/* =========================================================
   Zehra Şahin – Biobellinda UI Kit · Website Styles
   ========================================================= */

/* ---------- HERO SLIDER ---------- */
.zs-slider {
  position: relative; overflow: hidden;
  background: var(--bg-muted);
}
.zs-slider-track {
  display: flex; width: 100%;
  transition: transform 680ms var(--ease-out);
}
.zs-slide {
  flex: 0 0 100%; min-height: 480px;
  display: grid; align-items: center;
  position: relative;
}
.zs-slide--slide-1,
.zs-slide--slide-2,
.zs-slide--slide-3 {
  background: #ffffff;
}
.zs-slide-inner {
  display: grid; grid-template-columns: 0.8fr 1.2fr; gap: 0;
  align-items: stretch; padding: 0;
}
.zs-slide-eyebrow { display: inline-block; margin-bottom: 14px; }
.zs-slide-title {
  font-family: var(--font-display); font-weight: 800;
  font-size: clamp(28px, 4vw, 46px); line-height: 1.1; letter-spacing: -0.02em;
  color: var(--fg-1); margin: 0 0 14px; max-width: 560px;
}
.zs-slide-text { font-size: 17px; line-height: 1.55; color: var(--fg-2); margin: 0 0 22px; max-width: 520px; }
.zs-slide-cta { align-self: start; }
.zs-slide-art { display: grid; place-items: center; align-self: stretch; }
.zs-slide-img {
  width: 100%;
  height: 100%;
  min-height: 480px;
  object-fit: cover;
  border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
  display: block;
}
.zs-slide-copy {
  padding: 48px 40px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.zs-slide-ph {
  display: grid; place-items: center; gap: 10px;
  width: 260px; height: 260px; border-radius: var(--radius-lg);
  background: rgba(255,255,255,0.5); border: 1.5px dashed rgba(0,0,0,0.15);
  color: var(--fg-3);
}
.zs-slide-ph small { font-size: 12px; letter-spacing: 0.08em; text-transform: uppercase; font-weight: 600; }

.zs-slider-arrow {
  position: absolute; top: 50%; transform: translateY(-50%);
  width: 44px; height: 44px; border-radius: 999px;
  background: rgba(255,255,255,0.9); border: 1px solid var(--border);
  display: grid; place-items: center; cursor: pointer; color: var(--fg-1);
  box-shadow: var(--shadow-sm);
  transition: all 180ms var(--ease-out);
}
.zs-slider-arrow:hover { background: #fff; box-shadow: var(--shadow-md); color: var(--brand-primary); }
.zs-slider-arrow--prev { left: 12px; }
.zs-slider-arrow--next { right: 12px; }
.zs-slider-arrow { opacity: 0.85; }
.zs-slider-arrow:hover { opacity: 1; }
@media (min-width: 1280px) {
  .zs-slider-arrow--prev { left: 24px; }
  .zs-slider-arrow--next { right: 24px; }
}

.zs-slider-dots {
  position: absolute; bottom: 20px; left: 50%; transform: translateX(-50%);
  display: flex; gap: 8px; z-index: 2;
}
.zs-slider-dot {
  width: 28px; height: 6px; border-radius: 999px; border: 0;
  background: rgba(0,0,0,0.15); cursor: pointer; padding: 0;
  transition: all 220ms var(--ease-out);
}
.zs-slider-dot.is-on { background: var(--brand-primary); width: 42px; }
.zs-slide--slide-3 ~ .zs-slider-dots .zs-slider-dot { background: rgba(255,255,255,0.35); }

@media (max-width: 900px) {
  .zs-slide-inner { grid-template-columns: 1fr; gap: 24px; padding-top: 40px; padding-bottom: 64px; }
  .zs-slide { min-height: 420px; }
  .zs-slide-art { order: -1; }
  .zs-slide-ph { width: 160px; height: 160px; }
  .zs-slider-arrow { display: none; }
}

/* ---------- HEADER ---------- */
.zs-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(252, 251, 248, 0.9);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: background 220ms var(--ease-out), border-color 220ms var(--ease-out), box-shadow 220ms var(--ease-out);
}
.zs-header.is-scrolled {
  background: rgba(252, 251, 248, 0.96);
  border-bottom-color: var(--border);
  box-shadow: var(--shadow-sm);
}
.zs-header-inner {
  display: flex; align-items: center; justify-content: space-between;
  padding-top: 14px; padding-bottom: 14px;
}
.zs-brand { display: flex; align-items: center; gap: 10px; text-decoration: none; }
.zs-brand:hover { text-decoration: none; }
.zs-brand-rep {
  font-size: 11px; color: var(--fg-3); font-weight: 600;
  letter-spacing: 0.08em; text-transform: uppercase;
  padding-left: 10px; border-left: 1px solid var(--border);
}
.zs-nav { display: flex; align-items: center; gap: 24px; }
.zs-nav a {
  color: var(--fg-2); font-weight: 500; font-size: 14px;
  text-decoration: none; transition: color 180ms var(--ease-out);
}
.zs-nav a:hover { color: var(--brand-primary); text-decoration: none; }
.zs-header-cta { display: flex; align-items: center; gap: 10px; }

/* ---------- BUTTONS ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 8px; justify-content: center;
  font-family: var(--font-display); font-weight: 600; font-size: 15px;
  padding: 12px 22px; border-radius: var(--radius-pill);
  border: 0; cursor: pointer; text-decoration: none;
  transition: all 180ms var(--ease-out);
  line-height: 1;
  white-space: nowrap;
}
.btn:hover { text-decoration: none; }
.btn-primary { background: var(--brand-primary); color: #fff; box-shadow: var(--shadow-sm); }
.btn-primary:hover { background: var(--brand-primary-dark); box-shadow: var(--shadow-md); transform: translateY(-1px); }
.btn-primary:active { transform: scale(0.98); }
.btn-primary:disabled { opacity: 0.7; cursor: not-allowed; transform: none; }
.btn-wa { background: var(--brand-whatsapp); color: #fff; }
.btn-wa:hover { background: var(--brand-whatsapp-dark); color: #fff; transform: translateY(-1px); }
.btn-ghost {
  background: transparent; color: var(--brand-primary);
  border: 1.5px solid var(--brand-primary);
}
.btn-ghost:hover { background: var(--brand-primary-soft); color: var(--brand-primary-dark); }

.zs-menu-btn {
  display: none;
  background: transparent; border: 1px solid var(--border); border-radius: var(--radius-sm);
  padding: 8px; cursor: pointer; color: var(--fg-1);
}

/* ---------- HERO ---------- */
.zs-hero {
  position: relative; overflow: hidden;
  background: linear-gradient(180deg, var(--brand-primary-soft) 0%, var(--bg-base) 100%);
  padding: 64px 0 80px;
}
.zs-hero-leaf { position: absolute; pointer-events: none; user-select: none; }
.zs-hero-leaf--1 { left: -60px; bottom: -40px; width: 280px; opacity: 0.35; }
.zs-hero-leaf--2 { right: -40px; top: -60px; width: 220px; opacity: 0.25; transform: rotate(140deg); }
.zs-hero-inner {
  display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 48px; align-items: center;
  position: relative;
}
.zs-hero-copy .eyebrow { display: inline-block; margin-bottom: 16px; }
.zs-hero-title {
  font-family: var(--font-display); font-weight: 800;
  font-size: clamp(36px, 5vw, 60px); line-height: 1.05; letter-spacing: -0.025em;
  color: var(--fg-1); margin: 0 0 20px;
}
.zs-hero-accent { color: var(--brand-primary); }
.zs-hero-lead { max-width: 520px; margin-bottom: 28px; }
.zs-hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 24px; }
.zs-hero-chips { list-style: none; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: 14px; }
.zs-hero-chips li {
  font-size: 14px; color: var(--fg-2); font-weight: 500;
  display: inline-flex; align-items: center;
}

.zs-hero-card {
  background: var(--bg-card); border-radius: var(--radius-lg);
  padding: 28px; box-shadow: var(--shadow-lg);
  position: relative;
}
.zs-hero-mini-head { display: flex; align-items: center; gap: 14px; margin-bottom: 16px; }
.zs-avatar {
  width: 56px; height: 56px; border-radius: 999px;
  background: linear-gradient(135deg, var(--brand-leaf), var(--brand-primary));
  color: #fff; display: grid; place-items: center;
  font-family: var(--font-display); font-weight: 700; font-size: 18px;
}
.zs-hero-mini-name { font-family: var(--font-display); font-weight: 700; font-size: 17px; color: var(--fg-1); }
.zs-hero-mini-role { font-size: 12px; color: var(--fg-3); }
.zs-hero-quote {
  margin: 0 0 16px; padding: 14px 16px;
  background: var(--brand-primary-soft); border-radius: var(--radius-md);
  font-size: 14px; line-height: 1.55; color: var(--fg-2); font-style: italic;
  border-left: 3px solid var(--brand-primary);
}
.zs-hero-phone {
  display: inline-flex; align-items: center; gap: 8px;
  color: var(--brand-primary); font-weight: 600;
  font-family: var(--font-display);
}

/* ---------- SECTION SHELL ---------- */
.zs-section { padding: 72px 0; }
.zs-section--soft { background: var(--bg-muted); }
.zs-section-head { max-width: 640px; margin: 0 auto 40px; text-align: center; }
.zs-section-head .eyebrow { display: inline-block; margin-bottom: 10px; }
.zs-section-head h2 { margin-bottom: 12px; }

/* ---------- ADVANTAGES ---------- */
.zs-adv-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
}
.zs-adv-card {
  background: var(--bg-card); border-radius: var(--radius-md);
  padding: 28px; box-shadow: var(--shadow-sm);
  transition: all 220ms var(--ease-out);
}
.zs-adv-card:hover { box-shadow: var(--shadow-md); transform: translateY(-3px); }
.zs-adv-icon {
  width: 48px; height: 48px; border-radius: 999px;
  display: grid; place-items: center; margin-bottom: 16px;
  background: var(--brand-primary-soft); color: var(--brand-primary);
}
.zs-adv-icon--percent { background: var(--brand-accent-soft); color: #a8811c; }
.zs-adv-card h3 { margin-bottom: 8px; font-size: 20px; }
.zs-adv-card p { color: var(--fg-3); font-size: 14.5px; line-height: 1.55; margin: 0; }

/* ---------- FORM ---------- */
.zs-form-container {
  display: grid; grid-template-columns: 1fr 1.1fr; gap: 56px; align-items: start;
}
.zs-form-side .eyebrow { display: inline-block; margin-bottom: 10px; }
.zs-form-side h2 { margin-bottom: 14px; }
.zs-form-perks { list-style: none; padding: 0; margin: 20px 0 0; }
.zs-form-perks li { padding: 6px 0; color: var(--fg-2); font-size: 15px; }

.zs-form {
  background: var(--bg-card); border-radius: var(--radius-lg);
  padding: 32px; box-shadow: var(--shadow-md);
  display: grid; gap: 16px;
}
.field label {
  display: block; font-family: var(--font-display); font-weight: 600;
  font-size: 13px; color: var(--fg-1); margin-bottom: 6px;
}
.field input, .field select {
  width: 100%; padding: 12px 14px;
  font-family: var(--font-body); font-size: 15px; color: var(--fg-1);
  background: var(--bg-card); border: 1.5px solid var(--border); border-radius: var(--radius-sm);
  transition: border-color 180ms var(--ease-out), box-shadow 180ms var(--ease-out);
}
.field input:focus, .field select:focus {
  outline: 0; border-color: var(--brand-primary);
  box-shadow: 0 0 0 3px rgba(47,122,58,0.12);
}
.field.error input, .field.error select { border-color: var(--error); }
.field .hint { font-size: 12px; color: var(--fg-3); margin-top: 6px; }
.field.error .hint { color: var(--error); }

.zs-form-submit { margin-top: 8px; justify-self: stretch; padding: 14px 22px; }
.zs-form-fine { font-size: 12px; color: var(--fg-3); margin: 0; line-height: 1.5; }
.zs-form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.zs-form textarea {
  width: 100%; padding: 12px 14px; resize: vertical; min-height: 72px;
  font-family: var(--font-body); font-size: 15px; color: var(--fg-1);
  background: var(--bg-card); border: 1.5px solid var(--border); border-radius: var(--radius-sm);
  transition: border-color 180ms var(--ease-out), box-shadow 180ms var(--ease-out);
}
.zs-form textarea:focus { outline: 0; border-color: var(--brand-primary); box-shadow: 0 0 0 3px rgba(47,122,58,0.12); }
.field .req { color: var(--error); margin-left: 2px; }
.zs-form-note {
  margin-top: 20px; padding: 12px 14px;
  background: var(--brand-primary-soft); border-left: 3px solid var(--brand-primary);
  border-radius: var(--radius-sm); font-size: 13px; line-height: 1.5; color: var(--fg-2);
}
@media (max-width: 540px) { .zs-form-row { grid-template-columns: 1fr; } }

.zs-form-success {
  max-width: 520px; margin: 0 auto; text-align: center;
  background: var(--bg-card); padding: 48px 32px;
  border-radius: var(--radius-lg); box-shadow: var(--shadow-md);
}
.zs-success-icon {
  width: 72px; height: 72px; margin: 0 auto 20px;
  border-radius: 999px; background: var(--brand-primary-soft); color: var(--brand-primary);
  display: grid; place-items: center;
}

/* ---------- CERTIFICATIONS ---------- */
.zs-cert-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
}
.zs-cert-card {
  background: var(--bg-card); border-radius: var(--radius-md);
  padding: 28px; text-align: center; box-shadow: var(--shadow-sm);
  transition: all 220ms var(--ease-out);
}
.zs-cert-card:hover { box-shadow: var(--shadow-md); transform: translateY(-3px); }
.zs-cert-card img { display: block; margin: 0 auto 14px; }
.zs-cert-card h4 { margin-bottom: 8px; font-size: 17px; }
.zs-cert-card p { color: var(--fg-3); font-size: 13.5px; line-height: 1.5; margin: 0; }

/* ---------- FAQ ---------- */
.zs-faq-container { display: grid; grid-template-columns: 1fr 1.3fr; gap: 56px; align-items: start; }
.zs-faq-head { text-align: left; margin: 0; }
.zs-faq-head .lead { max-width: none; }
.zs-faq {
  background: var(--bg-card); border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm); overflow: hidden;
}
.zs-faq-item { border-bottom: 1px solid var(--border); }
.zs-faq-item:last-child { border-bottom: 0; }
.zs-faq-q {
  width: 100%; background: transparent; border: 0; cursor: pointer;
  padding: 18px 22px; display: flex; justify-content: space-between; align-items: center;
  font-family: var(--font-display); font-weight: 600; font-size: 15.5px; color: var(--fg-1);
  text-align: left;
}
.zs-faq-q:hover { background: var(--brand-primary-soft); }
.zs-faq-ic {
  color: var(--brand-primary); font-size: 22px; font-weight: 300;
  transition: transform 220ms var(--ease-out);
}
.zs-faq-item.is-open .zs-faq-ic { transform: rotate(45deg); }
.zs-faq-a {
  display: grid; grid-template-rows: 0fr;
  transition: grid-template-rows 320ms var(--ease-out);
}
.zs-faq-a > div {
  overflow: hidden; padding: 0 22px;
  font-size: 14.5px; line-height: 1.6; color: var(--fg-2);
}
.zs-faq-item.is-open .zs-faq-a { grid-template-rows: 1fr; }
.zs-faq-item.is-open .zs-faq-a > div { padding-bottom: 20px; }

/* ---------- FOOTER ---------- */
.zs-footer { background: var(--bg-dark); color: #cfd6cf; padding: 56px 0 0; }
.zs-footer-inner {
  display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 40px;
  padding-bottom: 40px;
}
.zs-footer-brand p { color: #9fab9f; font-size: 14px; line-height: 1.55; margin-top: 14px; max-width: 320px; }
.zs-footer-brand img { filter: brightness(0) invert(1); opacity: 0.9; }
.zs-footer-col h5 {
  font-family: var(--font-display); font-weight: 700; font-size: 14px;
  color: #fff; margin: 0 0 14px; text-transform: uppercase; letter-spacing: 0.08em;
}
.zs-footer-col a {
  display: flex; align-items: center; gap: 8px;
  color: #9fab9f; font-size: 14px; padding: 6px 0;
  text-decoration: none; transition: color 180ms var(--ease-out);
}
.zs-footer-col a:hover { color: #fff; text-decoration: none; }
.zs-footer-legal {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding: 20px 0 24px; color: #6b7669; font-size: 12px;
}

/* ---------- FAB ---------- */
.zs-fab {
  position: fixed; right: 20px; bottom: 20px; z-index: 40;
  display: inline-flex; align-items: center; gap: 10px;
  padding: 14px 20px 14px 16px; border-radius: 999px;
  background: var(--brand-whatsapp); color: #fff;
  font-family: var(--font-display); font-weight: 600; font-size: 14.5px;
  box-shadow: 0 12px 32px rgba(37, 211, 102, 0.35), var(--shadow-md);
  text-decoration: none; transition: all 180ms var(--ease-out);
}
.zs-fab:hover { background: var(--brand-whatsapp-dark); color: #fff; text-decoration: none; transform: translateY(-2px); }
.zs-fab-pulse {
  position: absolute; inset: 0; border-radius: 999px;
  box-shadow: 0 0 0 0 rgba(37, 211, 102, 0.5);
  animation: zs-pulse 2.2s infinite;
}
@keyframes zs-pulse { to { box-shadow: 0 0 0 20px rgba(37,211,102,0); } }

/* ---------- RESPONSIVE ---------- */
@media (max-width: 900px) {
  .zs-hero-inner { grid-template-columns: 1fr; gap: 32px; }
  .zs-hero { padding: 48px 0 56px; }
  .zs-form-container, .zs-faq-container { grid-template-columns: 1fr; gap: 32px; }
  .zs-footer-inner { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
  .hide-mobile { display: none; }
  .zs-menu-btn { display: inline-flex; }
  .zs-nav {
    position: absolute; top: 100%; left: 0; right: 0;
    background: var(--bg-base); border-top: 1px solid var(--border);
    flex-direction: column; align-items: stretch; gap: 0; padding: 8px 20px;
    max-height: 0; overflow: hidden; transition: max-height 320ms var(--ease-out);
  }
  .zs-nav.is-open { max-height: 400px; padding-top: 12px; padding-bottom: 12px; }
  .zs-nav a { padding: 12px 0; border-bottom: 1px solid var(--border); }
  .zs-nav a:last-child { border-bottom: 0; }
  .zs-brand-rep { display: none; }
  .zs-section { padding: 56px 0; }
  .zs-footer-inner { grid-template-columns: 1fr; gap: 32px; }
  .zs-form { padding: 24px; }
  .zs-fab-label { display: none; }
  .zs-fab { padding: 14px; }
}