/* ============================================================
   DRONESTEREO — Style
   Palette: Deep midnight blue + amber/gold accent + sky tones
   Fonts: Cabinet Grotesk (display) + Satoshi (body)
   ============================================================ */

/* ---- DESIGN TOKENS ---- */
:root {
  /* Type scale */
  --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
  --text-sm: clamp(0.875rem, 0.8rem + 0.35vw, 1rem);
  --text-base: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
  --text-lg: clamp(1.125rem, 1rem + 0.75vw, 1.5rem);
  --text-xl: clamp(1.5rem, 1.2rem + 1.25vw, 2.25rem);
  --text-2xl: clamp(2rem, 1.2rem + 2.5vw, 3.5rem);
  --text-hero: clamp(3rem, 1rem + 6vw, 7rem);

  /* Spacing */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;

  /* Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.625rem;
  --radius-lg: 1rem;
  --radius-xl: 1.5rem;
  --radius-full: 9999px;

  /* Transition */
  --transition: 200ms cubic-bezier(0.16, 1, 0.3, 1);

  /* Widths */
  --content-narrow: 720px;
  --content-default: 1080px;

  /* Fonts */
  --font-display: 'Cabinet Grotesk', 'Helvetica Neue', sans-serif;
  --font-body: 'Satoshi', 'Inter', sans-serif;

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.12);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.15);
  --shadow-lg: 0 12px 40px rgba(0,0,0,0.2);
}

/* ---- LIGHT MODE ---- */
:root, [data-theme="light"] {
  --color-bg: #f5f6f8;
  --color-surface: #ffffff;
  --color-surface-2: #f0f2f6;
  --color-surface-dark: #111827;
  --color-border: #dde1ea;
  --color-divider: #e8eaf0;
  --color-text: #0f1724;
  --color-text-muted: #6b7280;
  --color-text-light: #9ca3af;
  --color-text-inverse: #f9fafb;
  --color-accent: #d97706;
  --color-accent-hover: #b45309;
  --color-accent-soft: #fef3c7;
  --color-sky: #0c4a6e;
  --color-sky-light: #e0f2fe;
  --color-muted-bg: #eef0f5;
}

/* ---- DARK MODE ---- */
[data-theme="dark"] {
  --color-bg: #0b0f1a;
  --color-surface: #111827;
  --color-surface-2: #1a2235;
  --color-surface-dark: #060a12;
  --color-border: #1f2d42;
  --color-divider: #182030;
  --color-text: #e8edf5;
  --color-text-muted: #8896ad;
  --color-text-light: #4d5c74;
  --color-text-inverse: #0b0f1a;
  --color-accent: #f59e0b;
  --color-accent-hover: #d97706;
  --color-accent-soft: #2d1f00;
  --color-sky: #38bdf8;
  --color-sky-light: #0c2233;
  --color-muted-bg: #0f1826;
}

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

html {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  color: var(--color-text);
  background-color: var(--color-bg);
  line-height: 1.65;
  min-height: 100dvh;
  transition: background-color 0.3s, color 0.3s;
}

img, video { display: block; max-width: 100%; height: auto; }
h1,h2,h3,h4 { text-wrap: balance; line-height: 1.15; }
p, li { text-wrap: pretty; max-width: 68ch; }

a { color: inherit; text-decoration: none; transition: color var(--transition); }
button { cursor: pointer; background: none; border: none; font: inherit; color: inherit; }

::selection { background: color-mix(in oklch, var(--color-accent) 30%, transparent); }
:focus-visible { outline: 2px solid var(--color-accent); outline-offset: 3px; border-radius: var(--radius-sm); }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}

/* ---- NAV ---- */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: transparent;
  transition: background var(--transition), box-shadow var(--transition);
}
.nav--scrolled {
  background: color-mix(in oklch, var(--color-bg) 92%, transparent);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: var(--shadow-sm);
}
.nav-inner {
  max-width: var(--content-default);
  margin: 0 auto;
  padding: var(--space-4) var(--space-6);
  display: flex;
  align-items: center;
  gap: var(--space-6);
}
.logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-shrink: 0;
}
.logo-text {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 800;
  letter-spacing: -0.01em;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-6);
  margin-left: auto;
}
.nav-links a {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-muted);
  transition: color var(--transition);
}
.nav-links a:hover { color: var(--color-text); }
.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px; height: 36px;
  border-radius: var(--radius-full);
  color: var(--color-text-muted);
  transition: color var(--transition), background var(--transition);
  margin-left: var(--space-2);
}
.theme-toggle:hover { color: var(--color-text); background: var(--color-surface-2); }

.burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: var(--space-2);
  margin-left: var(--space-2);
}
.burger span {
  display: block; width: 22px; height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}
.burger.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.burger.active span:nth-child(2) { opacity: 0; }
.burger.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.mobile-menu {
  display: none;
  flex-direction: column;
  padding: var(--space-4) var(--space-6) var(--space-6);
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  gap: var(--space-2);
}
.mobile-menu.open { display: flex; }
.mobile-link {
  font-size: var(--text-base);
  font-weight: 500;
  padding: var(--space-3) 0;
  border-bottom: 1px solid var(--color-divider);
  color: var(--color-text-muted);
}
.mobile-link:last-child { border-bottom: none; }

/* ---- HERO ---- */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.hero-img {
  width: 100%; height: 100%;
  object-fit: cover;
  object-position: center 60%;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    rgba(5, 10, 22, 0.55) 0%,
    rgba(5, 10, 22, 0.4) 40%,
    rgba(5, 10, 22, 0.75) 100%
  );
}
.hero-content {
  position: relative;
  z-index: 1;
  max-width: var(--content-default);
  margin: 0 auto;
  padding: var(--space-24) var(--space-6) var(--space-20);
  color: #fff;
}
.hero-eyebrow {
  font-size: var(--text-sm);
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-5);
  max-width: none;
}
.hero-title {
  font-family: var(--font-display);
  font-size: var(--text-hero);
  font-weight: 800;
  line-height: 1.0;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-6);
  max-width: none;
}
.hero-title em {
  font-style: italic;
  font-weight: 300;
  color: var(--color-accent);
}
.hero-sub {
  font-size: var(--text-lg);
  font-weight: 300;
  color: rgba(255,255,255,0.82);
  margin-bottom: var(--space-10);
  max-width: 52ch;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
}
.hero-scroll {
  position: absolute;
  bottom: var(--space-8);
  left: 50%;
  transform: translateX(-50%);
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  color: rgba(255,255,255,0.5);
  font-size: var(--text-xs);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.scroll-dot {
  animation: scrollBounce 2s ease-in-out infinite;
}
@keyframes scrollBounce {
  0%,100% { transform: translateY(0); }
  50% { transform: translateY(6px); }
}

/* ---- BUTTONS ---- */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-4) var(--space-8);
  background: var(--color-accent);
  color: #fff;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--text-sm);
  border-radius: var(--radius-full);
  transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
  box-shadow: 0 4px 20px color-mix(in oklch, var(--color-accent) 40%, transparent);
}
.btn-primary:hover {
  background: var(--color-accent-hover);
  transform: translateY(-1px);
  box-shadow: 0 6px 28px color-mix(in oklch, var(--color-accent) 50%, transparent);
}
.btn-ghost {
  display: inline-flex;
  align-items: center;
  padding: var(--space-4) var(--space-8);
  border: 1.5px solid rgba(255,255,255,0.35);
  color: rgba(255,255,255,0.85);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--text-sm);
  border-radius: var(--radius-full);
  transition: border-color var(--transition), color var(--transition), background var(--transition);
}
.btn-ghost:hover { border-color: rgba(255,255,255,0.8); color: #fff; background: rgba(255,255,255,0.08); }

.btn-outline {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-3) var(--space-6);
  border: 1.5px solid var(--color-border);
  color: var(--color-text);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--text-sm);
  border-radius: var(--radius-full);
  transition: border-color var(--transition), background var(--transition);
  width: 100%;
}
.btn-outline:hover { border-color: var(--color-accent); background: var(--color-accent-soft); }

.btn-nav {
  padding: var(--space-2) var(--space-5);
  background: var(--color-accent);
  color: #fff;
  font-weight: 700;
  font-size: var(--text-sm);
  border-radius: var(--radius-full);
  transition: background var(--transition);
}
.btn-nav:hover { background: var(--color-accent-hover); color: #fff; }

.btn-large { padding: var(--space-5) var(--space-10); font-size: var(--text-base); }

.btn-whatsapp {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-4) var(--space-8);
  background: #25D366;
  color: #fff;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--text-sm);
  border-radius: var(--radius-full);
  transition: background var(--transition), transform var(--transition);
}
.btn-whatsapp:hover { background: #1ebe5a; transform: translateY(-1px); }

/* ---- LAYOUT ---- */
.section {
  padding: clamp(var(--space-16), 8vw, var(--space-24)) 0;
}
.section-dark {
  background: var(--color-surface-dark);
  color: var(--color-text-inverse);
}
[data-theme="light"] .section-dark { background: #111827; }
.section-muted { background: var(--color-muted-bg); }

.container {
  max-width: var(--content-default);
  margin: 0 auto;
  padding: 0 var(--space-6);
}
.container-narrow {
  max-width: var(--content-narrow);
  margin: 0 auto;
  padding: 0 var(--space-6);
}
.section-header {
  text-align: center;
  margin-bottom: clamp(var(--space-10), 5vw, var(--space-16));
}
.section-header h2 {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-4);
}
.section-sub {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  max-width: 54ch;
  margin: 0 auto;
}
.section-dark .section-sub { color: rgba(255,255,255,0.55); }

.label {
  display: inline-block;
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-3);
}
.label-light { color: var(--color-accent); }

/* ---- SPLIT LAYOUT (Over) ---- */
.container-split {
  max-width: var(--content-default);
  margin: 0 auto;
  padding: 0 var(--space-6);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(var(--space-10), 6vw, var(--space-20));
  align-items: center;
}
.split-text h2 {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-6);
}
.split-text p {
  color: var(--color-text-muted);
  margin-bottom: var(--space-5);
  line-height: 1.7;
}
.check-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  margin-top: var(--space-6);
}
.check-list li {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--text-sm);
  font-weight: 500;
  max-width: none;
}
.check {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 22px; height: 22px;
  background: var(--color-accent-soft);
  color: var(--color-accent);
  border-radius: var(--radius-full);
  font-size: 11px;
  font-weight: 800;
  flex-shrink: 0;
}
.split-img {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
}
.split-img img {
  width: 100%;
  height: 420px;
  object-fit: cover;
  object-position: center top;
  border-radius: var(--radius-xl);
}
.img-badge {
  position: absolute;
  bottom: var(--space-5);
  left: var(--space-5);
  background: var(--color-accent);
  color: #fff;
  padding: var(--space-3) var(--space-5);
  border-radius: var(--radius-lg);
  display: flex;
  flex-direction: column;
  font-size: var(--text-xs);
  box-shadow: var(--shadow-md);
}
.img-badge strong { font-size: var(--text-base); font-family: var(--font-display); }

/* ---- CARDS (Voor wie) ---- */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-5);
}
.card {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  transition: background var(--transition), transform var(--transition), border-color var(--transition);
}
.card:hover {
  background: rgba(255,255,255,0.08);
  border-color: rgba(249,158,11,0.3);
  transform: translateY(-3px);
}
.card-icon {
  width: 52px; height: 52px;
  background: rgba(249,158,11,0.12);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-accent);
  margin-bottom: var(--space-5);
}
.card h3 {
  font-family: var(--font-display);
  font-size: var(--text-base);
  font-weight: 700;
  margin-bottom: var(--space-3);
  color: #fff;
}
.card p {
  font-size: var(--text-sm);
  color: rgba(255,255,255,0.55);
  line-height: 1.65;
}

/* ---- PAKKETTEN ---- */
.pakketten-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
  align-items: start;
}
.pakket {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  position: relative;
  transition: box-shadow var(--transition), transform var(--transition);
}
.pakket:hover { box-shadow: var(--shadow-lg); transform: translateY(-3px); }
.pakket-featured {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 2px color-mix(in oklch, var(--color-accent) 25%, transparent);
  transform: translateY(-4px);
}
.pakket-featured:hover { transform: translateY(-7px); }
.pakket-badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-accent);
  color: #fff;
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: var(--space-1) var(--space-4);
  border-radius: var(--radius-full);
}
.pakket-top {
  margin-bottom: var(--space-6);
  padding-bottom: var(--space-6);
  border-bottom: 1px solid var(--color-divider);
}
.pakket-naam {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 800;
  margin-bottom: var(--space-2);
  max-width: none;
}
.pakket-prijs {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 800;
  color: var(--color-accent);
  max-width: none;
}
.pakket-sub {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  margin-top: var(--space-1);
  max-width: none;
}
.pakket-lijst {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  margin-bottom: var(--space-6);
}
.pakket-lijst li {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  padding-left: var(--space-5);
  position: relative;
  max-width: none;
}
.pakket-lijst li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--color-accent);
  font-weight: 700;
}
.pakket-note {
  font-size: var(--text-xs);
  color: var(--color-text-light);
  font-style: italic;
  margin-bottom: var(--space-5);
  max-width: none;
}
.pakketten-footer {
  text-align: center;
  margin-top: var(--space-10);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

/* ---- WERKWIJZE ---- */
.steps {
  display: flex;
  align-items: flex-start;
  gap: 0;
}
.step {
  flex: 1;
  padding: var(--space-8);
  text-align: center;
}
.step-num {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 800;
  color: var(--color-accent);
  opacity: 0.5;
  line-height: 1;
  margin-bottom: var(--space-4);
}
.step h3 {
  font-family: var(--font-display);
  font-size: var(--text-base);
  font-weight: 700;
  margin-bottom: var(--space-3);
}
.step p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin: 0 auto;
}
.step-divider {
  width: 1px;
  min-height: 120px;
  background: var(--color-divider);
  align-self: center;
  flex-shrink: 0;
}

/* ---- CONTACT ---- */
.contact-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-10);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-10);
  align-items: center;
  box-shadow: var(--shadow-md);
}
.contact-info {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}
.contact-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-4);
  color: var(--color-accent);
}
.contact-item div {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}
.contact-label {
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}
.contact-item a, .contact-item span:not(.contact-label) {
  font-size: var(--text-base);
  font-weight: 500;
  color: var(--color-text);
  max-width: none;
}
.contact-item a:hover { color: var(--color-accent); }
.contact-item svg { flex-shrink: 0; margin-top: 3px; }

.contact-cta {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  align-items: flex-start;
}
.contact-cta p {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  line-height: 1.65;
}

/* ---- FOOTER ---- */
.footer {
  background: var(--color-surface-dark);
  color: rgba(255,255,255,0.55);
  padding: var(--space-12) 0;
  border-top: 1px solid rgba(255,255,255,0.06);
}
[data-theme="light"] .footer { background: #0f1724; }
.footer-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-6);
  justify-content: space-between;
}
.footer-brand {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  color: rgba(255,255,255,0.8);
}
.footer-brand strong {
  display: block;
  font-family: var(--font-display);
  font-size: var(--text-base);
  font-weight: 800;
}
.footer-brand p {
  font-size: var(--text-xs);
  color: rgba(255,255,255,0.4);
  max-width: none;
}
.footer-meta {
  text-align: center;
}
.footer-meta p {
  font-size: var(--text-xs);
  line-height: 1.8;
  max-width: none;
}
.footer-copy {
  font-size: var(--text-xs);
  max-width: none;
}

/* ---- SCROLL ANIMATION ---- */
.fade-up {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.55s cubic-bezier(0.16, 1, 0.3, 1), transform 0.55s cubic-bezier(0.16, 1, 0.3, 1);
}
.fade-up.visible { opacity: 1; transform: translateY(0); }

/* ---- RESPONSIVE ---- */
@media (max-width: 900px) {
  .container-split {
    grid-template-columns: 1fr;
  }
  .split-img { order: -1; }
  .split-img img { height: 300px; }

  .cards-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .pakketten-grid {
    grid-template-columns: 1fr;
  }
  .pakket-featured { transform: none; }
  .pakket-featured:hover { transform: translateY(-3px); }

  .steps {
    flex-direction: column;
  }
  .step-divider {
    width: 60px; min-height: 1px;
    align-self: center;
  }

  .contact-card {
    grid-template-columns: 1fr;
  }

  .footer-inner {
    flex-direction: column;
    text-align: center;
  }
  .footer-brand { justify-content: center; }
}

@media (max-width: 640px) {
  .nav-links { display: none; }
  .theme-toggle { display: none; }
  .burger { display: flex; margin-left: auto; }

  .hero-title { letter-spacing: -0.01em; }
  .hero-actions { flex-direction: column; }
  .hero-actions a { text-align: center; justify-content: center; }

  .cards-grid { grid-template-columns: 1fr; }

  .contact-cta a { width: 100%; }
}