@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:wght@400;600;700;900&family=DM+Sans:wght@300;400;500;600&display=swap');

:root {
  --navy: #0a1628;
  --navy-mid: #112240;
  --teal: #00e6b4;
  --teal-dark: #00b890;
  --gold: #f5c842;
  --white: #f8fafc;
  --gray: #8892a4;
  --light-bg: #f0f4f8;
  --card-bg: #ffffff;
  --border: #e2e8f0;
  --text: #1e293b;
  --text-light: #64748b;
  --shadow: 0 4px 24px rgba(0,0,0,0.08);
  --shadow-lg: 0 12px 48px rgba(0,0,0,0.15);
}

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

html { scroll-behavior: smooth; }

body {
  font-family: 'DM Sans', sans-serif;
  color: var(--text);
  background: var(--white);
  line-height: 1.7;
  font-size: 16px;
}

h1, h2, h3, h4 {
  font-family: 'Playfair Display', serif;
  line-height: 1.2;
  color: var(--navy);
}

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

/* ========== NAVBAR ========== */
nav {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(10, 22, 40, 0.97);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(0,230,180,0.15);
  padding: 0 5%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.nav-logo img { height: 44px; }

.nav-links {
  display: flex;
  gap: 2rem;
  list-style: none;
}

.nav-links a {
  color: rgba(255,255,255,0.8);
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.03em;
  transition: color 0.2s;
  padding: 6px 0;
  border-bottom: 2px solid transparent;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--teal);
  border-bottom-color: var(--teal);
}

.nav-cta {
  background: var(--teal);
  color: var(--navy) !important;
  padding: 8px 20px !important;
  border-radius: 6px;
  font-weight: 600 !important;
  border-bottom: none !important;
}

.nav-cta:hover { background: var(--teal-dark) !important; }

.hamburger { display: none; cursor: pointer; flex-direction: column; gap: 5px; }
.hamburger span { display: block; width: 24px; height: 2px; background: #fff; border-radius: 2px; transition: 0.3s; }

/* ========== BUTTONS ========== */
.btn {
  display: inline-block;
  padding: 14px 32px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.95rem;
  transition: all 0.25s;
  cursor: pointer;
  border: none;
  font-family: 'DM Sans', sans-serif;
}
.btn-primary { background: var(--teal); color: var(--navy); }
.btn-primary:hover { background: var(--teal-dark); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(0,230,180,0.35); }
.btn-outline { background: transparent; border: 2px solid var(--teal); color: var(--teal); }
.btn-outline:hover { background: var(--teal); color: var(--navy); }
.btn-white { background: #fff; color: var(--navy); }
.btn-white:hover { background: var(--teal); }

/* ========== HERO ========== */
.hero {
  min-height: 92vh;
  background: linear-gradient(135deg, var(--navy) 0%, #0d2547 60%, #0a3d62 100%);
  display: flex;
  align-items: center;
  padding: 80px 5%;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(0,230,180,0.12) 0%, transparent 70%);
  top: -100px; right: -100px;
  border-radius: 50%;
}

.hero::after {
  content: '';
  position: absolute;
  width: 400px; height: 400px;
  background: radial-gradient(circle, rgba(245,200,66,0.07) 0%, transparent 70%);
  bottom: -50px; left: 10%;
  border-radius: 50%;
}

.hero-content { max-width: 620px; z-index: 2; }
.hero-badge {
  display: inline-block;
  background: rgba(0,230,180,0.15);
  border: 1px solid rgba(0,230,180,0.3);
  color: var(--teal);
  padding: 6px 16px;
  border-radius: 20px;
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 24px;
}

.hero h1 {
  font-size: clamp(2.6rem, 5vw, 4rem);
  color: #fff;
  margin-bottom: 24px;
  font-weight: 900;
}

.hero h1 span { color: var(--teal); }

.hero p {
  font-size: 1.15rem;
  color: rgba(255,255,255,0.75);
  margin-bottom: 40px;
  max-width: 520px;
}

.hero-btns { display: flex; gap: 16px; flex-wrap: wrap; }

.hero-stats {
  display: flex;
  gap: 40px;
  margin-top: 60px;
  padding-top: 40px;
  border-top: 1px solid rgba(255,255,255,0.1);
  flex-wrap: wrap;
}

.hero-stat-num {
  font-family: 'Playfair Display', serif;
  font-size: 2rem;
  font-weight: 700;
  color: var(--teal);
}
.hero-stat-label { font-size: 0.85rem; color: rgba(255,255,255,0.55); }

/* ========== SECTIONS ========== */
section { padding: 80px 5%; }
.section-label {
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--teal-dark);
  margin-bottom: 12px;
}
.section-title { font-size: clamp(1.8rem, 3vw, 2.6rem); margin-bottom: 16px; }
.section-sub { color: var(--text-light); max-width: 580px; font-size: 1.05rem; }
.section-header { margin-bottom: 56px; }
.text-center { text-align: center; }
.text-center .section-sub { margin: 0 auto; }

/* ========== CARDS ========== */
.card {
  background: var(--card-bg);
  border-radius: 16px;
  box-shadow: var(--shadow);
  overflow: hidden;
  transition: transform 0.3s, box-shadow 0.3s;
  border: 1px solid var(--border);
}
.card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.card-img { width: 100%; height: 220px; object-fit: cover; }
.card-body { padding: 28px; }
.card-tag {
  display: inline-block;
  background: rgba(0,184,144,0.1);
  color: var(--teal-dark);
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 0.78rem;
  font-weight: 600;
  margin-bottom: 14px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.card h3 { font-size: 1.2rem; margin-bottom: 10px; }
.card p { color: var(--text-light); font-size: 0.93rem; }

/* ========== GRID ========== */
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 32px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }

/* ========== FEATURES ========== */
.features-bg { background: var(--light-bg); }

.feature-icon {
  width: 56px; height: 56px;
  background: linear-gradient(135deg, var(--teal), var(--teal-dark));
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  margin-bottom: 20px;
}

.feature-card {
  background: #fff;
  padding: 32px;
  border-radius: 16px;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  transition: transform 0.3s;
}
.feature-card:hover { transform: translateY(-4px); }
.feature-card h3 { font-size: 1.15rem; margin-bottom: 10px; }
.feature-card p { color: var(--text-light); font-size: 0.92rem; }

/* ========== DARK SECTION ========== */
.dark-section {
  background: var(--navy);
  color: #fff;
}
.dark-section .section-title { color: #fff; }
.dark-section .section-sub { color: rgba(255,255,255,0.65); }

/* ========== NEWSLETTER ========== */
.newsletter-form {
  display: flex;
  gap: 12px;
  max-width: 500px;
  margin: 32px auto 0;
  flex-wrap: wrap;
}
.newsletter-form input {
  flex: 1;
  padding: 14px 20px;
  border-radius: 8px;
  border: 1px solid var(--border);
  font-family: 'DM Sans', sans-serif;
  font-size: 0.95rem;
  min-width: 200px;
}
.newsletter-form input:focus { outline: 2px solid var(--teal); border-color: transparent; }

/* ========== ARTICLE PAGE ========== */
.article-hero {
  background: linear-gradient(135deg, var(--navy) 0%, #0d2547 100%);
  padding: 100px 5% 60px;
  color: #fff;
}
.article-hero h1 { color: #fff; font-size: clamp(2rem, 4vw, 3rem); max-width: 760px; }
.article-meta { display: flex; gap: 20px; align-items: center; margin-top: 24px; flex-wrap: wrap; }
.article-meta span { font-size: 0.88rem; color: rgba(255,255,255,0.65); }
.article-meta .tag { background: rgba(0,230,180,0.2); color: var(--teal); padding: 4px 12px; border-radius: 20px; font-size: 0.8rem; font-weight: 600; }

.article-body { max-width: 780px; margin: 0 auto; padding: 60px 5%; }
.article-body h2 { font-size: 1.6rem; margin: 40px 0 16px; color: var(--navy); }
.article-body h3 { font-size: 1.25rem; margin: 30px 0 12px; }
.article-body p { margin-bottom: 20px; color: var(--text); line-height: 1.85; }
.article-body ul, .article-body ol { padding-left: 24px; margin-bottom: 20px; }
.article-body li { margin-bottom: 8px; line-height: 1.75; }
.article-body .tip-box {
  background: rgba(0,230,180,0.08);
  border-left: 4px solid var(--teal);
  padding: 20px 24px;
  border-radius: 0 12px 12px 0;
  margin: 32px 0;
}
.article-body .tip-box strong { color: var(--teal-dark); }
.article-body img { border-radius: 12px; margin: 32px 0; width: 100%; object-fit: cover; height: 360px; }

/* ========== TOOLS PAGE ========== */
.tool-card {
  background: #fff;
  border-radius: 16px;
  padding: 36px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  text-align: center;
  transition: 0.3s;
}
.tool-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); }
.tool-icon { font-size: 2.8rem; margin-bottom: 20px; }
.tool-card h3 { font-size: 1.2rem; margin-bottom: 12px; }
.tool-card p { color: var(--text-light); font-size: 0.92rem; margin-bottom: 24px; }

/* ========== CALCULATOR ========== */
.calculator {
  background: var(--navy);
  border-radius: 20px;
  padding: 40px;
  color: #fff;
  max-width: 560px;
}
.calc-title { font-size: 1.5rem; color: #fff; margin-bottom: 28px; }
.calc-group { margin-bottom: 20px; }
.calc-group label { display: block; font-size: 0.88rem; color: rgba(255,255,255,0.7); margin-bottom: 8px; font-weight: 500; }
.calc-group input, .calc-group select {
  width: 100%;
  padding: 12px 16px;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: 8px;
  color: #fff;
  font-family: 'DM Sans', sans-serif;
  font-size: 1rem;
}
.calc-group input:focus, .calc-group select:focus { outline: 2px solid var(--teal); }
.calc-group select option { background: var(--navy); }
.calc-result {
  background: rgba(0,230,180,0.12);
  border: 1px solid rgba(0,230,180,0.3);
  border-radius: 12px;
  padding: 20px;
  margin-top: 24px;
  text-align: center;
}
.calc-result-label { font-size: 0.85rem; color: rgba(255,255,255,0.6); }
.calc-result-value { font-family: 'Playfair Display', serif; font-size: 2.2rem; color: var(--teal); font-weight: 700; }

/* ========== ABOUT PAGE ========== */
.team-card { text-align: center; }
.team-photo { width: 120px; height: 120px; border-radius: 50%; object-fit: cover; margin: 0 auto 16px; border: 4px solid var(--teal); }
.team-name { font-size: 1.1rem; font-weight: 600; margin-bottom: 4px; }
.team-role { font-size: 0.88rem; color: var(--text-light); }

.value-item { display: flex; gap: 20px; align-items: flex-start; margin-bottom: 32px; }
.value-num { font-family: 'Playfair Display', serif; font-size: 2.5rem; color: var(--teal); font-weight: 900; line-height: 1; min-width: 48px; }
.value-text h4 { font-size: 1.1rem; margin-bottom: 6px; }
.value-text p { color: var(--text-light); font-size: 0.93rem; }

/* ========== CONTACT PAGE ========== */
.contact-form { background: #fff; border-radius: 20px; padding: 48px; box-shadow: var(--shadow-lg); border: 1px solid var(--border); }
.form-group { margin-bottom: 24px; }
.form-group label { display: block; font-weight: 500; margin-bottom: 8px; font-size: 0.9rem; }
.form-group input, .form-group textarea, .form-group select {
  width: 100%;
  padding: 14px 16px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-family: 'DM Sans', sans-serif;
  font-size: 0.95rem;
  color: var(--text);
  background: var(--light-bg);
  transition: border-color 0.2s;
}
.form-group input:focus, .form-group textarea:focus { outline: none; border-color: var(--teal); background: #fff; }
.form-group textarea { resize: vertical; min-height: 140px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }

.contact-info-item { display: flex; gap: 16px; align-items: flex-start; margin-bottom: 28px; }
.contact-icon { width: 48px; height: 48px; background: rgba(0,230,180,0.12); border-radius: 12px; display: flex; align-items: center; justify-content: center; font-size: 1.3rem; flex-shrink: 0; }
.contact-info-item h4 { font-size: 0.95rem; margin-bottom: 4px; }
.contact-info-item p { color: var(--text-light); font-size: 0.9rem; }

/* ========== BREADCRUMB ========== */
.breadcrumb {
  background: var(--light-bg);
  padding: 14px 5%;
  font-size: 0.85rem;
  color: var(--text-light);
}
.breadcrumb a { color: var(--teal-dark); }
.breadcrumb a:hover { text-decoration: underline; }

/* ========== FOOTER ========== */
footer {
  background: var(--navy);
  color: rgba(255,255,255,0.65);
  padding: 64px 5% 32px;
}
.footer-top { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 48px; margin-bottom: 48px; }
.footer-brand img { height: 40px; margin-bottom: 20px; }
.footer-brand p { font-size: 0.9rem; line-height: 1.75; max-width: 300px; }
.footer-col h4 { color: #fff; font-family: 'DM Sans', sans-serif; font-size: 0.9rem; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase; margin-bottom: 20px; }
.footer-col ul { list-style: none; }
.footer-col ul li { margin-bottom: 12px; }
.footer-col ul a { color: rgba(255,255,255,0.6); font-size: 0.9rem; transition: color 0.2s; }
.footer-col ul a:hover { color: var(--teal); }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.08); padding-top: 28px; display: flex; justify-content: space-between; align-items: center; flex-wrap: gap; }
.footer-bottom p { font-size: 0.85rem; }
.footer-social { display: flex; gap: 12px; }
.social-link {
  width: 36px; height: 36px;
  background: rgba(255,255,255,0.08);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  transition: background 0.2s;
}
.social-link:hover { background: var(--teal); color: var(--navy); }

/* ========== PAGINATION ========== */
.pagination { display: flex; gap: 8px; justify-content: center; margin-top: 48px; }
.page-btn {
  width: 40px; height: 40px;
  border-radius: 8px;
  border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  font-size: 0.9rem;
  cursor: pointer;
  transition: 0.2s;
  background: #fff;
}
.page-btn:hover, .page-btn.active { background: var(--teal); border-color: var(--teal); color: var(--navy); font-weight: 600; }

/* ========== BANNER ========== */
.cta-banner {
  background: linear-gradient(135deg, var(--teal) 0%, var(--teal-dark) 100%);
  padding: 60px 5%;
  text-align: center;
}
.cta-banner h2 { color: var(--navy); font-size: 2rem; margin-bottom: 16px; }
.cta-banner p { color: rgba(10,22,40,0.75); margin-bottom: 32px; }

/* ========== RESPONSIVE ========== */
@media (max-width: 1024px) {
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .footer-top { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .nav-links { display: none; flex-direction: column; position: absolute; top: 72px; left: 0; right: 0; background: var(--navy); padding: 20px 5%; gap: 0; }
  .nav-links.open { display: flex; }
  .nav-links li { border-bottom: 1px solid rgba(255,255,255,0.06); }
  .nav-links a { display: block; padding: 14px 0; }
  .hamburger { display: flex; }
  .grid-3, .grid-2, .grid-4 { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .hero { padding: 60px 5%; min-height: auto; }
  .hero-stats { gap: 24px; }
  nav { padding: 0 4%; }
}