* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 90px;
}

body {
  margin: 0;
  font-family: Inter, Arial, sans-serif;
  color: #0c1830;
  background: #fff;
}

button,
input,
select,
textarea {
  font: inherit;
}

.container {
  width: min(1180px, calc(100% - 40px));
  margin: auto;
}

/* HEADER */

.topbar {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(3, 12, 27, .92);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(255, 255, 255, .08);
}

.nav {
  height: 78px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}

.brand img {
  display: block;
  width: 190px;
  height: 43px;
  object-fit: cover;
  object-position: center;
  background: #fff;
  border-radius: 4px;
}

.desktop-nav {
  display: flex;
  gap: 30px;
  margin-left: auto;
}

.desktop-nav a {
  color: #dbe6f7;
  text-decoration: none;
  font-size: 14px;
  font-weight: 600;
}

.desktop-nav a:hover {
  color: #fff;
}

/* BUTTONS */

.btn {
  border: 0;
  border-radius: 9px;
  padding: 13px 20px;
  font-weight: 700;
  cursor: pointer;
  transition: .2s;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-align: center;
}

.btn-primary {
  background: linear-gradient(135deg, #0869ff, #2c56d7);
  color: white;
  box-shadow: 0 10px 30px rgba(22, 92, 237, .24);
}

.btn-primary:hover {
  transform: translateY(-1px);
}

.btn-ghost {
  background: transparent;
  color: #fff;
  border: 1px solid rgba(255, 255, 255, .38);
}

.btn-ghost-dark {
  background: #eef3fb;
  color: #15325d;
}

.btn-lg {
  padding: 16px 23px;
}

.btn-block {
  width: 100%;
}

/* HERO */

.hero {
  position: relative;
  overflow: hidden;
  background: radial-gradient(
    circle at 75% 35%,
    #0d3775 0,
    #071a37 28%,
    #020916 68%
  );
  color: #fff;
  padding: 84px 0 88px;
}

.hero-glow {
  position: absolute;
  right: -140px;
  top: 100px;
  width: 520px;
  height: 520px;
  background: radial-gradient(circle, #1677ff55, transparent 65%);
  filter: blur(20px);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr .9fr;
  gap: 60px;
  align-items: center;
}

.eyebrow {
  display: inline-block;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .14em;
  color: #7caaff;
  margin-bottom: 14px;
}

.eyebrow.dark {
  color: #1f62d6;
}

.hero h1 {
  font-size: 58px;
  line-height: 1.03;
  margin: 0 0 24px;
  letter-spacing: -.04em;
}

.hero h1 span {
  color: #2d72ff;
}

.hero p {
  font-size: 18px;
  line-height: 1.72;
  color: #c6d5ea;
  max-width: 690px;
}

.hero-actions {
  display: flex;
  gap: 12px;
  margin-top: 30px;
}

.trust-row {
  display: flex;
  gap: 24px;
  margin-top: 24px;
  color: #aebbd0;
  font-size: 13px;
}

.hero-card {
  background: linear-gradient(
    180deg,
    rgba(255, 255, 255, .09),
    rgba(255, 255, 255, .04)
  );
  border: 1px solid rgba(255, 255, 255, .14);
  border-radius: 22px;
  padding: 28px;
  box-shadow: 0 30px 80px rgba(0, 0, 0, .28);
}

.mini-label {
  font-size: 11px;
  font-weight: 800;
  color: #9fbef7;
  letter-spacing: .13em;
}

.network {
  display: grid;
  grid-template-columns: 1fr 1.1fr 1fr;
  gap: 14px;
  align-items: center;
  margin-top: 28px;
}

.node,
.hub {
  padding: 16px 12px;
  border-radius: 12px;
  text-align: center;
}

.node {
  border: 1px solid rgba(255, 255, 255, .15);
  background: #071a34;
  font-size: 13px;
}

.source {
  grid-column: 1;
}

.hub {
  grid-column: 2;
  grid-row: 1 / 4;
  align-self: stretch;
  display: flex;
  flex-direction: column;
  justify-content: center;
  background: linear-gradient(145deg, #0a5eff, #183e99);
  box-shadow: 0 20px 45px rgba(0, 80, 255, .22);
}

.hub strong {
  font-size: 25px;
}

.hub small {
  margin-top: 7px;
  color: #dbe8ff;
}

.result {
  grid-column: 3;
}

/* SECTIONS */

.section {
  padding: 88px 0;
}

.section-light {
  background: #f8fafc;
}

.section-dark {
  background: #06152d;
  color: #fff;
}

.section-head {
  max-width: 760px;
}

.section-head.centered {
  text-align: center;
  margin: auto;
}

.section-head h2,
.about h2 {
  font-size: 42px;
  line-height: 1.14;
  letter-spacing: -.03em;
  margin: 0 0 18px;
}

.section-head p,
.about p {
  color: #66758b;
  line-height: 1.75;
  font-size: 17px;
}

/* HOW IT WORKS */

.comparison {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 24px;
  align-items: center;
  margin-top: 48px;
}

.compare-card {
  background: #fff;
  border: 1px solid #e6ebf2;
  border-radius: 18px;
  padding: 26px;
  box-shadow: 0 18px 45px rgba(15, 34, 68, .07);
}

.compare-card.featured {
  border-color: #7aa6ff;
  background: linear-gradient(180deg, #fff, #f3f7ff);
}

.compare-title {
  font-weight: 800;
  color: #2067df;
  font-size: 13px;
  letter-spacing: .08em;
}

.compare-title.muted {
  color: #7a8493;
}

.stack {
  display: grid;
  gap: 10px;
  margin-top: 18px;
}

.stack div {
  padding: 14px 16px;
  background: #f5f7fa;
  border-radius: 10px;
  font-weight: 700;
}

.stack span {
  display: block;
  font-size: 12px;
  color: #8a95a5;
  font-weight: 500;
  margin-top: 4px;
}

.brandbox {
  margin: 18px 0;
  background: #081c3e;
  color: #fff;
  padding: 28px;
  border-radius: 14px;
  font-size: 26px;
  font-weight: 800;
  text-align: center;
}

.result-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}

.result-list span {
  background: #e9f1ff;
  color: #184d9f;
  padding: 11px;
  border-radius: 9px;
  text-align: center;
  font-size: 13px;
  font-weight: 700;
}

.arrow {
  font-size: 34px;
  color: #4d78c8;
}

/* CORPORATE FEATURES */

.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  margin-top: 44px;
}

.feature {
  border: 1px solid rgba(255, 255, 255, .1);
  background: linear-gradient(
    180deg,
    rgba(255, 255, 255, .05),
    rgba(255, 255, 255, .02)
  );
  padding: 26px;
  border-radius: 17px;
}

.feature .icon {
  font-size: 31px;
  color: #3a7dff;
}

.feature h3 {
  margin: 17px 0 10px;
}

.feature p {
  color: #aebbd0;
  line-height: 1.6;
  font-size: 14px;
}

/* EXISTING CTA CARDS */

.split-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 22px;
}

.cta-card {
  padding: 34px;
  border-radius: 20px;
  border: 1px solid #dce6f5;
}

.soft-green {
  background: linear-gradient(145deg, #f7fffb, #eefaf5);
}

.soft-blue {
  background: linear-gradient(145deg, #f7fbff, #edf4ff);
}

.cta-card h2 {
  font-size: 33px;
  margin: 5px 0 12px;
}

.cta-card p {
  color: #69768a;
  line-height: 1.6;
}

.cta-card ul {
  padding-left: 18px;
  color: #3d4c60;
  line-height: 1.9;
}

/* ABOUT */

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 50px;
  align-items: center;
}

.about h2 {
  margin: 0;
}

/* FOOTER */

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 40px;
  padding: 48px 0 32px;
}

footer {
  background: #020b18;
  color: #dce6f3;
}

.footer-brand img {
  width: 200px;
  height: 48px;
  object-fit: cover;
  background: #fff;
  border-radius: 4px;
}

.footer-brand p {
  color: #8ea0b7;
}

.footer-grid > div {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-grid a {
  color: #92a2b8;
  text-decoration: none;
  font-size: 14px;
}

.copyright {
  border-top: 1px solid rgba(255, 255, 255, .08);
  padding: 20px 0 28px;
  color: #65768e;
  font-size: 12px;
}

/* MODALS */

.modal {
  position: fixed;
  inset: 0;
  display: none;
  z-index: 100;
}

.modal.open {
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 8, 20, .78);
  backdrop-filter: blur(6px);
}

.modal-panel {
  position: relative;
  z-index: 1;
  background: #fff;
  width: min(720px, calc(100% - 28px));
  max-height: 90vh;
  overflow: auto;
  border-radius: 20px;
  padding: 34px;
  box-shadow: 0 40px 120px rgba(0, 0, 0, .45);
  overscroll-behavior: contain;
}

.modal-large {
  width: min(850px, calc(100% - 28px));
}

.modal-close {
  position: absolute;
  right: 18px;
  top: 15px;
  border: 0;
  background: #edf2f8;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  font-size: 23px;
  cursor: pointer;
}

.modal h2 {
  font-size: 30px;
  margin: 4px 0 10px;
}

.modal-intro {
  padding-right: 24px;
}

.modal-intro p {
  color: #6d7788;
  line-height: 1.6;
}

.progress {
  height: 6px;
  background: #e7edf6;
  border-radius: 99px;
  overflow: hidden;
  margin-bottom: 26px;
}

.progress > div {
  height: 100%;
  width: 12.5%;
  background: #1c6cff;
  transition: .25s;
}

/* CORPORATE SURVEY */

.survey-step {
  display: none;
}

.survey-step.active {
  display: block;
}

.survey-step h3 {
  font-size: 19px;
  margin: 24px 0 12px;
}

.survey-step select,
.survey-step input[type=text],
.survey-step input[type=email],
.lead-form input,
.lead-form select {
  width: 100%;
  border: 1px solid #d9e1ec;
  border-radius: 10px;
  padding: 13px 14px;
  background: white;
  outline: none;
}

.survey-step select:focus,
.survey-step input:focus,
.lead-form input:focus,
.lead-form select:focus {
  border-color: #4e86ee;
  box-shadow: 0 0 0 3px #e8f0ff;
}

/* CHOICES */

.choice-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 9px;
}

.choice-grid.five {
  grid-template-columns: repeat(5, 1fr);
}

.choice-grid label,
.choice-list label {
  cursor: pointer;
  position: relative;
}

.choice-grid input,
.choice-list input {
  position: absolute;
  opacity: 0;
  width: 1px;
  height: 1px;
}

.choice-grid span,
.choice-list span {
  display: block;
  border: 1px solid #dbe3ed;
  border-radius: 10px;
  padding: 12px;
  text-align: center;
  background: #fff;
}

.choice-grid input:checked + span,
.choice-list input:checked + span {
  border-color: #2e74ef;
  background: #edf4ff;
  color: #1853ae;
}

.choice-grid input:focus-visible + span,
.choice-list input:focus-visible + span {
  outline: 3px solid #75a7ff;
  outline-offset: 2px;
}

.choice-grid input:disabled + span,
.choice-list input:disabled + span {
  opacity: .5;
  cursor: not-allowed;
}

.choice-list {
  display: grid;
  gap: 8px;
}

.choice-list.checkbox {
  grid-template-columns: 1fr 1fr;
}

.choice-list.checkbox span {
  text-align: left;
}

.field-label {
  display: block;
  margin: 20px 0 8px;
  font-weight: 600;
}

.rating-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.rating-grid label {
  display: grid;
  grid-template-columns: 1fr 95px;
  gap: 12px;
  align-items: center;
  border: 1px solid #e2e8f0;
  padding: 12px;
  border-radius: 10px;
  min-width: 0;
}

.rating-grid select {
  min-width: 0;
}

.hint {
  color: #7a8493;
  font-size: 13px;
}

.survey-actions {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  margin-top: 28px;
}

.hidden {
  display: none !important;
}

.inline-fields {
  display: grid;
  gap: 9px;
  margin: 18px 0;
}

.consent {
  display: flex;
  gap: 8px;
  align-items: flex-start;
  color: #667085;
  font-size: 13px;
  line-height: 1.5;
  margin: 13px 0;
}

.consent input {
  position: static;
  opacity: 1;
  width: auto;
  height: auto;
  flex-shrink: 0;
  margin-top: 3px;
}

.success-mark {
  width: 54px;
  height: 54px;
  border-radius: 50%;
  background: #e8f6ef;
  color: #1b9a5c;
  display: grid;
  place-items: center;
  font-size: 26px;
  font-weight: 800;
}

/* LEAD FORM */

.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.lead-form {
  display: grid;
  gap: 10px;
  margin-top: 22px;
}

/* TOAST */

.toast {
  position: fixed;
  right: 22px;
  bottom: 22px;
  background: #06152d;
  color: #fff;
  padding: 14px 18px;
  border-radius: 10px;
  opacity: 0;
  transform: translateY(10px);
  pointer-events: none;
  transition: .2s;
  z-index: 200;
}

.toast.show {
  opacity: 1;
  transform: translateY(0);
}

/* HONEYPOT */

.hp-field {
  position: absolute !important;
  left: -9999px !important;
  width: 1px !important;
  height: 1px !important;
  opacity: 0 !important;
}

.footer-version {
  opacity: .55;
  margin-left: 8px;
}

/* CUMULATEV LOGO DÜZELTMESİ */

.brand img {
  height: 42px !important;
  width: auto !important;
  object-fit: contain !important;
  background: #ffffff !important;
  padding: 8px 14px !important;
  border-radius: 10px !important;
  display: block;
}

.topbar .brand {
  display: flex;
  align-items: center;
}

/* =========================================================
   BİREYSEL / KURUMSAL KARTLARI
========================================================= */

.audience-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
  margin-top: 42px;
}

.audience-card {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 16px;
  padding: 36px;
  border: 1px solid #dce6f5;
  border-radius: 20px;
  background: #fff;
}

.audience-card.individual-card {
  background: linear-gradient(145deg, #f7fbff, #edf4ff);
}

.audience-card.corporate-card {
  background: linear-gradient(145deg, #f7fffb, #eefaf5);
}

.audience-kicker {
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .12em;
  color: #2067df;
}

.audience-card h3 {
  font-size: 28px;
  line-height: 1.2;
  letter-spacing: -.025em;
  margin: 0;
}

.audience-card p {
  color: #66758b;
  line-height: 1.7;
  margin: 0 0 8px;
}

.card-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: auto;
}

.audience-card > .btn {
  margin-top: auto;
}

/* BİREYSEL BÖLÜM */

.individual-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.individual-grid h2 {
  font-size: 42px;
  line-height: 1.14;
  letter-spacing: -.03em;
  margin: 0 0 18px;
}

.individual-grid p {
  color: #66758b;
  line-height: 1.75;
  font-size: 17px;
}

.individual-grid .hint {
  font-size: 13px;
  margin: 18px 0 24px;
}

.individual-benefits {
  display: grid;
  gap: 14px;
}

.individual-benefits > div {
  display: grid;
  gap: 8px;
  padding: 22px 24px;
  background: #fff;
  border: 1px solid #e1e8f2;
  border-radius: 14px;
}

.individual-benefits strong {
  font-size: 17px;
  color: #102b53;
}

.individual-benefits span {
  font-size: 14px;
  color: #66758b;
  line-height: 1.6;
}

/* ARAŞTIRMA KARTLARI */

.research-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
  margin-top: 42px;
}

.research-grid .cta-card {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  min-width: 0;
}

.research-grid .cta-card h2 {
  font-size: 26px;
  line-height: 1.2;
}

.research-grid .cta-card p {
  flex: 1;
}

.research-grid .cta-card .btn {
  margin-top: 12px;
}

/* =========================================================
   BİREYSEL ANKET
========================================================= */

.individual-survey-step {
  display: none;
}

.individual-survey-step.active {
  display: block;
}

.individual-survey-step h3 {
  font-size: 19px;
  margin: 24px 0 12px;
}

.individual-survey-step select,
.individual-survey-step input[type=text],
.individual-survey-step input[type=email],
.individual-survey-step input[type=tel],
.individual-survey-step textarea {
  width: 100%;
  border: 1px solid #d9e1ec;
  border-radius: 10px;
  padding: 13px 14px;
  background: #fff;
  outline: none;
  color: #0c1830;
}

.individual-survey-step textarea {
  resize: vertical;
  min-height: 100px;
}

.individual-survey-step select:focus,
.individual-survey-step input:focus,
.individual-survey-step textarea:focus {
  border-color: #4e86ee;
  box-shadow: 0 0 0 3px #e8f0ff;
}

.individual-survey-step .inline-fields {
  margin: 20px 0;
}

.scale-labels {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  font-size: 12px;
  color: #7a8493;
}

.legal-note {
  font-size: 12px;
  line-height: 1.6;
  color: #667085;
}

.legal-note a {
  color: #1f62d6;
}

/* KEYBOARD ACCESSIBILITY */

button:focus-visible,
a:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 3px solid #75a7ff;
  outline-offset: 3px;
}

/* =========================================================
   RESPONSIVE
========================================================= */

@media (max-width: 1100px) {

  .desktop-nav {
    gap: 15px;
  }

  .desktop-nav a {
    font-size: 12px;
  }

  .nav {
    gap: 16px;
  }

  .research-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

}

@media (max-width: 900px) {

  .desktop-nav {
    display: none;
  }

  .hero-grid,
  .about-grid,
  .split-cards {
    grid-template-columns: 1fr;
  }

  .hero h1 {
    font-size: 45px;
  }

  .feature-grid {
    grid-template-columns: 1fr 1fr;
  }

  .comparison {
    grid-template-columns: 1fr;
  }

  .arrow {
    transform: rotate(90deg);
    text-align: center;
  }

  .trust-row {
    flex-wrap: wrap;
  }

  .nav .btn {
    padding: 11px 13px;
    font-size: 12px;
  }

  .audience-grid,
  .individual-grid,
  .research-grid {
    grid-template-columns: 1fr;
  }

  .individual-grid {
    gap: 32px;
  }

  .audience-card {
    padding: 28px;
  }

}

@media (max-width: 600px) {

  html {
    scroll-padding-top: 76px;
  }

  .container {
    width: min(100% - 24px, 1180px);
  }

  .nav {
    height: 68px;
  }

  .brand img {
    width: 150px;
    height: 36px;
  }

  .hero {
    padding: 56px 0;
  }

  .hero h1 {
    font-size: 38px;
  }

  .hero p {
    font-size: 16px;
  }

  .hero-actions {
    flex-direction: column;
  }

  .network {
    grid-template-columns: 1fr;
  }

  .source,
  .hub,
  .result {
    grid-column: auto;
    grid-row: auto;
  }

  .feature-grid {
    grid-template-columns: 1fr;
  }

  .section {
    padding: 64px 0;
  }

  .section-head h2,
  .about h2 {
    font-size: 34px;
  }

  .choice-grid,
  .choice-grid.five {
    grid-template-columns: 1fr 1fr;
  }

  .choice-list.checkbox,
  .rating-grid,
  .two-col {
    grid-template-columns: 1fr;
  }

  .result-list {
    grid-template-columns: 1fr;
  }

  .modal-panel {
    padding: 28px 18px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
  }

  .audience-card {
    padding: 24px;
  }

  .audience-card h3 {
    font-size: 24px;
  }

  .individual-grid h2 {
    font-size: 34px;
  }

  .research-grid .cta-card {
    padding: 24px;
  }

  .research-grid .cta-card h2 {
    font-size: 25px;
  }

  .card-actions {
    flex-direction: column;
    align-items: stretch;
    width: 100%;
  }

  .card-actions .btn {
    width: 100%;
  }

  .modal-intro {
    padding-right: 18px;
  }

  .modal h2 {
    font-size: 25px;
  }

  .rating-grid label {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .rating-grid select {
    width: 100%;
  }

  .scale-labels {
    font-size: 11px;
  }

}