/* ============================================================
   NIMBUSCLOUD — STYLES
   ============================================================ */

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

:root {
  --font-heading: 'Space Grotesk', system-ui, sans-serif;
  --font-body:    'Inter', system-ui, sans-serif;
  --radius:    8px;
  --radius-sm: 6px;
  --radius-lg: 14px;
  --transition: 0.2s ease;
  --shadow:    0 2px 12px rgba(15,23,42,0.07);
  --shadow-lg: 0 12px 40px rgba(15,23,42,0.12);
  --container: 1240px;
}

html { scroll-behavior: smooth; }
body { font-family: var(--font-body); background: var(--bg); color: var(--text); line-height: 1.65; font-size: 15px; }

.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }
.container-narrow { max-width: 720px; margin: 0 auto; padding: 0 24px; }

h1, h2, h3, h4 { font-family: var(--font-heading); font-weight: 600; line-height: 1.2; }
h1 { font-size: clamp(2.6rem, 5.5vw, 5rem); letter-spacing: -0.03em; }
h2 { font-size: clamp(1.9rem, 3.5vw, 2.9rem); letter-spacing: -0.02em; }
h3 { font-size: 1.15rem; letter-spacing: -0.01em; }

.eyebrow { font-size: 0.72rem; font-weight: 600; letter-spacing: 0.15em; text-transform: uppercase; color: var(--accent); margin-bottom: 12px; }
.eyebrow-dark { font-size: 0.72rem; font-weight: 600; letter-spacing: 0.15em; text-transform: uppercase; color: var(--accent); margin-bottom: 12px; }
.text-on-dark { color: var(--on-dark); }
.text-on-dark-muted { color: var(--on-dark-muted); margin: 16px 0 36px; line-height: 1.8; max-width: 520px; }
.gradient-text { background: linear-gradient(135deg, #60a5fa 0%, #a78bfa 100%); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.section-pad { padding: 100px 0; }
.bg-alt { background: var(--bg-alt); }
.bg-dark { background: var(--primary); }
.bg-light-alt { background: #f1f5f9; }

.section-head { text-align: center; margin-bottom: 60px; }
.section-sub { color: var(--text-muted); max-width: 580px; margin: 16px auto 0; font-size: 1rem; line-height: 1.75; }

/* Buttons */
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 13px 28px; border-radius: var(--radius-sm); font-family: var(--font-body); font-size: 0.9rem; font-weight: 500; text-decoration: none; border: none; cursor: pointer; transition: all var(--transition); white-space: nowrap; }
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-dark); }
.btn-accent { background: var(--accent); color: #fff; box-shadow: 0 0 30px var(--glow); }
.btn-accent:hover { background: var(--accent-dark); }
.btn-ghost { background: transparent; color: var(--text); border: 1px solid var(--border); }
.btn-ghost:hover { border-color: var(--text-muted); }
.btn-outline { background: transparent; color: var(--text); border: 1px solid var(--border); }
.btn-outline:hover { border-color: var(--accent); color: var(--accent); }
.btn-outline-light { background: transparent; color: var(--on-dark); border: 1px solid var(--dark-border); }
.btn-outline-light:hover { border-color: rgba(255,255,255,0.4); }
.btn-block { width: 100%; justify-content: center; }

/* Promo bar */
.promo-bar { background: var(--primary-light); color: var(--on-dark-muted); text-align: center; padding: 10px 24px; font-size: 0.82rem; display: flex; align-items: center; justify-content: center; gap: 16px; flex-wrap: wrap; }
.promo-bar a { color: var(--accent); font-weight: 600; text-decoration: none; }
.promo-bar a:hover { text-decoration: underline; }

/* Navbar */
#navbar { position: sticky; top: 0; z-index: 100; background: rgba(248,250,252,0.93); backdrop-filter: blur(16px); border-bottom: 1px solid transparent; transition: border-color var(--transition); }
#navbar.scrolled { border-bottom-color: var(--border); }
.nav-inner { display: flex; align-items: center; height: 68px; gap: 32px; }
.logo { display: flex; align-items: center; gap: 8px; text-decoration: none; line-height: 1; }
.logo-main { font-family: var(--font-heading); font-size: 1.3rem; font-weight: 700; color: var(--text); }
.logo-sub { font-size: 0.55rem; font-weight: 700; letter-spacing: 0.2em; color: var(--text-light); text-transform: uppercase; }
.logo-light .logo-main { color: var(--on-dark); }
.nav-links { display: flex; gap: 28px; flex: 1; justify-content: center; }
.nav-links a { text-decoration: none; color: var(--text-muted); font-size: 0.88rem; font-weight: 450; transition: color var(--transition); }
.nav-links a:hover { color: var(--text); }
.nav-actions { display: flex; align-items: center; gap: 10px; }
#navToggle { display: none; background: none; border: none; cursor: pointer; color: var(--text); padding: 4px; }
#navMobile { display: none; position: fixed; inset: 0; background: var(--bg-alt); z-index: 200; flex-direction: column; padding: 80px 40px 40px; transform: translateX(100%); transition: transform 0.3s ease; }
#navMobile.open { transform: none; }
#navMobile nav { display: flex; flex-direction: column; gap: 20px; }
#navMobile nav a { font-family: var(--font-heading); font-size: 1.5rem; color: var(--text); text-decoration: none; font-weight: 600; }
#navClose { position: absolute; top: 24px; right: 24px; background: none; border: none; cursor: pointer; color: var(--text); }

/* Hero */
.hero { background: var(--primary); padding: 120px 0 100px; text-align: center; position: relative; overflow: hidden; }
.hero-glow { position: absolute; top: -200px; left: 50%; transform: translateX(-50%); width: 900px; height: 600px; background: radial-gradient(ellipse, rgba(59,130,246,0.25) 0%, transparent 70%); pointer-events: none; }
.hero-inner { position: relative; z-index: 1; }
.hero h1 { color: var(--on-dark); margin-bottom: 24px; }
.hero .eyebrow-dark { margin-bottom: 20px; }
.hero-sub { color: var(--on-dark-muted); max-width: 600px; margin: 0 auto 40px; font-size: 1.1rem; line-height: 1.8; }
.hero-ctas { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; margin-bottom: 72px; }
.hero-stats { display: flex; gap: 0; justify-content: center; flex-wrap: wrap; border-top: 1px solid var(--dark-border); border-bottom: 1px solid var(--dark-border); padding: 32px 0; margin-bottom: 48px; }
.h-stat { padding: 0 40px; border-right: 1px solid var(--dark-border); text-align: center; }
.h-stat:last-child { border-right: none; }
.h-stat strong { display: block; font-family: var(--font-heading); font-size: 2rem; font-weight: 700; color: var(--on-dark); line-height: 1; }
.h-stat span { font-size: 0.72rem; color: var(--on-dark-muted); text-transform: uppercase; letter-spacing: 0.07em; display: block; margin-top: 6px; }
.trust-bar { display: flex; align-items: center; justify-content: center; gap: 28px; flex-wrap: wrap; }
.trust-bar > span:first-child { font-size: 0.78rem; color: var(--on-dark-muted); }
.trust-logo { font-family: var(--font-heading); font-weight: 700; color: rgba(255,255,255,0.3); font-size: 0.95rem; letter-spacing: 0.04em; }

/* Features grid */
.features-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.feature-card { background: var(--bg-alt); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 32px; transition: all var(--transition); }
.feature-card:hover { border-color: var(--accent); box-shadow: 0 0 24px rgba(59,130,246,0.08); transform: translateY(-3px); }
.feature-icon { width: 44px; height: 44px; border-radius: var(--radius-sm); background: var(--accent-light); display: flex; align-items: center; justify-content: center; color: var(--accent); margin-bottom: 18px; }
.feature-card h3 { margin-bottom: 10px; color: var(--text); }
.feature-card p { color: var(--text-muted); font-size: 0.9rem; line-height: 1.7; }

/* Solutions */
.solutions-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; }
.solution-card { background: rgba(255,255,255,0.05); border: 1px solid var(--dark-border); border-radius: var(--radius-lg); overflow: hidden; transition: border-color var(--transition); }
.solution-card:hover { border-color: rgba(59,130,246,0.4); }
.solution-image { position: relative; height: 240px; overflow: hidden; }
.sol-img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform 0.5s ease; }
.solution-card:hover .sol-img { transform: scale(1.04); }
.solution-tag { position: absolute; top: 16px; left: 16px; background: var(--accent); color: #fff; font-size: 0.72rem; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; padding: 5px 12px; border-radius: 100px; }
.solution-body { padding: 28px 32px; }
.solution-body h3 { color: var(--on-dark); font-size: 1.3rem; margin-bottom: 12px; }
.solution-body p { color: var(--on-dark-muted); font-size: 0.92rem; line-height: 1.75; margin-bottom: 20px; }
.link-light { color: var(--accent); text-decoration: none; font-size: 0.9rem; font-weight: 500; }
.link-light:hover { text-decoration: underline; }

/* Pricing */
.pricing-toggle { display: flex; gap: 0; background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 4px; width: fit-content; margin: 28px auto 0; }
.toggle-btn { padding: 8px 20px; border: none; background: none; font-size: 0.85rem; font-weight: 500; cursor: pointer; border-radius: calc(var(--radius-sm) - 2px); color: var(--text-muted); transition: all var(--transition); white-space: nowrap; }
.toggle-btn.active { background: var(--accent); color: #fff; }
.pricing-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; align-items: start; }
.pricing-card { background: var(--bg-alt); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 36px 32px; position: relative; transition: all var(--transition); }
.pricing-card:hover { box-shadow: var(--shadow-lg); }
.pricing-card.popular { border-color: var(--accent); box-shadow: 0 0 0 1px var(--accent), 0 12px 40px rgba(59,130,246,0.12); }
.popular-badge { position: absolute; top: -14px; left: 50%; transform: translateX(-50%); background: var(--accent); color: #fff; font-size: 0.7rem; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; padding: 5px 14px; border-radius: 100px; white-space: nowrap; }
.tier-top { margin-bottom: 28px; }
.tier-top h3 { font-size: 1.1rem; margin-bottom: 6px; }
.tier-desc { color: var(--text-muted); font-size: 0.85rem; margin-bottom: 20px; }
.tier-price { display: flex; align-items: baseline; gap: 4px; }
.tier-price strong { font-family: var(--font-heading); font-size: 2.6rem; font-weight: 700; color: var(--text); }
.tier-price span { color: var(--text-muted); font-size: 0.88rem; }
.feature-list { list-style: none; margin-bottom: 28px; display: flex; flex-direction: column; gap: 12px; }
.feature-list li { display: flex; align-items: flex-start; gap: 10px; font-size: 0.88rem; color: var(--text-muted); }
.feature-list li svg { color: var(--accent); flex-shrink: 0; margin-top: 2px; }

/* Reviews */
.reviews-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.review-card { background: var(--bg-alt); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 32px; }
.stars { display: flex; gap: 3px; color: #f59e0b; margin-bottom: 16px; }
.review-card blockquote { font-size: 0.92rem; color: var(--text-muted); line-height: 1.75; margin-bottom: 24px; font-style: italic; }
.reviewer { display: flex; align-items: center; gap: 12px; }
.reviewer-avatar { width: 42px; height: 42px; border-radius: 50%; object-fit: cover; }
.reviewer strong { display: block; font-size: 0.9rem; color: var(--text); }
.reviewer span { font-size: 0.78rem; color: var(--text-muted); }

/* FAQ */
.faq-list { display: flex; flex-direction: column; gap: 0; border: 1px solid var(--border); border-radius: var(--radius-lg); overflow: hidden; }
.faq-item { border-bottom: 1px solid var(--border); }
.faq-item:last-child { border-bottom: none; }
.faq-q { width: 100%; background: none; border: none; display: flex; justify-content: space-between; align-items: center; gap: 16px; padding: 22px 28px; cursor: pointer; text-align: left; font-size: 0.95rem; font-weight: 500; color: var(--text); }
.faq-q:hover { background: var(--bg); }
.faq-icon { flex-shrink: 0; transition: transform 0.3s ease; }
.faq-a { max-height: 0; overflow: hidden; transition: max-height 0.4s ease; }
.faq-a p { padding: 0 28px 22px; color: var(--text-muted); font-size: 0.9rem; line-height: 1.75; }
.faq-item.open .faq-icon { transform: rotate(180deg); }
.faq-item.open .faq-a { max-height: 300px; }

/* Contact section */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 72px; align-items: start; }
.contact-items { display: flex; flex-direction: column; gap: 20px; margin-top: 16px; }
.contact-item { display: flex; align-items: flex-start; gap: 14px; color: var(--on-dark-muted); font-size: 0.92rem; }
.contact-item svg { color: var(--accent); flex-shrink: 0; margin-top: 2px; }
.contact-form-wrap { background: rgba(255,255,255,0.05); border: 1px solid var(--dark-border); border-radius: var(--radius-lg); padding: 40px; }
.contact-form { display: flex; flex-direction: column; gap: 18px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.form-group { display: flex; flex-direction: column; gap: 7px; }
.form-group label { font-size: 0.8rem; font-weight: 500; color: var(--on-dark-muted); }
.form-group input, .form-group textarea { background: rgba(255,255,255,0.06); border: 1px solid var(--dark-border); border-radius: var(--radius-sm); padding: 12px 16px; font-size: 0.9rem; color: var(--on-dark); font-family: var(--font-body); transition: border-color var(--transition); resize: vertical; }
.form-group input::placeholder, .form-group textarea::placeholder { color: rgba(255,255,255,0.3); }
.form-group input:focus, .form-group textarea:focus { outline: none; border-color: var(--accent); }

/* Footer */
.footer { background: var(--primary-dark); border-top: 1px solid rgba(255,255,255,0.06); }
.footer-top { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr 1fr; gap: 48px; padding: 72px 0 48px; }
.footer-brand p { color: var(--on-dark-muted); font-size: 0.88rem; line-height: 1.7; margin: 14px 0 24px; max-width: 240px; }
.social-links { display: flex; gap: 14px; }
.social-links a { color: rgba(255,255,255,0.4); transition: color var(--transition); }
.social-links a:hover { color: var(--accent); }
.footer-col h4 { font-family: var(--font-heading); font-size: 0.78rem; font-weight: 600; letter-spacing: 0.1em; text-transform: uppercase; color: rgba(255,255,255,0.4); margin-bottom: 18px; }
.footer-col ul { list-style: none; display: flex; flex-direction: column; gap: 12px; }
.footer-col a { text-decoration: none; color: var(--on-dark-muted); font-size: 0.88rem; transition: color var(--transition); }
.footer-col a:hover { color: var(--on-dark); }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.06); padding: 24px 0; text-align: center; }
.footer-bottom p { color: rgba(255,255,255,0.3); font-size: 0.82rem; }

/* Back to top */
#backTop { position: fixed; bottom: 32px; right: 32px; width: 44px; height: 44px; border-radius: 50%; background: var(--accent); color: #fff; border: none; cursor: pointer; display: flex; align-items: center; justify-content: center; box-shadow: 0 4px 20px rgba(59,130,246,0.4); opacity: 0; transform: translateY(16px); transition: all 0.3s ease; pointer-events: none; }
#backTop.visible { opacity: 1; transform: none; pointer-events: auto; }
#backTop:hover { background: var(--accent-dark); }

/* Reveal animations */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity 0.6s ease, transform 0.6s ease; }
.reveal.in-view { opacity: 1; transform: none; }

/* Responsive */
@media (max-width: 1024px) {
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-top { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
}
@media (max-width: 768px) {
  .section-pad { padding: 72px 0; }
  .nav-links, .nav-actions .btn-ghost { display: none; }
  #navToggle { display: flex; }
  #navMobile { display: flex; }
  .hero-stats { padding: 24px 0; }
  .h-stat { padding: 0 20px; }
  .h-stat strong { font-size: 1.5rem; }
  .features-grid { grid-template-columns: 1fr; }
  .solutions-grid { grid-template-columns: 1fr; }
  .pricing-grid { grid-template-columns: 1fr; }
  .reviews-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; gap: 40px; }
  .form-row { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr 1fr; gap: 32px; }
  .footer-brand { grid-column: 1 / -1; }
  #backTop { bottom: 20px; right: 20px; }
}
@media (max-width: 480px) {
  h1 { font-size: 2.4rem; }
  .h-stat { padding: 0 12px; }
  .trust-bar { flex-direction: column; gap: 12px; }
  .contact-form-wrap { padding: 24px; }
}