:root {
  --header-height: 72px;
  --font-family: 'Inter', system-ui, sans-serif;
  --font-family-accent: 'Sora', 'Inter', system-ui, sans-serif;
  --color-primary: #2563eb;
  --color-primary-hover: #1e4fcc;
  --color-primary-light: #eff6ff;
  --color-primary-muted: #dbeafe;
  --color-accent: #10b981;
  --color-accent-hover: #0e9e73;
  --color-dark: #0f172a;
  --color-text: #111827;
  --color-text-muted: #6b7280;
  --color-muted: #9ca3af;
  --color-background: #f9fafb;
  --color-surface: #ffffff;
  --color-border: #e5e7eb;
  --gradient-hero: linear-gradient(180deg, #ffffff 0%, #f9fafb 100%);
  --transition-base: all 0.25s ease;
  --shadow-soft: 0 18px 40px rgba(37, 99, 235, 0.12);
  --shadow-subtle: 0 10px 24px rgba(17, 24, 39, 0.08);
}

body.nav-open { overflow: hidden; }

* { box-sizing: border-box; }

html, body { max-width: 100%; overflow-x: hidden; }

body {
  margin: 0;
  font-family: var(--font-family);
  color: var(--color-text);
  background-color: var(--color-background);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  padding-top: var(--header-height);
}
.hero-description { font-size: 1.1rem; margin: 0; max-width: 46rem; color: var(--color-text-muted); }

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

.font-sora {
  font-family: var(--font-family-accent);
}

button, .btn {
  font-family: inherit; font-size: 1rem;
  cursor: pointer; border: none;
  border-radius: 999px; padding: 0.9rem 2.2rem;
  transition: var(--transition-base);
  display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem;
}

::selection{
  color: #ffffff;
  background-color: var(--color-primary);
}

.btn-primary { background: var(--color-primary); color: #fff; }
.btn-primary:hover, .btn-primary:focus { background: var(--color-primary-hover); transform: translateY(-2px); text-decoration: none; box-shadow: 0 12px 24px rgba(37, 99, 235, 0.25); }

.btn-outline { border: 1px solid var(--color-border); background: #fff; color: var(--color-primary); }
.btn-outline:hover, .btn-outline:focus { background: var(--color-primary-light); color: var(--color-primary-hover); text-decoration: none; box-shadow: 0 10px 22px rgba(37, 99, 235, 0.16); }

.btn-outline-light { border: 1px solid #fff; background: transparent; color: #fff; }
.btn-outline-light:hover, .btn-outline-light:focus { background: #fff; color: var(--color-primary-hover); text-decoration: none; }

.btn-light { background: var(--color-accent); color: #fff; box-shadow: 0 12px 28px rgba(16, 185, 129, 0.25); }
.btn-light:hover, .btn-light:focus { background: var(--color-accent-hover); color: #fff; transform: translateY(-1px); text-decoration: none; }

.btn[role="button"] { text-decoration: none; }

/* ============ navbar ============ */
.site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  background: rgba(255,255,255,.95);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--color-border);
}

.nav-open .site-header {
  backdrop-filter: none;
  background: #fff;
  box-shadow: var(--shadow-subtle);
}
.navbar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 0.75rem 3vw; max-width: 1100px; margin: 0 auto; gap: 1.25rem;
  position: relative;
}
.brand { display: inline-flex; align-items: center; text-decoration: none; }
.brand-logo-img { height: 42px; width: auto; max-width: 100%; object-fit: contain; }
.nav-links { display: flex; gap: 1.5rem; align-items: center; }
.nav-links a { color: var(--color-text); font-weight: 500; position: relative; padding-bottom: .2rem; }
.nav-links a::after { content: ""; position: absolute; left: 0; bottom: -.25rem; width: 0; height: 2px; background: var(--color-primary); transition: var(--transition-base); }
.nav-links a:hover::after, .nav-links a:focus::after { width: 100%; }
.nav-toggle { background: var(--color-primary-light); border: 1px solid var(--color-border); display: none; color: var(--color-primary); padding: .65rem; border-radius: .85rem; transition: var(--transition-base); }
.nav-toggle:hover, .nav-toggle:focus-visible { background: #e0e7ff; outline: none; box-shadow: 0 10px 24px rgba(37, 99, 235, 0.18); }
.nav-toggle[aria-expanded="true"] { background: var(--color-primary); color: #fff; box-shadow: 0 12px 28px rgba(37, 99, 235, 0.3); }
.nav-toggle .nav-icon { width: 24px; height: 24px; display: inline-flex; align-items: center; justify-content: center; transition: opacity 0.2s ease, transform 0.2s ease; }
.nav-toggle[aria-expanded="true"] .nav-icon { color: var(--color-primary); }
.nav-toggle .nav-icon-close { display: none; }
.nav-toggle[aria-expanded="true"] .nav-icon-menu { display: none; }
.nav-toggle[aria-expanded="true"] .nav-icon-close { display: inline-flex; }
.nav-toggle[aria-expanded="true"] .nav-icon-close svg { transform: rotate(180deg); }

.nav-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.4);
  
  opacity: 0;
  visibility: hidden;
  transition: var(--transition-base);
  z-index: 900;
}
.nav-overlay.active { opacity: 1; visibility: visible; }
.nav-mobile-login { display: none; width: 100%; }
.nav-links .nav-mobile-login { color: #fff; }
/* ============ section wrapper ============ */
.hero { padding: 6rem 4vw; max-width: 1200px; margin: 0 auto; }

/* ============ hero gradient with curved bottom  ============ */
.hero-main {
  position: relative; width: 100%; max-width: none; margin: 0;
  min-height: clamp(640px, 92vh, 960px);
  padding: clamp(3rem, 6vw, 4rem) clamp(1.5rem, 6vw, 5rem) clamp(10rem, 20vw, 14rem);
  display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center;
  color: var(--color-text);
  background: var(--gradient-hero);
  isolation: isolate;
  overflow: visible;             /* allow the mock to overhang */
  border-bottom-left-radius: 40% 12%;
  border-bottom-right-radius: 40% 12%;
}

.hero-main::before {
  content: "";
  position: absolute; inset: 0;
  background: radial-gradient(60% 60% at 50% 25%, rgba(37,99,235,.12) 0%, rgba(37,99,235,.04) 40%, rgba(255,255,255,0) 70%);
  pointer-events: none; z-index: 0;
}

.hero-content {
  position: relative; z-index: 2;
  display: flex; flex-direction: column; align-items: center; gap: 1.25rem;
  max-width: min(90vw, 760px);
}
.hero-subtitle { text-transform: uppercase; letter-spacing: .14em; font-size: .95rem; margin: 0; font-weight: 600; color: var(--color-primary); }
.hero-main h1 { font-size: clamp(2.6rem, 3.8vw + 1rem, 3.8rem); margin: 0; line-height: 1.04; font-weight: 600; letter-spacing: -0.01em; }
.hero-description { font-size: 1.1rem; margin: 0; max-width: 46rem; color: var(--color-text-muted); }

/* animate texts */

.typewriter-heading { display: inline-flex; flex-direction: column; align-items: center; gap: 0.35rem; line-height: 1.2;}
.typewriter { position: relative; display: inline-block; min-height: 1.2em; padding-right: 0.22em; }
.typewriter.no-caret::after { display: none; }
.typewriter::after { display: none; }
/* === hero section final === */

/* 1) space under buttons so mock doesn’t crowd them */
.hero-actions {
  position: relative; z-index: 2;
  display: flex; gap: 1rem; flex-wrap: wrap; justify-content: center;
  margin-top: .75rem;
  margin-bottom: clamp(2rem, 4vw, 3rem);
}

/* 2) mock is half inside the curve and half outside */
.hero-visual {
  position: absolute;
  left: 50%; bottom: 0;
  transform: translate(-50%, 50%);    /* dips past the curve */
  width: min(84vw, 820px);
  z-index: 3;
  pointer-events: none;
}

.image-placeholder {
  width: 100%;
  aspect-ratio: 1112 / 654;
  background: url("https://lk.wissenglanz.in/i/041f7595-c679-494a-bfcb-5e5b3d0ab6b5.png") center/contain no-repeat;
  border: none;
  box-shadow: none;
  border-radius: 0;
  position: relative;
}

/* 3) clear visual separation from the next section */
.hero-main + section,
.hero-main + .hero,
.hero-main + div {
  margin-top: clamp(15rem, 14vw, 11rem);
}

/* breathing room under card bands (slightly tighter) */
.hero-features { margin-bottom: clamp(2rem, 4vw, 3rem); }
.hero-personas { margin-bottom: clamp(2rem, 4vw, 3rem); }
.hero-pricing { margin-bottom: clamp(2rem, 4vw, 3rem); }

/* ============ feature/persona/pricing ============ */
.hero-features { text-align: center; background: var(--color-surface); border-radius: 40px; box-shadow: var(--shadow-subtle); }
.section-intro h2 { font-size: clamp(2.2rem, 3vw + 1rem, 3rem); color: var(--color-primary); margin: 0; }
.section-theme { display: inline-block; margin-top: .75rem; font-weight: 700; color: var(--color-primary); letter-spacing: .08em; text-transform: uppercase; background: var(--color-primary-light); padding: 0.4rem 0.85rem; border-radius: 999px; }
.section-intro p { margin: 1.5rem auto 0; max-width: 48rem; color: var(--color-text-muted); }

.feature-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 2rem; margin-top: 3.5rem; }
.feature-card {
  background: #fff; border-radius: 22px; padding: 2.25rem 2rem; text-align: left;
  border: 1px solid var(--color-border); box-shadow: var(--shadow-subtle);
  transition: var(--transition-base); min-height: 250px;
}
.feature-card:hover { background: var(--color-primary-light); color: var(--color-text); transform: translateY(-8px); border-color: #d0defd; box-shadow: var(--shadow-soft); }
.feature-card:hover p { color: var(--color-text-muted); }
.feature-card h3 { color: var(--color-dark); margin: 1rem 0; font-size: 1.25rem; }
.feature-card p { margin: 0; color: var(--color-text-muted); }
.feature-card:hover h3 { color: var(--color-primary); }
.feature-card .icon-wrap {
  width: 56px; height: 56px; border-radius: 16px;
  background: var(--color-primary-light); color: var(--color-primary);
  display: grid; place-items: center; font-size: 1.25rem;
}
.feature-card:hover .icon-wrap { background: #e0ecff; color: var(--color-primary-hover); }

.hero-personas { border-radius: 40px; background: #fff; box-shadow: var(--shadow-subtle); }
.hero-personas .section-intro,
.hero-pricing .section-intro,
.hero-faq .section-intro { text-align: center; margin-left: auto; margin-right: auto; }
.hero-personas .section-intro p,
.hero-pricing .section-intro p,
.hero-faq .section-intro p { margin-left: auto; margin-right: auto; }

.persona-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 2rem; margin-top: 3rem; }
.persona-card {
  padding: 2.25rem; border-radius: 22px; background: #fff;
  border: 1px solid var(--color-border); box-shadow: var(--shadow-subtle);
  position: relative; transition: var(--transition-base);
}
.persona-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-soft); border-color: #d0defd; }
.persona-card:nth-child(odd){ transform: translateY(12px); }
.persona-card:nth-child(even){ transform: translateY(-12px); }
.persona-card h3 { margin: 0; font-size: 1.35rem; color: var(--color-dark); }

.hero-pricing {
  position: relative; z-index: 2; background: #fff; border-radius: 40px; box-shadow: var(--shadow-soft); }
.pricing-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 2rem; margin-top: 3rem; }
.pricing-card {
  padding: 3rem 2.5rem; border-radius: 28px; background: #fff;
  display: flex; flex-direction: column; gap: 1.5rem; position: relative; overflow: hidden;
  border: 1px solid var(--color-border); transition: var(--transition-base); box-shadow: var(--shadow-subtle);
}
.pricing-card:hover { background: var(--color-primary-light); transform: translateY(-10px); box-shadow: var(--shadow-soft); border-color: #d0defd; }
.pricing-card header h3 { margin: 0; font-size: 1.5rem; color: var(--color-dark); }
.price { font-size: 2.8rem; font-weight: 700; color: var(--color-primary); margin: .5rem 0 0; }
.price span { font-size: 1rem; color: var(--color-text-muted); font-weight: 500; }
.plan-note { margin: .75rem 0 0; color: var(--color-text-muted); }
.pricing-card ul { list-style: none; margin: 0; padding: 0; display: grid; gap: .75rem; }
.pricing-card ul li { padding-left: 1.5rem; position: relative; color: var(--color-text-muted); }
.pricing-card ul li::before { content: ""; position: absolute; left: 0; top: .65rem; width: 8px; height: 8px; border-radius: 50%; background: var(--color-accent); }
.plan-badge { position: absolute; top: 1.5rem; right: -3rem; transform: rotate(45deg); background: var(--color-accent); color: #ffffff; font-weight: 700; padding: .4rem 3.5rem; text-transform: uppercase; letter-spacing: .08em; }
.premium .plan-badge { background: #0ea5e9; color: #fff; }
.effective-rate { margin: auto 0 0; color: var(--color-text-muted); font-weight: 500; }
.pricing-footnote { text-align: center; margin-top: 3rem; color: var(--color-text-muted); }
.link-accent { color: var(--color-primary); font-weight: 600; text-decoration: underline; }



.hero-testimonials {
  display: grid; gap: 2.5rem;
  grid-template-columns: minmax(0, 1fr);
  overflow: hidden;  background: #fff;
  border-radius: 32px; box-shadow: var(--shadow-subtle); padding: clamp(3rem, 5vw, 4rem);
  position: relative; border: 1px solid var(--color-border);
}
.hero-testimonials::after {
  content: "";
  position: absolute;
  top: 15%;
  right: clamp(-120px, -12vw, -48px);
  transform: translateY(-50%);
  width: min(260px, 70vw);
  height: min(260px, 70vw);
  background: url("https://lk.wissenglanz.in/i/b9fb1b0f-c783-4ae3-9f46-4ab823129fd7.png") center/cover no-repeat;
  opacity: 0.56;
  pointer-events: none;
  z-index: 0;
}
.hero-testimonials > * { position: relative; z-index: 1; }
.testimonials-header { max-width: 640px; }
.testimonial-subtitle { font-weight: 600; font-size: 1rem; letter-spacing: .08em; text-transform: uppercase; margin: 0; color: var(--color-primary); }
.testimonial-title { font-weight: 700; font-size: clamp(2.3rem, 4vw + 1rem, 3.5rem); line-height: 1.1; margin: .75rem 0 0; color: var(--color-dark); }
.testimonial-slider {
  display: flex; align-items: stretch;
  gap: 1rem; position: relative; background: #f5f7fa; border-radius: 28px; padding: 1.25rem;
}
.testimonial-scroller {
  --slides-per-view: 1;
  --slide-gap: 1.5rem;
  display: flex; gap: var(--slide-gap); overflow-x: auto; overflow-y: visible;
  scroll-snap-type: x mandatory; scroll-behavior: smooth; width: 100%;
  padding: .25rem .25rem 1rem;
}
.testimonial-scroller::-webkit-scrollbar { display: none; }
.testimonial-scroller { -ms-overflow-style: none; scrollbar-width: none; }
.testimonial-card {
    background: #fff; border-radius: 28px; padding: 3.25rem 2.5rem 2.5rem; display: flex; flex-direction: column; gap: 1.25rem;
    position: relative; overflow: hidden;
    flex: 0 0 calc((100% - (var(--slides-per-view) - 1) * var(--slide-gap)) / var(--slides-per-view));
    scroll-snap-align: start;
  }
  .testimonial-card::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(37,99,235,0) 0%, rgba(37,99,235,.05) 100%); pointer-events: none; }
  .quote-mark {
    font-size: 5.2rem; line-height: 1; color: rgba(37,99,235,.15);
    position: absolute; top: 1.2rem; left: 1.5rem; display: block; pointer-events: none;
  }
.testimonial-text { font-size: 1.05rem; color: var(--color-text); margin: 0; }
.testimonial-name { font-weight: 700; color: var(--color-primary); margin: 0; letter-spacing: .01em; }
.slider-dots { display: flex; gap: .75rem; margin-top: .5rem; align-items: center; }
.slider-dot {
  width: 12px; height: 12px; border-radius: 50%; border: 1px solid var(--color-border);
  background: transparent; padding: 0; display: inline-flex; align-items: center; justify-content: center;
}
.slider-dot::after { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--color-muted); transition: var(--transition-base); }
.slider-dot[aria-current="true"]::after { background: var(--color-primary); transform: scale(1.1); }

.hero-faq { background: var(--color-surface); border-radius: 40px; box-shadow: var(--shadow-subtle); border: 1px solid var(--color-border); }
.faq-list { display: grid; gap: 1.5rem; margin-top: 3rem; }
.faq-item { background: #fff; border-radius: 20px; border: 1px solid var(--color-border); box-shadow: var(--shadow-subtle); overflow: hidden; }
.faq-question {
  width: 100%; background: transparent; padding: 1.5rem 2rem; font-size: 1.1rem; font-weight: 600;
  display: flex; align-items: center; justify-content: space-between; color: var(--color-dark);
}
.faq-answer { margin: 0; padding: 0 2rem 1.75rem; color: var(--color-text-muted); display: none; }
.faq-item.active .faq-answer { display: block; }
.faq-item.active .faq-question i { transform: rotate(180deg); }

/* cta */
.hero-cta { background: linear-gradient(120deg, #2563eb 0%, #1e4fcc 45%, #0e9e73 100%); color: #fff; border-radius: 36px; display: flex; align-items: center; justify-content: space-between; gap: 2rem; padding: 4rem; box-shadow: var(--shadow-soft); }
.hero-cta h2 { margin: 0 0 1rem; font-size: clamp(2rem, 3vw + 1rem, 4rem); }
.hero-cta p { margin: 0; color: rgba(255,255,255,.9); max-width: 34rem; }
.cta-actions { display: flex; gap: 1rem; flex-wrap: wrap; justify-content: flex-end; }
.cta-actions .btn { white-space: nowrap; }

/* contact form */
.contact-form-card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: 18px;
  padding: clamp(1.5rem, 3vw, 2.5rem);
  box-shadow: var(--shadow-subtle);
  display: grid;
  gap: 1.25rem;
}

.contact-form-card .form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
}

.contact-form-card .form-field span {
  font-weight: 600;
  color: var(--color-text);
}

.contact-form-card input,
.contact-form-card select,
.contact-form-card textarea {
  width: 100%;
  border-radius: 12px;
  border: 1px solid var(--color-border);
  padding: 0.85rem 1rem;
  font-family: inherit;
  font-size: 1rem;
  background: #fff;
}

.contact-form-card textarea {
  min-height: 140px;
  resize: vertical;
}

.contact-form-card input:focus,
.contact-form-card select:focus,
.contact-form-card textarea:focus {
  outline: 2px solid rgba(37, 99, 235, 0.2);
  border-color: transparent;
}

@media (min-width: 1024px) {
  .hero-testimonials { position: relative; overflow: visible; }
  .hero-testimonials::after {
    content: "";
    position: absolute;
    inset: 0 0 auto auto;
    width: min(370px, 25vw);
    height: min(370px, 30vw);
    background: url("https://lk.wissenglanz.in/i/b9fb1b0f-c783-4ae3-9f46-4ab823129fd7.png") center/cover no-repeat;
    opacity: 0.95;
    pointer-events: none;
  }
}

/* footer */
.site-footer { padding: 5rem 4vw 3rem; background: #fff; color: var(--color-text-muted); margin-top: 6rem; position: relative; border-top: 1px solid var(--color-border); }
.footer-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 2.5rem; max-width: 1200px; margin: 0 auto 3rem; }
.footer-logo { display: block; height: 46px; width: auto; margin-bottom: 1rem; }
.footer-column h4 { margin: 0 0 1rem; font-size: 1.1rem; color: var(--color-dark); }
.footer-column ul { list-style: none; margin: 0; padding: 0; display: grid; gap: .75rem; }
.footer-column a { color: var(--color-text-muted); }
.footer-column a:hover, .footer-column a:focus { color: var(--color-primary); }
.footer-social { display: flex; gap: 1rem; margin-top: 1.5rem; }
.footer-social a { display: flex; color: var(--color-text-muted); font-size: 1.25rem; transition: var(--transition-base); }
.footer-social a:hover, .footer-social a:focus { color: var(--color-primary); transition: color 200ms ease; }
.footer-bottom {
  max-width: 1200px; margin: 0 auto; display: flex; align-items: center; justify-content: center;
  text-align: center; gap: 1rem; border-top: 1px solid var(--color-border); padding-top: 1.5rem; position: relative;
  position: relative;
}
.footer-bottom-logo { display: inline-flex; align-items: center; gap: 0.5rem; }
.footer-bottom-logo img { height: 32px; width: auto; display: block; }
.footer-bottom p { margin: 0; color: var(--color-text-muted); }
.back-to-top {
  position: absolute; /* changed from fixed*/
  right: 2vw; background: var(--color-primary); color: #ffffff; border: none; border-radius: 25px;
  padding: 0.8rem 1rem; box-shadow: 0 10px 22px rgba(37, 99, 235, 0.25);
  cursor: pointer; z-index: 2; transition: all 0.3s ease; opacity: 0; pointer-events: none;
}

.back-to-top:hover { transform: translateY(-3px); background: var(--color-primary-hover); }

.back-to-top:hover, .back-to-top:focus { color: #ffffff; }

.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; }

/* ============ externally added X(twitter icon) ============ */
.footer-icon-x { width: 22px; height: 24px; display: inline-block;
    color: rgba(255,255,255,.85); /* default color */
    transition: color 200ms ease; /* smooth hover */
  }
  .footer-icon-x:hover {
    color: #ffffff; /* hover color */
  }

/* ============ responsive part ============ */
@media (max-width: 1024px) {
  .navbar { padding: 1rem 2.5vw; }
  .nav-links { position: fixed; top: calc(var(--header-height) + 0.5rem); right: 4vw; left: 4vw;
    background: #fff; box-shadow: var(--shadow-subtle); border-radius: 18px;
    flex-direction: column; padding: 1.25rem 1.5rem; min-width: min(360px, 92vw);
    opacity: 0; visibility: hidden; transform: translateY(-10px) scale(0.98); pointer-events: none;
    z-index: 905; border: 1px solid var(--color-border); }
  .nav-links a { padding: .5rem 0; width: 100%; }
  .nav-links a::after, .nav-links a:hover::after, .nav-links a:focus::after { display: none; }
  .nav-links.active { opacity: 1; visibility: visible; transform: translateY(0) scale(1); pointer-events: auto; }
  .nav-toggle { display: inline-flex; border-radius: 0; background: transparent; border: none; box-shadow: none; }
  .nav-toggle:hover, .nav-toggle:focus, .nav-toggle:focus-visible { background: transparent; box-shadow: none; }
  .nav-mobile-login { display: inline-flex; margin-top: 0.5rem; }

  .hero-main { padding: clamp(3rem, 5.5vw, 3.75rem) clamp(1.5rem, 6vw, 3.5rem) clamp(10rem, 24vw, 14rem); }
  .hero-content { max-width: min(92vw, 640px); }
  .hero-main h1 { font-size: clamp(2.8rem, 3.8vw + 1rem, 3.8rem); line-height: 1.15; font-weight: 700; letter-spacing: -0.01em; text-align: center; margin-top: 0.25rem; margin-bottom: 1.25rem; }
  .feature-grid, .pricing-grid, .persona-grid, .footer-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .cta-actions { justify-content: center; }
  .persona-card:nth-child(odd), .persona-card:nth-child(even) { transform: none; }
  .hero-visual { width: min(90vw, 680px); }
}

@media (max-width: 920px) {
  :root { --header-height: 68px; }
  .nav-login { display: none; }
  .navbar { gap: 1rem; }
  .brand-logo-img { height: 38px; }
}

@media (max-width: 768px) {
  .feature-grid, .persona-grid, .footer-grid { grid-template-columns: 1fr; }
  .pricing-grid { display: flex; overflow-x: auto; scroll-snap-type: x mandatory; gap: 1.25rem; padding: 0.25rem 0.5rem 0.5rem; }
  .pricing-grid::-webkit-scrollbar { display: none; }
  .pricing-grid { scrollbar-width: none; }
  .pricing-card {min-width: min(88vw, 440px); scroll-snap-align: start; }
  .hero { padding: 4.5rem 6vw; }
  .hero-main { padding: 3.25rem 1.5rem 7.5rem; min-height: clamp(520px, 95vh, 760px); }
  .hero-content { gap: 0.9rem; }
  .hero-main h1 { font-size: clamp(2.4rem, 6vw, 3.1rem); margin-bottom: 0.9rem; }
  .hero-actions { margin-top: 0.4rem; margin-bottom: clamp(1.25rem, 5vw, 2rem); }
  .hero-description { font-size: 1rem; }
  .hero-cta { flex-direction: column; align-items: flex-start; padding: 3rem 2rem; }
  .cta-actions { width: 100%; justify-content: flex-start; }
  .testimonial-title { font-size: 48px; line-height: 1.1; }
  .feature-card, .pricing-card, .testimonial-card { padding: 2rem; }
  .testimonial-card { padding: 3rem 1.75rem 2.25rem; }
  .quote-mark { font-size: 4.25rem; top: 0.9rem; left: 1.05rem; }
  .site-footer { padding: 4rem 6vw 2.5rem; }
  .footer-bottom { align-items: center; text-align: center; padding-right: 5rem; }
  .hero-visual { width: 92vw; }
  
}

@media (max-width: 480px) {
  .hero-main { padding: 3.25rem 1.5rem 7.5rem; min-height: clamp(520px, 95vh, 760px); }
  .hero-content { gap: 0.9rem; }
  .hero-main h1 { font-size: clamp(2.4rem, 6vw, 3.1rem); margin-bottom: 0.9rem;  }
  .hero-actions { margin-top: 0.4rem; margin-bottom: clamp(1.25rem, 5vw, 2rem); }
  .hero-subtitle { letter-spacing: .1em; font-size: .85rem; }
  .section-intro h2 {line-height: 2rem; font-size: clamp(1.5rem, 3vw + 1rem, 3rem); margin-top: 0.9rem; }
  .cta-actions .btn { white-space: nowrap; font-size: 0.95rem; padding: 0.85rem 1.6rem; }
  .testimonial-card { padding: 2.75rem 1.5rem 2rem; }
  .quote-mark { font-size: 3.9rem; top: 0.85rem; left: 0.95rem; }
  .section-theme {font-weight: 250; letter-spacing: .01em; text-transform: uppercase;}
  .section-intro p { font-size: 14px; letter-spacing: .01em; }
  .testimonial-title { font-size: 45px; line-height: 0.9; }
  .testimonial-subtitle { font-weight: 450; font-size: 28px; }
  .hero-cta h2 { font-size: clamp(1.5rem, 3vw + 1rem, 4rem); line-height: 1.3; }
  .hero-cta p { max-width: 34rem; font-size: 15px; }
  .footer-bottom p { font-size: 15px; }
  .persona-card h3 { font-size: 1.1rem; }
}

@media (max-width: 768px){
  .back-to-top{ display: none; }
  .footer-bottom { align-items: center; text-align: center; padding: 1.5rem clamp(1.5rem, 8vw, 5rem) 0; }
}

@media (max-width: 768px) {
  .hero-main + section,
  .hero-main + .hero,
  .hero-main + div {
    margin-top: 8rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  * { animation-duration: .01ms !important; animation-iteration-count: 1 !important;
      transition-duration: .01ms !important; scroll-behavior: auto !important; }
}

@media (hover: none) and (pointer: coarse) {
  /* this targets touch devices */
  a, button, .card {
    -webkit-tap-highlight-color: transparent;
  }

  .pricing-card:hover {
    background: #f5f7fa;
    transform: none;
    box-shadow: var(--shadow-subtle);
  }
}

/* ===== Auth pages ===== */
.auth-body {
  background: radial-gradient(circle at 20% 20%, rgba(37, 99, 235, 0.08), transparent 30%), var(--color-background);
}

.auth-shell {
  max-width: 1200px;
  margin: 0 auto;
  padding: clamp(5rem, 6vw, 6rem) clamp(1.5rem, 4vw, 3rem) clamp(4rem, 5vw, 5rem);
}

.auth-grid {
  display: grid;
  gap: clamp(2rem, 4vw, 3rem);
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  align-items: center;
}

.auth-intro h1 {
  margin: 0.35rem 0 0.75rem;
  font-size: clamp(2rem, 2vw + 1.2rem, 2.8rem);
  color: var(--color-dark);
}

.auth-muted {
  color: var(--color-text-muted);
  margin: 0 0 1rem;
}

.auth-list {
  list-style: none;
  padding: 0;
  margin: 1rem 0 1.5rem;
  display: grid;
  gap: 0.65rem;
  color: var(--color-text);
}

.auth-list li {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
}

.auth-links {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.auth-card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: 20px;
  padding: clamp(1.75rem, 3vw, 2.4rem);
  box-shadow: var(--shadow-subtle);
  display: grid;
  gap: 0.75rem;
}

.auth-card h2 {
  margin: 0;
  font-size: 1.5rem;
  color: var(--color-dark);
}

.auth-form {
  display: grid;
  gap: 1rem;
}

.auth-form .form-field {
  display: grid;
  gap: 0.4rem;
}

.auth-form label {
  font-weight: 600;
  color: var(--color-dark);
}

.auth-form .input,
.auth-card input[type="text"],
.auth-card input[type="password"],
.auth-card input[type="email"] {
  width: 100%;
  border-radius: 12px;
  border: 1px solid var(--color-border);
  padding: 0.75rem 0.95rem;
  font-family: inherit;
  font-size: 1rem;
  background: #fff;
}
.auth-card .form-control {
  width: 100%;
  border-radius: 12px;
  border: 1px solid var(--color-border);
  padding: 0.75rem 0.95rem;
  font-family: inherit;
  font-size: 1rem;
  background: #fff;
  box-shadow: none;
}

.auth-card .form-group,
.auth-card .form-row {
  margin-bottom: 1rem;
}

.auth-form .input:focus,
.auth-card input:focus {
  outline: 2px solid rgba(37, 99, 235, 0.2);
  border-color: transparent;
}

.auth-form-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.auth-remember {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--color-text-muted);
  font-size: 0.95rem;
}

.auth-link {
  color: var(--color-primary);
  text-decoration: none;
  font-weight: 600;
}

.auth-link:hover,
.auth-link:focus {
  color: var(--color-primary-hover);
}

.auth-alert {
  border-radius: 12px;
  background: var(--color-primary-light);
  color: var(--color-dark);
  padding: 0.9rem 1rem;
  border: 1px solid var(--color-border);
}