/* ─── TOKENS ─────────────────────────────────────────────── */
:root {
  --c-dark:    #2D3E4F;
  --c-blue:    #77C0F1;
  --c-salmon:  #FF6A68;

  /* light mode */
  --bg:        #F8F8F6;
  --bg-alt:    #EFEFED;
  --text:      #1A1A1A;
  --text-mute: #6B7280;
  --border:    #E0E0DC;
  --nav-bg:    rgba(248, 248, 246, 0.9);
}

[data-theme="dark"] {
  --bg:        #1C2530;
  --bg-alt:    #243040;
  --text:      #F0F0EE;
  --text-mute: #9CA3AF;
  --border:    #2D3E4F;
  --nav-bg:    rgba(28, 37, 48, 0.9);
}

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

html {
  font-size: 16px;
}

body {
  font-family: "Plus Jakarta Sans", -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  transition: background 0.3s, color 0.3s;
}

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

/* ─── NAV ────────────────────────────────────────────────── */
header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: var(--nav-bg);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
  will-change: transform, opacity;
  transform: translate3d(0, 0, 0);
  opacity: 1;
  /* Show: strong ease-out with short delay */
  transition:
    transform 0.72s cubic-bezier(0.22, 1, 0.36, 1) 0.12s,
    opacity   0.72s cubic-bezier(0.22, 1, 0.36, 1) 0.12s,
    background 0.3s,
    border-color 0.3s;
}

header.hidden {
  transform: translate3d(0, -100%, 0);
  opacity: 0;
  /* Hide: quick ease-in, no delay */
  transition:
    transform 0.35s cubic-bezier(0.4, 0, 1, 1),
    opacity   0.28s cubic-bezier(0.4, 0, 1, 1),
    background 0.3s,
    border-color 0.3s;
}

nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 900px;
  margin: 0 auto;
  padding: 0 2rem;
  height: 60px;
}

.nav-logo {
  display: flex;
  align-items: center;
}

.nav-logo img {
  height: 36px;
  width: 36px;
  border-radius: 6px;
  object-fit: cover;
}

.nav-links {
  display: flex;
  gap: 2rem;
}

.nav-links a {
  font-size: 0.85rem;
  color: var(--text-mute);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  transition: color 0.2s;
}

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

.nav-controls {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.lang-toggle,
.theme-toggle {
  background: none;
  border: 1px solid var(--border);
  color: var(--text-mute);
  border-radius: 4px;
  padding: 0.25rem 0.5rem;
  font-size: 0.8rem;
  cursor: pointer;
  transition: color 0.2s, border-color 0.2s;
}

.lang-toggle:hover,
.theme-toggle:hover {
  color: var(--text);
  border-color: var(--text-mute);
}

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

/* Burger */
.burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.burger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: background 0.2s;
}

/* Mobile menu */
.mobile-menu {
  display: none;
  flex-direction: column;
  background: var(--nav-bg);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  padding: 1rem 2rem;
  gap: 1rem;
}

.mobile-menu a {
  font-size: 0.9rem;
  color: var(--text-mute);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  transition: color 0.2s;
}

.mobile-menu a:hover {
  color: var(--text);
}

.mobile-menu.open { display: flex; }

/* ─── SECTIONS ───────────────────────────────────────────── */
section {
  padding: 6rem 2rem;
}

section.alt {
  background: var(--bg-alt);
  transition: background 0.3s;
}

.section-inner {
  max-width: 900px;
  margin: 0 auto;
}

.section-label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--c-salmon);
  margin-bottom: 1rem;
}

h2 {
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  font-weight: 600;
  line-height: 1.2;
  margin-bottom: 2.5rem;
  color: var(--text);
}



/* ─── HERO ───────────────────────────────────────────────── */
.hero {
  min-height: 100vh;
  position: relative;
  display: flex;
  align-items: flex-end;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background-image: url('Niki.jpg');
  background-size: cover;
  background-position: center top;
  z-index: 0;
}

.hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.72) 0%, rgba(0,0,0,0.15) 60%, rgba(0,0,0,0.05) 100%);
}

.hero-content {
  position: relative;
  z-index: 1;
  width: 100%;
  padding: 4rem 2rem 4rem 4rem;
}

.hero-label {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: rgba(255,255,255,0.7);
  margin-bottom: 1.25rem;
}

.hero h1 {
  font-size: clamp(3.5rem, 10vw, 7rem);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.02em;
  color: #fff;
  margin-bottom: 2.5rem;
}

.cta {
  display: inline-block;
  padding: 0.75rem 1.75rem;
  background: var(--c-salmon);
  color: #fff;
  font-size: 0.9rem;
  font-weight: 600;
  border-radius: 4px;
  letter-spacing: 0.03em;
  transition: opacity 0.2s, transform 0.2s;
  align-self: flex-start;
  border: none;
  cursor: pointer;
  font-family: inherit;
}

.cta:hover {
  opacity: 0.88;
  transform: translateY(-1px);
}

/* ─── CARDS ──────────────────────────────────────────────── */
.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.card {
  padding: 1.75rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  transition: border-color 0.2s, transform 0.2s;
}

.card:hover {
  border-color: var(--c-blue);
  transform: translateY(-2px);
}

.card h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
  color: var(--text);
}

.card p {
  font-size: 0.9rem;
  color: var(--text-mute);
  line-height: 1.65;
}

/* ─── EXPERIENCE ─────────────────────────────────────────── */
.experience-grid {
  display: flex;
  flex-direction: column;
  gap: 0;
  border-left: 2px solid var(--border);
}

.exp-item {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 1.5rem;
  padding: 1.5rem 0 1.5rem 2rem;
  position: relative;
}

.exp-item::before {
  content: '';
  position: absolute;
  left: -5px;
  top: 2rem;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--c-blue);
}

.exp-year {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--c-blue);
  padding-top: 0.1rem;
}

.exp-item p {
  font-size: 0.95rem;
  color: var(--text-mute);
  line-height: 1.65;
}

/* ─── CONVICTION ─────────────────────────────────────────── */
.conviction-inner {
  max-width: 700px;
}

blockquote {
  font-size: clamp(1.25rem, 2.5vw, 1.75rem);
  font-weight: 500;
  line-height: 1.45;
  color: var(--text);
  border-left: 3px solid var(--c-blue);
  padding-left: 1.5rem;
  margin-bottom: 1.5rem;
}

.conviction-sub {
  font-size: 0.95rem;
  color: var(--text-mute);
  line-height: 1.7;
  padding-left: calc(1.5rem + 3px);
}

/* ─── ABOUT ──────────────────────────────────────────────── */
.about-inner p {
  font-size: 1.05rem;
  color: var(--text-mute);
  line-height: 1.75;
  max-width: 640px;
}

/* ─── CONTACT ────────────────────────────────────────────── */
.contact-inner h2 {
  font-size: clamp(2rem, 5vw, 3.5rem);
  margin-bottom: 3rem;
}

.contact-blocks {
  display: flex;
  gap: 4rem;
  flex-wrap: wrap;
  margin-bottom: 3.5rem;
}

.contact-block {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.contact-block--form {
  margin-bottom: 1rem;
}

.contact-block-label {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-mute);
}

.contact-block-label::before {
  content: '→ ';
  color: var(--c-blue);
}

.contact-block a {
  font-size: 1.1rem;
  color: var(--c-blue);
  transition: color 0.2s;
  display: inline-block;
}

.contact-block a:hover {
  color: var(--c-salmon);
}

.contact-block #tel-link {
  color: var(--c-salmon);
}

.contact-block #tel-link:hover {
  color: var(--c-blue);
}

.linkedin-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  border-bottom: none !important;
}

.linkedin-link img {
  width: 28px;
  height: 28px;
  object-fit: contain;
}

[data-theme="dark"] .linkedin-link img {
  filter: invert(1);
}

/* ─── CONTACT FORM ───────────────────────────────────────── */
.contact-form {
  margin-top: 0;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  max-width: 520px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.form-group label {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-mute);
}

.form-group input,
.form-group textarea {
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 0.65rem 0.9rem;
  font-family: inherit;
  font-size: 0.95rem;
  color: var(--text);
  transition: border-color 0.2s;
  resize: none;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--c-blue);
}

.required-mark {
  color: var(--c-salmon);
  margin-left: 0.2rem;
}

.field-error {
  display: none;
  font-size: 0.8rem;
  color: var(--c-salmon);
  margin-top: 0.25rem;
}

.form-group.has-error input,
.form-group.has-error textarea {
  border-color: var(--c-salmon);
}

.form-group.has-error .field-error {
  display: block;
}

.hidden {
  display: none;
}

/* ─── FOOTER ─────────────────────────────────────────────── */
footer {
  border-top: 1px solid var(--border);
  transition: border-color 0.3s;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 900px;
  margin: 0 auto;
  padding: 2rem;
  font-size: 0.8rem;
  color: var(--text-mute);
}

.footer-links {
  display: flex;
  gap: 1.5rem;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.footer-logo img {
  width: 28px;
  height: 28px;
  border-radius: 4px;
}

footer a:hover { color: var(--text); }

/* ─── RESPONSIVE ─────────────────────────────────────────── */
@media (max-width: 640px) {
  .cards {
    grid-template-columns: 1fr;
  }
}

@media (min-width: 641px) and (max-width: 768px) {
  .cards {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .nav-links { display: none; }

  .burger { display: flex; }

  section { padding: 4rem 1.25rem; }

  .hero-content {
    padding: 3rem 1.25rem;
  }

  .exp-item {
    grid-template-columns: 60px 1fr;
    gap: 1rem;
  }

  .footer-inner {
    flex-direction: column;
    gap: 0.5rem;
    text-align: center;
  }

  .contact-blocks {
    gap: 2rem;
  }
}

@media (max-width: 480px) {
  nav { padding: 0 1.25rem; }

  .hero h1 { font-size: 3rem; }

  .legal-block p,
  .legal-block li { word-break: break-word; }
}

/* ─── THANK YOU PAGE ─────────────────────────────────────── */
.thankyou-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 8rem 2rem;
}

.thankyou-inner {
  max-width: 900px;
  margin: 0 auto;
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.thankyou-inner h1 {
  font-size: clamp(3rem, 8vw, 6rem);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--text);
}

.thankyou-inner p {
  font-size: 1.1rem;
  color: var(--text-mute);
  max-width: 480px;
  line-height: 1.7;
}

/* ─── LEGAL PAGE ─────────────────────────────────────────── */
.legal-page {
  padding: 8rem 2rem 6rem;
}

.legal-page h1 {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 700;
  margin-bottom: 3rem;
  color: var(--text);
}

.legal-block {
  margin-bottom: 2.5rem;
  padding-bottom: 2.5rem;
  border-bottom: 1px solid var(--border);
}

.legal-block:last-of-type {
  border-bottom: none;
}

.legal-block h2 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
  color: var(--text);
}

.legal-block p {
  font-size: 0.9rem;
  color: var(--text-mute);
  line-height: 1.75;
  margin-bottom: 0.75rem;
}

.legal-block p:last-child { margin-bottom: 0; }

.legal-block ul {
  padding-left: 1.25rem;
  margin-bottom: 0.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.legal-block li {
  font-size: 0.9rem;
  color: var(--text-mute);
  line-height: 1.75;
}

.legal-block li::marker {
  color: var(--c-salmon);
}

.legal-block a {
  color: var(--c-blue);
  transition: color 0.2s;
}

.legal-block a:hover { color: var(--c-salmon); }

.back-link {
  display: inline-block;
  margin-top: 1rem;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-mute);
  letter-spacing: 0.03em;
  transition: color 0.2s;
}

.back-link:hover,
.back-link:focus { color: var(--text); }