/* ==========================================================
   Redinx – Shared Stylesheet
   Modern dark theme, tech-oriented design
   Accent: Red (#E63946) with dark neutrals
   ========================================================== */

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

:root {
  --color-bg:       #0a0a0f;
  --color-bg-alt:   #111118;
  --color-surface:  #16161f;
  --color-text:     #e8e8ed;
  --color-text-sub: #8888a0;
  --color-accent:   #E63946;
  --color-accent-h: #ff4d5a;
  --color-border:   rgba(255,255,255,.08);
  --color-white:    #ffffff;
  --radius:         16px;
  --radius-sm:      10px;
  --shadow:         0 2px 20px rgba(0,0,0,.3);
  --shadow-lg:      0 8px 40px rgba(0,0,0,.4);
  --glow:           0 0 30px rgba(230,57,70,.15);
  --transition:     .3s cubic-bezier(.4,0,.2,1);
  --container:      1120px;
  --font:           'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono:      'JetBrains Mono', 'Fira Code', 'Consolas', monospace;
}

html { scroll-behavior: smooth; scroll-padding-top: 80px; }

body {
  font-family: var(--font);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

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

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

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

/* --- Section Titles --- */
.section__title {
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -.02em;
  margin-bottom: .4em;
}

.section__subtitle {
  color: var(--color-text-sub);
  font-size: 1.1rem;
  margin-bottom: 2.5rem;
}

/* --- Buttons --- */
.btn {
  display: inline-block;
  font-weight: 600;
  font-size: .95rem;
  padding: 12px 28px;
  border-radius: var(--radius-sm);
  transition: all var(--transition);
  cursor: pointer;
  border: 2px solid transparent;
}

.btn--primary {
  background: var(--color-accent);
  color: var(--color-white);
  border-color: var(--color-accent);
}
.btn--primary:hover {
  background: var(--color-accent-h);
  border-color: var(--color-accent-h);
  color: var(--color-white);
  transform: translateY(-2px);
  box-shadow: 0 4px 20px rgba(230,57,70,.4);
}

.btn--outline {
  background: transparent;
  color: var(--color-text);
  border-color: var(--color-border);
}
.btn--outline:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
  transform: translateY(-2px);
  box-shadow: 0 4px 20px rgba(230,57,70,.15);
}

.btn--sm { padding: 8px 20px; font-size: .88rem; }
.btn--lg { padding: 16px 36px; font-size: 1.05rem; }

/* --- Header --- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(10,10,15,.8);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid transparent;
  transition: all var(--transition);
}

.header--scrolled {
  border-bottom-color: var(--color-border);
  box-shadow: 0 1px 30px rgba(0,0,0,.4);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}

.header__logo {
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--color-text);
  letter-spacing: -.03em;
}
.header__logo:hover { color: var(--color-accent); }

.header__links {
  display: flex;
  list-style: none;
  gap: 32px;
}

.header__links a {
  color: var(--color-text-sub);
  font-size: .92rem;
  font-weight: 500;
  position: relative;
}
.header__links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-accent);
  transition: width var(--transition);
}
.header__links a:hover { color: var(--color-text); }
.header__links a:hover::after { width: 100%; }

/* Mobile menu button */
.header__menu-btn {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.header__menu-btn span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: all var(--transition);
}
.header__menu-btn.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.header__menu-btn.open span:nth-child(2) { opacity: 0; }
.header__menu-btn.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* --- Hero --- */
.hero {
  padding: 160px 0 100px;
  text-align: center;
  position: relative;
  overflow: hidden;
  background:
    linear-gradient(rgba(255,255,255,.022) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.022) 1px, transparent 1px),
    radial-gradient(ellipse at 20% 0%, rgba(230,57,70,.12) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 100%, rgba(230,57,70,.07) 0%, transparent 50%),
    radial-gradient(ellipse at 50% 50%, rgba(22,22,31,.5) 0%, transparent 80%),
    var(--color-bg);
  background-size: 60px 60px, 60px 60px, auto, auto, auto, auto;
}

.hero__tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: .78rem;
  font-weight: 500;
  letter-spacing: .04em;
  color: var(--color-text-sub);
  margin-bottom: 20px;
  padding: 7px 16px;
  background: rgba(255,255,255,.03);
  border-radius: 6px;
  border: 1px solid var(--color-border);
}

.hero__tag-prompt {
  color: var(--color-accent);
  font-weight: 700;
  font-size: .85rem;
}

.hero__title {
  font-size: clamp(2.4rem, 6vw, 4rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -.03em;
  margin-bottom: 20px;
}

.highlight { color: var(--color-accent); }

.hero__subtitle {
  max-width: 560px;
  margin: 0 auto 36px;
  font-size: 1.15rem;
  color: var(--color-text-sub);
  line-height: 1.7;
}

.hero__actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

/* --- Portfolio --- */
.portfolio {
  padding: 100px 0;
  background: var(--color-bg-alt);
}

.portfolio .section__title,
.portfolio .section__subtitle {
  text-align: center;
}

.portfolio__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 28px;
}

/* --- Card --- */
.card {
  background: var(--color-surface);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  border: 1px solid var(--color-border);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}

.card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(230,57,70,.2);
}

.card--featured {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: 1fr 1fr;
}

.card__image { overflow: hidden; }
.card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .4s ease;
}
.card:hover .card__image img { transform: scale(1.03); }

.card__body { padding: 28px; display: flex; flex-direction: column; justify-content: center; }

.card__badge {
  display: inline-block;
  width: fit-content;
  font-size: .72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--color-accent);
  background: rgba(230,57,70,.12);
  padding: 4px 12px;
  border-radius: 100px;
  margin-bottom: 12px;
  border: 1px solid rgba(230,57,70,.2);
}

.card__title {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 10px;
}

.card__text {
  color: var(--color-text-sub);
  font-size: .95rem;
  margin-bottom: 20px;
  line-height: 1.65;
}

.card__actions { margin-top: auto; }

/* --- About --- */
.about {
  padding: 100px 0;
}

.about__inner {
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: 60px;
  align-items: center;
}

.about__image img {
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  border: 1px solid var(--color-border);
}

.about__content p {
  color: var(--color-text-sub);
  margin-bottom: 1em;
}

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

/* --- Contact --- */
.contact {
  padding: 100px 0;
  background: var(--color-bg-alt);
  text-align: center;
}

.contact .btn { margin-top: 8px; }

/* --- Footer --- */
.footer {
  padding: 48px 0;
  border-top: 1px solid var(--color-border);
  font-size: .88rem;
  color: var(--color-text-sub);
}

.footer__inner {
  display: grid;
  grid-template-columns: 1fr 1fr auto;
  gap: 40px;
  align-items: start;
}

.footer__logo {
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--color-text);
  margin-bottom: 6px;
}

.footer__impressum p { margin-bottom: 4px; }
.footer__impressum a { color: var(--color-text-sub); }
.footer__impressum a:hover { color: var(--color-accent); }

.footer__links {
  display: flex;
  flex-direction: column;
  gap: 8px;
  text-align: right;
}

.footer__links a {
  color: var(--color-text-sub);
  font-weight: 500;
}
.footer__links a:hover { color: var(--color-accent); }

/* --- Fade-in Animation --- */
.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .6s ease, transform .6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

.card__image--phone {
  background:
    radial-gradient(ellipse at 60% 20%, rgba(37,99,235,.18) 0%, transparent 55%),
    radial-gradient(ellipse at 30% 80%, rgba(230,57,70,.12) 0%, transparent 50%),
    radial-gradient(ellipse at 50% 50%, #0d1220 0%, #0a0a0f 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 32px 16px;
  min-height: 400px;
  overflow: hidden;
  position: relative;
}

.card__image--phone::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 55% 40%, rgba(37,99,235,.08) 0%, transparent 70%);
  pointer-events: none;
}

.card__image--phone img {
  max-height: 460px;
  width: auto;
  object-fit: contain;
  filter: drop-shadow(0 24px 48px rgba(0,0,0,.7)) drop-shadow(0 4px 16px rgba(37,99,235,.25));
  position: relative;
  z-index: 1;
}

/* --- TMS App Mockup Preview --- */
.tms-preview {
  background: #000;
  position: relative;
  overflow: hidden;
  padding: 0;
  min-height: 400px;
}

.tms-mock {
  padding: 20px 16px;
  height: 100%;
  min-height: 400px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  position: relative;
  overflow: hidden;
}

.tms-mock__head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
}

.tms-mock__title {
  font-size: 1.05rem;
  font-weight: 700;
  color: #fff;
}
.tms-mock__title span { color: #4a9eff; }

.tms-mock__count {
  font-size: .65rem;
  color: #4a9eff;
  font-weight: 500;
  margin-top: 3px;
}

.tms-mock__chips {
  display: flex;
  flex-direction: column;
  gap: 4px;
  align-items: flex-end;
}

.tms-mock__chip {
  font-size: .58rem;
  font-weight: 500;
  background: #1c1c2e;
  color: rgba(255,255,255,.7);
  border: 1px solid rgba(255,255,255,.1);
  border-radius: 20px;
  padding: 3px 9px;
  white-space: nowrap;
}

.tms-mock__tabs {
  display: flex;
  gap: 6px;
}

.tms-mock__tab {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: .62rem;
  font-weight: 600;
  color: rgba(255,255,255,.45);
  background: #1a1a2a;
  border-radius: 8px;
  padding: 5px 10px;
}

.tms-mock__tab--active {
  background: #1e3464;
  color: #fff;
}

.tms-mock__badge {
  background: #2563eb;
  color: #fff;
  font-size: .5rem;
  font-weight: 700;
  border-radius: 100px;
  padding: 1px 5px;
  line-height: 1.4;
}

.tms-mock__section-title {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: .68rem;
  font-weight: 600;
  color: rgba(255,255,255,.8);
}

.tms-mock__section-icon {
  width: 22px;
  height: 22px;
  background: #1e3464;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: .65rem;
  flex-shrink: 0;
}

.tms-mock__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.tms-mock__entry {
  border-radius: 10px;
  overflow: hidden;
  background: #1c1c1e;
  position: relative;
}

.tms-mock__photo {
  width: 100%;
  height: 90px;
}

.tms-mock__photo--1 {
  background: radial-gradient(ellipse at 60% 40%, #c07038 0%, #e8a070 45%, #d49070 100%);
}
.tms-mock__photo--2 {
  background: radial-gradient(circle at 50% 45%, #1e0f06 20%, #8a5030 38%, #c07850 70%, #d4a070 100%);
}
.tms-mock__photo--3 {
  background: radial-gradient(ellipse at 45% 55%, #b05838 0%, #de8860 45%, #c89880 100%);
}

.tms-mock__info {
  padding: 5px 7px 7px;
  background: linear-gradient(to top, rgba(0,0,0,.92) 0%, rgba(0,0,0,.55) 60%, transparent 100%);
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
}

.tms-mock__name {
  display: block;
  font-size: .58rem;
  font-weight: 600;
  color: #fff;
  line-height: 1.3;
}

.tms-mock__loc {
  display: block;
  font-size: .52rem;
  color: rgba(255,255,255,.45);
}

.tms-mock__fab {
  position: absolute;
  bottom: 14px;
  right: 14px;
  background: #2563eb;
  color: #fff;
  font-size: .65rem;
  font-weight: 700;
  border-radius: 20px;
  padding: 7px 15px;
  box-shadow: 0 4px 16px rgba(37,99,235,.5);
}

/* --- TMS (TrackMySkin) Page Specifics --- */
.tms-hero {
  padding: 160px 0 80px;
  background:
    radial-gradient(ellipse at 30% 0%, rgba(230,57,70,.1) 0%, transparent 50%),
    radial-gradient(ellipse at 70% 80%, rgba(230,57,70,.05) 0%, transparent 50%),
    var(--color-bg);
}

.tms-hero__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.tms-hero__content h1 {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 800;
  letter-spacing: -.03em;
  line-height: 1.15;
  margin-bottom: 20px;
}

.tms-hero__content p {
  color: var(--color-text-sub);
  font-size: 1.1rem;
  line-height: 1.7;
  margin-bottom: 28px;
}

.tms-hero__image img {
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  max-width: 360px;
  margin: 0 auto;
  border: 1px solid var(--color-border);
}

/* Features grid */
.features {
  padding: 100px 0;
  background: var(--color-bg-alt);
}

.features .section__title,
.features .section__subtitle {
  text-align: center;
}

.features__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 28px;
}

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

.feature:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(230,57,70,.2);
}

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

.feature__title {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.feature__text {
  color: var(--color-text-sub);
  font-size: .92rem;
  line-height: 1.6;
}

/* Privacy section */
.privacy {
  padding: 80px 0;
}

.privacy__inner {
  max-width: 720px;
  margin: 0 auto;
}

.privacy h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin: 24px 0 8px;
}

.privacy p, .privacy ul {
  color: var(--color-text-sub);
  margin-bottom: 12px;
  line-height: 1.7;
}

.privacy ul {
  padding-left: 20px;
}

.privacy ul li {
  margin-bottom: 6px;
}

/* --- Cursor Blink --- */
@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}

.cursor {
  display: inline-block;
  width: 3px;
  height: .8em;
  background: var(--color-accent);
  border-radius: 1px;
  vertical-align: middle;
  margin-left: 3px;
  animation: blink 1.1s step-end infinite;
}

/* --- Card Featured Glow Pulse --- */
@keyframes card-pulse {
  0%, 100% { border-color: rgba(230,57,70,.12); }
  50% { border-color: rgba(230,57,70,.38); box-shadow: 0 2px 20px rgba(0,0,0,.3), 0 0 60px rgba(230,57,70,.07); }
}

.card--featured { animation: card-pulse 5s ease-in-out infinite; }

/* --- Section Label (monospace code-style) --- */
.section__label {
  display: block;
  font-family: var(--font-mono);
  font-size: .72rem;
  font-weight: 500;
  color: var(--color-accent);
  opacity: 0.65;
  margin-bottom: 6px;
  letter-spacing: .05em;
}

/* --- Skill Tags --- */
.skill-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 24px;
}

.skill-tag {
  font-family: var(--font-mono);
  font-size: .72rem;
  font-weight: 500;
  color: var(--color-text-sub);
  background: rgba(255,255,255,.03);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  padding: 4px 10px;
  transition: all var(--transition);
  letter-spacing: .02em;
}

.skill-tag:hover {
  border-color: rgba(230,57,70,.3);
  color: var(--color-text);
  background: rgba(230,57,70,.05);
}

/* --- Card Header Row (badge + platforms) --- */
.card__header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

.card__header-row .card__badge { margin-bottom: 0; }

.card__platforms {
  display: flex;
  gap: 6px;
}

.card__platform {
  font-size: .68rem;
  font-weight: 600;
  color: var(--color-text-sub);
  background: rgba(255,255,255,.04);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  padding: 3px 8px;
  letter-spacing: .03em;
}

/* --- Card Tech Tags --- */
.card__tech {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 20px;
}

.card__tag {
  font-family: var(--font-mono);
  font-size: .68rem;
  font-weight: 500;
  color: var(--color-text-sub);
  background: rgba(255,255,255,.03);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  padding: 3px 9px;
}

/* --- Card Status --- */
.card__actions {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.card__status {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: .78rem;
  color: var(--color-text-sub);
}

.card__status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #f59e0b;
  box-shadow: 0 0 6px rgba(245,158,11,.6);
  animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; }
  50% { opacity: .4; }
}

/* --- Skill Groups --- */
.skill-groups {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px 24px;
  margin-top: 24px;
}

.skill-group__label {
  display: block;
  font-family: var(--font-mono);
  font-size: .65rem;
  font-weight: 600;
  color: var(--color-accent);
  opacity: .7;
  letter-spacing: .06em;
  text-transform: uppercase;
  margin-bottom: 6px;
}

.skill-group .skill-tags { margin-top: 0; }

/* --- Contact Avatar --- */
.contact__avatar {
  margin: 0 auto 20px;
  width: 80px;
  height: 80px;
}

.contact__avatar img {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  object-fit: cover;
  object-position: center 15%;
  border: 2px solid var(--color-border);
  display: block;
}

/* --- Contact Cards --- */
.contact__cards {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 8px;
}

.contact-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  padding: 28px 32px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  color: var(--color-text);
  text-decoration: none;
  min-width: 160px;
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
}

.contact-card:hover {
  transform: translateY(-4px);
  border-color: rgba(230,57,70,.3);
  box-shadow: 0 8px 32px rgba(0,0,0,.3), 0 0 0 1px rgba(230,57,70,.1);
  color: var(--color-text);
}

.contact-card__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background: rgba(255,255,255,.04);
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  color: var(--color-text-sub);
  transition: color var(--transition), background var(--transition);
}

.contact-card:hover .contact-card__icon {
  color: var(--color-accent);
  background: rgba(230,57,70,.08);
  border-color: rgba(230,57,70,.2);
}

.contact-card__label {
  font-size: .72rem;
  font-weight: 600;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--color-text-sub);
}

.contact-card__value {
  font-size: .88rem;
  font-weight: 500;
  color: var(--color-text);
}

/* --- Footer Social --- */
.footer__social {
  display: flex;
  align-items: center;
  gap: 12px;
  justify-content: center;
}

.footer__social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background: rgba(255,255,255,.04);
  border: 1px solid var(--color-border);
  color: var(--color-text-sub);
  transition: all var(--transition);
}

.footer__social-link:hover {
  color: var(--color-accent);
  background: rgba(230,57,70,.08);
  border-color: rgba(230,57,70,.2);
}

/* --- Responsive --- */
@media (max-width: 900px) {
  .card--featured { grid-template-columns: 1fr; }
  .about__inner { grid-template-columns: 1fr; text-align: center; }
  .about__image img { max-width: 240px; margin: 0 auto; }
  .skill-groups { grid-template-columns: 1fr 1fr; }
  .skill-group { text-align: left; }
  .footer__inner { grid-template-columns: 1fr; text-align: center; gap: 24px; }
  .footer__links { text-align: center; flex-direction: row; justify-content: center; }
  .tms-hero__inner { grid-template-columns: 1fr; text-align: center; }
  .tms-hero__image { order: -1; }
}

@media (max-width: 640px) {
  .header__menu-btn { display: flex; }
  .header__links {
    position: fixed;
    top: 68px;
    left: 0;
    right: 0;
    background: rgba(10,10,15,.95);
    backdrop-filter: blur(16px);
    flex-direction: column;
    align-items: center;
    gap: 0;
    padding: 0;
    max-height: 0;
    overflow: hidden;
    transition: max-height .35s ease, padding .35s ease;
    border-bottom: 1px solid var(--color-border);
  }
  .header__links.open {
    max-height: 360px;
    padding: 20px 0;
  }
  .header__links li { width: 100%; text-align: center; }
  .header__links a {
    display: block;
    padding: 12px 0;
    font-size: 1rem;
  }
  .hero { padding: 130px 0 70px; }
  .hero__title { font-size: 2rem; }
  .section__title { font-size: 1.6rem; }
  .portfolio, .about, .contact, .features, .privacy { padding: 70px 0; }
  .portfolio__grid, .features__grid { grid-template-columns: 1fr; }
}