/* ==============
   Global Styles
   ============== */

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

:root {
  --primary-blue: #0b4a7e;
  --primary-blue-dark: #052a49;
  --accent-cyan: #1cb5e0;
  --light-bg: #f5f8fc;
  --text-main: #0f172a;
  --text-muted: #4b5563;
  --white: #ffffff;
  --max-width: 1100px;
  --radius-card: 10px;
  --shadow-soft: 0 10px 25px rgba(15, 23, 42, 0.18);
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text-main);
  background-color: var(--light-bg);
  line-height: 1.5;
}

/* ==============
   Layout
   ============== */

.page-wrapper {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

main {
  flex: 1;
}

/* ==============
   Header / Nav
   ============== */

.site-header {
  background: rgba(5, 42, 73, 0.92);
  color: var(--white);
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(8px);
}

.nav-bar {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0.75rem 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  font-weight: 700;
  letter-spacing: 0.08em;
  font-size: 0.95rem;
  text-transform: uppercase;
}

.nav-links {
  display: flex;
  gap: 1.5rem;
}

.nav-links a {
  color: var(--white);
  text-decoration: none;
  font-size: 0.95rem;
  position: relative;
  padding-bottom: 0.2rem;
}

.nav-links a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0%;
  height: 2px;
  background: linear-gradient(to right, var(--accent-cyan), #60a5fa);
  transition: width 0.2s ease-out;
}

.nav-links a:hover::after,
.nav-links a:focus-visible::after,
.nav-links a.active::after {
  width: 100%;
}

/* ==============
   Hero Section
   ============== */

.hero {
  position: relative;
  color: var(--white);
  text-align: left;
  padding: 4.5rem 1.25rem 4rem;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: url("./assets/images/hero-analysis4u.jpg") center/cover no-repeat;
  z-index: -2;
  filter: brightness(0.7);
}

.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at top left, rgba(28, 181, 224, 0.35), transparent 55%),
              linear-gradient(to bottom right, rgba(5, 42, 73, 0.7), rgba(5, 42, 73, 0.95));
  z-index: -1;
}

.hero-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 3fr) minmax(0, 2fr);
  gap: 3rem;
  align-items: center;
}

.hero-kicker {
  font-size: 0.9rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  opacity: 0.85;
  margin-bottom: 0.5rem;
}

.hero-title {
  font-size: clamp(2rem, 3.1vw, 2.7rem);
  font-weight: 700;
  margin: 0 0 0.75rem;
}

.hero-title span {
  display: block;
}

.hero-subtitle {
  font-size: 1.05rem;
  max-width: 32rem;
  opacity: 0.96;
  margin-bottom: 1.5rem;
}

.hero-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.75rem;
}

.hero-badge {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  padding: 0.2rem 0.75rem;
  border-radius: 999px;
  border: 1px solid rgba(148, 163, 184, 0.55);
  background-color: rgba(15, 23, 42, 0.35);
}

.hero-cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: center;
}

.btn-primary,
.btn-secondary {
  border-radius: 999px;
  padding: 0.65rem 1.35rem;
  font-size: 0.95rem;
  border: none;
  cursor: pointer;
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  text-decoration: none;
}

.btn-primary {
  background: linear-gradient(to right, var(--accent-cyan), #60a5fa);
  color: #020617;
  box-shadow: 0 10px 25px rgba(37, 99, 235, 0.35);
}

.btn-primary:hover {
  filter: brightness(1.05);
}

.btn-secondary {
  background: transparent;
  color: var(--white);
  border: 1px solid rgba(148, 163, 184, 0.7);
}

.hero-note {
  font-size: 0.8rem;
  opacity: 0.85;
}

.hero-stats-card {
  background: rgba(15, 23, 42, 0.9);
  border-radius: var(--radius-card);
  padding: 1.5rem 1.75rem;
  box-shadow: var(--shadow-soft);
}

.hero-stats-title {
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  margin-bottom: 0.75rem;
  opacity: 0.85;
}

.hero-stat-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 0.35rem;
}

.hero-stat-label {
  font-size: 0.85rem;
  color: #cbd5f5;
}

.hero-stat-value {
  font-weight: 600;
}

.hero-stat-footnote {
  font-size: 0.8rem;
  color: #e5e7eb;
  margin-top: 0.75rem;
  opacity: 0.85;
}

/* ==============
   Sections
   ============== */

.section {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 3rem 1.25rem 3.25rem;
}

.section-header {
  margin-bottom: 1.5rem;
}

.section-kicker {
  font-size: 0.8rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--accent-cyan);
  margin-bottom: 0.25rem;
}

.section-title {
  font-size: 1.6rem;
  margin: 0 0 0.25rem;
}

.section-subtitle {
  color: var(--text-muted);
  max-width: 40rem;
}

/* Problem list */

.problem-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 0.9rem;
  margin-top: 1.5rem;
}

.problem-card {
  background: var(--white);
  border-radius: var(--radius-card);
  padding: 0.75rem 0.9rem;
  border: 1px solid #e5e7eb;
  font-size: 0.93rem;
}

/* Services */

.service-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 1.25rem;
  margin-top: 1.5rem;
}

.service-card {
  background: var(--white);
  border-radius: var(--radius-card);
  padding: 1.5rem 1.4rem;
  border: 1px solid #e5e7eb;
  box-shadow: 0 8px 20px rgba(15, 23, 42, 0.04);
}

.service-card h3 {
  margin-top: 0;
  margin-bottom: 0.4rem;
}

.service-tag {
  display: inline-block;
  font-size: 0.7rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent-cyan);
  margin-bottom: 0.4rem;
}

/* About */

.about-layout {
  display: grid;
  grid-template-columns: minmax(0, 3fr) minmax(0, 2fr);
  gap: 2rem;
  margin-top: 1.5rem;
}

.about-highlight {
  background: var(--white);
  border-radius: var(--radius-card);
  padding: 1rem 1.2rem;
  border-left: 4px solid var(--accent-cyan);
  font-size: 0.95rem;
  color: var(--text-muted);
}

/* Contact */

.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 3fr) minmax(0, 2fr);
  gap: 2rem;
  margin-top: 1.5rem;
}

.contact-panel {
  background: var(--white);
  border-radius: var(--radius-card);
  padding: 1.5rem 1.4rem;
  border: 1px solid #e5e7eb;
  box-shadow: 0 8px 18px rgba(15, 23, 42, 0.06);
}

.form-field {
  margin-bottom: 1rem;
}

.form-field label {
  display: block;
  font-size: 0.85rem;
  margin-bottom: 0.25rem;
}

.form-field input,
.form-field textarea {
  width: 100%;
  border-radius: 8px;
  border: 1px solid #d1d5db;
  padding: 0.55rem 0.7rem;
  font-size: 0.95rem;
  font-family: inherit;
}

.form-field textarea {
  min-height: 120px;
  resize: vertical;
}

/* Footer */

.site-footer {
  background: var(--primary-blue-dark);
  color: #e5e7eb;
  font-size: 0.8rem;
  padding: 1.25rem 1.25rem;
}

.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.75rem;
}

/* ==============
   Responsive
   ============== */

@media (max-width: 840px) {
  .hero-inner,
  .about-layout,
  .contact-grid {
    grid-template-columns: minmax(0, 1fr);
  }
}

@media (max-width: 640px) {
  .nav-links {
    display: none; /* simplification for now */
  }

  .hero {
    text-align: left;
    padding-top: 3.5rem;
    padding-bottom: 3rem;
  }

  .hero-title span {
    display: inline;
  }
}