/* ============================================
   Sekizinci Renk — Dikkat ve Gelişim Kulübü
   ============================================ */

:root {
  --color-primary: #3D8B9E;
  --color-primary-dark: #2D6F80;
  --color-primary-light: #E8F4F8;
  --color-secondary: #6BAF8D;
  --color-secondary-light: #E5F5EC;
  --color-accent: #F0A07A;
  --color-accent-light: #FDF0E8;
  --color-text: #2C3E50;
  --color-text-muted: #5A6B7D;
  --color-white: #FFFFFF;
  --color-bg-alt: #F7FAFB;
  --color-border: #D4E5ED;
  --color-rules-bg: #1E4D5C;
  --color-rules-accent: #5BB5A0;
  --color-whatsapp: #25D366;
  --font: 'DM Sans', system-ui, -apple-system, sans-serif;
  --radius: 12px;
  --radius-lg: 20px;
  --shadow: 0 4px 24px rgba(45, 111, 128, 0.08);
  --shadow-lg: 0 8px 40px rgba(45, 111, 128, 0.12);
  --transition: 0.2s ease;
  --container: 1120px;
  --container-narrow: 720px;
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font);
  font-size: 1rem;
  line-height: 1.65;
  color: var(--color-text);
  background: var(--color-white);
  -webkit-font-smoothing: antialiased;
}

img, svg {
  display: block;
  max-width: 100%;
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition);
}

a:hover {
  color: var(--color-primary-dark);
}

.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 1.25rem;
}

.container--narrow {
  max-width: var(--container-narrow);
}

.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;
}

/* ---- Top Bar ---- */
.top-bar {
  background: var(--color-primary-dark);
  color: var(--color-white);
  padding: 0.6rem 0;
  font-size: 0.875rem;
}

.top-bar__inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
}

.top-bar__brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.top-bar__logo {
  font-weight: 700;
  letter-spacing: -0.02em;
}

.top-bar__divider {
  opacity: 0.4;
}

.top-bar__location {
  opacity: 0.85;
}

.top-bar__phone {
  color: var(--color-white);
  font-weight: 600;
  white-space: nowrap;
}

.top-bar__phone:hover {
  color: var(--color-secondary-light);
}

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  font-family: var(--font);
  font-size: 0.9375rem;
  font-weight: 600;
  line-height: 1.3;
  border-radius: var(--radius);
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition);
  text-align: center;
}

.btn--primary {
  background: var(--color-primary);
  color: var(--color-white);
  border-color: var(--color-primary);
}

.btn--primary:hover {
  background: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
  color: var(--color-white);
  transform: translateY(-1px);
  box-shadow: var(--shadow);
}

.btn--outline {
  background: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.btn--outline:hover {
  background: var(--color-primary-light);
  color: var(--color-primary-dark);
}

.btn--white {
  background: var(--color-white);
  color: var(--color-primary-dark);
  border-color: var(--color-white);
}

.btn--white:hover {
  background: var(--color-primary-light);
  color: var(--color-primary-dark);
  transform: translateY(-1px);
  box-shadow: var(--shadow-lg);
}

.btn--lg {
  padding: 1rem 1.75rem;
  font-size: 1rem;
}

.btn--full {
  width: 100%;
}

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

/* ---- Badges ---- */
.badge {
  display: inline-block;
  padding: 0.35rem 0.85rem;
  font-size: 0.8125rem;
  font-weight: 600;
  border-radius: 100px;
  letter-spacing: 0.01em;
}

.badge--primary {
  background: var(--color-primary);
  color: var(--color-white);
}

.badge--secondary {
  background: var(--color-secondary-light);
  color: var(--color-secondary);
  border: 1px solid rgba(107, 175, 141, 0.3);
}

.badge--accent {
  background: var(--color-accent-light);
  color: #C07050;
  border: 1px solid rgba(240, 160, 122, 0.4);
}

/* ---- Hero ---- */
.hero {
  padding: 2.5rem 0 3.5rem;
  background: linear-gradient(160deg, var(--color-primary-light) 0%, var(--color-white) 55%);
}

.hero__grid {
  display: grid;
  gap: 2.5rem;
  align-items: center;
}

.hero__badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.25rem;
}

.hero__eyebrow {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 0.75rem;
}

.hero__title {
  font-size: clamp(1.625rem, 4.5vw, 2.375rem);
  font-weight: 700;
  line-height: 1.25;
  color: var(--color-text);
  margin-bottom: 0.75rem;
  letter-spacing: -0.02em;
}

.hero__subtitle {
  font-size: 1.0625rem;
  font-weight: 500;
  color: var(--color-primary-dark);
  margin-bottom: 1rem;
}

.hero__text {
  color: var(--color-text-muted);
  margin-bottom: 1.75rem;
  max-width: 54ch;
}

.hero__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}

.hero__trust {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  padding: 0.875rem 1rem;
  background: rgba(255, 255, 255, 0.7);
  border-left: 3px solid var(--color-secondary);
  border-radius: 0 var(--radius) var(--radius) 0;
  max-width: 54ch;
}

.hero__image-card {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.hero__illustration {
  width: 100%;
  height: auto;
}

/* ---- Sections ---- */
.section {
  padding: 3.5rem 0;
}

.section--alt {
  background: var(--color-bg-alt);
}

.section--rules {
  background: var(--color-rules-bg);
  color: var(--color-white);
}

.section--form {
  background: linear-gradient(180deg, var(--color-white) 0%, var(--color-primary-light) 100%);
}

.section--closing {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: var(--color-white);
  text-align: center;
  padding: 4rem 0;
}

.section__title {
  font-size: clamp(1.375rem, 3.5vw, 1.875rem);
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: 1rem;
  letter-spacing: -0.02em;
}

.section__title--light {
  color: var(--color-white);
}

.section__lead {
  color: var(--color-text-muted);
  margin-bottom: 1.5rem;
  font-size: 1.0625rem;
}

.section__lead--light {
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: 2rem;
}

.section__note {
  color: var(--color-text-muted);
  font-size: 0.9375rem;
  margin-top: 1.5rem;
  padding: 1rem 1.25rem;
  background: var(--color-white);
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
}

.section--alt .section__note {
  background: var(--color-white);
}

.section__cta {
  margin-top: 2rem;
  text-align: center;
}

/* ---- Question List ---- */
.question-list {
  list-style: none;
  display: grid;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}

.question-list li {
  padding: 0.875rem 1.125rem 0.875rem 2.75rem;
  background: var(--color-white);
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
  position: relative;
  font-weight: 500;
}

.section--alt .question-list li {
  background: var(--color-white);
}

.question-list li::before {
  content: '?';
  position: absolute;
  left: 1rem;
  top: 50%;
  transform: translateY(-50%);
  width: 1.375rem;
  height: 1.375rem;
  background: var(--color-primary-light);
  color: var(--color-primary);
  border-radius: 50%;
  font-size: 0.75rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ---- Cards ---- */
.card-grid {
  display: grid;
  gap: 1rem;
}

.card-grid--5 {
  grid-template-columns: 1fr;
}

.card-grid--areas {
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
}

.card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.25rem;
  box-shadow: var(--shadow);
  transition: transform var(--transition), box-shadow var(--transition);
}

.card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.card__icon {
  width: 2rem;
  height: 2rem;
  background: var(--color-primary);
  color: var(--color-white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.875rem;
  margin-bottom: 0.75rem;
}

.card p {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
}

.area-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.125rem 1.25rem;
  font-weight: 600;
  font-size: 0.9375rem;
  color: var(--color-primary-dark);
  text-align: center;
  transition: all var(--transition);
}

.area-card:hover {
  background: var(--color-primary-light);
  border-color: var(--color-primary);
}

/* ---- Notice Box ---- */
.notice-box {
  margin-top: 1.5rem;
  padding: 1.125rem 1.25rem;
  background: var(--color-accent-light);
  border: 1px solid rgba(240, 160, 122, 0.35);
  border-radius: var(--radius);
  font-size: 0.9375rem;
  color: #7A4A30;
}

/* ---- Fit Boxes ---- */
.two-col {
  display: grid;
  gap: 1.5rem;
}

.fit-box {
  padding: 1.5rem;
  border-radius: var(--radius-lg);
  border: 2px solid;
}

.fit-box--yes {
  background: var(--color-secondary-light);
  border-color: rgba(107, 175, 141, 0.4);
}

.fit-box--no {
  background: #FEF5F3;
  border-color: rgba(224, 140, 120, 0.35);
}

.fit-box__title {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1.0625rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

.fit-box--yes .fit-box__title {
  color: #2D6B4A;
}

.fit-box--no .fit-box__title {
  color: #8B4A3A;
}

.fit-box ul {
  list-style: none;
  display: grid;
  gap: 0.625rem;
}

.fit-box li {
  padding-left: 1.25rem;
  position: relative;
  font-size: 0.9375rem;
  color: var(--color-text-muted);
}

.fit-box li::before {
  content: '•';
  position: absolute;
  left: 0;
  font-weight: 700;
}

.fit-box--yes li::before {
  color: var(--color-secondary);
}

.fit-box--no li::before {
  color: #D08070;
}

/* ---- Rules ---- */
.rules-grid {
  display: grid;
  gap: 1rem;
  margin-top: 1.5rem;
}

.rule-item {
  display: flex;
  gap: 1.25rem;
  align-items: flex-start;
  padding: 1.25rem 1.5rem;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--radius);
  border-left: 4px solid var(--color-rules-accent);
}

.rule-item--full {
  grid-column: 1 / -1;
}

.rule-item__num {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-rules-accent);
  flex-shrink: 0;
  line-height: 1.4;
}

.rule-item p {
  font-size: 1rem;
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.95);
}

.rule-item strong {
  color: var(--color-white);
}

/* ---- Highlight List ---- */
.highlight-list {
  list-style: none;
  display: grid;
  gap: 0.875rem;
  margin-top: 1.5rem;
}

.highlight-list li {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  padding: 1rem 1.25rem;
  background: var(--color-primary-light);
  border-radius: var(--radius);
  font-weight: 500;
  color: var(--color-primary-dark);
}

.highlight-list svg {
  flex-shrink: 0;
  margin-top: 0.15rem;
  stroke: var(--color-secondary);
}

/* ---- FAQ ---- */
.faq {
  display: grid;
  gap: 0.75rem;
}

.faq__item {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
}

.faq__question {
  padding: 1.125rem 1.25rem;
  font-weight: 600;
  font-size: 0.9375rem;
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  transition: background var(--transition);
}

.faq__question::-webkit-details-marker {
  display: none;
}

.faq__question::after {
  content: '+';
  font-size: 1.25rem;
  font-weight: 400;
  color: var(--color-primary);
  flex-shrink: 0;
  transition: transform var(--transition);
}

.faq__item[open] .faq__question::after {
  transform: rotate(45deg);
}

.faq__question:hover {
  background: var(--color-primary-light);
}

.faq__answer {
  padding: 0 1.25rem 1.125rem;
  color: var(--color-text-muted);
  font-size: 0.9375rem;
  line-height: 1.65;
}

/* ---- Form ---- */
.form {
  background: var(--color-white);
  padding: 2rem;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--color-border);
  margin-top: 1.5rem;
}

.form__group {
  margin-bottom: 1.25rem;
}

.form__row {
  display: grid;
  gap: 1.25rem;
}

.form label {
  display: block;
  font-weight: 600;
  font-size: 0.875rem;
  margin-bottom: 0.4rem;
  color: var(--color-text);
}

.form__hint {
  display: block;
  margin-top: 0.35rem;
  font-size: 0.8125rem;
  color: var(--color-text-muted);
}

.required {
  color: #D06050;
}

.form input[type="text"],
.form input[type="tel"],
.form input[type="number"],
.form select {
  width: 100%;
  padding: 0.75rem 1rem;
  font-family: var(--font);
  font-size: 1rem;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-white);
  color: var(--color-text);
  transition: border-color var(--transition), box-shadow var(--transition);
  -webkit-appearance: none;
  appearance: none;
}

.form select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%235A6B7D' d='M1 1l5 5 5-5'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  padding-right: 2.5rem;
}

.form input:focus,
.form select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(61, 139, 158, 0.15);
}

.form input:invalid:not(:placeholder-shown),
.form select:invalid:not([value=""]) {
  border-color: #E08070;
}

.form__checkboxes {
  border: none;
  margin: 1.5rem 0;
  display: grid;
  gap: 0.875rem;
}

.checkbox-label {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  font-size: 0.875rem;
  color: var(--color-text-muted);
  cursor: pointer;
  line-height: 1.5;
}

.checkbox-label input[type="checkbox"] {
  width: 1.125rem;
  height: 1.125rem;
  margin-top: 0.15rem;
  flex-shrink: 0;
  accent-color: var(--color-primary);
  cursor: pointer;
}

.form__error {
  padding: 0.875rem 1rem;
  background: #FEF0EE;
  border: 1px solid #E8B0A8;
  border-radius: var(--radius);
  color: #8B3A30;
  font-size: 0.875rem;
  margin-bottom: 1rem;
}

.form-success {
  text-align: center;
  padding: 3rem 2rem;
  background: var(--color-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--color-border);
  margin-top: 1.5rem;
}

.form-success__icon {
  width: 4rem;
  height: 4rem;
  background: var(--color-secondary-light);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.25rem;
  color: var(--color-secondary);
}

.form-success h3 {
  font-size: 1.375rem;
  margin-bottom: 0.75rem;
  color: var(--color-text);
}

.form-success p {
  color: var(--color-text-muted);
  margin-bottom: 1.5rem;
}

/* ---- WhatsApp Float ---- */
.whatsapp-float {
  position: fixed;
  bottom: 1.25rem;
  right: 1.25rem;
  z-index: 1000;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--color-whatsapp);
  color: var(--color-white);
  padding: 0.75rem 1.125rem;
  border-radius: 100px;
  box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4);
  font-weight: 600;
  font-size: 0.875rem;
  transition: transform var(--transition), box-shadow var(--transition);
}

.whatsapp-float:hover {
  color: var(--color-white);
  transform: translateY(-2px);
  box-shadow: 0 6px 28px rgba(37, 211, 102, 0.5);
}

.whatsapp-float svg {
  flex-shrink: 0;
}

/* ---- Footer ---- */
.footer {
  background: var(--color-text);
  color: rgba(255, 255, 255, 0.75);
  padding: 2.5rem 0;
  font-size: 0.875rem;
}

.footer__inner {
  display: grid;
  gap: 1.25rem;
}

.footer__brand strong {
  display: block;
  color: var(--color-white);
  font-size: 0.9375rem;
  margin-bottom: 0.25rem;
}

.footer__contact {
  display: flex;
  gap: 1.5rem;
}

.footer__contact a {
  color: var(--color-secondary-light);
  font-weight: 600;
}

.footer__contact a:hover {
  color: var(--color-white);
}

.footer__legal {
  font-size: 0.8125rem;
  opacity: 0.7;
  line-height: 1.6;
  padding-top: 0.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

/* ---- Responsive ---- */
@media (min-width: 600px) {
  .form__row {
    grid-template-columns: 1fr 1fr;
  }

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

  .two-col {
    grid-template-columns: 1fr 1fr;
  }
}

@media (min-width: 600px) {
  .card-grid--5 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 768px) {
  .hero {
    padding: 3.5rem 0 4.5rem;
  }

  .hero__grid {
    grid-template-columns: 1.1fr 0.9fr;
    gap: 3rem;
  }

  .section {
    padding: 4.5rem 0;
  }

  .whatsapp-float__text {
    display: inline;
  }
}

@media (min-width: 900px) {
  .card-grid--5 {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 767px) {
  .whatsapp-float__text {
    display: none;
  }

  .whatsapp-float {
    padding: 0.875rem;
    border-radius: 50%;
    width: 3.5rem;
    height: 3.5rem;
    justify-content: center;
  }

  .hero__cta {
    flex-direction: column;
  }

  .hero__cta .btn {
    width: 100%;
  }

  .form {
    padding: 1.5rem;
  }

  .card-grid--5 {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .top-bar__inner {
    flex-direction: column;
    text-align: center;
    gap: 0.35rem;
  }

  .hero__badges {
    justify-content: center;
  }
}