/* =========================================================
   Kalinda Services — Stylesheet
   ========================================================= */

:root {
  --color-primary: #0b2a4a;
  --color-primary-dark: #071b30;
  --color-accent: #0ea5a4;
  --color-accent-dark: #0b8483;
  --color-bg: #f6f9fb;
  --color-surface: #ffffff;
  --color-text: #1f2937;
  --color-text-light: #5b6b7b;
  --color-border: #e3e9ef;
  --shadow-sm: 0 1px 3px rgba(11, 42, 74, 0.08);
  --shadow-md: 0 8px 24px rgba(11, 42, 74, 0.1);
  --shadow-lg: 0 20px 45px rgba(11, 42, 74, 0.16);
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --font-heading: 'Poppins', 'Segoe UI', Arial, sans-serif;
  --font-body: 'Inter', 'Segoe UI', Arial, sans-serif;
  --container-width: 1180px;
  --transition: 0.25s ease;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }

a { color: inherit; text-decoration: none; }

ul { list-style: none; }

h1, h2, h3, h4 {
  font-family: var(--font-heading);
  font-weight: 600;
  line-height: 1.25;
  color: var(--color-primary);
}

.container {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
}

section { padding: 80px 0; }

.section-tight { padding: 56px 0; }

.section-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 48px;
}

.eyebrow {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent-dark);
  background: rgba(14, 165, 164, 0.1);
  padding: 6px 14px;
  border-radius: 999px;
  margin-bottom: 16px;
}

.section-header h2 {
  font-size: clamp(1.7rem, 3vw, 2.4rem);
  margin-bottom: 14px;
}

.section-header p {
  color: var(--color-text-light);
  font-size: 1.05rem;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 28px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.95rem;
  border: 2px solid transparent;
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition), color var(--transition);
  white-space: nowrap;
}

.btn-primary {
  background: var(--color-accent);
  color: #fff;
  box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
  background: var(--color-accent-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-outline {
  background: transparent;
  border-color: rgba(255, 255, 255, 0.55);
  color: #fff;
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.12);
  transform: translateY(-2px);
}

.btn-dark {
  background: var(--color-primary);
  color: #fff;
}

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

.btn-block { width: 100%; }

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
  max-width: var(--container-width);
  margin: 0 auto;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.3rem;
  color: var(--color-primary);
}

.logo-mark {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 700;
  font-size: 1.1rem;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 34px;
}

.nav-links a {
  font-weight: 500;
  font-size: 0.95rem;
  color: var(--color-text);
  position: relative;
  padding: 6px 0;
  transition: color var(--transition);
}

.nav-links a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -2px;
  height: 2px;
  width: 0;
  background: var(--color-accent);
  transition: width var(--transition);
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--color-accent-dark);
}

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

.nav-cta { display: flex; align-items: center; gap: 18px; }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
}

.nav-toggle span {
  width: 26px;
  height: 2.5px;
  background: var(--color-primary);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}

/* ---------- Hero ---------- */
.hero {
  background: linear-gradient(135deg, var(--color-primary) 0%, #123a63 55%, var(--color-primary-dark) 100%);
  color: #fff;
  padding: 110px 0 100px;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  width: 560px;
  height: 560px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(14, 165, 164, 0.35), transparent 70%);
  top: -220px;
  right: -160px;
}

.hero .container {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: center;
  position: relative;
}

.hero-eyebrow {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: #a7f3ec;
  background: rgba(255, 255, 255, 0.1);
  padding: 6px 14px;
  border-radius: 999px;
  margin-bottom: 20px;
}

.hero h1 {
  color: #fff;
  font-size: clamp(2.1rem, 4.4vw, 3.2rem);
  margin-bottom: 20px;
}

.hero p {
  color: #d7e2ec;
  font-size: 1.1rem;
  margin-bottom: 32px;
  max-width: 540px;
}

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

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin-top: 52px;
}

.hero-stats div {
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: var(--radius-md);
  padding: 18px 14px;
  text-align: center;
}

.hero-stats strong {
  display: block;
  font-family: var(--font-heading);
  font-size: 1.6rem;
  color: #fff;
}

.hero-stats span {
  font-size: 0.82rem;
  color: #b9c9d8;
}

.hero-panel {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: var(--radius-lg);
  padding: 34px;
  backdrop-filter: blur(6px);
}

.hero-panel h3 {
  color: #fff;
  font-size: 1.15rem;
  margin-bottom: 18px;
}

.hero-panel ul li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  color: #e2ebf3;
  font-size: 0.95rem;
  padding: 10px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.hero-panel ul li:last-child { border-bottom: none; }

.hero-panel .check {
  flex-shrink: 0;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--color-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
}

/* ---------- Page hero (inner pages) ---------- */
.page-hero {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  color: #fff;
  padding: 74px 0 64px;
  text-align: center;
}

.page-hero .eyebrow {
  background: rgba(255, 255, 255, 0.1);
  color: #a7f3ec;
}

.page-hero h1 { color: #fff; font-size: clamp(1.9rem, 3.6vw, 2.6rem); margin-bottom: 12px; }

.page-hero p { color: #ccdae7; max-width: 640px; margin: 0 auto; }

.breadcrumb {
  margin-top: 18px;
  font-size: 0.85rem;
  color: #a9bdcf;
}

.breadcrumb a { color: #cfe3f0; }
.breadcrumb a:hover { color: #fff; }

/* ---------- Services grid ---------- */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
}

.service-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 32px 26px;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}

.service-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
  border-color: rgba(14, 165, 164, 0.35);
}

.service-icon {
  width: 54px;
  height: 54px;
  border-radius: 14px;
  background: rgba(14, 165, 164, 0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-accent-dark);
  margin-bottom: 20px;
}

.service-card h3 { font-size: 1.15rem; margin-bottom: 10px; }

.service-card p { color: var(--color-text-light); font-size: 0.95rem; margin-bottom: 16px; }

.service-card .link-more {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--color-accent-dark);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

/* ---------- Detailed service sections ---------- */
.service-detail {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
  padding: 56px 0;
  border-bottom: 1px solid var(--color-border);
}

.service-detail:last-child { border-bottom: none; }

.service-detail.reverse .service-detail-media { order: 2; }

.service-detail-media {
  background: linear-gradient(135deg, rgba(11, 42, 74, 0.06), rgba(14, 165, 164, 0.12));
  border-radius: var(--radius-lg);
  padding: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 280px;
}

.service-detail-media .icon-xl {
  width: 110px;
  height: 110px;
  border-radius: 26px;
  background: var(--color-surface);
  box-shadow: var(--shadow-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-accent-dark);
}

.service-detail h2 { font-size: 1.6rem; margin-bottom: 14px; }
.service-detail > div > p { color: var(--color-text-light); margin-bottom: 18px; }

.feature-list li {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  padding: 8px 0;
  color: var(--color-text);
  font-size: 0.95rem;
}

.feature-list .dot {
  flex-shrink: 0;
  width: 8px;
  height: 8px;
  margin-top: 8px;
  border-radius: 50%;
  background: var(--color-accent);
}

/* ---------- Why us / features ---------- */
.features-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.feature-card {
  text-align: center;
  padding: 28px 18px;
}

.feature-card .service-icon {
  margin: 0 auto 18px;
}

.feature-card h4 { font-size: 1.02rem; margin-bottom: 8px; }
.feature-card p { color: var(--color-text-light); font-size: 0.9rem; }

/* ---------- CTA band ---------- */
.cta-band {
  background: linear-gradient(120deg, var(--color-accent-dark), var(--color-primary));
  color: #fff;
  border-radius: var(--radius-lg);
  padding: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
  flex-wrap: wrap;
}

.cta-band h2 { color: #fff; font-size: 1.7rem; margin-bottom: 8px; }
.cta-band p { color: #dfeef0; }

/* ---------- About page ---------- */
.about-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 54px;
  align-items: center;
}

.about-media {
  background: linear-gradient(160deg, var(--color-primary), var(--color-accent-dark));
  border-radius: var(--radius-lg);
  min-height: 380px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-family: var(--font-heading);
  font-size: 1.4rem;
  text-align: center;
  padding: 40px;
  box-shadow: var(--shadow-lg);
}

.values-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.value-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 26px;
}

.value-card h4 { margin-bottom: 8px; font-size: 1.05rem; }
.value-card p { color: var(--color-text-light); font-size: 0.92rem; }

.timeline {
  border-left: 2px solid var(--color-border);
  margin-left: 10px;
  padding-left: 30px;
}

.timeline-item { position: relative; padding-bottom: 34px; }
.timeline-item:last-child { padding-bottom: 0; }

.timeline-item::before {
  content: "";
  position: absolute;
  left: -37px;
  top: 4px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--color-accent);
  border: 3px solid var(--color-bg);
}

.timeline-item h4 { font-size: 1.02rem; margin-bottom: 4px; }
.timeline-item span { font-size: 0.82rem; color: var(--color-accent-dark); font-weight: 700; }
.timeline-item p { color: var(--color-text-light); font-size: 0.9rem; margin-top: 6px; }

/* ---------- Contact page ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.15fr;
  gap: 40px;
  align-items: start;
}

.contact-info-card {
  background: var(--color-primary);
  color: #fff;
  border-radius: var(--radius-lg);
  padding: 40px 32px;
}

.contact-info-card h3 { color: #fff; margin-bottom: 10px; }
.contact-info-card p { color: #c7d7e5; margin-bottom: 28px; font-size: 0.95rem; }

.contact-item {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  padding: 14px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.14);
}

.contact-item:first-of-type { border-top: none; }

.contact-item .service-icon {
  background: rgba(255, 255, 255, 0.12);
  color: #a7f3ec;
}

.contact-item h5 { font-size: 0.9rem; color: #fff; margin-bottom: 3px; }
.contact-item p, .contact-item a { font-size: 0.88rem; color: #c7d7e5; }

.social-row { display: flex; gap: 10px; margin-top: 26px; }

.social-row a {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  transition: background var(--transition);
}

.social-row a:hover { background: var(--color-accent); }

.contact-form {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: var(--shadow-sm);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}

.form-group { margin-bottom: 20px; }

.form-group label {
  display: block;
  font-size: 0.88rem;
  font-weight: 600;
  margin-bottom: 7px;
  color: var(--color-text);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--color-text);
  background: #fbfdfe;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.form-group textarea { resize: vertical; min-height: 130px; }

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(14, 165, 164, 0.15);
}

.form-error {
  color: #d64545;
  font-size: 0.8rem;
  margin-top: 5px;
  display: none;
}

.form-group.invalid input,
.form-group.invalid select,
.form-group.invalid textarea {
  border-color: #d64545;
}

.form-group.invalid .form-error { display: block; }

.form-status {
  margin-top: 18px;
  padding: 14px 16px;
  border-radius: var(--radius-sm);
  font-size: 0.92rem;
  display: none;
}

.form-status.success {
  display: block;
  background: rgba(14, 165, 164, 0.12);
  color: var(--color-accent-dark);
  border: 1px solid rgba(14, 165, 164, 0.3);
}

.map-note {
  margin-top: 36px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border);
  height: 260px;
  background: repeating-linear-gradient(135deg, #eef3f7, #eef3f7 12px, #e6edf3 12px, #e6edf3 24px);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-light);
  font-size: 0.9rem;
  text-align: center;
  padding: 20px;
}

/* ---------- Legal pages ---------- */
.legal-content {
  max-width: 840px;
  margin: 0 auto;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 48px;
}

.legal-content .updated {
  display: inline-block;
  font-size: 0.85rem;
  color: var(--color-text-light);
  background: var(--color-bg);
  padding: 6px 14px;
  border-radius: 999px;
  margin-bottom: 30px;
}

.legal-content h2 {
  font-size: 1.25rem;
  margin-top: 34px;
  margin-bottom: 12px;
}

.legal-content h2:first-of-type { margin-top: 0; }

.legal-content p { color: var(--color-text-light); margin-bottom: 14px; font-size: 0.97rem; }

.legal-content ul { margin: 0 0 14px 0; }

.legal-content ul li {
  color: var(--color-text-light);
  font-size: 0.97rem;
  padding-left: 20px;
  position: relative;
  margin-bottom: 8px;
}

.legal-content ul li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-accent);
}

.legal-content a { color: var(--color-accent-dark); font-weight: 600; }

.legal-toc {
  max-width: 840px;
  margin: 0 auto 24px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.legal-toc a {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--color-primary);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  padding: 8px 14px;
  border-radius: 999px;
  transition: all var(--transition);
}

.legal-toc a:hover { background: var(--color-accent); color: #fff; border-color: var(--color-accent); }

/* ---------- Footer ---------- */
.site-footer {
  background: var(--color-primary-dark);
  color: #b7c6d3;
  padding: 64px 0 28px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #fff;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.2rem;
  margin-bottom: 14px;
}

.footer-col h5 {
  color: #fff;
  font-size: 0.95rem;
  margin-bottom: 18px;
  letter-spacing: 0.02em;
}

.footer-col ul li { margin-bottom: 12px; }

.footer-col ul li a { font-size: 0.9rem; transition: color var(--transition); }

.footer-col ul li a:hover { color: var(--color-accent); }

.footer-col p { font-size: 0.9rem; line-height: 1.7; }

.footer-bottom {
  padding-top: 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 0.83rem;
}

.footer-bottom .legal-links { display: flex; gap: 20px; flex-wrap: wrap; }

/* ---------- Back to top ---------- */
.back-to-top {
  position: fixed;
  right: 26px;
  bottom: 26px;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: var(--color-accent);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-md);
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: all var(--transition);
  cursor: pointer;
  border: none;
  z-index: 900;
}

.back-to-top.show { opacity: 1; visibility: visible; transform: translateY(0); }

/* ---------- Utilities ---------- */
.text-center { text-align: center; }
.mt-40 { margin-top: 40px; }

/* ---------- Responsive ---------- */
@media (max-width: 980px) {
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .hero .container { grid-template-columns: 1fr; }
  .hero-panel { order: -1; }
  .about-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 760px) {
  .nav-links {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: #fff;
    flex-direction: column;
    align-items: flex-start;
    padding: 20px 24px;
    gap: 16px;
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-md);
    display: none;
  }
  .nav-links.open { display: flex; }
  .nav-toggle { display: flex; }
  .nav-cta .btn { display: none; }
  .services-grid { grid-template-columns: 1fr; }
  .features-grid { grid-template-columns: 1fr; }
  .service-detail { grid-template-columns: 1fr; }
  .service-detail.reverse .service-detail-media { order: 0; }
  .form-row { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .cta-band { flex-direction: column; text-align: center; }
  .hero-stats { grid-template-columns: 1fr; }
  .legal-content { padding: 28px; }
}