:root {
  --ink-900: #15263a;
  --ink-700: #2d4960;
  --ink-500: #4d6f89;
  --text-900: #0f2335;
  --text-700: #3f5568;
  --surface: #ffffff;
  --surface-soft: #f4f8fb;
  --line: #dce5ec;
  --brand: #1f7a8c;
  --brand-strong: #165e6c;
  --shadow-sm: 0 8px 26px rgba(25, 56, 84, 0.08);
  --shadow-md: 0 18px 44px rgba(20, 45, 68, 0.14);
}

* {
  box-sizing: border-box;
}

html,
body {
  width: 100%;
  min-height: 100%;
}

body {
  margin: 0;
  color: var(--text-900);
  font-family: "Manrope", "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at 0% 0%, rgba(31, 122, 140, 0.16), transparent 38%),
    radial-gradient(circle at 95% 12%, rgba(61, 123, 159, 0.2), transparent 36%),
    linear-gradient(180deg, #f0f6fb 0%, #f9fcff 44%, #eef5fb 100%);
  line-height: 1.6;
}

.site-nav {
  background: rgba(245, 250, 255, 0.9);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(24, 55, 79, 0.14);
  padding: 0.8rem 0;
}

.navbar-brand {
  color: var(--ink-900) !important;
  font-family: "Sora", "Manrope", sans-serif;
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.navbar-light .navbar-nav .nav-link {
  color: var(--ink-700);
  font-size: 0.93rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  margin-left: 1.15rem;
}

.navbar-light .navbar-nav .nav-link:hover,
.navbar-light .navbar-nav .nav-link.active {
  color: var(--brand-strong);
}

.hero {
  position: relative;
  display: flex;
  align-items: center;
  min-height: 84vh;
  padding: 8.5rem 0 5rem;
  background:
    linear-gradient(120deg, rgba(14, 33, 50, 0.65), rgba(14, 33, 50, 0.35)),
    url("../assets/backdrop.jpg") center 33% / cover no-repeat;
  overflow: hidden;
}

.hero::after {
  content: "";
  position: absolute;
  inset: auto 0 0;
  height: 200px;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 860px;
}

.hero-kicker {
  margin-bottom: 0.85rem;
  color: #c7deef;
  font-size: 0.83rem;
  font-weight: 700;
  letter-spacing: 0.22em;
  text-transform: uppercase;
}

.hero h1 {
  margin-bottom: 1rem;
  color: #f5f9fc;
  font-family: "Sora", "Manrope", sans-serif;
  font-size: clamp(2rem, 4.4vw, 4.1rem);
  font-weight: 700;
  line-height: 1.1;
  max-width: 13ch;
}

.hero-subtext {
  color: #dae8f3;
  font-size: clamp(1rem, 1.5vw, 1.2rem);
  max-width: 56ch;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 2rem;
}

.hero-btn {
  border-radius: 999px;
  font-size: 0.93rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  padding: 0.8rem 1.45rem;
  text-transform: uppercase;
}

.btn-primary.hero-btn {
  background-color: #f5f9fc;
  border-color: #f5f9fc;
  color: var(--ink-900);
}

.btn-primary.hero-btn:hover {
  background-color: #e6eff6;
  border-color: #e6eff6;
  color: var(--ink-900);
}

.btn-outline-primary.hero-btn {
  border-color: #d2e7f0;
  color: #e7f3f8;
}

.btn-outline-primary.hero-btn:hover {
  background-color: rgba(240, 249, 255, 0.18);
  border-color: #f1f8fc;
  color: #f4fbff;
}

.portfolio-section {
  padding: 5.2rem 0;
}

.section-surface {
  background: transparent;
}

.section-muted {
  background: linear-gradient(180deg, rgba(235, 244, 250, 0.7) 0%, rgba(235, 244, 250, 0.35) 100%);
}

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

.section-heading h2 {
  margin-bottom: 0.5rem;
  color: var(--ink-900);
  font-family: "Sora", "Manrope", sans-serif;
  font-size: clamp(1.55rem, 2.7vw, 2.35rem);
  font-weight: 700;
  letter-spacing: 0.01em;
}

.section-heading p {
  margin: 0;
  color: var(--text-700);
  font-size: 1rem;
  max-width: 70ch;
}

.about-card,
.contact-card {
  background: var(--surface);
  border: 1px solid rgba(38, 74, 103, 0.14);
  border-radius: 18px;
  box-shadow: var(--shadow-sm);
}

.about-card {
  max-width: 860px;
  padding: 1.6rem 1.75rem;
}

.about-card p {
  margin: 0;
  color: var(--text-700);
  font-size: 1.02rem;
}

.contact-card {
  align-items: center;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  margin-top: 1.4rem;
  max-width: 470px;
  padding: 1.6rem 1.2rem;
}

.contact-card img {
  border-radius: 12px;
  height: 72px;
  object-fit: contain;
  width: 72px;
}

.contact-card a {
  color: var(--brand-strong);
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: 0.01em;
}

.contact-card a:hover {
  color: #0f4f5a;
  text-decoration: none;
}

.site-footer {
  border-top: 1px solid rgba(21, 51, 73, 0.14);
  color: var(--ink-700);
  font-size: 0.95rem;
  padding: 1.6rem 0 1.9rem;
}

@media (max-width: 991.98px) {
  .site-nav .container {
    padding-left: 1rem;
    padding-right: 1rem;
  }

  .navbar-collapse {
    margin-top: 0.7rem;
    padding: 0.55rem 0.35rem;
    background: rgba(245, 250, 255, 0.96);
    border: 1px solid rgba(24, 55, 79, 0.12);
    border-radius: 12px;
  }

  .navbar-light .navbar-nav .nav-link {
    margin-left: 0;
    padding: 0.6rem 0.85rem;
  }

  .hero {
    min-height: 76vh;
    padding-top: 7.2rem;
  }
}

@media (max-width: 767.98px) {
  .portfolio-section {
    padding: 4.2rem 0;
  }

  .about-card,
  .contact-card {
    border-radius: 14px;
    padding: 1.3rem 1.15rem;
  }

  .hero-actions {
    width: 100%;
  }

  .hero-btn {
    width: 100%;
  }
}