/* ── Header & Navigation ────────────────────────────────────────────── */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: 68px;
  display: flex;
  align-items: center;
  transition: background 0.4s, border-color 0.4s, backdrop-filter 0.4s, -webkit-backdrop-filter 0.4s;
  background: transparent;
  border-bottom: 1px solid transparent;
}

.header.scrolled {
  background: var(--header-bg-scrolled);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--header-border-scrolled);
}

.nav {
  max-width: 1200px;
  width: 100%;
  margin: 0 auto;
  padding: 0 clamp(1.5rem, 5vw, 3rem);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-right {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.logo {
  font-weight: 900;
  font-size: 1.5rem;
  letter-spacing: -0.05em;
  color: var(--color-text);
}

.logo-dot {
  color: var(--color-rose);
}

.nav-links {
  display: flex;
  gap: 0.25rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-item {
  font-size: 0.875rem;
  font-weight: 600;
  padding: 0.45rem 1rem;
  border-radius: 8px;
  letter-spacing: 0.01em;
  transition: all 0.2s;
  color: var(--color-text-muted);
  background: transparent;
}

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

.nav-item.active {
  color: var(--color-rose);
  background: var(--color-rose-bg);
}

/* ── Theme Toggle Button ────────────────────────────────────────────── */
.theme-toggle-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  color: var(--color-rose);
  cursor: pointer;
  font-size: 1.1rem;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.theme-toggle-btn:hover {
  transform: translateY(-2px) rotate(8deg);
  border-color: var(--color-rose);
  background: var(--color-rose-bg);
}

/* ── Pagination Dots ────────────────────────────────────────────────── */
.pagination-dots {
  position: fixed;
  right: 2rem;
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  flex-direction: column;
  gap: 1rem;
  z-index: 100;
}

.pagination-dot {
  display: block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: transparent;
  border: 1.5px solid var(--color-text-dim);
  transition: all 0.3s;
}

.pagination-dot:hover {
  border-color: var(--color-rose);
}

.pagination-dot.active {
  width: 10px;
  height: 10px;
  background: var(--color-rose);
  border-color: var(--color-rose);
  box-shadow: 0 0 10px rgba(201, 160, 154, 0.35);
}

/* ── Animated Section ───────────────────────────────────────────────── */
.anim-section {
  opacity: 0;
  transform: translateY(48px);
  transition: opacity 0.9s cubic-bezier(0.16, 1, 0.3, 1), transform 0.9s cubic-bezier(0.16, 1, 0.3, 1);
}

.anim-section.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ── Hero Section ───────────────────────────────────────────────────── */
.hero-container {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
}

.hero-glow {
  position: absolute;
  top: 30%;
  left: -10%;
  width: 60vw;
  height: 60vw;
  border-radius: 50%;
  background: var(--hero-glow-bg);
  pointer-events: none;
}

.hero-line {
  position: absolute;
  left: clamp(1.5rem, 5vw, 3rem);
  top: 0;
  bottom: 0;
  width: 1px;
  background: var(--hero-line-bg);
  opacity: 0.5;
}

.hero-content {
  max-width: 1200px;
  width: 100%;
  margin: 0 auto;
  padding: 0 clamp(1.5rem, 5vw, 3rem);
  padding-top: 100px;
  padding-bottom: 80px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--badge-bg);
  border: 1px solid var(--color-border);
  border-radius: 100px;
  padding: 0.35rem 1rem;
  margin-bottom: 2rem;
  animation-delay: 0.1s;
}

.badge-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-rose);
  display: block;
}

.badge-text {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--badge-text);
  letter-spacing: 0.06em;
}

.hero-title {
  font-size: clamp(3rem, 8vw, 6rem);
  font-weight: 900;
  line-height: 1.04;
  letter-spacing: -0.05em;
  color: var(--color-text);
  margin: 0 0 1.5rem;
  animation-delay: 0.2s;
}

.hero-name-stroke {
  color: transparent;
  -webkit-text-stroke: 1.5px var(--color-rose);
  display: inline-block;
}

.hero-sub {
  font-size: clamp(1rem, 2vw, 1.2rem);
  color: var(--color-text-muted);
  line-height: 1.75;
  max-width: 520px;
  margin: 0 0 2.5rem;
  font-weight: 400;
  animation-delay: 0.35s;
}

.hero-actions {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  animation-delay: 0.5s;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.85rem 1.8rem;
  background: var(--color-rose);
  color: #ffffff;
  font-weight: 700;
  font-size: 0.9rem;
  border-radius: 10px;
  letter-spacing: -0.01em;
  transition: all 0.3s;
}

[data-theme="dark"] .btn-primary {
  color: #0a0606;
}

.btn-primary:hover {
  background: var(--color-rose-dark);
  color: #ffffff;
  transform: translateY(-2px);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.85rem 1.8rem;
  background: transparent;
  color: var(--btn-sec-text);
  font-weight: 700;
  font-size: 0.9rem;
  border-radius: 10px;
  border: 1px solid var(--btn-sec-border);
  letter-spacing: -0.01em;
  transition: all 0.3s;
}

.btn-secondary:hover {
  border-color: var(--color-rose);
  color: var(--color-rose);
}

.scroll-indicator {
  position: absolute;
  bottom: 3rem;
  left: clamp(1.5rem, 5vw, 3rem);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  animation-delay: 1.2s;
}

.scroll-mouse {
  width: 24px;
  height: 38px;
  border-radius: 12px;
  border: 1.5px solid var(--color-border);
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: 5px 0;
}

.scroll-dot {
  width: 4px;
  height: 8px;
  border-radius: 2px;
  background: var(--color-rose);
  animation: scroll-dot 2s ease-in-out infinite;
}

@keyframes scroll-dot {
  0%, 100% { transform: translateY(0); opacity: 1; }
  60% { transform: translateY(10px); opacity: 0.2; }
}

.scroll-label {
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--color-text-dim);
  letter-spacing: 0.1em;
}

/* ── Profile Section ────────────────────────────────────────────────── */
.profile-wrapper {
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: var(--color-bg);
  border-top: 1px solid var(--color-border-subtle);
  border-bottom: 1px solid var(--color-border-subtle);
}

.profile-container {
  max-width: 1200px;
  width: 100%;
  margin: 0 auto;
  padding: clamp(6rem, 12vh, 8rem) clamp(1.5rem, 5vw, 3rem);
}

.section-label {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  color: var(--color-rose);
  text-transform: uppercase;
  margin-bottom: 0.75rem;
}

.section-title-lg {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 900;
  letter-spacing: -0.04em;
  color: var(--color-text);
  margin: 0;
}

.profile-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1px;
  background: var(--color-border-subtle);
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid var(--color-border-subtle);
  margin-top: 3rem;
}

.profile-card {
  background: var(--color-surface);
  padding: 2rem;
  transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1), background-color 0.35s ease, border-color 0.35s ease, box-shadow 0.35s ease;
}

.profile-card:hover {
  transform: translateY(-4px);
  background: var(--color-surface-2);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.25);
  position: relative;
  z-index: 2;
}

.profile-card-title {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--color-text);
  margin: 0 0 1.5rem;
  letter-spacing: -0.02em;
  transition: color 0.3s ease;
}

.profile-card:hover .profile-card-title {
  color: var(--color-rose);
}

.skills-list {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.skill-cat-label {
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--color-text-dim);
  text-transform: uppercase;
  margin-bottom: 0.5rem;
}

.skill-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
}

.skill-tag-pill {
  font-size: 0.78rem;
  font-weight: 600;
  padding: 0.3rem 0.8rem;
  border-radius: 100px;
  background: var(--color-rose-bg);
  color: var(--color-rose);
  border: 1px solid var(--color-border);
  transition: all 0.25s ease;
  cursor: default;
}

.skill-tag-pill:hover {
  transform: translateY(-2px) scale(1.04);
  background: var(--color-rose);
  color: #ffffff;
  border-color: var(--color-rose);
  box-shadow: 0 4px 12px rgba(201, 160, 154, 0.25);
}

[data-theme="dark"] .skill-tag-pill:hover {
  color: #0a0606;
}

.edu-box {
  background: var(--color-surface-2);
  border-radius: 10px;
  padding: 1.25rem;
  border: 1px solid var(--color-border-subtle);
  transition: all 0.3s ease;
}

.edu-box:hover {
  transform: translateY(-3px);
  border-color: var(--color-rose);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
}

.edu-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 0.5rem;
}

.edu-school {
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--color-text);
  margin: 0;
}

.edu-period {
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--color-rose);
  background: var(--color-rose-bg);
  padding: 0.2rem 0.6rem;
  border-radius: 100px;
  border: 1px solid var(--color-border);
  white-space: nowrap;
}

.edu-dept {
  font-size: 0.88rem;
  color: var(--color-text-muted);
  margin: 0;
}

.edu-year {
  font-size: 0.82rem;
  color: var(--color-text-dim);
  margin: 0.25rem 0 0;
}

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

.interest-pill {
  font-size: 0.85rem;
  font-weight: 600;
  padding: 0.45rem 1rem;
  border-radius: 10px;
  background: var(--color-surface-2);
  color: var(--color-text-muted);
  border: 1px solid var(--color-border-subtle);
  transition: all 0.25s ease;
  cursor: default;
}

.interest-pill:hover {
  transform: translateY(-2px);
  color: var(--color-rose);
  border-color: var(--color-rose);
  background: var(--color-rose-bg);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

/* ── Projects Section ───────────────────────────────────────────────── */
.projects-wrapper {
  min-height: 100vh;
  display: flex;
  align-items: center;
}

.projects-container {
  max-width: 1200px;
  width: 100%;
  margin: 0 auto;
  padding: clamp(6rem, 12vh, 8rem) clamp(1.5rem, 5vw, 3rem);
}

.projects-subtext {
  color: var(--color-text-muted);
  font-size: 1rem;
  margin: 0.5rem 0 0;
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.5rem;
  margin-top: 3rem;
}

/* Project Card Flip/Hover Effect */
.project-card {
  position: relative;
  border-radius: 16px;
  border: 1px solid var(--project-card-border);
  background: var(--project-card-bg);
  min-height: 240px;
  display: grid;
  overflow: hidden;
  cursor: default;
  transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  box-shadow: none;
  transform: none;
}

.project-card:hover {
  border-color: var(--project-card-hover-border);
  background: var(--project-card-hover-bg);
  box-shadow: var(--project-card-shadow);
  transform: translateY(-4px);
}

.project-accent-line {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--color-rose);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.project-card:hover .project-accent-line {
  transform: scaleX(1);
}

.project-front {
  grid-area: 1/1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 2.5rem 2rem;
  text-align: center;
  opacity: 1;
  transform: translateY(0);
  transition: all 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  pointer-events: auto;
}

.project-card:hover .project-front {
  opacity: 0;
  transform: translateY(-16px);
  pointer-events: none;
}

.project-emoji {
  font-size: 2.5rem;
  display: block;
  margin-bottom: 0.75rem;
}

.project-front-title {
  font-weight: 800;
  font-size: 1.2rem;
  color: var(--color-text);
  margin: 0;
  letter-spacing: -0.02em;
}

.project-back {
  grid-area: 1/1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 1.75rem;
  opacity: 0;
  transform: translateY(16px);
  transition: all 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  pointer-events: none;
}

.project-card:hover .project-back {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.project-back-title {
  font-weight: 700;
  font-size: 1rem;
  color: var(--color-text);
  margin: 0 0 0.6rem;
}

.project-desc {
  font-size: 0.84rem;
  color: var(--color-text-muted);
  line-height: 1.65;
  margin: 0 0 1rem;
}

.project-tech-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem;
  margin-bottom: 1.25rem;
}

.tech-tag-sm {
  font-size: 0.7rem;
  font-weight: 600;
  padding: 0.2rem 0.55rem;
  border-radius: 6px;
  background: var(--tech-tag-bg);
  color: var(--color-text-muted);
  border: 1px solid var(--color-border-subtle);
}

.project-link-btns {
  display: flex;
  gap: 0.5rem;
  margin-top: auto;
}

.btn-github {
  font-size: 0.78rem;
  font-weight: 700;
  padding: 0.4rem 0.9rem;
  border-radius: 8px;
  background: var(--color-rose-bg);
  color: var(--color-rose);
  border: 1px solid var(--color-border);
  transition: all 0.2s;
}

.btn-github:hover {
  background: var(--color-rose);
  color: #ffffff;
}

[data-theme="dark"] .btn-github:hover {
  color: #0a0606;
}

.btn-live {
  font-size: 0.78rem;
  font-weight: 700;
  padding: 0.4rem 0.9rem;
  border-radius: 8px;
  background: var(--color-rose);
  color: #ffffff;
  transition: all 0.2s;
}

[data-theme="dark"] .btn-live {
  color: #0a0606;
}

.btn-live:hover {
  background: var(--color-rose-dark);
  color: #ffffff;
}

.project-card-coming {
  border-radius: 16px;
  border: 1px dashed var(--color-border-subtle);
  min-height: 240px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  opacity: 0.5;
}

.coming-label {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin: 0;
  font-weight: 600;
}

/* ── Contact Section ────────────────────────────────────────────────── */
.contact-wrapper {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--color-bg);
  border-top: 1px solid var(--color-border-subtle);
}

.contact-container {
  flex: 1;
  max-width: 600px;
  width: 100%;
  margin: 0 auto;
  padding: clamp(6rem, 12vh, 8rem) clamp(1.5rem, 5vw, 3rem) 4rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
  text-align: center;
}

.contact-desc {
  color: var(--color-text-muted);
  font-size: 1rem;
  line-height: 1.7;
  margin: 0 auto 2.5rem;
  max-width: 420px;
}

.contact-success {
  background: var(--color-rose-bg);
  border: 1px solid var(--color-border);
  border-radius: 16px;
  padding: 3rem 2rem;
  color: var(--color-rose);
  font-weight: 600;
  font-size: 1.1rem;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.form-input,
.form-textarea {
  width: 100%;
  padding: 0.9rem 1.2rem;
  background: var(--input-bg);
  border: 1px solid var(--color-border);
  border-radius: 10px;
  color: var(--color-text);
  font-size: 0.9rem;
  font-family: inherit;
  box-sizing: border-box;
  transition: border-color 0.2s, box-shadow 0.2s;
  outline: none;
}

.form-input:focus,
.form-textarea:focus {
  border-color: var(--color-rose);
  box-shadow: 0 0 0 3px rgba(201, 160, 154, 0.15);
}

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

.contact-btn {
  padding: 1rem;
  border-radius: 10px;
  border: 1px solid var(--color-rose);
  background: transparent;
  color: var(--color-rose);
  font-family: inherit;
  font-weight: 700;
  font-size: 0.9rem;
  cursor: pointer;
  opacity: 1;
  transition: all 0.3s;
  letter-spacing: 0.01em;
  margin-top: 0.5rem;
}

.contact-btn:hover:not(:disabled) {
  background: var(--color-rose);
  color: #ffffff;
}

[data-theme="dark"] .contact-btn:hover:not(:disabled) {
  color: #0a0606;
}

.contact-btn:disabled {
  cursor: not-allowed;
  opacity: 0.6;
}

.honeypot {
  display: none !important;
}

/* ── Footer ─────────────────────────────────────────────────────────── */
.footer {
  text-align: center;
  padding: 1.5rem clamp(1.5rem, 5vw, 3rem);
  border-top: 1px solid var(--color-border-subtle);
  color: var(--color-text-dim);
  font-size: 0.82rem;
  font-weight: 500;
}