/* ===========================================================
   SUREFIRE SYSTEMS — Landing Page (Original Content)
   Brand:  primary #051c2e | accent #257c8e | tint #d0f0f6
   Fonts:  Poppins (display) + Open Sans (body)
   =========================================================== */

:root {
  --c-primary:        #051c2e;
  --c-primary-700:    #0a2c47;
  --c-primary-600:    #103b5d;
  --c-accent:         #257c8e;
  --c-accent-600:     #1d6776;
  --c-accent-400:     #4ba4b8;
  --c-tint:           #d0f0f6;
  --c-tint-50:        #ecf8fb;
  --c-bg:             #ffffff;
  --c-bg-alt:         #f6f9fb;
  --c-border:         #e4ebef;
  --c-text:           #051c2e;
  --c-text-muted:     #4a5e6e;
  --c-text-soft:      #6b7d8b;

  --shadow-sm: 0 1px 2px rgba(5, 28, 46, 0.06), 0 1px 3px rgba(5, 28, 46, 0.04);
  --shadow-md: 0 4px 14px rgba(5, 28, 46, 0.08), 0 2px 6px rgba(5, 28, 46, 0.04);
  --shadow-lg: 0 18px 40px rgba(5, 28, 46, 0.14), 0 6px 14px rgba(5, 28, 46, 0.06);
  --shadow-accent: 0 14px 32px rgba(37, 124, 142, 0.28);

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --radius-xl: 32px;
  --radius-pill: 999px;

  --container: 1200px;

  --font-display: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-body: 'Open Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  color: var(--c-text);
  background: var(--c-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; border: none; background: none; }
h1, h2, h3, h4 { font-family: var(--font-display); margin: 0; line-height: 1.18; letter-spacing: -0.01em; }
p { margin: 0; }

.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 28px;
}

/* ---------- BUTTONS ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-display);
  font-weight: 600;
  border-radius: var(--radius-pill);
  padding: 14px 28px;
  font-size: 15px;
  letter-spacing: 0.01em;
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease, color .2s ease;
  white-space: nowrap;
  cursor: pointer;
  border: 2px solid transparent;
}
.btn--lg { padding: 17px 34px; font-size: 16px; }
.btn--sm { padding: 11px 22px; font-size: 14px; }

.btn--primary { background: var(--c-primary); color: #fff; }
.btn--primary:hover { background: var(--c-primary-700); transform: translateY(-2px); box-shadow: var(--shadow-md); }

.btn--accent { background: var(--c-accent); color: #fff; box-shadow: var(--shadow-accent); }
.btn--accent:hover { background: var(--c-accent-600); transform: translateY(-2px); box-shadow: 0 18px 38px rgba(37, 124, 142, 0.36); }

.btn--ghost { background: rgba(255,255,255,0.08); color: #fff; border-color: rgba(255,255,255,0.4); backdrop-filter: blur(6px); }
.btn--ghost:hover { background: rgba(255,255,255,0.18); border-color: rgba(255,255,255,0.7); transform: translateY(-2px); }

/* ---------- SECTION HEAD ---------- */
.section-head { text-align: center; max-width: 760px; margin: 0 auto 64px; }
.section-head__eyebrow {
  display: inline-block;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--c-accent);
  background: var(--c-tint-50);
  padding: 8px 18px;
  border-radius: var(--radius-pill);
  margin-bottom: 22px;
}
.section-head__eyebrow--invert { background: rgba(208, 240, 246, 0.14); color: var(--c-tint); }
.section-head__title { font-size: clamp(28px, 4vw, 44px); font-weight: 700; color: var(--c-primary); margin-bottom: 18px; line-height: 1.2; }
.section-head__sub { font-size: clamp(16px, 1.5vw, 18px); color: var(--c-text-muted); line-height: 1.65; }

/* =========================================================
   HEADER
   ========================================================= */
.header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  transition: box-shadow .25s ease, background .25s ease;
}
.header--scrolled { background: rgba(255, 255, 255, 0.96); box-shadow: 0 1px 0 var(--c-border), 0 6px 18px rgba(5, 28, 46, 0.04); }
.header__inner { display: flex; align-items: center; justify-content: space-between; height: 76px; }
.header__logo img { height: 44px; width: auto; }
.header__nav { display: flex; align-items: center; gap: 36px; }
.header__nav a { font-family: var(--font-display); font-weight: 500; font-size: 15px; color: var(--c-primary); position: relative; transition: color .2s; }
.header__nav a.btn { color: #fff; }
.header__nav a.btn--primary { color: #fff; }
.header__nav a:not(.btn):hover { color: var(--c-accent); }
.header__nav a:not(.btn)::after { content: ''; position: absolute; left: 0; right: 0; bottom: -6px; height: 2px; background: var(--c-accent); transform: scaleX(0); transform-origin: left; transition: transform .25s; }
.header__nav a:not(.btn):hover::after { transform: scaleX(1); }
.header__toggle { display: none; flex-direction: column; gap: 5px; padding: 8px; }
.header__toggle span { display: block; width: 24px; height: 2px; background: var(--c-primary); border-radius: 2px; transition: transform .25s, opacity .25s; }
.header__toggle--open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.header__toggle--open span:nth-child(2) { opacity: 0; }
.header__toggle--open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* =========================================================
   HERO
   ========================================================= */
.hero {
  position: relative;
  padding: 156px 0 110px;
  overflow: hidden;
  background: linear-gradient(135deg, #ffffff 0%, var(--c-tint-50) 60%, #ffffff 100%);
}
.hero__bg { position: absolute; inset: 0; background: radial-gradient(60% 60% at 90% 10%, rgba(37,124,142,0.16) 0%, transparent 60%), radial-gradient(50% 50% at 10% 90%, rgba(208,240,246,0.7) 0%, transparent 60%); pointer-events: none; z-index: 0; }
.hero__inner { position: relative; z-index: 1; display: grid; grid-template-columns: 1.1fr 1fr; gap: 64px; align-items: center; }
.hero__eyebrow {
  display: inline-block;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--c-accent);
  background: var(--c-tint-50);
  padding: 8px 18px;
  border-radius: var(--radius-pill);
  margin-bottom: 26px;
  border: 1px solid rgba(37,124,142,0.18);
}
.hero__title {
  font-size: clamp(34px, 4.4vw, 56px);
  font-weight: 800;
  color: var(--c-primary);
  margin-bottom: 24px;
  letter-spacing: -0.02em;
  line-height: 1.18;
}
.hero__title-accent {
  background: linear-gradient(120deg, var(--c-accent) 0%, var(--c-accent-400) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero__sub { font-size: clamp(16px, 1.5vw, 19px); color: var(--c-text-muted); margin-bottom: 22px; max-width: 560px; line-height: 1.65; }
.hero__transitional { font-family: var(--font-display); font-weight: 600; font-size: 17px; color: var(--c-primary); margin-bottom: 32px; padding-left: 16px; border-left: 3px solid var(--c-accent); }
.hero__cta { display: flex; flex-wrap: wrap; gap: 14px; }
.hero__cta .btn--ghost { background: rgba(5,28,46,0.04); color: var(--c-primary); border-color: var(--c-border); }
.hero__cta .btn--ghost:hover { background: var(--c-primary); color: #fff; border-color: var(--c-primary); }

.hero__visual { position: relative; }
.hero__image-wrap { position: relative; border-radius: var(--radius-xl); overflow: hidden; box-shadow: var(--shadow-lg); background: var(--c-tint-50); aspect-ratio: 4/5; }
.hero__image-wrap img { width: 100%; height: 100%; object-fit: cover; }
.hero__image-wrap::before { content: ''; position: absolute; top: -20px; left: -20px; right: 20px; bottom: 20px; border: 2px solid var(--c-accent); border-radius: var(--radius-xl); z-index: -1; opacity: 0.4; }
.hero__badge { position: absolute; bottom: 28px; left: -28px; background: #fff; padding: 18px 24px; border-radius: var(--radius-md); box-shadow: var(--shadow-lg); display: flex; align-items: center; gap: 14px; }
.hero__badge-num { font-family: var(--font-display); font-weight: 800; font-size: 32px; color: var(--c-accent); line-height: 1; }
.hero__badge-label { font-family: var(--font-display); font-weight: 600; font-size: 13px; color: var(--c-primary); max-width: 110px; line-height: 1.25; }

/* =========================================================
   TRUST BAR
   ========================================================= */
.trust { padding: 56px 0; background: var(--c-bg); border-top: 1px solid var(--c-border); border-bottom: 1px solid var(--c-border); }
.trust__label { text-align: center; font-family: var(--font-display); font-weight: 600; font-size: 12px; letter-spacing: 0.18em; text-transform: uppercase; color: var(--c-text-soft); margin-bottom: 32px; }
.trust__logos { display: flex; justify-content: space-around; align-items: center; flex-wrap: wrap; gap: 40px; }
.trust__logos img { height: 44px; width: auto; max-width: 160px; object-fit: contain; filter: grayscale(100%) opacity(0.65); transition: filter .25s; }
.trust__logos img:hover { filter: grayscale(0%) opacity(1); }

/* =========================================================
   PROBLEM
   ========================================================= */
.problem { padding: 110px 0; background: var(--c-bg-alt); }
.problem__grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-bottom: 64px; }
.pain-card { background: #fff; border-radius: var(--radius-lg); padding: 36px 30px; border: 1px solid var(--c-border); transition: transform .25s, box-shadow .25s, border-color .25s; position: relative; overflow: hidden; }
.pain-card::before { content: ''; position: absolute; top: 0; left: 0; width: 0; height: 4px; background: var(--c-accent); transition: width .3s ease; }
.pain-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: rgba(37,124,142,0.3); }
.pain-card:hover::before { width: 100%; }
.pain-card__num { font-family: var(--font-display); font-weight: 700; font-size: 14px; color: var(--c-accent); letter-spacing: 0.1em; margin-bottom: 16px; }
.pain-card__title { font-size: 20px; font-weight: 700; color: var(--c-primary); margin-bottom: 14px; line-height: 1.3; }
.pain-card__body { color: var(--c-text-muted); font-size: 15px; line-height: 1.65; }

.problem__cta { text-align: center; }
.problem__tagline { font-family: var(--font-display); font-weight: 600; font-size: clamp(20px, 2vw, 26px); color: var(--c-primary); margin-bottom: 24px; }

/* =========================================================
   PLATFORM
   ========================================================= */
.platform { padding: 110px 0; background: var(--c-bg); }
.platform__grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-bottom: 64px; }
.service { background: linear-gradient(180deg, #fff 0%, var(--c-tint-50) 100%); border-radius: var(--radius-lg); padding: 36px 32px; border: 1px solid var(--c-border); transition: transform .25s, box-shadow .25s; position: relative; }
.service:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.service__icon { width: 64px; height: 64px; border-radius: var(--radius-md); background: var(--c-tint); display: flex; align-items: center; justify-content: center; margin-bottom: 24px; }
.service__icon img { width: 36px; height: 36px; object-fit: contain; }
.service__step { position: absolute; top: 32px; right: 32px; font-family: var(--font-display); font-weight: 800; font-size: 28px; color: var(--c-tint); line-height: 1; }
.service__title { font-size: 21px; font-weight: 700; color: var(--c-primary); margin-bottom: 14px; line-height: 1.3; }
.service__body { color: var(--c-text-muted); font-size: 15px; line-height: 1.65; }

.platform__cta { text-align: center; }
.platform__tagline { font-family: var(--font-display); font-weight: 600; font-size: clamp(20px, 2vw, 26px); color: var(--c-primary); margin-bottom: 24px; }

/* =========================================================
   SHOWCASE
   ========================================================= */
.showcase { padding: 110px 0; background: var(--c-primary); color: #fff; position: relative; overflow: hidden; }
.showcase::before { content: ''; position: absolute; inset: 0; background: radial-gradient(50% 50% at 20% 20%, rgba(37,124,142,0.4) 0%, transparent 60%), radial-gradient(40% 40% at 80% 80%, rgba(37,124,142,0.3) 0%, transparent 60%); pointer-events: none; }
.showcase__inner { position: relative; display: grid; grid-template-columns: 1.1fr 1fr; gap: 64px; align-items: center; }
.showcase__visual { border-radius: var(--radius-xl); overflow: hidden; box-shadow: 0 24px 60px rgba(0,0,0,0.4); background: #fff; }
.showcase__visual img { width: 100%; height: auto; display: block; }
.showcase__copy .section-head__eyebrow { background: rgba(208,240,246,0.14); color: var(--c-tint); margin-bottom: 22px; }
.showcase__title { font-family: var(--font-display); font-size: clamp(28px, 3.5vw, 40px); font-weight: 700; color: #fff; margin-bottom: 28px; line-height: 1.18; }
.showcase__list { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 14px; }
.showcase__list li { position: relative; padding-left: 32px; color: rgba(255,255,255,0.85); font-size: 16px; line-height: 1.6; }
.showcase__list li::before { content: ''; position: absolute; left: 0; top: 8px; width: 18px; height: 18px; background: var(--c-accent); border-radius: 50%; box-shadow: 0 0 0 4px rgba(37,124,142,0.25); }
.showcase__list li::after { content: ''; position: absolute; left: 5px; top: 12px; width: 8px; height: 4px; border-left: 2px solid #fff; border-bottom: 2px solid #fff; transform: rotate(-45deg); }

/* =========================================================
   PROCESS
   ========================================================= */
.process { padding: 110px 0; background: var(--c-bg-alt); }
.process__steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; margin-bottom: 64px; position: relative; }
.process__steps::before { content: ''; position: absolute; top: 38px; left: 12.5%; right: 12.5%; height: 2px; background: repeating-linear-gradient(to right, var(--c-tint) 0 8px, transparent 8px 16px); z-index: 0; }
.step { background: #fff; border-radius: var(--radius-lg); padding: 32px 26px; border: 1px solid var(--c-border); text-align: center; position: relative; z-index: 1; transition: transform .25s, box-shadow .25s; }
.step:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); }
.step__num { display: inline-flex; align-items: center; justify-content: center; width: 56px; height: 56px; background: linear-gradient(135deg, var(--c-accent) 0%, var(--c-accent-400) 100%); color: #fff; font-family: var(--font-display); font-weight: 700; font-size: 13px; border-radius: 50%; margin: 0 auto 22px; box-shadow: 0 8px 18px rgba(37,124,142,0.3); }
.step__body { color: var(--c-text-muted); font-size: 15px; line-height: 1.6; }

.process__cta { text-align: center; }
.process__tagline { font-family: var(--font-display); font-weight: 600; font-size: clamp(20px, 2vw, 26px); color: var(--c-primary); margin-bottom: 24px; }

/* =========================================================
   FINAL CTA
   ========================================================= */
.cta { padding: 110px 0; background: linear-gradient(135deg, var(--c-primary) 0%, var(--c-primary-600) 100%); color: #fff; position: relative; overflow: hidden; }
.cta__bg { position: absolute; inset: 0; background: radial-gradient(60% 60% at 100% 0%, rgba(37,124,142,0.45) 0%, transparent 60%), radial-gradient(50% 50% at 0% 100%, rgba(208,240,246,0.18) 0%, transparent 60%); pointer-events: none; }
.cta__inner { position: relative; display: grid; grid-template-columns: 1.4fr 1fr; gap: 64px; align-items: center; }
.cta__title { font-family: var(--font-display); font-size: clamp(30px, 3.6vw, 44px); font-weight: 800; color: #fff; margin-bottom: 20px; letter-spacing: -0.01em; line-height: 1.2; }
.cta__sub { font-size: clamp(16px, 1.4vw, 18px); color: rgba(255,255,255,0.8); margin-bottom: 32px; max-width: 560px; line-height: 1.6; }
.cta__btn { margin-bottom: 22px; }
.cta__disclaimer { font-size: 14px; color: rgba(255,255,255,0.65); max-width: 540px; line-height: 1.55; }
.cta__details { display: flex; flex-direction: column; gap: 14px; }
.cta__detail { background: rgba(255,255,255,0.06); border: 1px solid rgba(255,255,255,0.14); border-radius: var(--radius-md); padding: 22px 24px; display: flex; flex-direction: column; gap: 6px; transition: background .2s, border-color .2s, transform .2s; }
.cta__detail:hover { background: rgba(255,255,255,0.12); border-color: rgba(255,255,255,0.3); transform: translateY(-2px); }
.cta__detail-label { font-family: var(--font-display); font-weight: 600; font-size: 11px; letter-spacing: 0.16em; text-transform: uppercase; color: var(--c-tint); }
.cta__detail-value { font-family: var(--font-display); font-weight: 600; font-size: 18px; color: #fff; }

/* =========================================================
   FOOTER
   ========================================================= */
.footer { background: var(--c-primary); color: rgba(255,255,255,0.75); padding: 56px 0 36px; border-top: 1px solid rgba(255,255,255,0.08); }
.footer__inner { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 48px; align-items: start; }
.footer__brand img { height: 40px; width: auto; margin-bottom: 16px; filter: brightness(0) invert(1); }
.footer__tag { font-size: 14px; line-height: 1.55; max-width: 320px; color: rgba(255,255,255,0.65); }
.footer__links { display: flex; flex-direction: column; gap: 12px; }
.footer__links a { font-family: var(--font-display); font-weight: 500; font-size: 14px; color: rgba(255,255,255,0.75); transition: color .2s; }
.footer__links a:hover { color: var(--c-tint); }
.footer__legal { font-size: 13px; color: rgba(255,255,255,0.5); text-align: right; }

/* =========================================================
   RESPONSIVE — TABLET
   ========================================================= */
@media (max-width: 1024px) {
  .hero { padding: 130px 0 80px; }
  .hero__inner { grid-template-columns: 1fr; gap: 48px; }
  .hero__visual { max-width: 520px; margin: 0 auto; width: 100%; }
  .hero__image-wrap { aspect-ratio: 5/4; }
  .hero__badge { left: -16px; bottom: 20px; }
  .problem__grid, .platform__grid { grid-template-columns: repeat(2, 1fr); }
  .process__steps { grid-template-columns: repeat(2, 1fr); }
  .process__steps::before { display: none; }
  .showcase__inner { grid-template-columns: 1fr; gap: 48px; }
  .showcase__visual { max-width: 600px; margin: 0 auto; }
  .cta__inner { grid-template-columns: 1fr; gap: 40px; }
  .trust__logos { gap: 28px; }
  .trust__logos img { height: 36px; }
  .footer__inner { grid-template-columns: 1fr 1fr; gap: 36px; }
  .footer__legal { grid-column: span 2; text-align: left; border-top: 1px solid rgba(255,255,255,0.08); padding-top: 20px; }
}

/* =========================================================
   RESPONSIVE — MOBILE
   ========================================================= */
@media (max-width: 768px) {
  .container { padding: 0 20px; }
  .header__inner { height: 64px; }
  .header__logo img { height: 36px; }
  .header__toggle { display: flex; }
  .header__nav { position: fixed; top: 64px; left: 0; right: 0; background: #fff; flex-direction: column; align-items: stretch; padding: 24px 24px 32px; gap: 18px; border-bottom: 1px solid var(--c-border); box-shadow: var(--shadow-md); transform: translateY(-120%); opacity: 0; pointer-events: none; transition: transform .3s, opacity .25s; }
  .header__nav--open { transform: translateY(0); opacity: 1; pointer-events: auto; }
  .header__nav a { font-size: 16px; }
  .header__nav .btn { width: 100%; padding: 14px 20px; }

  .hero { padding: 110px 0 64px; }
  .hero__title { font-size: 32px; line-height: 1.2; }
  .hero__sub { font-size: 16px; }
  .hero__transitional { font-size: 15px; }
  .hero__cta { gap: 12px; }
  .hero__cta .btn { flex: 1; min-width: 0; }
  .hero__badge { bottom: 16px; left: 50%; transform: translateX(-50%); padding: 14px 20px; }
  .hero__badge-num { font-size: 26px; }
  .hero__badge-label { font-size: 12px; }
  .hero__image-wrap::before { display: none; }

  .trust { padding: 40px 0; }
  .trust__logos { gap: 28px 36px; }
  .trust__logos img { height: 30px; max-width: 110px; }

  .problem, .platform, .showcase, .process, .cta { padding: 72px 0; }
  .section-head { margin-bottom: 44px; }
  .section-head__title { font-size: 28px; }
  .problem__grid, .platform__grid, .process__steps { grid-template-columns: 1fr; }
  .pain-card, .service { padding: 28px 24px; }
  .showcase__title { font-size: 26px; }
  .cta__title { font-size: 28px; }
  .cta__detail { padding: 18px 20px; }
  .cta__detail-value { font-size: 16px; }

  .footer { padding: 44px 0 28px; }
  .footer__inner { grid-template-columns: 1fr; gap: 28px; }
  .footer__legal { grid-column: 1; text-align: left; }
}

@media (max-width: 480px) {
  .hero__title { font-size: 30px; }
  .hero__cta { flex-direction: column; }
  .hero__cta .btn { width: 100%; }
  .trust__logos img { height: 26px; }
}