/* ===== SMS Uygulama — style.css ===== */
:root{
  --ink:#101418;
  --ink-2:#1A1F25;
  --ink-3:#232931;
  --line-dark:#2A3038;
  --line-dark-2:#3A424C;
  --paper:#F3F1EC;
  --white:#FFFFFF;
  --line:#DDD8CE;
  --line-2:#C9C3B7;
  --muted:#55595F;
  --muted-2:#5A5F66;
  --on-dark:#B7BCC2;
  --on-dark-2:#9AA0A7;
  --accent:#D4F74A;          /* vurgu rengi – tek yerden değiştirin */
  --accent-ink:#2A3200;
  --display:'Bricolage Grotesque',system-ui,sans-serif;
  --body:'IBM Plex Sans',system-ui,sans-serif;
  --mono:'JetBrains Mono',ui-monospace,monospace;
  --radius:22px;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:var(--body);background:var(--paper);color:var(--ink);-webkit-font-smoothing:antialiased}
h1,h2,h3{margin:0;font-family:var(--display);letter-spacing:-.03em}
p{margin:0}
a{color:inherit}
img,svg{display:block}

.container{width:100%;max-width:1440px;margin:0 auto;padding:0 96px}

/* ---------- ikonlar ---------- */
.ico{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:2.1;stroke-linecap:round;stroke-linejoin:round;flex-shrink:0}
.ico-accent{stroke:var(--accent);width:22px;height:22px}

/* ---------- butonlar ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;text-decoration:none;font-weight:600;border-radius:999px;transition:transform .15s ease,background-color .15s ease,border-color .15s ease}
.btn:hover{transform:translateY(-1px)}
.btn:focus-visible,summary:focus-visible,.nav-link:focus-visible{outline:2px solid var(--accent);outline-offset:3px}
.btn-sm{padding:12px 22px;font-size:15px}
.btn-lg{padding:18px 30px;font-size:17px}
.btn-accent{background:var(--accent);color:var(--ink)}
.btn-ghost{color:var(--paper);border:1px solid var(--line-dark-2);font-weight:500}
.btn-ghost:hover{border-color:var(--on-dark-2)}
.btn-dark{background:var(--ink);color:var(--paper);padding:16px 26px;font-size:16px}
.btn-outline-dark{color:var(--ink);border:1.5px solid var(--ink)}

/* ---------- eyebrow ---------- */
.eyebrow{font-family:var(--mono);font-size:13px;letter-spacing:.1em;color:var(--muted-2);display:flex;align-items:center;gap:10px}
.eyebrow-accent{color:var(--accent)}
.dot{width:8px;height:8px;border-radius:50%;background:var(--accent);animation:pulse 2s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.35}}

/* ---------- HERO ---------- */
.hero{background:var(--ink);color:var(--paper);padding-bottom:88px}
.nav{height:96px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line-dark)}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;color:var(--paper)}
.brand-mark{width:40px;height:40px;border-radius:10px;background:var(--accent);display:flex;align-items:center;justify-content:center}
.brand-mark svg{width:22px;height:22px;fill:none;stroke:var(--ink);stroke-width:2.2;stroke-linecap:round;stroke-linejoin:round}
.brand-mark-sm{width:32px;height:32px;border-radius:8px}
.brand-mark-sm svg{width:18px;height:18px}
.brand-name{font-family:var(--display);font-weight:800;font-size:22px;letter-spacing:-.02em}
.nav-links{display:flex;align-items:center;gap:40px;font-size:15px}
.nav-link{color:#C9CDD2;text-decoration:none}
.nav-link:hover{color:var(--paper)}
.nav-links .btn{margin-left:-16px}
.nav-links .btn + .btn{margin-left:-28px}

.hero-grid{display:flex;gap:72px;align-items:center;padding-top:88px}
.hero-copy{flex:1;display:flex;flex-direction:column;gap:32px}
.hero h1{font-weight:800;font-size:clamp(46px,6.2vw,88px);line-height:.95;letter-spacing:-.035em}
.lead{max-width:520px;font-size:19px;line-height:1.6;color:var(--on-dark)}
.hero-actions{display:flex;gap:16px;flex-wrap:wrap}
.checks{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:12px 28px;font-size:14px;color:var(--on-dark-2)}
.checks li{display:flex;align-items:center;gap:8px}
.checks .ico{width:16px;height:16px}

.panel-wrap{width:520px;flex-shrink:0;display:flex;flex-direction:column;gap:14px}
.panel{background:var(--ink-2);border:1px solid var(--line-dark);border-radius:24px;padding:28px;display:flex;flex-direction:column;gap:22px}
.panel-top{display:flex;justify-content:space-between;align-items:center}
.mono-label{font-family:var(--mono);font-size:12px;letter-spacing:.1em;color:#8C939B}
.timer{font-family:var(--mono);font-size:12px;font-weight:700;color:var(--ink);background:var(--accent);padding:5px 10px;border-radius:999px}
.panel-fields{display:flex;gap:12px}
.field{flex:1;background:var(--ink-3);border-radius:14px;padding:14px 16px;display:flex;flex-direction:column;gap:4px}
.field span,.field-label{font-size:12px;color:#8C939B}
.field-label{font-size:13px;margin-bottom:-12px}
.field strong{font-weight:600;font-size:16px}
.number{font-family:var(--mono);font-weight:700;font-size:38px;letter-spacing:.02em;white-space:nowrap}
.panel hr{border:0;height:1px;background:var(--line-dark);margin:0}
.bubble{background:var(--paper);color:var(--ink);border-radius:16px 16px 16px 4px;padding:16px 18px;font-size:15px;line-height:1.5;animation:pop .6s ease .2s both}
.code{font-family:var(--mono);font-weight:700;font-size:20px;background:var(--accent);padding:2px 8px;border-radius:6px}
@keyframes pop{from{opacity:0;transform:translateY(8px) scale(.98)}to{opacity:1;transform:none}}
.mini-cards{display:flex;gap:14px}
.mini{flex:1;background:var(--ink-2);border:1px solid var(--line-dark);border-radius:18px;padding:18px 20px;display:flex;align-items:center;gap:12px;font-size:14px;color:#C9CDD2}

.stats{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));border-top:1px solid var(--line-dark);margin-top:88px}
.stat{padding:40px 32px 0;display:flex;flex-direction:column;gap:8px;border-left:1px solid var(--line-dark)}
.stat:first-child{padding-left:0;border-left:0}
.stat strong{font-family:var(--display);font-weight:800;font-size:clamp(28px,4.4vw,64px);letter-spacing:-.03em}
.stat span{font-size:16px;color:var(--on-dark-2)}

/* ---------- BÖLÜMLER ---------- */
.section{padding-top:128px;padding-bottom:112px;display:flex;flex-direction:column;gap:56px}
.section-tight{padding-bottom:128px}
.section h2,.faq-head h2{font-weight:800;font-size:clamp(36px,4.2vw,60px);line-height:1}
.section-head{display:flex;justify-content:space-between;align-items:flex-end;gap:32px}
.section-head > div{display:flex;flex-direction:column;gap:16px}
.muted{max-width:380px;font-size:17px;line-height:1.6;color:var(--muted)}

.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}
.step{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:32px;display:flex;flex-direction:column;gap:20px;min-height:280px;transition:transform .2s ease,box-shadow .2s ease}
.step:hover{transform:translateY(-4px);box-shadow:0 14px 30px -18px rgba(16,20,24,.35)}
.step-no{font-family:var(--mono);font-weight:700;font-size:14px;color:var(--muted-2)}
.step-ico{width:36px;height:36px;fill:none;stroke:var(--ink);stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.step h3{font-weight:700;font-size:26px;letter-spacing:-.02em}
.step p{font-size:15px;line-height:1.6;color:var(--muted)}
.step-dark{background:var(--ink);border-color:var(--ink);color:var(--paper)}
.step-dark .step-no{color:var(--accent)}
.step-dark .step-ico{stroke:var(--accent)}
.step-dark p{color:var(--on-dark)}

.services{background:var(--white);border:1px solid var(--line);border-radius:28px;padding:64px;display:flex;gap:64px}
.services-copy{width:400px;flex-shrink:0;display:flex;flex-direction:column;gap:20px;align-items:flex-start}
.services-copy .btn{margin-top:8px}
.h2-sm{font-weight:800;font-size:clamp(30px,3.4vw,48px);line-height:1.02}
.chips{list-style:none;margin:0;padding:0;flex:1;display:flex;flex-wrap:wrap;gap:10px;align-content:flex-start}
.chips li{font-size:15px;font-weight:500;padding:11px 18px;border-radius:999px;background:var(--paper);border:1px solid var(--line)}
.chips .chip-accent{background:var(--accent);border-color:var(--accent);font-weight:600}

.faq-wrap{display:flex;gap:96px}
.faq-head{width:400px;flex-shrink:0;display:flex;flex-direction:column;gap:16px}
.faq{flex:1;border-top:1px solid var(--line-2)}
.faq details{border-bottom:1px solid var(--line-2)}
.faq summary{list-style:none;cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:24px;padding:28px 0;font-family:var(--display);font-weight:700;font-size:24px;letter-spacing:-.02em}
.faq summary::-webkit-details-marker{display:none}
.plus{position:relative;width:44px;height:44px;flex-shrink:0;border-radius:50%;border:1px solid var(--line-2);transition:background-color .2s ease}
.plus::before,.plus::after{content:"";position:absolute;left:50%;top:50%;width:16px;height:1.5px;background:var(--ink);transform:translate(-50%,-50%);transition:transform .25s ease}
.plus::after{transform:translate(-50%,-50%) rotate(90deg)}
details[open] .plus{background:var(--accent);border-color:var(--accent)}
details[open] .plus::after{transform:translate(-50%,-50%) rotate(0)}
.faq details p{padding:0 80px 28px 0;font-size:17px;line-height:1.7;color:var(--muted)}

.cta-wrap{padding-bottom:96px}
.cta{background:var(--accent);border-radius:28px;padding:72px;display:flex;justify-content:space-between;align-items:center;gap:48px}
.cta > div:first-child{display:flex;flex-direction:column;gap:16px}
.cta-title{font-weight:800;font-size:clamp(38px,4.6vw,64px);line-height:.98;letter-spacing:-.035em}
.cta p{font-size:18px;color:var(--accent-ink)}
.cta-actions{display:flex;flex-direction:column;gap:14px;width:300px}

.footer{background:var(--ink);color:var(--on-dark-2);font-size:14px}
.footer-inner{padding-top:48px;padding-bottom:48px;display:flex;justify-content:space-between;align-items:center;gap:24px}
.footer .brand-name{font-size:18px}
.footer-links{display:flex;gap:32px}
.footer-links a{color:#C9CDD2;text-decoration:none}
.footer-links a:hover{color:var(--paper)}

/* ---------- RESPONSIVE ---------- */
@media (max-width:1200px){
  .container{padding:0 48px}
  .hero-grid{gap:48px}
  .panel-wrap{width:440px}
  .number{font-size:30px}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr))}
  .services,.faq-wrap{flex-direction:column;gap:40px}
  .services-copy,.faq-head{width:auto}
}
@media (max-width:900px){
  .nav-link{display:none}
  .nav-links{gap:12px}
  .nav-links .btn,.nav-links .btn + .btn{margin-left:0}
  .hero-grid{flex-direction:column;align-items:stretch;padding-top:48px}
  .panel-wrap{width:100%}
  .section-head{flex-direction:column;align-items:flex-start}
  .cta{flex-direction:column;align-items:stretch;padding:48px}
  .cta-actions{width:100%}
  .footer-inner{flex-direction:column;align-items:flex-start}
}
@media (max-width:600px){
  .container{padding:0 20px}
  .hide-mobile{display:none}
  .nav{height:72px}
  .brand-mark{width:34px;height:34px}
  .brand-name{font-size:19px}
  .hero{padding-bottom:48px}
  .hero-copy{gap:24px}
  .lead{font-size:16px}
  .hero-actions .btn{flex:1}
  .hero-actions .btn-ghost{display:none}
  .panel{padding:20px;gap:16px;border-radius:20px}
  .panel-fields,.mini-cards{display:none}
  .panel hr,.field-label{display:none}
  .number{font-size:24px}
  .bubble{font-size:14px}
  .stats{margin-top:40px}
  .stat{padding:24px 0 0 12px}
  .stat strong{font-size:22px}
  .stat span{font-size:12px}
  .section{padding-top:64px;padding-bottom:56px;gap:28px}
  .section-tight{padding-bottom:64px}
  .muted{font-size:15px}
  .steps{grid-template-columns:1fr;gap:12px}
  .step{min-height:0;padding:22px;gap:10px;border-radius:18px}
  .step-ico{display:none}
  .step h3{font-size:21px}
  .step p{font-size:14px}
  .services{padding:28px 22px;border-radius:22px;gap:24px}
  .chips{gap:8px}
  .chips li{font-size:13px;padding:9px 14px}
  .faq-wrap{gap:20px}
  .faq summary{font-size:18px;padding:20px 0;gap:16px}
  .faq details p{padding:0 0 20px;font-size:15px}
  .cta{padding:32px 24px;border-radius:22px}
  .cta p{font-size:15px}
  .cta-wrap{padding-bottom:48px}
  .footer-inner{padding-top:32px;padding-bottom:32px;font-size:13px}
  .footer-links{flex-direction:column;gap:12px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  html{scroll-behavior:auto}
}