:root {
  /* Light (day) tema varsayılan */
  --bg: #f4f5fb;
  --bg-elevated: #ffffff;
  --bg-soft: #eef1fb;
  --accent: #2563eb;
  --accent-soft: rgba(37, 99, 235, 0.12);
  --accent-strong: #1d4ed8;
  --text: #0f172a;
  --text-soft: #6b7280;
  --border-subtle: rgba(148, 163, 184, 0.35);
  --radius-lg: 18px;
  --radius-md: 12px;
  --radius-pill: 999px;
  --shadow-soft: 0 18px 45px rgba(15, 23, 42, 0.12);
}

body.theme-dark {
  /* Dark (night) tema değişkenleri */
  --bg: #050816;
  --bg-elevated: #0b1020;
  --bg-soft: #070b15;
  --accent: #f97316;
  --accent-soft: rgba(249, 115, 22, 0.16);
  --accent-strong: #fb923c;
  --text: #e5e7eb;
  --text-soft: #9ca3af;
  --border-subtle: rgba(148, 163, 184, 0.45);
  --shadow-soft: 0 22px 60px rgba(0, 0, 0, 0.9);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  scroll-behavior: smooth;
}

body {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "SF Pro Text", sans-serif;
  background:
    radial-gradient(circle at top left, rgba(191, 219, 254, 0.45), transparent 55%),
    radial-gradient(circle at bottom right, rgba(226, 232, 240, 0.9), transparent 55%),
    var(--bg);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
}

body.theme-dark {
  background:
    radial-gradient(circle at top left, rgba(248, 113, 22, 0.18), transparent 55%),
    radial-gradient(circle at bottom right, rgba(56, 189, 248, 0.12), transparent 55%),
    var(--bg);
}

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

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

.container {
  width: min(1120px, 100% - 32px);
  margin-inline: auto;
}

.section {
  padding: 80px 0;
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.section.in-view {
  opacity: 1;
  transform: translateY(0);
}

.section-header {
  text-align: left;
  margin-bottom: 40px;
}

.section-header h2 {
  font-size: 1.9rem;
  letter-spacing: 0.02em;
  margin: 0 0 8px;
}

.section-header p {
  margin: 0;
  color: var(--text-soft);
  max-width: 560px;
}

/* HEADER */
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  backdrop-filter: blur(16px);
  background: linear-gradient(to bottom, rgba(255, 255, 255, 0.96), rgba(248, 250, 252, 0.92));
  border-bottom: 1px solid rgba(148, 163, 184, 0.35);
}

body.theme-dark .site-header {
  background: linear-gradient(to bottom, rgba(15, 23, 42, 0.95), rgba(15, 23, 42, 0.9));
  border-bottom-color: rgba(30, 64, 175, 0.7);
}

.header-inner {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 8px;
  padding: 14px 0;
}

.header-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

/* INTRO GATEWAY */
.intro-gateway {
  position: fixed;
  inset: 0;
  z-index: 60;
  display: flex;
  align-items: center;
  justify-content: center;
  background:
    radial-gradient(circle at top, rgba(226, 232, 240, 0.96), rgba(248, 250, 252, 0.98));
  backdrop-filter: blur(18px);
  transition: opacity 0.3s ease, visibility 0.3s ease;
  overflow-y: auto;
}

body.theme-dark .intro-gateway {
  background:
    radial-gradient(circle at top, rgba(15, 23, 42, 0.92), rgba(15, 23, 42, 0.98));
}

.intro-gateway--hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.intro-gateway-inner {
  width: min(720px, 100% - 40px);
  text-align: center;
}

.intro-title {
  margin: 0 0 24px;
  font-size: 1.4rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #0f172a;
}

body.theme-dark .intro-title {
  color: #e5e7eb;
}

.intro-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.intro-card {
  border: 1px solid rgba(148, 163, 184, 0.5);
  border-radius: 18px;
  background: radial-gradient(circle at top left, rgba(191, 219, 254, 0.95), #ffffff);
  padding: 20px 16px;
  color: #0f172a;
  font-size: 1.1rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.7);
  transition: transform 0.14s ease, box-shadow 0.14s ease, border-color 0.14s ease;
  position: relative;
  aspect-ratio: 1 / 1;
  overflow: hidden;
}

body.theme-dark .intro-card {
  background: radial-gradient(circle at top left, rgba(30, 64, 175, 0.85), rgba(15, 23, 42, 0.98));
  color: #e5e7eb;
}

.intro-card:hover {
  transform: translateY(-4px);
  border-color: var(--accent-strong);
  box-shadow: 0 30px 80px rgba(15, 23, 42, 0.9);
}

.intro-label {
  display: inline-block;
  position: relative;
  z-index: 1;
}

.intro-card::before {
  content: "🧩";
  position: absolute;
  inset: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3.5rem;
  opacity: 0.08;
  filter: blur(0.5px);
}

.intro-card:nth-child(2)::before {
  content: "📄";
}

.intro-card:nth-child(3)::before {
  content: "🛠️";
}

.intro-card:nth-child(4)::before {
  content: "✉️";
}

body.intro-open {
  /* Artık body scroll'unu kilitlemiyoruz; mobilde dikey kaydırma lazım */
}

@media (max-width: 720px) {
  .intro-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
  }

  .intro-gateway-inner {
    padding: 20px 0;
  }

  .intro-card {
    aspect-ratio: 4 / 3;
    padding: 16px 12px;
  }
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

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

.logo-mark {
  width: 32px;
  height: 32px;
  border-radius: 30% 70% 65% 35%;
  background: radial-gradient(circle at 20% 20%, #4f46e5, #60a5fa);
  display: grid;
  place-items: center;
  font-size: 0.9rem;
  font-weight: 700;
  box-shadow: 0 12px 32px rgba(37, 99, 235, 0.45);
}

.logo-text {
  font-size: 0.95rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-soft);
}

.main-nav {
  display: flex;
  gap: 18px;
  font-size: 0.9rem;
}

.main-nav a {
  padding: 6px 10px;
  border-radius: 999px;
  color: var(--text-soft);
  transition: background 0.18s ease, color 0.18s ease, transform 0.08s ease;
}

.main-nav a:hover {
  background: rgba(219, 234, 254, 0.9);
  color: var(--accent-strong);
  transform: translateY(-1px);
}

body.theme-dark .main-nav a:hover {
  background: rgba(15, 23, 42, 0.9);
}

.lang-toggle {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  background: rgba(15, 23, 42, 0.02);
  padding: 2px;
  border: 1px solid rgba(148, 163, 184, 0.5);
}

.lang-toggle-btn {
  border: none;
  background: transparent;
  padding: 2px 7px;
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  border-radius: 999px;
  cursor: pointer;
  color: var(--text-soft);
  transition: background 0.18s ease, color 0.18s ease;
}

.lang-toggle-btn.is-active {
  background: rgba(15, 23, 42, 0.9);
  color: #f9fafb;
}

body.theme-dark .lang-toggle {
  background: rgba(15, 23, 42, 0.85);
  border-color: rgba(37, 99, 235, 0.7);
}

body.theme-dark .lang-toggle-btn.is-active {
  background: rgba(15, 23, 42, 1);
}

.theme-toggle {
  width: 34px;
  height: 34px;
  border-radius: 999px;
  border: 1px solid rgba(148, 163, 184, 0.6);
  background: rgba(248, 250, 252, 0.9);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  padding: 0;
  color: var(--text-soft);
  transition: background 0.18s ease, transform 0.08s ease, box-shadow 0.08s ease,
    border-color 0.18s ease;
}

.theme-toggle:hover {
  transform: translateY(-1px);
  box-shadow: 0 10px 20px rgba(148, 163, 184, 0.4);
  border-color: var(--accent-strong);
}

body.theme-dark .theme-toggle {
  background: rgba(15, 23, 42, 0.95);
  border-color: rgba(37, 99, 235, 0.8);
}

.theme-toggle-icon {
  font-size: 1.1rem;
}

/* HERO */
.hero {
  padding-top: 72px;
  background:
    radial-gradient(circle at top left, #ffffff 0, #e0ecff 40%, #eef2ff 80%);
}

body.theme-dark .hero {
  background:
    radial-gradient(circle at 10% 0%, rgba(248, 113, 22, 0.18), transparent 55%),
    radial-gradient(circle at 90% 100%, rgba(59, 130, 246, 0.16), transparent 60%),
    linear-gradient(135deg, #020617 0%, #020617 60%, #020617 100%);
}

.hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(0, 1.1fr);
  gap: 40px;
  align-items: center;
}

.hero-text .eyebrow {
  font-size: 0.85rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent-strong);
  margin: 0 0 12px;
}

.hero h1 {
  font-size: clamp(2.2rem, 3vw, 2.8rem);
  line-height: 1.1;
  margin: 0 0 16px;
}

.hero-subtitle {
  margin: 0 0 24px;
  color: var(--text-soft);
  max-width: 520px;
}

.badge-row {
  margin: 4px 0 14px;
}

.badge-itu {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 5px 11px;
  border-radius: 999px;
  background: linear-gradient(135deg, #f97316, #ea580c);
  color: #f9fafb;
  box-shadow: 0 12px 30px rgba(248, 113, 22, 0.5);
}

.badge-itu::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: #fbbf24;
  box-shadow: 0 0 0 4px rgba(251, 191, 36, 0.35);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 18px;
  border-radius: var(--radius-pill);
  font-size: 0.9rem;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background 0.18s ease, color 0.18s ease, border-color 0.18s ease,
    transform 0.08s ease, box-shadow 0.08s ease;
}

.btn.primary {
  background: linear-gradient(135deg, #2563eb, #4f46e5);
  color: white;
  box-shadow: 0 14px 30px rgba(37, 99, 235, 0.45);
}

.btn.primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 18px 42px rgba(37, 99, 235, 0.55);
}

.btn.ghost {
  background: rgba(15, 23, 42, 0.9);
  border-color: rgba(148, 163, 184, 0.5);
  color: var(--text-soft);
}

.btn.ghost:hover {
  background: rgba(15, 23, 42, 1);
  border-color: var(--accent-strong);
  color: var(--accent-strong);
}

.btn.full-width {
  width: 100%;
}

.hero-visual {
  display: flex;
  justify-content: flex-end;
}

.hero-card-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.hero-card {
  background: radial-gradient(circle at top left, rgba(191, 219, 254, 0.8), #ffffff);
  border-radius: var(--radius-lg);
  padding: 16px 14px;
  border: 1px solid rgba(148, 163, 184, 0.5);
  box-shadow: 0 18px 45px rgba(148, 163, 184, 0.45);
  transform: translateY(0);
  transition: transform 0.18s ease, box-shadow 0.18s ease;
}

.hero-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 22px 55px rgba(148, 163, 184, 0.55);
}

.hero-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 999px;
  background: rgba(37, 99, 235, 0.08);
  margin-bottom: 10px;
  font-size: 1.1rem;
}

.hero-card h3 {
  margin: 0 0 4px;
  font-size: 0.95rem;
}

.hero-card p {
  margin: 0;
  font-size: 0.8rem;
  color: var(--text-soft);
}

/* SKILLS */
.skills {
  background: radial-gradient(circle at top right, #eef2ff 0, #e5e7eb 45%, #e5e7eb 100%);
}

body.theme-dark .skills {
  background:
    radial-gradient(circle at top right, rgba(30, 64, 175, 0.24), transparent 55%),
    linear-gradient(180deg, #020617 0%, #020617 100%);
}

.skills-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(0, 1.3fr);
  grid-auto-rows: 1fr;
  gap: 20px;
}

.skill-card {
  background: var(--bg-elevated);
  border-radius: var(--radius-lg);
  padding: 18px 16px 16px;
  border: 1px solid var(--border-subtle);
  position: relative;
  overflow: hidden;
}

.skill-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at top, rgba(59, 130, 246, 0.18), transparent 65%);
  opacity: 0;
  transition: opacity 0.2s ease;
  pointer-events: none;
}

.skill-card:hover::before {
  opacity: 1;
}

.skill-icon-wrap {
  width: 32px;
  height: 32px;
  border-radius: 12px;
  background: rgba(37, 99, 235, 0.08);
  display: grid;
  place-items: center;
  margin-bottom: 10px;
}

.skill-card-image {
  margin-bottom: 10px;
}

.skill-card-image img {
  display: block;
  max-width: 100%;
  height: auto;
  border-radius: 8px;
}

.skill-card:has(.skill-card-image img[src]) .skill-icon-wrap {
  display: none;
}

.skill-icon {
  font-size: 1.1rem;
}

.skill-card h3 {
  margin: 0 0 6px;
  font-size: 1rem;
}

.skill-card p {
  margin: 0 0 10px;
  font-size: 0.86rem;
  color: var(--text-soft);
}

.skill-list {
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: 0.78rem;
  color: var(--text-soft);
}

.skill-list li {
  padding-block: 3px;
}

/* PROJECTS */
.projects {
  background: radial-gradient(circle at bottom left, #e5e7eb 0, #e5e7eb 45%, #e0f2fe 100%);
}

body.theme-dark .projects {
  background:
    radial-gradient(circle at bottom left, rgba(15, 118, 110, 0.22), transparent 60%),
    linear-gradient(180deg, #020617 0%, #020617 100%);
}

.projects-grid {
  display: flex;
  gap: 16px;
  overflow-x: auto;
  padding-bottom: 6px;
  scroll-snap-type: x mandatory;
}

.project-card {
  display: flex;
  flex-direction: column;
  background: var(--bg-elevated);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-subtle);
  overflow: hidden;
  box-shadow: var(--shadow-soft);
  min-width: 260px;
  max-width: 320px;
  scroll-snap-align: start;
}

.project-thumb {
  height: 160px;
  position: relative;
  border-bottom: 1px solid rgba(148, 163, 184, 0.4);
}

.project-thumb.placeholder {
  background: radial-gradient(circle at top, rgba(59, 130, 246, 0.55), rgba(191, 219, 254, 1));
  display: flex;
  align-items: flex-end;
  padding: 10px 12px;
}

.project-thumb .project-thumb-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 0;
}

.project-thumb:has(.project-thumb-img[src]) .thumb-label {
  position: relative;
  z-index: 1;
  background: rgba(15, 23, 42, 0.85);
}

body.theme-dark .project-thumb.placeholder {
  background: radial-gradient(circle at top, rgba(15, 23, 42, 0.95), rgba(15, 23, 42, 0.98));
}

.thumb-label {
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: #e2e8f0;
  background: rgba(15, 23, 42, 0.85);
  padding: 3px 9px;
  border-radius: 999px;
  border: 1px solid rgba(148, 163, 184, 0.6);
}

.project-content {
  padding: 16px 14px 14px;
}

.project-content h3 {
  margin: 0 0 6px;
  font-size: 1rem;
}

.project-content p {
  margin: 0 0 10px;
  font-size: 0.86rem;
  color: var(--text-soft);
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.project-tags li {
  font-size: 0.76rem;
  padding: 3px 9px;
  border-radius: 999px;
  background: rgba(219, 234, 254, 0.8);
  border: 1px solid rgba(148, 163, 184, 0.8);
}

/* CV SECTION */
.cv {
  background: radial-gradient(circle at center, #e5e7eb 0, #eef2ff 55%, #e5e7eb 100%);
}

body.theme-dark .cv {
  background:
    radial-gradient(circle at center, rgba(15, 23, 42, 0.9), transparent 65%),
    linear-gradient(180deg, #020617 0%, #020617 100%);
}

.cv-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.5fr);
  gap: 26px;
  background: var(--bg-elevated);
  border-radius: 22px;
  border: 1px solid var(--border-subtle);
  padding: 22px;
  box-shadow: var(--shadow-soft);
}

.cv-sidebar {
  background: radial-gradient(circle at top, rgba(191, 219, 254, 0.9), rgba(255, 255, 255, 1));
  border-radius: 18px;
  padding: 18px 16px;
  border: 1px solid rgba(148, 163, 184, 0.8);
}

body.theme-dark .cv-sidebar {
  background: radial-gradient(circle at top, rgba(15, 23, 42, 0.95), rgba(15, 23, 42, 0.98));
  border-color: rgba(37, 99, 235, 0.7);
}

.cv-name-block {
  margin-bottom: 18px;
}

.cv-name {
  margin: 0 0 6px;
  font-size: 1.35rem;
}

.cv-title {
  margin: 0;
  font-size: 0.9rem;
  color: var(--text-soft);
}

.cv-edu-highlight {
  margin: 6px 0 0;
  font-size: 0.8rem;
  padding: 4px 9px;
  border-radius: 999px;
  background: rgba(37, 99, 235, 0.08);
  color: var(--accent-strong);
  border: 1px solid rgba(59, 130, 246, 0.45);
  display: inline-flex;
}

.cv-section {
  margin-bottom: 18px;
}

.cv-section h4 {
  margin: 0 0 8px;
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent-strong);
}

.cv-section ul {
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: 0.8rem;
  color: var(--text-soft);
}

.cv-section li {
  padding-block: 3px;
}

.cv-section .label {
  display: inline-block;
  min-width: 52px;
  color: var(--text);
}

.cv-main {
  padding: 4px;
}

.cv-block + .cv-block {
  margin-top: 18px;
}

.cv-block h4 {
  margin: 0 0 6px;
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--text-soft);
}

.cv-block p {
  margin: 0;
  font-size: 0.86rem;
  color: var(--text-soft);
}

.cv-item {
  padding-top: 10px;
}

.cv-item-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 4px;
}

.cv-item-header h5 {
  margin: 0 0 2px;
  font-size: 0.92rem;
}

.cv-item-header .meta {
  margin: 0;
  font-size: 0.78rem;
  color: var(--text-soft);
}

.cv-item ul {
  margin: 0;
  padding-left: 18px;
  font-size: 0.82rem;
  color: var(--text-soft);
}

/* CONTACT */
.contact-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.3fr);
  gap: 22px;
}

.contact-info {
  background: var(--bg-elevated);
  border-radius: var(--radius-lg);
  padding: 18px 16px;
  border: 1px solid var(--border-subtle);
}

.contact-line {
  margin: 0 0 8px;
  font-size: 0.9rem;
  color: var(--text-soft);
}

.contact-line .label {
  display: inline-block;
  min-width: 58px;
  color: var(--text);
}

.contact-form {
  background: var(--bg-elevated);
  border-radius: var(--radius-lg);
  padding: 18px 16px 16px;
  border: 1px solid var(--border-subtle);
}

.form-row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-bottom: 10px;
}

.phone-row {
  display: flex;
  align-items: stretch;
  gap: 8px;
}

.phone-country {
  flex: 0 0 112px;
}

.phone-country select {
  height: 100%;
  width: 100%;
  font: inherit;
  color: var(--text);
  background: #f9fafb;
  border-top-left-radius: 10px;
  border-bottom-left-radius: 10px;
  border-top-right-radius: 0;
  border-bottom-right-radius: 0;
  border: 1px solid rgba(148, 163, 184, 0.9);
  padding: 8px 9px;
  outline: none;
  cursor: pointer;
}

.phone-country select:focus {
  border-color: var(--accent-strong);
  box-shadow: 0 0 0 1px rgba(37, 99, 235, 0.3);
  background: #ffffff;
}

.phone-row #phone {
  flex: 1 1 auto;
  border-top-left-radius: 0;
  border-bottom-left-radius: 0;
  margin-left: -1px; /* Ortadaki çift kenarlığı gizle */
  height: 100%;
}

.field label {
  font-size: 0.8rem;
  color: var(--text-soft);
}

.required {
  color: #ef4444;
}

input,
textarea {
  font: inherit;
  color: var(--text);
  background: #f9fafb;
  border-radius: 10px;
  border: 1px solid rgba(148, 163, 184, 0.9);
  padding: 8px 9px;
  outline: none;
  transition: border-color 0.18s ease, box-shadow 0.18s ease, background 0.18s ease;
}

input::placeholder,
textarea::placeholder {
  color: #9ca3af;
}

input:focus,
textarea:focus {
  border-color: var(--accent-strong);
  box-shadow: 0 0 0 1px rgba(37, 99, 235, 0.3);
  background: #ffffff;
}

.form-feedback {
  margin: 10px 0 0;
  padding: 10px 12px;
  border-radius: var(--radius-md);
  font-size: 0.88rem;
}

.form-feedback--success {
  background: rgba(34, 197, 94, 0.12);
  border: 1px solid rgba(34, 197, 94, 0.4);
  color: #15803d;
}

.form-feedback--error {
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid rgba(239, 68, 68, 0.4);
  color: #b91c1c;
}

body.theme-dark .form-feedback--success {
  background: rgba(34, 197, 94, 0.15);
  color: #86efac;
}

body.theme-dark .form-feedback--error {
  background: rgba(239, 68, 68, 0.15);
  color: #fca5a5;
}

.form-helper {
  margin: 8px 0 0;
  font-size: 0.76rem;
  color: var(--text-soft);
}

/* FOOTER */
.site-footer {
  border-top: 1px solid rgba(148, 163, 184, 0.35);
  padding: 16px 0 22px;
  margin-top: 40px;
  background: linear-gradient(to top, rgba(226, 232, 240, 1), rgba(241, 245, 249, 0.95));
}

body.theme-dark .site-footer {
  background: linear-gradient(to top, rgba(15, 23, 42, 1), rgba(15, 23, 42, 0.98));
  border-top-color: rgba(30, 64, 175, 0.8);
}

.scroll-top {
  position: fixed;
  right: 18px;
  bottom: 18px;
  width: 44px;
  height: 44px;
  border-radius: 999px;
  border: 1px solid rgba(148, 163, 184, 0.6);
  background: rgba(248, 250, 252, 0.92);
  color: var(--text);
  display: grid;
  place-items: center;
  cursor: pointer;
  box-shadow: 0 16px 34px rgba(15, 23, 42, 0.18);
  opacity: 0;
  transform: translateY(10px);
  pointer-events: none;
  transition: opacity 0.18s ease, transform 0.18s ease, box-shadow 0.18s ease,
    border-color 0.18s ease, background 0.18s ease;
  z-index: 60;
}

.scroll-top.is-visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.scroll-top:hover {
  transform: translateY(-2px);
  border-color: var(--accent-strong);
  box-shadow: 0 18px 44px rgba(15, 23, 42, 0.22);
}

body.theme-dark .scroll-top {
  background: rgba(15, 23, 42, 0.92);
  border-color: rgba(37, 99, 235, 0.8);
  color: #e5e7eb;
  box-shadow: 0 18px 44px rgba(15, 23, 42, 0.6);
}

.scroll-top span {
  font-size: 1.1rem;
  line-height: 1;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  font-size: 0.8rem;
  color: var(--text-soft);
}

.footer-note {
  opacity: 0.8;
}

/* RESPONSIVE */
@media (max-width: 960px) {
  .hero-inner {
    grid-template-columns: minmax(0, 1fr);
  }

  .hero-visual {
    order: -1;
    margin-bottom: 10px;
  }

  .skills-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .projects-grid {
    padding-inline: 4px;
  }

  .cv-layout {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 1.4fr);
  }

  .contact-layout {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 1.4fr);
  }
}

@media (max-width: 720px) {
  .header-inner {
    gap: 8px;
  }

  .header-actions {
    gap: 6px;
  }

  .main-nav {
    display: flex;
    justify-content: space-between;
    gap: 8px;
    flex-wrap: nowrap;
    overflow-x: auto;
  }

  .section {
    padding-block: 56px;
  }

  .hero {
    padding-top: 56px;
  }

  .skills-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .projects-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .cv-layout {
    grid-template-columns: minmax(0, 1fr);
  }

  .contact-layout {
    grid-template-columns: minmax(0, 1fr);
  }

  .form-row {
    grid-template-columns: minmax(0, 1fr);
  }

  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
  }
}