/* ==========================================================================
   Hifi Planet – Landingpage Styles
   ========================================================================== */

:root {
  --bg: #0a0d14;
  --bg-alt: #10141d;
  --surface: #161b26;
  --surface-border: #232a38;
  --text: #f4f6fb;
  --text-muted: #9aa4b7;
  --accent: #00e5ff;
  --accent-2: #a855f7;
  --accent-gradient: linear-gradient(135deg, var(--accent), var(--accent-2));
  --radius: 14px;
  --container: 1140px;
  --font-heading: "Poppins", sans-serif;
  --font-body: "Inter", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

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

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

p {
  margin: 0 0 1em;
}

a {
  color: var(--accent);
  text-decoration: none;
}

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

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

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

.accent {
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 28px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease, color 0.15s ease;
  white-space: nowrap;
}

.btn-primary {
  background: var(--accent-gradient);
  color: #04121a;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 30px -10px rgba(0, 229, 255, 0.5);
}

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

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

.btn-outline {
  background: transparent;
  color: var(--accent);
  border-color: var(--accent);
  width: 100%;
}

.btn-outline:hover {
  background: var(--accent);
  color: #04121a;
}

/* ==========================================================================
   Header
   ========================================================================== */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10, 13, 20, 0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--surface-border);
}

.header-inner {
  display: flex;
  align-items: center;
  gap: 24px;
  padding-top: 16px;
  padding-bottom: 16px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-heading);
  font-weight: 600;
  color: var(--text);
  letter-spacing: 0.03em;
  margin-right: auto;
}

.logo-text strong {
  color: var(--accent);
}

.logo-mark {
  display: inline-flex;
  align-items: flex-end;
  gap: 3px;
  height: 22px;
}

.logo-mark span {
  width: 4px;
  border-radius: 2px;
  background: var(--accent-gradient);
  animation: eq 1.2s ease-in-out infinite;
}

.logo-mark span:nth-child(1) { height: 60%; animation-delay: 0s; }
.logo-mark span:nth-child(2) { height: 100%; animation-delay: 0.2s; }
.logo-mark span:nth-child(3) { height: 40%; animation-delay: 0.4s; }

@keyframes eq {
  0%, 100% { transform: scaleY(1); }
  50% { transform: scaleY(0.4); }
}

.main-nav {
  display: flex;
  gap: 28px;
}

.main-nav a {
  color: var(--text-muted);
  font-weight: 500;
  font-size: 0.95rem;
}

.main-nav a:hover {
  color: var(--text);
}

.nav-cta {
  padding: 10px 22px;
}

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

.nav-toggle span {
  width: 24px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
}

/* ==========================================================================
   Hero
   ========================================================================== */

.hero {
  position: relative;
  padding: 120px 0 100px;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: -20% -10%;
  background:
    radial-gradient(circle at 20% 20%, rgba(0, 229, 255, 0.18), transparent 45%),
    radial-gradient(circle at 80% 30%, rgba(168, 85, 247, 0.18), transparent 45%);
  pointer-events: none;
}

.hero-inner {
  position: relative;
  max-width: 760px;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.15em;
  font-size: 0.8rem;
  color: var(--accent);
  font-weight: 600;
  margin-bottom: 16px;
}

.hero h1 {
  font-size: clamp(2.4rem, 6vw, 4rem);
  font-weight: 800;
}

.hero-sub {
  font-size: 1.1rem;
  color: var(--text-muted);
  max-width: 560px;
  margin-top: 20px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  margin-top: 32px;
  flex-wrap: wrap;
}

/* ==========================================================================
   Sections
   ========================================================================== */

.section {
  padding: 96px 0;
}

.section-alt {
  background: var(--bg-alt);
}

.section-title {
  text-align: center;
  font-size: clamp(1.8rem, 4vw, 2.4rem);
  font-weight: 700;
}

.section-sub {
  text-align: center;
  color: var(--text-muted);
  max-width: 620px;
  margin: 0 auto 56px;
}

.section-title-left,
.section-sub-left {
  text-align: left;
  margin-left: 0;
}

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

.feature-card {
  background: var(--surface);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius);
  padding: 32px 24px;
  text-align: center;
  transition: border-color 0.2s ease, transform 0.2s ease;
}

.feature-card:hover {
  border-color: var(--accent);
  transform: translateY(-4px);
}

.feature-icon {
  font-size: 2rem;
  margin-bottom: 16px;
}

.feature-card h3 {
  font-size: 1.1rem;
}

.feature-card p {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin: 0;
}

/* Package grid */
.package-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  align-items: stretch;
}

.package-card {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius);
  padding: 36px 28px;
  display: flex;
  flex-direction: column;
}

.package-featured {
  border-color: var(--accent);
  box-shadow: 0 0 0 1px var(--accent), 0 20px 40px -20px rgba(0, 229, 255, 0.35);
}

.package-badge {
  position: absolute;
  top: -14px;
  left: 28px;
  background: var(--accent-gradient);
  color: #04121a;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 4px 14px;
  border-radius: 999px;
  margin: 0;
}

.package-name {
  display: flex;
  flex-direction: column;
  font-size: 1.3rem;
}

.package-name span {
  font-family: var(--font-body);
  font-weight: 400;
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-top: 2px;
}

.package-price {
  font-size: 1rem;
  color: var(--text-muted);
  margin-bottom: 24px;
}

.package-price strong {
  font-size: 1.8rem;
  color: var(--text);
  font-family: var(--font-heading);
}

.package-features {
  flex: 1;
  margin-bottom: 28px;
}

.package-features li {
  padding-left: 26px;
  position: relative;
  margin-bottom: 12px;
  color: var(--text-muted);
  font-size: 0.95rem;
}

.package-features li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--accent);
  font-weight: 700;
}

.package-note {
  text-align: center;
  color: var(--text-muted);
  font-size: 0.85rem;
  margin-top: 32px;
  margin-bottom: 0;
}

/* Steps */
.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  counter-reset: step;
}

.step {
  text-align: center;
}

.step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--accent-gradient);
  color: #04121a;
  font-weight: 700;
  font-family: var(--font-heading);
  margin-bottom: 16px;
}

.step h3 {
  font-size: 1.05rem;
}

.step p {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin: 0;
}

/* ==========================================================================
   Kontakt
   ========================================================================== */

.kontakt-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 56px;
  align-items: start;
}

.info-list li {
  margin-bottom: 12px;
  color: var(--text-muted);
}

.info-list strong {
  color: var(--text);
}

.kontakt-form {
  background: var(--surface);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius);
  padding: 32px;
}

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

.form-row-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

label {
  display: block;
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 6px;
}

input[type="text"],
input[type="email"],
input[type="tel"],
select,
textarea {
  width: 100%;
  padding: 12px 14px;
  background: var(--bg);
  border: 1px solid var(--surface-border);
  border-radius: 8px;
  color: var(--text);
  font-family: var(--font-body);
  font-size: 0.95rem;
}

input:focus,
select:focus,
textarea:focus {
  outline: none;
  border-color: var(--accent);
}

textarea {
  resize: vertical;
}

.form-row-checkbox {
  display: flex;
  align-items: flex-start;
  gap: 10px;
}

.form-row-checkbox input {
  margin-top: 4px;
}

.form-row-checkbox label {
  margin-bottom: 0;
  font-size: 0.85rem;
}

.form-submit {
  width: 100%;
}

.form-status {
  padding: 12px 16px;
  border-radius: 8px;
  margin-bottom: 20px;
  font-size: 0.9rem;
}

.form-status.success {
  background: rgba(0, 229, 255, 0.12);
  border: 1px solid var(--accent);
  color: var(--text);
}

.form-status.error {
  background: rgba(255, 80, 80, 0.12);
  border: 1px solid #ff5050;
  color: var(--text);
}

.hp-field {
  position: absolute;
  left: -9999px;
  top: -9999px;
}

/* ==========================================================================
   Footer
   ========================================================================== */

.site-footer {
  border-top: 1px solid var(--surface-border);
  padding: 32px 0;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  color: var(--text-muted);
  font-size: 0.9rem;
}

.footer-nav {
  display: flex;
  gap: 20px;
}

.footer-nav a {
  color: var(--text-muted);
}

.footer-nav a:hover {
  color: var(--accent);
}

/* ==========================================================================
   Responsive
   ========================================================================== */

@media (max-width: 900px) {
  .feature-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .package-grid {
    grid-template-columns: 1fr;
    max-width: 420px;
    margin: 0 auto;
  }

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

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

@media (max-width: 720px) {
  .main-nav,
  .nav-cta {
    display: none;
  }

  .nav-toggle {
    display: flex;
  }

  .main-nav.open {
    display: flex;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--bg);
    border-bottom: 1px solid var(--surface-border);
    flex-direction: column;
    padding: 16px 24px 24px;
    gap: 16px;
  }

  .form-row-split {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 560px) {
  .feature-grid,
  .steps {
    grid-template-columns: 1fr;
  }

  .hero {
    padding: 96px 0 72px;
  }
}