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

:root {
  color-scheme: dark;
  --bg-gradient: radial-gradient(circle at top left, #7c3aed 0, #1e1037 32%, transparent 58%),
    radial-gradient(circle at bottom right, #22d3ee 0, #020617 55%),
    radial-gradient(circle at top right, #4c1d95 0, transparent 50%), #020617;
  --color-bg: #020617;
  --color-text: #f9fafb;
  --color-text-muted: #a5b4fc;
  --color-accent: #818cf8;
  --color-accent-soft: rgba(129, 140, 248, 0.18);
  --color-border-subtle: rgba(148, 163, 184, 0.26);
  --color-card-bg: rgba(15, 23, 42, 0.96);
  --color-card-border: rgba(148, 163, 184, 0.55);
  --color-input-bg: rgba(15, 23, 42, 0.9);
  --color-input-border: rgba(148, 163, 184, 0.5);
  --color-input-focus: rgba(129, 140, 248, 0.8);
  --color-error: #f87171;
  --color-success: #34d399;
  --shadow-soft: 0 22px 55px rgba(15, 23, 42, 0.95);
  --shadow-card: 0 14px 32px rgba(15, 23, 42, 0.9);
  --radius-lg: 18px;
  --radius-pill: 999px;
  --transition-fast: 160ms ease-out;
  --transition-normal: 220ms ease-out;
  --container-width: 1040px;
}

[data-theme="light"] {
  color-scheme: light;
  --bg-gradient: radial-gradient(circle at top left, #c4b5fd 0, #e0e7ff 32%, transparent 58%),
    radial-gradient(circle at bottom right, #a5f3fc 0, #f8fafc 55%),
    radial-gradient(circle at top right, #ddd6fe 0, transparent 50%), #f8fafc;
  --color-bg: #f8fafc;
  --color-text: #0f172a;
  --color-text-muted: #475569;
  --color-accent: #6366f1;
  --color-accent-soft: rgba(99, 102, 241, 0.12);
  --color-border-subtle: rgba(148, 163, 184, 0.4);
  --color-card-bg: rgba(255, 255, 255, 0.9);
  --color-card-border: rgba(148, 163, 184, 0.4);
  --color-input-bg: rgba(255, 255, 255, 0.95);
  --color-input-border: rgba(148, 163, 184, 0.5);
  --color-input-focus: rgba(99, 102, 241, 0.6);
  --color-error: #ef4444;
  --color-success: #10b981;
  --shadow-soft: 0 22px 55px rgba(0, 0, 0, 0.15);
  --shadow-card: 0 14px 32px rgba(0, 0, 0, 0.1);
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
  background: var(--bg-gradient) fixed;
  color: var(--color-text);
  display: flex;
  flex-direction: column;
  transition: color 300ms ease-out;
}

body.is-ready .page-shell {
  opacity: 1;
  transform: translateY(0);
}

.page-shell {
  flex: 1 0 auto;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 1.25rem 1.25rem 2.5rem;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 380ms ease-out, transform 380ms ease-out;
}

header {
  position: sticky;
  top: 0;
  z-index: 10;
  padding: 0.75rem 0 0.5rem;
  backdrop-filter: blur(18px);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.4rem 0.9rem;
  background: linear-gradient(135deg, rgba(10, 7, 35, 0.92), rgba(24, 10, 52, 0.92));
  border-radius: var(--radius-pill);
  border: 1px solid rgba(139, 92, 246, 0.35);
  box-shadow: 0 18px 36px rgba(0, 0, 0, 0.6);
}

[data-theme="light"] .header-inner {
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.95), rgba(241, 245, 249, 0.95));
  border-color: rgba(148, 163, 184, 0.4);
  box-shadow: 0 18px 36px rgba(0, 0, 0, 0.1);
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.95rem;
}

.brand-mark {
  width: 26px;
  height: 26px;
  border-radius: 30%;
  background: radial-gradient(circle at 30% 10%, #f9fafb, #22d3ee 40%, #7c3aed 80%);
  box-shadow: 0 0 0 1px rgba(248, 250, 252, 0.2), 0 10px 24px rgba(15, 23, 42, 0.9);
}

.brand-text-main {
  font-weight: 600;
  letter-spacing: 0.03em;
}

.brand-text-sub {
  color: var(--color-text-muted);
  font-size: 0.78rem;
}

nav {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.82rem;
}

nav a {
  color: var(--color-text-muted);
  text-decoration: none;
  padding: 0.25rem 0.8rem;
  border-radius: 999px;
  border: 1px solid transparent;
  transition: color var(--transition-fast), background-color var(--transition-fast),
    border-color var(--transition-fast), transform 90ms ease-out;
}

nav a:hover,
nav a:focus-visible {
  color: var(--color-text);
  background-color: rgba(15, 23, 42, 0.6);
  border-color: rgba(148, 163, 184, 0.5);
  transform: translateY(-1px);
  outline: none;
}

[data-theme="light"] nav a:hover,
[data-theme="light"] nav a:focus-visible {
  background-color: rgba(241, 245, 249, 0.8);
}

.lang-switch {
  display: inline-flex;
  align-items: center;
  gap: 0.15rem;
  margin-left: 0.15rem;
  padding: 0.1rem;
  border-radius: 999px;
  background-color: rgba(15, 23, 42, 0.8);
  border: 1px solid rgba(148, 163, 184, 0.45);
}

[data-theme="light"] .lang-switch {
  background-color: rgba(241, 245, 249, 0.8);
  border-color: rgba(148, 163, 184, 0.4);
}

.lang-btn {
  min-width: 2.1rem;
  padding: 0.18rem 0.55rem;
  border-radius: 999px;
  border: none;
  background: transparent;
  color: var(--color-text-muted);
  font-size: 0.75rem;
  cursor: pointer;
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

.lang-btn[aria-pressed="true"] {
  background: linear-gradient(135deg, #8b5cf6, #4f46e5);
  color: #f9fafb;
}

[data-theme="light"] .lang-btn[aria-pressed="true"] {
  background: linear-gradient(135deg, #6366f1, #8b5cf6);
}

.lang-btn:focus-visible {
  outline: 2px solid #a855f7;
  outline-offset: 2px;
}

.theme-switch {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.2rem;
  height: 2.2rem;
  border-radius: 999px;
  border: 1px solid rgba(148, 163, 184, 0.45);
  background-color: rgba(15, 23, 42, 0.8);
  color: var(--color-text-muted);
  font-size: 1rem;
  cursor: pointer;
  transition: background-color var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast);
}

[data-theme="light"] .theme-switch {
  background-color: rgba(241, 245, 249, 0.8);
  border-color: rgba(148, 163, 184, 0.4);
}

.theme-switch:hover,
.theme-switch:focus-visible {
  color: var(--color-text);
  border-color: rgba(148, 163, 184, 0.8);
  outline: none;
}

main {
  padding-top: 1.4rem;
}

section {
  padding: 2.5rem 0;
}

.pill {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.2rem 0.7rem;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(148, 163, 184, 0.4);
  background: rgba(15, 23, 42, 0.7);
  color: var(--color-text-muted);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

[data-theme="light"] .pill {
  background: rgba(255, 255, 255, 0.7);
}

.pill-dot {
  width: 6px;
  height: 6px;
  border-radius: 999px;
  background: radial-gradient(circle, #a855f7, #4c1d95);
}

.hero {
  min-height: 78vh;
  display: grid;
  grid-template-columns: minmax(0, 1.6fr);
  gap: 2.2rem;
  align-items: center;
}

/* Fade-in animations */
.fade-in-up {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 520ms ease-out, transform 520ms ease-out;
}

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

.fade-in-up--fast {
  transition-delay: 60ms;
}

.fade-in-up--normal {
  transition-delay: 160ms;
}

.fade-in-up--slow {
  transition-delay: 260ms;
}

body.is-ready .fade-in-up {
  opacity: 1;
  transform: translateY(0);
}

.hero-main {
  max-width: 34rem;
}

.hero-title {
  margin: 1.1rem 0 0.75rem;
  font-size: clamp(2.1rem, 6vw, 3.4rem);
  line-height: 1.05;
  letter-spacing: -0.04em;
}

.hero-title span {
  background: linear-gradient(120deg, #e5e7eb, #c4b5fd, #a855f7);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

[data-theme="light"] .hero-title span {
  background: linear-gradient(120deg, #4c1d95, #7c3aed, #6366f1);
  -webkit-background-clip: text;
  background-clip: text;
}

.hero-subtitle {
  margin-bottom: 0.75rem;
  color: var(--color-text-muted);
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
}

.hero-subtitle-en {
  display: block;
  margin-top: 0.15rem;
  font-size: 0.8rem;
  text-transform: none;
  letter-spacing: 0.08em;
  opacity: 0.85;
}

.hero-description {
  margin: 0 0 1.6rem;
  color: var(--color-text-muted);
  font-size: 0.98rem;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 1.8rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.7rem 1.2rem;
  border-radius: var(--radius-pill);
  font-size: 0.9rem;
  font-weight: 500;
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: background-color var(--transition-normal), color var(--transition-normal),
    border-color var(--transition-normal), box-shadow var(--transition-normal),
    transform 120ms ease-out;
}

.btn-primary {
  background: linear-gradient(135deg, #8b5cf6, #4f46e5);
  color: #f9fafb;
  box-shadow: 0 18px 40px rgba(59, 130, 246, 0.45);
}

[data-theme="light"] .btn-primary {
  box-shadow: 0 18px 40px rgba(99, 102, 241, 0.35);
}

.btn-primary:hover,
.btn-primary:focus-visible {
  background: linear-gradient(135deg, #a855f7, #6366f1);
  box-shadow: 0 20px 50px rgba(59, 130, 246, 0.65);
  transform: translateY(-1px);
  outline: none;
}

.btn-ghost {
  background: rgba(15, 23, 42, 0.7);
  color: var(--color-text-muted);
  border-color: rgba(148, 163, 184, 0.4);
}

[data-theme="light"] .btn-ghost {
  background: rgba(255, 255, 255, 0.7);
}

.btn-ghost:hover,
.btn-ghost:focus-visible {
  color: var(--color-text);
  background: rgba(15, 23, 42, 0.95);
  border-color: rgba(148, 163, 184, 0.8);
  transform: translateY(-1px);
  outline: none;
}

[data-theme="light"] .btn-ghost:hover,
[data-theme="light"] .btn-ghost:focus-visible {
  background: rgba(255, 255, 255, 0.95);
}

.btn-icon {
  font-size: 1rem;
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  font-size: 0.78rem;
  color: var(--color-text-muted);
}

.hero-meta-item {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.35rem 0.7rem;
  border-radius: var(--radius-pill);
  background-color: rgba(15, 23, 42, 0.8);
  border: 1px solid rgba(148, 163, 184, 0.35);
}

[data-theme="light"] .hero-meta-item {
  background-color: rgba(255, 255, 255, 0.8);
}

.hero-meta-item:hover,
.hero-meta-item:focus-visible {
  background-color: rgba(15, 23, 42, 0.98);
  border-color: rgba(129, 140, 248, 0.8);
  transform: translateY(-1px);
  outline: none;
}

[data-theme="light"] .hero-meta-item:hover,
[data-theme="light"] .hero-meta-item:focus-visible {
  background-color: rgba(255, 255, 255, 0.98);
}

.hero-visual {
  position: relative;
  height: 220px;
  border-radius: var(--radius-lg);
  background: radial-gradient(circle at 10% 0, rgba(236, 252, 203, 0.12), transparent 55%),
    radial-gradient(circle at 80% 90%, rgba(196, 181, 253, 0.2), transparent 55%),
    radial-gradient(circle at 0 100%, rgba(96, 165, 250, 0.2), transparent 55%),
    linear-gradient(135deg, rgba(17, 24, 39, 0.95), rgba(15, 23, 42, 0.96));
  border: 1px solid rgba(148, 163, 184, 0.5);
  box-shadow: var(--shadow-soft);
  overflow: hidden;
}

[data-theme="light"] .hero-visual {
  background: radial-gradient(circle at 10% 0, rgba(139, 92, 246, 0.08), transparent 55%),
    radial-gradient(circle at 80% 90%, rgba(124, 58, 237, 0.12), transparent 55%),
    radial-gradient(circle at 0 100%, rgba(59, 130, 246, 0.1), transparent 55%),
    linear-gradient(135deg, rgba(255, 255, 255, 0.95), rgba(241, 245, 249, 0.95));
}

.hero-photo-wrapper {
  position: absolute;
  inset: 16% 18% 32% 18%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-photo {
  width: 100%;
  height: 100%;
  max-width: 148px;
  border-radius: 999px;
  object-fit: cover;
  border: 2px solid rgba(248, 250, 252, 0.9);
  box-shadow: 0 16px 32px rgba(15, 23, 42, 0.9);
}

.hero-orbit {
  position: absolute;
  inset: 14%;
  border-radius: 50%;
  border: 1px dashed rgba(148, 163, 184, 0.5);
  opacity: 0.7;
}

.hero-orbit-dot {
  position: absolute;
  width: 9px;
  height: 9px;
  border-radius: 999px;
  background: radial-gradient(circle, #a855f7, #4c1d95);
  box-shadow: 0 0 12px rgba(168, 85, 247, 0.8);
  top: 50%;
  left: 0;
  transform: translate(-50%, -50%);
  animation: orbit 12s linear infinite;
}

.hero-card {
  position: absolute;
  inset: auto 8% 12% 8%;
  padding: 0.85rem 1rem;
  border-radius: 16px;
  background: rgba(15, 23, 42, 0.96);
  border: 1px solid rgba(148, 163, 184, 0.55);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

[data-theme="light"] .hero-card {
  background: rgba(255, 255, 255, 0.96);
}

.hero-card-highlight {
  font-weight: 500;
  color: #e5e7eb;
}

[data-theme="light"] .hero-card-highlight {
  color: #0f172a;
}

.hero-card-tag {
  padding: 0.25rem 0.7rem;
  border-radius: 999px;
  background: rgba(15, 23, 42, 0.95);
  border: 1px solid rgba(139, 92, 246, 0.7);
  color: #e0e7ff;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

[data-theme="light"] .hero-card-tag {
  background: rgba(255, 255, 255, 0.95);
  color: #4c1d95;
}

.section-heading {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  margin-bottom: 1.6rem;
}

.section-eyebrow {
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

.section-title {
  font-size: 1.5rem;
  letter-spacing: -0.03em;
}

.section-title span {
  color: var(--color-accent);
}

.section-description {
  color: var(--color-text-muted);
  font-size: 0.95rem;
  max-width: 32rem;
}

.about {
  border-top: 1px solid var(--color-border-subtle);
  border-bottom: 1px solid var(--color-border-subtle);
}

.skills {
  border-bottom: 1px solid var(--color-border-subtle);
}

.skills-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1.2rem;
  margin-top: 1.4rem;
}

.skills-card {
  position: relative;
  padding: 1rem 1.1rem 1.05rem;
  border-radius: var(--radius-lg);
  background: radial-gradient(circle at top left, rgba(79, 70, 229, 0.22), transparent 55%),
    var(--color-card-bg);
  border: 1px solid var(--color-card-border);
  box-shadow: var(--shadow-card);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal),
    border-color var(--transition-normal), background-color var(--transition-normal);
}

.skills-card:hover,
.skills-card:focus-visible {
  transform: translateY(-4px);
  box-shadow: 0 20px 46px rgba(15, 23, 42, 0.95);
  border-color: var(--color-accent);
  background-color: var(--color-card-bg);
  outline: none;
}

[data-theme="light"] .skills-card:hover,
[data-theme="light"] .skills-card:focus-visible {
  box-shadow: 0 20px 46px rgba(0, 0, 0, 0.15);
}

.skills-icon {
  width: 40px;
  height: 40px;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: radial-gradient(circle at 30% 0, #f9fafb, #22d3ee 40%, #4f46e5 90%);
  box-shadow: 0 10px 18px rgba(15, 23, 42, 0.85);
  margin-bottom: 0.6rem;
  font-size: 1.4rem;
}

.skills-title {
  margin: 0 0 0.4rem;
  font-size: 1.02rem;
  letter-spacing: -0.02em;
}

.skills-text {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.6;
  color: var(--color-text-muted);
}

.about-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.6fr);
  gap: 1.8rem;
}

.about-text p {
  margin: 0 0 1rem;
  color: var(--color-text-muted);
  font-size: 0.98rem;
  line-height: 1.8;
}

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

.about-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1.2rem;
}

.about-tag {
  padding: 0.25rem 0.7rem;
  border-radius: var(--radius-pill);
  background-color: rgba(15, 23, 42, 0.85);
  border: 1px solid rgba(148, 163, 184, 0.45);
  font-size: 0.78rem;
  color: var(--color-text-muted);
}

[data-theme="light"] .about-tag {
  background-color: rgba(255, 255, 255, 0.85);
}

.about-tag:hover,
.about-tag:focus-visible {
  border-color: rgba(129, 140, 248, 0.8);
  color: var(--color-text);
  transform: translateY(-1px);
  outline: none;
}

.about-note {
  padding: 0.9rem 1rem;
  border-radius: var(--radius-lg);
  background: radial-gradient(circle at top left, rgba(91, 33, 182, 0.35), transparent 55%),
    var(--color-card-bg);
  border: 1px solid rgba(148, 163, 184, 0.7);
  font-size: 0.86rem;
  color: var(--color-text-muted);
}

.about-note strong {
  color: #e5e7eb;
}

[data-theme="light"] .about-note strong {
  color: #0f172a;
}

.contact {
  padding-bottom: 1.2rem;
}

.contact-inner {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr);
  gap: 1.4rem;
  align-items: flex-start;
}

.contact-card {
  padding: 1.1rem 1.3rem;
  border-radius: var(--radius-lg);
  background: var(--color-card-bg);
  border: 1px solid var(--color-card-border);
  box-shadow: var(--shadow-soft);
}

.contact-label {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--color-text-muted);
  margin-bottom: 0.25rem;
}

.contact-email {
  font-size: 1rem;
  margin-bottom: 0.9rem;
}

.contact-email a {
  color: #e5e7eb;
  text-decoration: none;
  border-bottom: 1px solid rgba(139, 92, 246, 0.6);
  padding-bottom: 0.08rem;
  transition: color var(--transition-fast), border-color var(--transition-fast);
}

[data-theme="light"] .contact-email a {
  color: #0f172a;
}

.contact-email a:hover,
.contact-email a:focus-visible {
  color: var(--color-accent);
  border-color: var(--color-accent);
  outline: none;
}

.contact-note {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-bottom: 0.9rem;
}

.socials {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.social-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.4rem 0.85rem;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(148, 163, 184, 0.5);
  background: rgba(15, 23, 42, 0.9);
  font-size: 0.82rem;
  color: var(--color-text-muted);
  text-decoration: none;
  transition: background-color var(--transition-normal), border-color var(--transition-normal),
    color var(--transition-normal), transform 120ms ease-out;
}

[data-theme="light"] .social-link {
  background: rgba(255, 255, 255, 0.9);
}

.social-link:hover,
.social-link:focus-visible {
  background: rgba(15, 23, 42, 0.98);
  border-color: var(--color-accent);
  color: var(--color-text);
  transform: translateY(-1px);
  outline: none;
}

[data-theme="light"] .social-link:hover,
[data-theme="light"] .social-link:focus-visible {
  background: rgba(255, 255, 255, 0.98);
}

.social-badge {
  width: 16px;
  height: 16px;
  border-radius: 4px;
  background: radial-gradient(circle at 30% 0, #f9fafb, #a855f7 50%, #1e1b4b 100%);
}

/* Contact Form Styles */
.contact-form {
  margin-top: 1.5rem;
  padding: 1.5rem;
  border-radius: var(--radius-lg);
  background: var(--color-card-bg);
  border: 1px solid var(--color-card-border);
  box-shadow: var(--shadow-soft);
}

.form-group {
  margin-bottom: 1rem;
}

.form-label {
  display: block;
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-bottom: 0.35rem;
}

.form-input,
.form-textarea {
  width: 100%;
  padding: 0.7rem 1rem;
  border-radius: 12px;
  border: 1px solid var(--color-input-border);
  background: var(--color-input-bg);
  color: var(--color-text);
  font-size: 0.95rem;
  font-family: inherit;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-input:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-input-focus);
  box-shadow: 0 0 0 3px rgba(129, 140, 248, 0.15);
}

[data-theme="light"] .form-input:focus,
[data-theme="light"] .form-textarea:focus {
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
}

.form-textarea {
  min-height: 120px;
  resize: vertical;
}

.form-error {
  display: none;
  font-size: 0.8rem;
  color: var(--color-error);
  margin-top: 0.3rem;
}

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

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

.form-success {
  display: none;
  padding: 1rem;
  border-radius: 12px;
  background: rgba(52, 211, 153, 0.1);
  border: 1px solid var(--color-success);
  color: var(--color-success);
  text-align: center;
  margin-top: 1rem;
}

.form-success.is-visible {
  display: block;
}

.form-submit {
  width: 100%;
  padding: 0.8rem 1.5rem;
  border-radius: var(--radius-pill);
  border: none;
  background: linear-gradient(135deg, #8b5cf6, #4f46e5);
  color: #f9fafb;
  font-size: 0.95rem;
  font-weight: 500;
  cursor: pointer;
  transition: transform 120ms ease-out, box-shadow 220ms ease-out;
}

.form-submit:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 30px rgba(99, 102, 241, 0.4);
}

.form-submit:active {
  transform: translateY(0);
}

.form-submit:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

/* Visit Counter */
.visit-counter {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.3rem 0.8rem;
  border-radius: var(--radius-pill);
  background: rgba(15, 23, 42, 0.6);
  border: 1px solid rgba(148, 163, 184, 0.3);
  font-size: 0.75rem;
  color: var(--color-text-muted);
}

[data-theme="light"] .visit-counter {
  background: rgba(255, 255, 255, 0.6);
}

.visit-counter-number {
  font-weight: 600;
  color: var(--color-accent);
}

footer {
  flex-shrink: 0;
  padding: 0.75rem 1.25rem 1.6rem;
  color: var(--color-text-muted);
  font-size: 0.78rem;
}

.footer-inner {
  max-width: var(--container-width);
  margin: 0 auto;
  border-top: 1px solid var(--color-border-subtle);
  padding-top: 0.9rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.7rem;
}

.footer-meta {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.footer-dot {
  width: 6px;
  height: 6px;
  border-radius: 999px;
  background: radial-gradient(circle, #22c55e, #16a34a);
  box-shadow: 0 0 12px rgba(34, 197, 94, 0.8);
}

.footer-link {
  color: var(--color-text-muted);
  text-decoration: none;
  border-bottom: 1px dashed rgba(148, 163, 184, 0.6);
  padding-bottom: 0.05rem;
  transition: color var(--transition-fast), border-color var(--transition-fast);
}

.footer-link:hover,
.footer-link:focus-visible {
  color: var(--color-accent);
  border-color: var(--color-accent);
  outline: none;
}

@keyframes orbit {
  from {
    transform: translate(-50%, -50%) rotate(0deg) translateX(72px) rotate(0deg);
  }
  to {
    transform: translate(-50%, -50%) rotate(360deg) translateX(72px) rotate(-360deg);
  }
}

@media (min-width: 640px) {
  .hero {
    grid-template-columns: minmax(0, 1.5fr) minmax(0, 1.1fr);
  }

  .about-grid {
    grid-template-columns: minmax(0, 1.7fr) minmax(0, 1.2fr);
    align-items: flex-start;
  }

  .contact-inner {
    grid-template-columns: minmax(0, 1.3fr) minmax(0, 1.2fr);
  }

  .skills-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1024px) {
  .skills-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (max-width: 600px) {
  .header-inner {
    padding-inline: 0.7rem;
  }

  nav {
    gap: 0.35rem;
  }

  nav a {
    padding-inline: 0.55rem;
  }

  .hero {
    min-height: 0;
  }

  .hero-visual {
    height: 190px;
  }
  
  .theme-switch {
    width: 1.9rem;
    height: 1.9rem;
    font-size: 0.9rem;
  }
}