .2s}
a:hover{color:var(--ink)}
h1,h2,h3,h4{font-family:var(--serif);color:var(--heading);font-weight:700;line-height:1.1;margin:0 0 .45em;letter-spacing:-.02em}
p{margin:0 0 1rem}
.container{width:100%;max-width:var(--maxw);margin-inline:auto;padding-inline:clamp(20px,4vw,40px)}
.section{padding:clamp(60px,8vw,110px) 0}
.eyebrow{font-size:.75rem;font-weight:700;letter-spacing:.18em;text-transform:uppercase;color:var(--primary);margin:0 0 16px;display:flex;align-items:center;gap:10px}
.eyebrow::before{content:"";width:26px;height:2px;background:var(--primary);display:inline-block}
.eyebrow.center{justify-content:center}
.eyebrow.center::after{content:"";width:26px;height:2px;background:var(--primary);display:inline-block}
.title{font-size:clamp(1.9rem,4vw,2.9rem)}
.lede{font-size:1.16rem;max-width:60ch}
.center{text-align:center}
.section-head{max-width:660px}
.section-head.center{margin-inline:auto}
.reveal{opacity:0;transform:translateY(22px);transition:opacity .7s var(--ease),transform .7s var(--ease)}
.reveal.in{opacity:1;transform:none}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;font-family:var(--sans);font-weight:600;font-size:.98rem;line-height:1;padding:14px 26px;border:1.5px solid transparent;border-radius:11px;cursor:pointer;transition:all .2s var(--ease);white-space:nowrap}
.btn svg{width:18px;height:18px;flex:none}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 14px 30px -14px rgba(236,48,19,.8)}
.btn-primary:hover{background:var(--primary-deep);transform:translateY(-2px);color:#fff}
.btn-ghost{background:transparent;color:var(--heading);border-color:var(--line-2)}
.btn-ghost:hover{border-color:var(--primary);color:var(--primary-deep)}
.btn-light{background:#fff;color:var(--ink)}
.btn-light:hover{transform:translateY(-2px);box-shadow:var(--shadow-sm);color:var(--ink)}
.btn-outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.35)}
.btn-outline-light:hover{background:rgba(255,255,255,.1);border-color:#fff;color:#fff}
.btn-lg{padding:16px 32px;font-size:1.04rem}

/* header */
.site-header{position:sticky;top:0;z-index:60;background:rgba(246,248,252,.82);backdrop-filter:blur(12px);border-bottom:1px solid transparent;transition:border-color .25s,box-shadow .25s}
.site-header.scrolled{border-bottom-color:var(--line);box-shadow:0 8px 30px -22px rgba(11,16,32,.5)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:72px}
.brand{display:inline-flex;align-items:center;gap:9px;font-family:var(--serif);font-weight:800;font-size:1.24rem;letter-spacing:-.02em;color:var(--ink)}
.brand .mark{width:34px;height:34px;flex:none}
.brand .dot{color:var(--primary);margin:0 -.1em}
.nav{display:flex;align-items:center;gap:30px}
.nav a{color:var(--body);font-size:.96rem;font-weight:500}
.nav a:hover{color:var(--ink)}
.header-cta{display:flex;align-items:center;gap:12px}
.nav-toggle{display:none;background:none;border:0;width:44px;height:44px;cursor:pointer;color:var(--ink)}
.nav-toggle svg{width:26px;height:26px;margin:auto}
.mobile-nav{display:none;flex-direction:column;gap:2px;padding:8px 0 18px;border-top:1px solid var(--line)}
.mobile-nav a{padding:13px 4px;font-weight:500;color:var(--ink);border-bottom:1px solid var(--soft)}
.mobile-nav .btn{margin-top:12px}
.mobile-nav.open{display:flex}

/* hero */
.hero{position:relative;background:radial-gradient(120% 120% at 85% -10%,#1a2c4a 0%,transparent 55%),linear-gradient(180deg,var(--ink) 0%,var(--ink-2) 100%);color:var(--on-dark);overflow:hidden}
.hero::before{content:"";position:absolute;inset:0;background-image:radial-gradient(circle at 20% 20%,rgba(236,48,19,.22),transparent 40%),radial-gradient(circle at 80% 60%,rgba(23,195,178,.16),transparent 42%);pointer-events:none}
.hero-inner{position:relative;display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(32px,5vw,64px);align-items:center;padding:clamp(64px,9vw,120px) 0 clamp(56px,8vw,104px)}
.hero-badge{display:inline-flex;align-items:center;gap:9px;font-size:.78rem;font-weight:600;letter-spacing:.02em;color:#cfe9e4;background:rgba(23,195,178,.12);border:1px solid rgba(23,195,178,.32);padding:7px 15px;border-radius:100px;margin-bottom:22px}
.hero-badge .dot{width:8px;height:8px;border-radius:50%;background:var(--teal-2);box-shadow:0 0 0 4px rgba(63,216,200,.2)}
.hero h1{color:#fff;font-size:clamp(2.3rem,5.2vw,4rem);font-weight:800;margin-bottom:.3em}
.hero h1 em{font-style:normal;background:linear-gradient(90deg,var(--primary-2),var(--teal-2));-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-sub{font-size:clamp(1.05rem,1.6vw,1.24rem);color:var(--on-dark-muted);max-width:54ch;margin-bottom:32px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:30px}
.hero-trust{display:flex;flex-wrap:wrap;gap:10px 22px;font-size:.9rem;color:#cbd4ea}
.hero-trust span{display:inline-flex;align-items:center;gap:8px}
.hero-trust svg{width:17px;height:17px;color:var(--teal-2)}

/* hero mock: inbox card */
.hero-mock{background:linear-gradient(180deg,rgba(255,255,255,.06),rgba(255,255,255,.02));border:1px solid rgba(255,255,255,.12);border-radius:var(--r-lg);box-shadow:var(--shadow);overflow:hidden;backdrop-filter:blur(6px)}
.hm-bar{display:flex;align-items:center;gap:8px;padding:14px 18px;border-bottom:1px solid rgba(255,255,255,.1)}
.hm-bar i{width:11px;height:11px;border-radius:50%;background:rgba(255,255,255,.25);display:block}
.hm-bar span{margin-left:auto;font-size:.78rem;color:var(--on-dark-muted);font-weight:600}
.hm-list{padding:8px}
.hm-row{display:flex;gap:12px;align-items:flex-start;padding:13px 14px;border-radius:12px;transition:background .2s}
.hm-row:hover{background:rgba(255,255,255,.05)}
.hm-av{width:38px;height:38px;flex:none;border-radius:10px;display:grid;place-items:center;font-weight:700;font-size:.9rem;color:#fff}
.hm-body{min-width:0;flex:1}
.hm-top{display:flex;align-items:center;gap:8px}
.hm-from{font-weight:600;color:#fff;font-size:.92rem}
.hm-tag{font-size:.66rem;font-weight:700;letter-spacing:.04em;text-transform:uppercase;padding:3px 8px;border-radius:6px;margin-left:auto;white-space:nowrap}
.hm-tag.imp{background:rgba(255,176,32,.16);color:var(--amber);border:1px solid rgba(255,176,32,.35)}
.hm-tag.rep{background:rgba(236,48,19,.16);color:var(--primary-2);border:1px solid rgba(236,48,19,.35)}
.hm-tag.file{background:rgba(23,195,178,.14);color:var(--teal-2);border:1px solid rgba(23,195,178,.32)}
.hm-subj{color:var(--on-dark);font-size:.9rem;margin-top:2px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.hm-prev{color:var(--on-dark-muted);font-size:.82rem;margin-top:2px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.hm-draft{margin:6px 8px 10px;background:rgba(236,48,19,.1);border:1px solid rgba(236,48,19,.3);border-radius:12px;padding:12px 14px}
.hm-draft b{color:var(--primary-2);font-size:.72rem;font-weight:700;letter-spacing:.05em;text-transform:uppercase;display:flex;align-items:center;gap:7px}
.hm-draft b svg{width:14px;height:14px}
.hm-draft p{color:var(--on-dark);font-size:.86rem;margin:8px 0 0;line-height:1.5}

/* stats */
.stats{background:var(--ink-2);border-block:1px solid rgba(255,255,255,.07)}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr)}
.stat{padding:34px 20px;text-align:center;border-left:1px solid rgba(255,255,255,.07)}
.stat:first-child{border-left:none}
.stat b{display:block;font-family:var(--serif);font-weight:800;font-size:clamp(1.7rem,3vw,2.4rem);color:#fff;line-height:1}
.stat span{display:block;font-size:.8rem;letter-spacing:.03em;color:var(--on-dark-muted);margin-top:9px}

/* feature grid */
.features{background:var(--paper)}
.feat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:52px}
.feat{background:var(--paper);border:1px solid var(--line);border-radius:var(--r-lg);padding:30px 26px;transition:transform .3s var(--ease),box-shadow .3s,border-color .3s}
.feat:hover{transform:translateY(-5px);box-shadow:var(--shadow-sm);border-color:var(--primary)}
.feat-ic{width:52px;height:52px;border-radius:14px;background:linear-gradient(150deg,var(--primary),var(--primary-deep));color:#fff;display:grid;place-items:center;margin-bottom:18px}
.feat:nth-child(3n+2) .feat-ic{background:linear-gradient(150deg,var(--teal),#0e9c8e)}
.feat:nth-child(3n) .feat-ic{background:linear-gradient(150deg,var(--amber),#e0940a)}
.feat-ic svg{width:25px;height:25px}
.feat h3{font-size:1.16rem;margin-bottom:.4em}
.feat p{font-size:.95rem;margin:0}

/* how it works */
.how{background:var(--soft)}
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;margin-top:48px;counter-reset:s}
.step{position:relative;background:var(--paper);border:1px solid var(--line);border-radius:var(--r-lg);padding:28px 24px}
.step::before{counter-increment:s;content:"0" counter(s);font-family:var(--serif);font-weight:800;font-size:1.6rem;background:linear-gradient(90deg,var(--primary),var(--teal));-webkit-background-clip:text;background-clip:text;color:transparent;display:block;margin-bottom:12px}
.step h3{font-size:1.08rem}
.step p{font-size:.92rem;margin:0}

/* privacy band */
.band{background:var(--ink);color:var(--on-dark);position:relative;overflow:hidden}
.band::before{content:"";position:absolute;inset:0;background:radial-gradient(80% 120% at 90% 20%,rgba(236,48,19,.22),transparent 55%)}
.band-inner{position:relative;display:grid;grid-template-columns:1fr 1fr;gap:clamp(32px,5vw,64px);align-items:center}
.band h2{color:#fff}
.band .eyebrow{color:var(--teal-2)}
.band .eyebrow::before{background:var(--teal-2)}
.plist{list-style:none;padding:0;margin:22px 0 0;display:grid;gap:15px}
.plist li{display:flex;gap:13px;align-items:flex-start;font-size:.98rem;color:var(--on-dark)}
.plist .ck{flex:none;width:26px;height:26px;border-radius:8px;background:rgba(23,195,178,.16);border:1px solid rgba(23,195,178,.4);color:var(--teal-2);display:grid;place-items:center}
.plist .ck svg{width:15px;height:15px}

/* cta */
.cta{background:var(--paper)}
.cta-card{background:linear-gradient(140deg,var(--ink),var(--ink-2));border-radius:var(--r-lg);padding:clamp(36px,5vw,64px);text-align:center;position:relative;overflow:hidden;box-shadow:var(--shadow)}
.cta-card::before{content:"";position:absolute;inset:0;background:radial-gradient(70% 120% at 50% -10%,rgba(236,48,19,.3),transparent 60%)}
.cta-card>*{position:relative}
.cta-card h2{color:#fff;font-size:clamp(1.7rem,3.4vw,2.6rem)}
.cta-card p{color:var(--on-dark-muted);max-width:52ch;margin:0 auto 26px}

/* faq */
.faq{max-width:820px;margin:44px auto 0}
.faq details{background:var(--paper);border:1px solid var(--line);border-radius:14px;margin-bottom:12px;overflow:hidden}
.faq details[open]{border-color:var(--line-2)}
.faq summary{cursor:pointer;list-style:none;padding:20px 22px;font-family:var(--serif);font-weight:600;font-size:1.02rem;color:var(--heading);display:flex;justify-content:space-between;align-items:center;gap:16px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-size:1.5rem;color:var(--primary);transition:transform .2s;flex:none}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq .faq-a{padding:0 22px 20px;color:var(--body)}
.faq .faq-a p{margin:0 0 .7em}
.faq .faq-a p:last-child{margin:0}

/* page hero + prose (legal/contact) */
.page-hero{background:linear-gradient(180deg,var(--ink),var(--ink-2));color:var(--on-dark);padding:clamp(52px,7vw,88px) 0 clamp(40px,5vw,60px)}
.page-hero .breadcrumb{font-size:.84rem;color:var(--on-dark-faint);margin-bottom:16px;display:flex;gap:8px;align-items:center}
.page-hero .breadcrumb a{color:var(--on-dark-muted)}
.page-hero .breadcrumb a:hover{color:#fff}
.page-hero h1{color:#fff;font-size:clamp(2rem,4vw,3rem)}
.page-hero p{color:var(--on-dark-muted);max-width:60ch;margin:8px 0 0}
.prose{max-width:760px;margin-inline:auto}
.prose h2{font-size:1.5rem;margin:34px 0 12px}
.prose h2:first-child{margin-top:0}
.prose p,.prose li{font-size:1.02rem;color:var(--body)}
.prose ul{margin:0 0 18px;padding-left:22px}
.prose li{margin-bottom:8px}
.prose a{text-decoration:underline}
.callout{background:var(--soft);border:1px solid var(--line);border-left:3px solid var(--primary);border-radius:0 var(--r) var(--r) 0;padding:16px 20px;margin:22px 0;font-size:.98rem}
/* contact form */
.form-card{background:var(--paper);border:1px solid var(--line);border-radius:var(--r-lg);padding:clamp(26px,3.5vw,40px);box-shadow:var(--shadow-sm);max-width:640px;margin-inline:auto}
.field{margin-bottom:16px}
.field label{display:block;font-size:.82rem;font-weight:600;color:var(--heading);margin-bottom:7px}
.field input,.field textarea{width:100%;font-family:var(--sans);font-size:1rem;color:var(--ink);background:var(--canvas);border:1.5px solid var(--line-2);border-radius:11px;padding:13px 15px;transition:border-color .2s,box-shadow .2s}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 4px rgba(236,48,19,.14);background:#fff}
.field textarea{min-height:130px;resize:vertical}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:0 16px}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.form-note{font-size:.82rem;color:var(--muted);margin:8px 0 0}
.form-msg{display:none;padding:13px 16px;border-radius:11px;font-size:.94rem;font-weight:500;margin-bottom:16px}
.form-msg.ok{display:block;background:#e7f6ee;color:#1c6b3f;border:1px solid #b7e0c6}
.form-msg.err{display:block;background:#fdece9;color:#95331f;border:1px solid #f2c6bb}
@media(max-width:560px){.field-row{grid-template-columns:1fr}}

/* footer */
.site-footer{background:var(--ink);color:var(--on-dark-muted);padding:56px 0 28px}
.footer-top{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:36px;padding-bottom:34px;border-bottom:1px solid rgba(255,255,255,.09)}
.footer-brand .brand{color:#fff}
.footer-brand p{max-width:38ch;font-size:.92rem;margin:16px 0 0}
.footer-col h4{color:#fff;font-family:var(--sans);font-size:.76rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;margin:0 0 15px}
.footer-col a{display:block;color:var(--on-dark-muted);font-size:.92rem;padding:6px 0}
.footer-col a:hover{color:#fff}
.footer-bottom{padding-top:22px;display:flex;flex-wrap:wrap;gap:8px 24px;justify-content:space-between;font-size:.84rem;color:var(--on-dark-faint)}

/* responsive */
@media(max-width:920px){
  .nav,.header-cta .btn{display:none}
  .nav-toggle{display:block}
  .hero-inner,.band-inner{grid-template-columns:1fr}
  .hero-mock{max-width:520px}
  .feat-grid{grid-template-columns:1fr 1fr}
  .steps{grid-template-columns:1fr 1fr}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .stat{border-left:none;border-top:1px solid rgba(255,255,255,.07)}
  .stat:nth-child(-n+2){border-top:none}
  .footer-top{grid-template-columns:1fr 1fr}
}
@media(max-width:560px){
  .feat-grid,.steps,.footer-top{grid-template-columns:1fr}
  .stats-grid{grid-template-columns:1fr 1fr}
  .hero-cta .btn{width:100%}
}
@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important;scroll-behavior:auto!important}.reveal{opacity:1;transform:none}}

/* ---- brand logo (PNG lockup) ---- */
.brand-logo{display:block;height:30px;width:auto}
.header-inner .brand-logo{height:31px}
.footer-brand .brand-logo{height:30px}
@media(max-width:520px){.brand-logo{height:26px}}

/* ---- pricing ---- */
.price-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;max-width:840px;margin:44px auto 0}
.price-card{position:relative;display:flex;flex-direction:column;background:var(--paper);border:1px solid var(--line);border-radius:var(--r-lg);padding:34px 28px 30px;box-shadow:var(--shadow-sm)}
.price-card.featured{border:1.5px solid var(--primary);box-shadow:0 30px 64px -30px rgba(236,48,19,.5)}
.price-badge{position:absolute;top:-13px;left:50%;transform:translateX(-50%);background:var(--primary);color:#fff;font-size:.7rem;font-weight:700;letter-spacing:.05em;text-transform:uppercase;padding:6px 14px;border-radius:999px;white-space:nowrap;box-shadow:0 8px 20px -8px rgba(236,48,19,.7)}
.price-name{font-size:1.32rem;margin:0 0 6px}
.price-tag{color:var(--muted);font-size:.92rem;margin:0 0 18px;min-height:2.6em;line-height:1.4}
.price-amt{font-family:var(--serif);font-weight:800;font-size:2.8rem;color:var(--heading);line-height:1;margin:0 0 22px;letter-spacing:-.02em}
.price-amt .cur{font-size:1.25rem;vertical-align:super;margin-right:2px}
.price-amt .per{font-size:.92rem;font-weight:600;color:var(--muted);font-family:var(--sans);letter-spacing:0}
.price-feat{list-style:none;margin:0 0 26px;padding:0;display:flex;flex-direction:column;gap:12px}
.price-feat li{display:flex;gap:11px;align-items:flex-start;font-size:.94rem;color:var(--body);line-height:1.45}
.price-feat .ck{flex:none;width:20px;height:20px;border-radius:6px;background:rgba(236,48,19,.1);color:var(--primary);display:inline-flex;align-items:center;justify-content:center;margin-top:1px}
.price-feat .ck svg{width:13px;height:13px}
.btn-outline-dark{background:transparent;color:var(--heading);border-color:var(--line-2)}
.btn-outline-dark:hover{border-color:var(--primary);color:var(--primary-deep);transform:translateY(-2px)}
.price-foot{text-align:center;color:var(--muted);font-size:.9rem;margin:26px 0 0}
@media(max-width:640px){.price-grid{grid-template-columns:1fr;max-width:420px}}