/* İstanbul Pazarlama × IBM Storage — açılış sayfası */

:root {
  --brand: #0a74ba;
  --brand-600: #075e98;
  --brand-700: #064c7c;
  --brand-50: #eaf4fb;
  --brand-100: #d5e9f6;
  --sky: #2f8cff;
  --red: #e2213a;
  --navy: #071b33;
  --navy-2: #0c2a4d;
  --ink: #0f1b2d;
  --text: #43536a;
  --muted: #6b7a90;
  --line: #dde5ee;
  --bg: #ffffff;
  --bg-alt: #f3f7fb;
  --ok: #138a52;
  --err: #c8243a;
  --radius: 14px;
  --radius-lg: 20px;
  --shadow: 0 18px 44px rgba(9, 45, 85, .12);
  --shadow-sm: 0 6px 18px rgba(9, 45, 85, .08);
  --header-h: 76px;
  --font: "Montserrat", "Segoe UI", Arial, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body {
  margin: 0;
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--brand); text-decoration: none; }
a:hover { color: var(--brand-600); }
h1, h2, h3 { color: var(--ink); margin: 0; line-height: 1.2; font-weight: 700; letter-spacing: -.01em; }
p { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }
button, input, select { font: inherit; }
:focus-visible { outline: 3px solid rgba(10, 116, 186, .45); outline-offset: 2px; border-radius: 6px; }

.sprite { position: absolute; width: 0; height: 0; overflow: hidden; }
.ic { width: 1.15em; height: 1.15em; flex: none; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }
.container { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 24px; }

.skip-link { position: absolute; left: 16px; top: -60px; z-index: 100; background: var(--navy); color: #fff; padding: 10px 16px; border-radius: 8px; }
.skip-link:focus { top: 12px; color: #fff; }

/* ---------- Butonlar ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .55em;
  padding: 13px 22px; border-radius: 10px; border: 2px solid transparent;
  font-weight: 600; font-size: 15px; line-height: 1.2; cursor: pointer; white-space: nowrap;
  transition: background-color .2s, color .2s, border-color .2s, box-shadow .2s, transform .2s;
}
.btn .ic { width: 1.1em; height: 1.1em; transition: transform .2s; }
.btn:hover .ic { transform: translateX(3px); }
.btn-primary { background: var(--brand); color: #fff; box-shadow: 0 8px 20px rgba(10, 116, 186, .28); }
.btn-primary:hover { background: var(--brand-600); color: #fff; box-shadow: 0 10px 24px rgba(10, 116, 186, .34); }
.btn-ghost { background: rgba(255, 255, 255, .7); color: var(--brand-700); border-color: var(--brand-100); }
.btn-ghost:hover { background: #fff; border-color: var(--brand); color: var(--brand-700); }
.btn-outline { background: transparent; color: var(--brand); border-color: var(--brand); }
.btn-outline:hover { background: var(--brand); color: #fff; }
.btn-white { background: #fff; color: var(--brand-700); }
.btn-white:hover { background: var(--brand-50); color: var(--brand-700); }
.btn-sm { padding: 10px 16px; font-size: 14px; }
.btn-lg { padding: 15px 26px; font-size: 16px; }
.btn-block { width: 100%; }

.text-link { display: inline-flex; align-items: center; gap: .45em; font-weight: 600; font-size: 15px; }
.text-link .ic { transition: transform .2s; }
.text-link:hover .ic { transform: translateX(3px); }

/* ---------- Üst bar ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255, 255, 255, .92);
  backdrop-filter: saturate(160%) blur(10px);
  -webkit-backdrop-filter: saturate(160%) blur(10px);
  border-bottom: 1px solid transparent;
  transition: border-color .2s, box-shadow .2s;
}
.site-header.is-stuck { border-bottom-color: var(--line); box-shadow: 0 4px 18px rgba(9, 45, 85, .06); }
.header-inner { height: var(--header-h); display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.brand-lockup { display: flex; align-items: center; gap: 16px; min-width: 0; }
.brand-lockup .logo-td { height: 22px; width: auto; }
.brand-lockup .logo-ibm { height: 34px; width: auto; }
.brand-lockup .logo-istpaz { height: 34px; width: auto; }
.lockup-divider { width: 1px; height: 30px; background: var(--line); flex: none; }
.logo-partner-link { display: block; flex: none; }
.header-actions { display: flex; align-items: center; gap: 18px; flex: none; }
.header-phone { display: inline-flex; align-items: center; gap: 8px; color: var(--ink); font-weight: 600; font-size: 14px; }
.header-phone .ic { color: var(--brand); }

/* ---------- Hero ---------- */
.hero { position: relative; padding: 64px 0 56px; background: linear-gradient(160deg, #e4f0fb 0%, #f1f7fd 46%, #ffffff 100%); }
.hero-bg { position: absolute; inset: 0; overflow: hidden; pointer-events: none; }
.hero-glow { position: absolute; border-radius: 50%; filter: blur(70px); opacity: .55; }
.hero-glow-1 { width: 620px; height: 620px; right: -160px; top: -220px; background: radial-gradient(circle, #8cc4ff 0%, rgba(140, 196, 255, 0) 70%); }
.hero-glow-2 { width: 520px; height: 520px; left: -200px; bottom: -260px; background: radial-gradient(circle, #a9d6f5 0%, rgba(169, 214, 245, 0) 70%); }
.hero-grid-lines {
  position: absolute; inset: 0;
  background-image: linear-gradient(rgba(10, 116, 186, .06) 1px, transparent 1px), linear-gradient(90deg, rgba(10, 116, 186, .06) 1px, transparent 1px);
  background-size: 48px 48px;
  -webkit-mask-image: radial-gradient(ellipse 70% 60% at 30% 30%, #000 30%, transparent 75%);
  mask-image: radial-gradient(ellipse 70% 60% at 30% 30%, #000 30%, transparent 75%);
}
.hero-grid { position: relative; display: grid; grid-template-columns: minmax(0, 1fr) 440px; gap: 56px; align-items: start; }
.hero-copy { padding-top: 12px; }
.hero-title { font-size: clamp(34px, 4.2vw, 50px); font-weight: 800; line-height: 1.12; letter-spacing: -.02em; }
.hero-title em { font-style: normal; color: var(--brand); }
.hero-lead { margin-top: 20px; font-size: 17px; max-width: 600px; }
.checklist { margin-top: 26px; display: grid; gap: 12px; max-width: 600px; }
.checklist li { display: flex; gap: 12px; align-items: flex-start; font-size: 15px; }
.checklist .ic { margin-top: 2px; width: 22px; height: 22px; padding: 4px; border-radius: 50%; background: var(--brand); color: #fff; stroke-width: 2.6; }
.checklist strong { color: var(--ink); font-weight: 700; }
.hero-actions { margin-top: 32px; display: flex; flex-wrap: wrap; gap: 14px; }

/* ---------- Form ---------- */
.hero-form-wrap { position: relative; scroll-margin-top: calc(var(--header-h) + 16px); }
.form-card { background: #fff; border-radius: var(--radius-lg); box-shadow: var(--shadow); border: 1px solid rgba(10, 116, 186, .1); padding: 28px 28px 24px; }
.form-head { margin-bottom: 18px; }
.form-kicker { display: inline-flex; align-items: center; gap: 8px; font-size: 12.5px; font-weight: 600; color: var(--brand); background: var(--brand-50); padding: 6px 11px; border-radius: 999px; }
.form-title { margin-top: 12px; font-size: 24px; }
.form-sub { margin-top: 6px; font-size: 14px; color: var(--muted); line-height: 1.55; }

.seg { margin: 0 0 18px; padding: 4px; border: 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 4px; background: var(--bg-alt); border-radius: 12px; }
.seg-opt { position: relative; cursor: pointer; }
.seg-opt input { position: absolute; opacity: 0; pointer-events: none; }
.seg-opt span { display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 4px; padding: 8px 6px; border-radius: 9px; font-size: 12.5px; font-weight: 600; color: var(--muted); text-align: center; line-height: 1.25; transition: background-color .2s, color .2s, box-shadow .2s; }
.seg-opt span .ic { width: 17px; height: 17px; }
.seg-opt input:checked + span { background: #fff; color: var(--brand-700); box-shadow: 0 2px 8px rgba(9, 45, 85, .1); }
.seg-opt input:focus-visible + span { outline: 3px solid rgba(10, 116, 186, .45); }

.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px 12px; }
.field { grid-column: 1 / -1; display: flex; flex-direction: column; gap: 5px; }
.field-half { grid-column: span 1; }
.field label { font-size: 12.5px; font-weight: 600; color: var(--ink); }
.field input, .field select {
  width: 100%; height: 44px; padding: 0 13px; border-radius: 9px; border: 1px solid #cfd9e4; background: #fbfcfe;
  color: var(--ink); font-size: 14.5px; transition: border-color .2s, box-shadow .2s, background-color .2s;
  -webkit-appearance: none; appearance: none;
}
.field input:hover, .field select:hover { border-color: #aebfd1; }
.field input:focus, .field select:focus { outline: none; border-color: var(--brand); background: #fff; box-shadow: 0 0 0 3px rgba(10, 116, 186, .15); }
.select-wrap { position: relative; }
.select-wrap select { padding-right: 36px; cursor: pointer; }
.select-wrap select:invalid { color: var(--muted); }
.select-wrap .ic { position: absolute; right: 12px; top: 50%; transform: translateY(-50%); color: var(--muted); pointer-events: none; }
.field-error { font-size: 12px; color: var(--err); min-height: 0; }
.field-error:empty { display: none; }
.is-invalid input, .is-invalid select { border-color: var(--err); background: #fff7f8; }

.checks { margin-top: 16px; display: grid; gap: 10px; }
.check { display: grid; grid-template-columns: 18px 1fr; gap: 10px; align-items: start; }
.check input { width: 18px; height: 18px; margin: 2px 0 0; accent-color: var(--brand); cursor: pointer; }
.check label { font-size: 12.5px; line-height: 1.5; color: var(--text); cursor: pointer; }
.check label a { font-weight: 600; text-decoration: underline; text-underline-offset: 2px; }
.check .field-error { grid-column: 2; }
.check.is-invalid label { color: var(--err); }

.btn-submit { margin-top: 18px; position: relative; height: 50px; font-size: 15.5px; }
.btn-submit .spinner { display: none; width: 18px; height: 18px; border-radius: 50%; border: 2.5px solid rgba(255, 255, 255, .4); border-top-color: #fff; animation: spin .8s linear infinite; }
.btn-submit.is-loading [data-submit-label] { opacity: .75; }
.btn-submit.is-loading .spinner { display: inline-block; }
.btn-submit:disabled { cursor: progress; }
@keyframes spin { to { transform: rotate(360deg); } }
.form-status { margin-top: 10px; font-size: 13px; color: var(--err); text-align: center; }
.form-status:empty { display: none; }

.form-success { text-align: center; padding: 34px 8px 28px; outline: none; }
.success-icon { width: 64px; height: 64px; margin: 0 auto 18px; display: grid; place-items: center; border-radius: 50%; background: #e6f6ee; color: var(--ok); }
.success-icon .ic { width: 30px; height: 30px; stroke-width: 2.4; }
.form-success h2 { font-size: 22px; }
.form-success p { margin-top: 10px; font-size: 14.5px; }

/* ---------- Rakamlar ---------- */
.stats { position: relative; margin-top: 56px; display: grid; grid-template-columns: repeat(4, 1fr); background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg); box-shadow: var(--shadow-sm); }
.stat { padding: 22px 24px; display: flex; flex-direction: column; gap: 4px; }
.stat + .stat { border-left: 1px solid var(--line); }
.stat strong { font-size: 30px; font-weight: 800; color: var(--brand); letter-spacing: -.02em; line-height: 1.1; }
.stat span { font-size: 13.5px; color: var(--muted); line-height: 1.45; }

/* ---------- Bölümler ---------- */
.section { padding: 92px 0; }
.section-alt { background: var(--bg-alt); }
.section-head { max-width: 760px; margin: 0 auto 48px; text-align: center; }
.section-head h2 { font-size: clamp(27px, 3vw, 36px); }
.section-head p { margin-top: 14px; font-size: 16.5px; }
.section-head-left { text-align: left; margin: 0; position: sticky; top: calc(var(--header-h) + 32px); }
.section-head-left .btn { margin-top: 24px; }

.question-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.question { position: relative; padding: 34px; border-radius: var(--radius-lg); border: 1px solid var(--line); background: linear-gradient(180deg, #fff 0%, #f8fbfe 100%); display: flex; flex-direction: column; gap: 14px; }
.question-icon, .product-icon, .audience-icon, .pp-icon {
  width: 52px; height: 52px; display: grid; place-items: center; border-radius: 14px; color: #fff; flex: none;
  background: linear-gradient(140deg, #2f9ae0 0%, var(--brand) 55%, var(--brand-700) 100%);
  box-shadow: 0 8px 18px rgba(10, 116, 186, .25);
}
.question-icon .ic, .product-icon .ic, .audience-icon .ic { width: 26px; height: 26px; }
.question-icon-alt, .product-icon-alt { background: linear-gradient(140deg, #4b6cff 0%, #2a46c9 55%, #1a2f8f 100%); box-shadow: 0 8px 18px rgba(42, 70, 201, .25); }
.question h3 { font-size: 21px; }
.question p { font-size: 15.5px; }
.question .text-link { margin-top: auto; padding-top: 6px; }

/* Ürünler */
.product-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; }
.product { scroll-margin-top: calc(var(--header-h) + 24px); background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 34px; display: flex; flex-direction: column; gap: 18px; box-shadow: var(--shadow-sm); }
.product-top { display: flex; align-items: center; gap: 16px; }
.product-tag { font-size: 12.5px; font-weight: 700; color: var(--brand); text-transform: uppercase; letter-spacing: .06em; }
.product h3 { font-size: 23px; margin-top: 2px; }
.product-desc { font-size: 15.5px; }
.product-list { display: grid; gap: 11px; }
.product-list li { display: flex; gap: 11px; align-items: flex-start; font-size: 14.5px; color: var(--ink); line-height: 1.5; }
.product-list .ic { margin-top: 1px; width: 20px; height: 20px; padding: 3px; border-radius: 50%; color: var(--brand); background: var(--brand-50); stroke-width: 2.6; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chips li { font-size: 12.5px; font-weight: 600; color: var(--brand-700); background: var(--brand-50); border: 1px solid var(--brand-100); padding: 5px 11px; border-radius: 999px; }
.product .btn { align-self: flex-start; margin-top: auto; }

/* Birlikte (koyu bölüm) */
.section-dark { position: relative; background: radial-gradient(900px 500px at 85% -10%, rgba(47, 140, 255, .35), transparent 60%), radial-gradient(700px 420px at -10% 110%, rgba(10, 116, 186, .45), transparent 60%), linear-gradient(160deg, var(--navy) 0%, var(--navy-2) 100%); color: #c9d7e8; }
.section-dark h2, .section-dark h3 { color: #fff; }
.together-head { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 40px; align-items: end; margin-bottom: 48px; }
.together-head h2 { font-size: clamp(27px, 3vw, 36px); }
.together-head p { margin-top: 14px; font-size: 16.5px; max-width: 640px; }
.together-stat { padding: 20px 26px; border-radius: var(--radius); background: rgba(255, 255, 255, .06); border: 1px solid rgba(255, 255, 255, .14); text-align: center; }
.together-stat strong { display: block; font-size: 40px; font-weight: 800; color: #fff; line-height: 1.05; }
.together-stat span { display: block; margin-top: 4px; font-size: 13px; color: #a9bfd9; max-width: 190px; }
.flow { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; counter-reset: flow; }
.flow-step { position: relative; padding: 26px 22px; border-radius: var(--radius); background: rgba(255, 255, 255, .05); border: 1px solid rgba(255, 255, 255, .12); }
.flow-step:not(:last-child)::after { content: ""; position: absolute; top: 49px; right: -16px; width: 12px; height: 12px; border-top: 2px solid rgba(140, 196, 255, .7); border-right: 2px solid rgba(140, 196, 255, .7); transform: rotate(45deg); }
.flow-icon { width: 46px; height: 46px; display: grid; place-items: center; border-radius: 12px; background: rgba(140, 196, 255, .14); color: #9fd0ff; }
.flow-icon .ic { width: 24px; height: 24px; }
.flow-no { position: absolute; top: 24px; right: 22px; font-size: 13px; font-weight: 700; color: rgba(255, 255, 255, .35); }
.flow-step h3 { margin-top: 18px; font-size: 19px; }
.flow-step p { margin-top: 8px; font-size: 14.5px; line-height: 1.55; }

/* Kimler için */
.audience-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.audience { padding: 32px; border-radius: var(--radius-lg); border: 1px solid var(--line); background: #fff; display: flex; flex-direction: column; gap: 20px; }
.audience-head { display: flex; gap: 16px; align-items: center; }
.audience-head h3 { font-size: 20px; }
.audience-head p { font-size: 14px; color: var(--muted); margin-top: 2px; }
.sectors { margin-top: 36px; display: flex; flex-wrap: wrap; align-items: center; justify-content: center; gap: 14px 18px; }
.sectors > p { font-size: 14px; font-weight: 700; color: var(--ink); }
.chips-lg li { font-size: 13.5px; padding: 7px 14px; background: #fff; }

/* İstanbul Pazarlama */
.partner-grid { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr); gap: 56px; align-items: start; scroll-margin-top: var(--header-h); }
.partner-copy h2 { font-size: clamp(27px, 3vw, 36px); }
.partner-copy > p { margin-top: 16px; font-size: 16.5px; }
.partner-points { margin-top: 28px; display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.partner-points li { display: flex; gap: 14px; align-items: flex-start; }
.pp-icon { width: 44px; height: 44px; border-radius: 12px; }
.pp-icon .ic { width: 22px; height: 22px; }
.partner-points strong { display: block; color: var(--ink); font-size: 15px; }
.partner-points li > div > span { display: block; font-size: 13.5px; color: var(--muted); line-height: 1.5; margin-top: 2px; }
.process { background: #fff; border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 32px; box-shadow: var(--shadow-sm); }
.process h3 { font-size: 20px; }
.steps { margin: 22px 0 26px; display: grid; gap: 0; }
.steps li { position: relative; display: flex; gap: 16px; padding-bottom: 20px; }
.steps li:last-child { padding-bottom: 0; }
.steps li:not(:last-child)::before { content: ""; position: absolute; left: 17px; top: 38px; bottom: 4px; width: 2px; background: var(--brand-100); }
.step-no { width: 36px; height: 36px; flex: none; display: grid; place-items: center; border-radius: 50%; background: var(--brand-50); border: 2px solid var(--brand); color: var(--brand-700); font-weight: 700; font-size: 14px; }
.steps strong { display: block; color: var(--ink); font-size: 15.5px; margin-top: 6px; }
.steps p { font-size: 14px; color: var(--muted); margin-top: 2px; }

/* SSS */
.faq-wrap { display: grid; grid-template-columns: minmax(0, .8fr) minmax(0, 1.2fr); gap: 56px; align-items: start; }
.faq { display: grid; gap: 12px; }
.faq details { border: 1px solid var(--line); border-radius: var(--radius); background: #fff; transition: border-color .2s, box-shadow .2s; }
.faq details[open] { border-color: var(--brand-100); box-shadow: var(--shadow-sm); }
.faq summary { list-style: none; cursor: pointer; display: flex; justify-content: space-between; align-items: center; gap: 16px; padding: 20px 22px; font-weight: 600; color: var(--ink); font-size: 16px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary .ic { width: 20px; height: 20px; color: var(--brand); transition: transform .25s; }
.faq details[open] summary .ic { transform: rotate(180deg); }
.faq details p { padding: 0 22px 22px; font-size: 15px; }

/* Kapanış CTA */
.final-cta { padding: 0 0 92px; }
.final-inner { display: flex; align-items: center; justify-content: space-between; gap: 32px; padding: 44px 48px; border-radius: 24px; color: #dcebf8; background: radial-gradient(600px 300px at 90% 0%, rgba(140, 196, 255, .45), transparent 60%), linear-gradient(130deg, var(--brand-700) 0%, var(--brand) 60%, #2a8fd6 100%); box-shadow: 0 20px 44px rgba(10, 116, 186, .28); }
.final-inner h2 { color: #fff; font-size: clamp(24px, 2.6vw, 32px); }
.final-inner p { margin-top: 10px; font-size: 16px; max-width: 620px; }

/* Footer */
.site-footer { background: var(--navy); color: #a9bdd4; padding: 52px 0 0; }
.footer-grid { display: flex; justify-content: space-between; align-items: center; gap: 32px; flex-wrap: wrap; padding-bottom: 36px; border-bottom: 1px solid rgba(255, 255, 255, .1); }
.brand-lockup-footer .lockup-divider { background: rgba(255, 255, 255, .22); }
.footer-contact { display: grid; grid-template-columns: auto auto; gap: 12px 36px; font-size: 14px; }
.footer-contact li { display: flex; gap: 10px; align-items: center; }
.footer-contact li:first-child { grid-column: 1 / -1; }
.footer-contact .ic { color: #8cc4ff; }
.footer-contact a { color: #dce8f5; }
.footer-contact a:hover { color: #fff; }
.footer-bottom { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; padding-top: 20px; padding-bottom: 24px; font-size: 13px; }
.footer-bottom a { color: #dce8f5; }

/* Mobil sabit CTA */
.mobile-cta { display: none; }

/* Kaydırma animasyonları */
.js .reveal { opacity: 0; transform: translateY(18px); transition: opacity .6s ease, transform .6s ease; }
.js .reveal.is-visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .js .reveal { opacity: 1; transform: none; transition: none; } }

/* ---------- Duyarlı ---------- */
@media (max-width: 1120px) {
  .hero-grid { grid-template-columns: minmax(0, 1fr) 410px; gap: 36px; }
  .header-phone span { display: none; }
  .flow { grid-template-columns: 1fr 1fr; }
  .flow-step:nth-child(2)::after { display: none; }
  .partner-grid, .faq-wrap { gap: 40px; }
}

@media (max-width: 960px) {
  :root { --header-h: 66px; }
  .hero { padding: 40px 0 40px; }
  .hero-grid { grid-template-columns: 1fr; gap: 36px; }
  .hero-copy { padding-top: 0; }
  .hero-form-wrap { max-width: 560px; }
  .stats { grid-template-columns: 1fr 1fr; margin-top: 40px; }
  .stat:nth-child(3) { border-left: 0; }
  .stat:nth-child(n+3) { border-top: 1px solid var(--line); }
  .question-grid, .product-grid, .audience-grid { grid-template-columns: 1fr; }
  .together-head { grid-template-columns: 1fr; gap: 24px; align-items: start; }
  .together-stat { justify-self: start; text-align: left; }
  .partner-grid, .faq-wrap { grid-template-columns: 1fr; }
  .section { padding: 72px 0; }
  .final-cta { padding-bottom: 72px; }
  .final-inner { flex-direction: column; align-items: flex-start; padding: 36px 32px; }
}

@media (max-width: 760px) {
  .container { padding: 0 18px; }
  .brand-lockup { gap: 10px; }
  .brand-lockup .logo-td { height: 15px; }
  .brand-lockup .logo-ibm { height: 24px; }
  .brand-lockup .logo-istpaz { height: 24px; }
  .lockup-divider { height: 22px; }
  .header-actions .btn { display: none; }
  .header-phone { width: 40px; height: 40px; justify-content: center; border-radius: 10px; background: var(--brand-50); }
  .header-phone .ic { width: 20px; height: 20px; }
  .hero-title { font-size: 31px; }
  .hero-lead { font-size: 16px; }
  .hero-actions .btn { flex: 1 1 100%; }
  .form-card { padding: 22px 18px 20px; }
  .seg-opt span { font-size: 11.5px; padding: 8px 4px; }
  .form-grid { grid-template-columns: 1fr; }
  .field-half { grid-column: 1 / -1; }
  .stat { padding: 18px; }
  .stat strong { font-size: 24px; }
  .question, .product, .audience, .process { padding: 24px; }
  .flow { grid-template-columns: 1fr; }
  .flow-step::after { display: none; }
  .partner-points { grid-template-columns: 1fr; }
  .section { padding: 60px 0; }
  .section-head { margin-bottom: 32px; }
  .section-head-left { position: static; }
  .final-inner { padding: 30px 22px; }
  .final-inner .btn { width: 100%; }
  .footer-grid { flex-direction: column; align-items: flex-start; }
  .footer-contact { grid-template-columns: 1fr; }
  .brand-lockup-footer .logo-td { height: 15px; }
  .site-footer { padding-bottom: 76px; }
  .mobile-cta {
    display: block; position: fixed; left: 0; right: 0; bottom: 0; z-index: 60;
    padding: 10px 16px calc(10px + env(safe-area-inset-bottom));
    background: rgba(255, 255, 255, .95); border-top: 1px solid var(--line);
    transform: translateY(110%); transition: transform .3s ease;
  }
  .mobile-cta.is-visible { transform: none; }
}

@media (max-width: 380px) {
  .brand-lockup .logo-td { height: 12px; }
  .brand-lockup .logo-ibm, .brand-lockup .logo-istpaz { height: 20px; }
  .hero-title { font-size: 28px; }
}