/* ==========================================================================
   Kandiga Web Solutions — Stylesheet
   Structure:
   1. Design tokens (CSS variables)  2. Reset & base  3. Layout helpers
   4. Header / nav  5. Hero  6. Sections & cards  7. Pricing  8. Process
   9. CTA band  10. Contact  11. Footer  12. Floating buttons  13. Animations
   14. Responsive breakpoints
   ========================================================================== */

/* ---------- 1. DESIGN TOKENS ---------- */
:root {
  /* Brand colors: deep ink-blue as the anchor, warm amber as the single accent */
  --color-ink: #10233f;
  --color-ink-soft: #1b3a61;
  --color-accent: #e8a33d;
  --color-accent-dark: #c9852a;

  --color-bg: #fafaf8;
  --color-surface: #ffffff;
  --color-border: #e6e5e0;
  --color-text: #1b2430;
  --color-muted: #5b6572;

  --radius-card: 14px;
  --radius-btn: 10px;
  --shadow-card: 0 1px 2px rgba(16, 35, 63, 0.06), 0 8px 24px -12px rgba(16, 35, 63, 0.18);

  --font-heading: "Space Grotesk", "Segoe UI", sans-serif;
  --font-body: "Inter", "Segoe UI", sans-serif;

  --container-width: 1120px;
  --transition-fast: 160ms ease;
  --transition-med: 280ms ease;
}

/* Dark mode overrides — applied via [data-theme="dark"] on <html> */
[data-theme="dark"] {
  --color-bg: #0b1626;
  --color-surface: #122238;
  --color-border: #223753;
  --color-text: #e7ecf3;
  --color-muted: #9aabc2;
  --shadow-card: 0 1px 2px rgba(0, 0, 0, 0.3), 0 8px 24px -12px rgba(0, 0, 0, 0.5);
}

/* ---------- 2. RESET & BASE ---------- */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-body);
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  transition: background-color var(--transition-med), color var(--transition-med);
}

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

h1, h2, h3 {
  font-family: var(--font-heading);
  line-height: 1.15;
  margin: 0 0 0.5em;
  color: var(--color-text);
}

h2 { font-size: clamp(1.6rem, 1.2rem + 1.6vw, 2.3rem); }
h3 { font-size: 1.15rem; }

p { margin: 0 0 1em; }

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

ul, ol { margin: 0; padding: 0; list-style: none; }

button {
  font-family: inherit;
  cursor: pointer;
}

/* Visible keyboard focus everywhere */
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--color-ink);
  color: #fff;
  padding: 0.75em 1.25em;
  z-index: 1000;
  border-radius: 0 0 8px 0;
}
.skip-link:focus {
  left: 0;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
}

/* ---------- 3. LAYOUT HELPERS ---------- */
.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 88px 0;
}

.section-alt {
  background-color: var(--color-surface);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.section-head {
  max-width: 620px;
  margin: 0 0 48px;
}

.section-head p {
  color: var(--color-muted);
  font-size: 1.05rem;
}

.grid {
  display: grid;
  gap: 24px;
}

.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 0.85em 1.6em;
  border-radius: var(--radius-btn);
  font-weight: 600;
  font-size: 0.95rem;
  border: 1px solid transparent;
  transition: transform var(--transition-fast), background-color var(--transition-fast), border-color var(--transition-fast);
  white-space: nowrap;
}

.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }

.btn-primary {
  background-color: var(--color-accent);
  color: #17140c;
}
.btn-primary:hover { background-color: var(--color-accent-dark); }

.btn-ghost {
  background-color: transparent;
  color: var(--color-text);
  border-color: var(--color-border);
}
.btn-ghost:hover { border-color: var(--color-accent); }

.btn-outline {
  background-color: transparent;
  color: var(--color-ink);
  border-color: var(--color-ink);
}
[data-theme="dark"] .btn-outline {
  color: var(--color-text);
  border-color: var(--color-text);
}
.btn-outline:hover {
  background-color: var(--color-ink);
  color: #fff;
}
[data-theme="dark"] .btn-outline:hover {
  background-color: var(--color-text);
  color: var(--color-ink);
}

.btn-lg {
  padding: 1em 2.2em;
  font-size: 1.05rem;
}

/* ---------- 4. HEADER / NAV ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 500;
  background-color: color-mix(in srgb, var(--color-bg) 88%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
}

.navbar {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.brand-name {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.2rem;
  color: var(--color-text);
}

.brand-suffix {
  color: var(--color-accent);
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-link {
  font-weight: 500;
  color: var(--color-muted);
  padding: 6px 2px;
  border-bottom: 2px solid transparent;
  transition: color var(--transition-fast), border-color var(--transition-fast);
}

.nav-link:hover,
.nav-link.active-link {
  color: var(--color-text);
  border-bottom-color: var(--color-accent);
}

.nav-cta-wrap { margin-left: 8px; }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  padding: 8px;
}

.nav-toggle-bar {
  width: 22px;
  height: 2px;
  background-color: var(--color-text);
  border-radius: 2px;
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

/* ---------- 5. HERO ---------- */
.hero {
  padding: 72px 0 96px;
}

.hero-inner {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 56px;
  align-items: center;
}

.hero-kicker {
  color: var(--color-accent-dark);
  font-weight: 600;
  margin-bottom: 0.6em;
}
[data-theme="dark"] .hero-kicker { color: var(--color-accent); }

.hero-title {
  font-size: clamp(2.1rem, 1.5rem + 2.6vw, 3.4rem);
  letter-spacing: -0.01em;
}

.hero-sub {
  font-size: 1.1rem;
  color: var(--color-muted);
  max-width: 46ch;
}

.hero-actions {
  display: flex;
  gap: 16px;
  margin: 28px 0 40px;
  flex-wrap: wrap;
}

.hero-stats {
  display: flex;
  gap: 32px;
  flex-wrap: wrap;
  border-top: 1px solid var(--color-border);
  padding-top: 24px;
}

.stat-num {
  display: block;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.3rem;
  color: var(--color-text);
}

.stat-label {
  font-size: 0.85rem;
  color: var(--color-muted);
}

.hero-visual { position: relative; }

.hero-photo {
  width: 100%;
  height: auto;
  aspect-ratio: 9 / 8;
  object-fit: cover;
  border-radius: var(--radius-card);
  border: 1px solid var(--color-border);
  box-shadow: 0 12px 32px -12px rgba(16, 35, 63, 0.25);
}

/* ---------- 6. SECTIONS & CARDS ---------- */
.card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 28px;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-card);
}

.card-icon {
  width: 46px;
  height: 46px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  background-color: color-mix(in srgb, var(--color-accent) 16%, transparent);
  color: var(--color-accent-dark);
  margin-bottom: 18px;
}
[data-theme="dark"] .card-icon { color: var(--color-accent); }

.card p { color: var(--color-muted); margin-bottom: 0; }

.feature {
  padding: 4px 0;
}

.feature-icon {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  border: 1.5px solid var(--color-accent);
  color: var(--color-accent-dark);
  margin-bottom: 16px;
}
[data-theme="dark"] .feature-icon { color: var(--color-accent); }

.feature p { color: var(--color-muted); margin-bottom: 0; }

.about-grid {
  display: grid;
  grid-template-columns: 1fr 0.8fr;
  gap: 56px;
  align-items: center;
}

.about-copy p { color: var(--color-muted); max-width: 52ch; }

/* ---------- 7. PRICING ---------- */
.price-card {
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 32px 28px;
  display: flex;
  flex-direction: column;
  position: relative;
}

.price-card-featured {
  background-color: var(--color-ink);
  color: #fff;
  border-color: var(--color-ink);
}
.price-card-featured h3,
.price-card-featured .price-tag { color: #fff; }
.price-card-featured .price-list li { color: rgba(255,255,255,0.82); }
.price-card-featured .price-list li::before { color: var(--color-accent); }

.price-badge {
  position: absolute;
  top: -12px;
  left: 28px;
  background-color: var(--color-accent);
  color: #17140c;
  font-size: 0.78rem;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 999px;
}

.price-tag {
  font-weight: 600;
  color: var(--color-accent-dark);
  margin-bottom: 20px;
}
[data-theme="dark"] .price-tag:not(.price-card-featured .price-tag) { color: var(--color-accent); }

.price-list {
  flex: 1;
  margin-bottom: 28px;
}

.price-list li {
  padding: 7px 0;
  color: var(--color-muted);
  position: relative;
  padding-left: 24px;
}

.price-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--color-accent-dark);
  font-weight: 700;
}
[data-theme="dark"] .price-list li::before { color: var(--color-accent); }

/* ---------- 8. HOW IT WORKS ---------- */
.process-list {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.process-step {
  border-top: 2px solid var(--color-border);
  padding-top: 20px;
}

.process-num {
  display: block;
  font-family: var(--font-heading);
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--color-accent-dark);
  margin-bottom: 8px;
}
[data-theme="dark"] .process-num { color: var(--color-accent); }

.process-step p { color: var(--color-muted); margin-bottom: 0; }

/* ---------- 9. CTA BAND ---------- */
.cta-band {
  background-color: var(--color-ink);
  color: #fff;
  padding: 80px 0;
  text-align: center;
}

.cta-band h2 { color: #fff; }

.cta-inner {
  max-width: 620px;
}

.cta-inner p {
  color: rgba(255, 255, 255, 0.78);
  font-size: 1.05rem;
  margin-bottom: 32px;
}

/* ---------- 10. CONTACT ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 56px;
}

.contact-lead {
  color: var(--color-muted);
  margin-bottom: 32px;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.form-row {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-row label {
  font-weight: 600;
  font-size: 0.92rem;
}

.form-row input,
.form-row select,
.form-row textarea {
  font-family: inherit;
  font-size: 1rem;
  padding: 12px 14px;
  border-radius: 8px;
  border: 1px solid var(--color-border);
  background-color: var(--color-surface);
  color: var(--color-text);
  transition: border-color var(--transition-fast);
}

.form-row input:focus,
.form-row select:focus,
.form-row textarea:focus {
  border-color: var(--color-accent);
}

.form-row.field-invalid input,
.form-row.field-invalid select {
  border-color: #d64545;
}

.form-error {
  min-height: 1.1em;
  font-size: 0.82rem;
  color: #d64545;
}

.form-submit {
  align-self: flex-start;
  margin-top: 6px;
}

.form-status {
  min-height: 1.4em;
  font-size: 0.92rem;
  font-weight: 500;
}

.form-status.success { color: #2e8b57; }
.form-status.error { color: #d64545; }

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 22px;
  align-content: flex-start;
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
}

.contact-icon {
  width: 38px;
  height: 38px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background-color: color-mix(in srgb, var(--color-accent) 14%, transparent);
  color: var(--color-accent-dark);
}
[data-theme="dark"] .contact-icon { color: var(--color-accent); }

.contact-label {
  font-size: 0.82rem;
  color: var(--color-muted);
  margin-bottom: 2px;
}

.whatsapp-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background-color: #25d366;
  color: #0b2e18;
  font-weight: 600;
  padding: 12px 20px;
  border-radius: var(--radius-btn);
  width: fit-content;
  margin-top: 8px;
  transition: transform var(--transition-fast);
}
.whatsapp-btn:hover { transform: translateY(-1px); }

/* ---------- 11. FOOTER ---------- */
.site-footer {
  background-color: var(--color-ink);
  color: rgba(255, 255, 255, 0.82);
  padding: 64px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

.footer-brand p {
  margin-top: 14px;
  max-width: 32ch;
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.92rem;
}

.brand-name-footer { color: #fff; }

.footer-col h3 {
  color: #fff;
  font-size: 0.95rem;
  margin-bottom: 16px;
}

.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-col a {
  color: rgba(255, 255, 255, 0.68);
  font-size: 0.92rem;
  transition: color var(--transition-fast);
}
.footer-col a:hover { color: var(--color-accent); }

.footer-social {
  display: flex;
  gap: 12px;
  margin-top: 16px;
}

.footer-social a {
  width: 34px;
  height: 34px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background-color: rgba(255, 255, 255, 0.08);
  color: #fff;
}
.footer-social a:hover { background-color: var(--color-accent); color: #17140c; }

.footer-bottom {
  padding: 24px;
  text-align: center;
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.5);
}

/* ---------- 12. FLOATING BUTTONS ---------- */
.theme-toggle,
.back-to-top {
  position: fixed;
  right: 24px;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  border: 1px solid var(--color-border);
  background-color: var(--color-surface);
  color: var(--color-text);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-card);
  z-index: 400;
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.theme-toggle { bottom: 24px; }
.back-to-top {
  bottom: 82px;
  opacity: 0;
  pointer-events: none;
  transform: translateY(8px);
}
.back-to-top.visible {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

.theme-toggle:hover,
.back-to-top:hover { transform: translateY(-2px); }
.back-to-top.visible:hover { transform: translateY(-2px); }

.icon-moon { display: none; }
[data-theme="dark"] .icon-sun { display: none; }
[data-theme="dark"] .icon-moon { display: block; }

/* ---------- 13. ANIMATIONS ---------- */
/* A single, quiet reveal-on-scroll used consistently across sections */
[data-animate] {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 600ms ease, transform 600ms ease;
}

[data-animate].in-view {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- 14. RESPONSIVE ---------- */
@media (max-width: 960px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .process-list { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 880px) {
  .hero-inner { grid-template-columns: 1fr; }
  .hero-visual { order: -1; max-width: 420px; margin: 0 auto; }
  .about-grid { grid-template-columns: 1fr; }
  .about-visual { max-width: 380px; margin: 0 auto; }
  .contact-grid { grid-template-columns: 1fr; }
}

@media (max-width: 720px) {
  .nav-menu {
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    background-color: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    flex-direction: column;
    align-items: flex-start;
    padding: 20px 24px 28px;
    gap: 18px;
    transform: translateY(-12px);
    opacity: 0;
    pointer-events: none;
    transition: transform var(--transition-med), opacity var(--transition-med);
  }

  .nav-menu.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .nav-cta-wrap { margin-left: 0; }
  .nav-toggle { display: flex; }

  .nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }
  .nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(2) { opacity: 0; }
  .nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }

  .grid-3 { grid-template-columns: 1fr; }
  .grid-4 { grid-template-columns: 1fr; }
  .process-list { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .section { padding: 64px 0; }
  .hero { padding: 48px 0 64px; }
}

@media (max-width: 480px) {
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { width: 100%; }
  .hero-stats { gap: 20px; }
  .theme-toggle, .back-to-top { right: 16px; }
}

.about-photo {
  width: 100%;
  height: auto;
  aspect-ratio: 300 / 260;
  object-fit: cover;
  border-radius: var(--radius-card);
  border: 1px solid var(--color-border);
  box-shadow: 0 12px 32px -12px rgba(16, 35, 63, 0.25);
}