:root {
  --bg-main: #0f1117;
  --bg-card: rgba(30, 32, 40, 0.6);
  --bg-card-solid: #1e2028;
  --text-main: #f9fafb;
  --text-dim: #9ca3af;
  --accent: #38bdf8;
  --border-color: rgba(255, 255, 255, 0.07);
  --toast-bg: rgba(15, 17, 23, 0.9);
  --toast-text: #f9fafb;
  --toast-border-success: rgba(56, 189, 248, .6);
  --toast-border-error: rgba(239, 68, 68, .6);
  /* kırmızımsı */
}

[data-theme="light"] {
  --bg-main: #f8fafc;
  --bg-card: rgba(255, 255, 255, 0.7);
  --bg-card-solid: #ffffff;
  --text-main: #0f172a;
  --text-dim: #4b5563;
  --accent: #0ea5e9;
  --border-color: rgba(0, 0, 0, 0.08);
  --toast-bg: rgba(255, 255, 255, 0.95);
  --toast-text: #0f172a;
  --toast-border-success: rgba(14, 165, 233, .6);
  --toast-border-error: rgba(239, 68, 68, .6);
}

* {
  box-sizing: border-box;
  -webkit-font-smoothing: antialiased;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Inter", Roboto, "Segoe UI", sans-serif;
  background-color: var(--bg-main);
  color: var(--text-main);
  line-height: 1.5;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

main {
  flex: 1;
}

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

a {
  color: var(--accent);
  text-decoration: none;
  transition: all 0.2s ease;
}

a:not([class]):hover {
  text-decoration: underline;
  opacity: 0.8;
}

section {
  padding: 4rem 1.5rem;
}

@media(min-width:768px) {
  section {
    padding: 5rem 2rem;
  }
}

.container {
  max-width: 1280px;
  margin: 0 auto;
}

/* NAVBAR */
.navbar {
  position: sticky;
  top: 0;
  z-index: 999;
  background-color: rgba(15, 17, 23, 0.6);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
}

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

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1280px;
  margin: 0 auto;
  padding: .75rem 1rem;
}

.brand {
  font-size: .9rem;
  font-weight: 600;
  color: var(--text-main);
  letter-spacing: -0.03em;
  transition: transform 0.2s ease;
  display: block;
}

.brand:hover {
  transform: scale(1.05);
}

.brand span {
  color: var(--accent);
  font-weight: 700;
}

.nav-links {
  display: none;
  gap: 1.5rem;
  font-size: .85rem;
  font-weight: 500;
}

.nav-links a {
  color: var(--text-main);
  opacity: .8;
  position: relative;
  transition: all 0.2s ease;
}

.nav-links a:hover {
  opacity: 1;
  color: var(--accent);
  transform: translateY(-1px);
}

@media(min-width:640px) {
  .nav-links {
    display: flex;
  }
}

.theme-toggle-btn {
  background-color: transparent;
  border: 1px solid var(--border-color);
  border-radius: .5rem;
  color: var(--text-main);
  font-size: .8rem;
  padding: .5rem .75rem;
  line-height: 1;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: .5rem;
  transition: all 0.2s ease;
}

.theme-toggle-btn:hover {
  background-color: var(--bg-card-solid);
  border-color: var(--accent);
}

.theme-toggle-btn:hover #themeIcon {
  animation: spin 0.5s ease-in-out;
}

@keyframes spin {
  0% {
    transform: rotate(0deg);
  }

  100% {
    transform: rotate(360deg);
  }
}

/* HERO */
.hero {
  display: grid;
  gap: 2rem;
}

@media(min-width:768px) {
  .hero {
    grid-template-columns: 1fr 1fr;
    align-items: center;
  }
}

.hero-left h1 {
  font-size: clamp(1.8rem, 1vw + 1.2rem, 2.4rem);
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -0.04em;
  color: var(--text-main);
  margin-bottom: 1rem;
}

.highlight {
  color: var(--accent);
  font-weight: 600;
}

.hero-left p {
  color: var(--text-dim);
  font-size: 1rem;
  max-width: 42ch;
  margin-bottom: 1.5rem;
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: .75rem;
}

.btn-primary {
  background: var(--accent);
  color: #0f172a;
  font-weight: 600;
  font-size: .9rem;
  border: 0;
  border-radius: .6rem;
  padding: .75rem 1rem;
  cursor: pointer;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.btn-primary:hover {
  transform: scale(1.05);
  box-shadow: 0 0 15px rgba(56, 189, 248, 0.4);
}

.btn-primary:active {
  transform: scale(0.95);
}

.btn-outline {
  background-color: transparent;
  border: 1px solid var(--border-color);
  color: var(--text-main);
  font-weight: 500;
  font-size: .9rem;
  border-radius: .6rem;
  padding: .75rem 1rem;
  cursor: pointer;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.btn-outline:hover {
  background-color: var(--bg-card-solid);
  transform: scale(1.05);
  border-color: var(--accent);
}

.btn-outline:active {
  transform: scale(0.95);
}

.hero-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 1rem;
  padding: 1.5rem;
  min-height: 200px;
  box-shadow: 0 30px 80px -10px rgba(0, 0, 0, 0.8);
  transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}

.hero-card:hover {
  transform: translateY(-5px);
  border-color: rgba(56, 189, 248, 0.3);
  box-shadow: 0 40px 100px -10px rgba(0, 0, 0, 0.9);
}

[data-theme="light"] .hero-card {
  box-shadow: 0 30px 80px -10px rgba(0, 0, 0, 0.15);
}

[data-theme="light"] .hero-card:hover {
  border-color: rgba(14, 165, 233, 0.3);
  box-shadow: 0 40px 100px -10px rgba(0, 0, 0, 0.2);
}

.hero-card h2 {
  font-size: .9rem;
  font-weight: 600;
  margin-bottom: .75rem;
  color: var(--text-main);
  letter-spacing: -0.03em;
}

.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
}

.tag {
  font-size: .7rem;
  background-color: var(--bg-card-solid);
  color: var(--text-main);
  border: 1px solid var(--border-color);
  border-radius: .5rem;
  padding: .4rem .6rem;
  line-height: 1;
  transition: all 0.2s ease;
  cursor: default;
}

.tag:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-2px);
}

/* SECTION HEADERS */
.section-header {
  margin-bottom: 2rem;
}

.section-eyebrow {
  font-size: .7rem;
  font-weight: 500;
  color: var(--accent);
  letter-spacing: .08em;
  text-transform: uppercase;
  margin-bottom: .5rem;
}

.section-title {
  color: var(--text-main);
  font-size: 1.4rem;
  font-weight: 600;
  letter-spacing: -0.04em;
  line-height: 1.2;
  margin-bottom: .5rem;
}

.section-desc {
  color: var(--text-dim);
  font-size: .9rem;
  max-width: 60ch;
}

/* ABOUT / CV */
.about-grid {
  display: grid;
  gap: 1.5rem;
}

@media(min-width:768px) {
  .about-grid {
    grid-template-columns: 2fr 1fr;
  }
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 1rem;
  padding: 1.5rem 1.25rem;
  box-shadow: 0 20px 60px -10px rgba(0, 0, 0, 0.7);
  transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
  transform: translateY(-5px);
  border-color: rgba(56, 189, 248, 0.2);
  box-shadow: 0 30px 70px -10px rgba(0, 0, 0, 0.8);
}

[data-theme="light"] .card {
  box-shadow: 0 20px 60px -10px rgba(0, 0, 0, 0.12);
}

[data-theme="light"] .card:hover {
  border-color: rgba(14, 165, 233, 0.2);
  box-shadow: 0 30px 70px -10px rgba(0, 0, 0, 0.18);
}

.about-text p {
  color: var(--text-dim);
  font-size: .9rem;
  margin-bottom: 1rem;
}

.cv-list {
  list-style: none;
  font-size: .9rem;
}

.cv-list li+li {
  margin-top: .75rem;
  padding-top: .75rem;
  border-top: 1px solid var(--border-color);
}

.cv-role {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: .25rem;
}

.cv-company {
  color: var(--text-dim);
  font-size: .8rem;
}

/* SKILLS */
.skills-grid {
  display: grid;
  gap: 1rem;
}

@media(min-width:480px) {
  .skills-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media(min-width:768px) {
  .skills-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

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

.skill-item {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: .75rem;
  padding: 1rem 1rem 1.25rem;
  transition: all 0.3s ease;
}

.skill-item:hover {
  transform: translateY(-3px) scale(1.02);
  border-color: var(--accent);
  background-color: var(--bg-card-solid);
}

.skill-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: .5rem;
}

.skill-name {
  font-size: .8rem;
  font-weight: 600;
  color: var(--text-main);
}

.skill-level {
  font-size: .7rem;
  color: var(--accent);
  font-weight: 500;
}

.skill-desc {
  color: var(--text-dim);
  font-size: .8rem;
  line-height: 1.4;
}

/* PROJECTS */
.projects-grid {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
}

.project-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 1rem;
  padding: 1.5rem;
  transition: all 0.3s ease;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 180px;
  position: relative;
  overflow: hidden;
}

.project-card:hover {
  transform: translateY(-5px);
  border-color: var(--accent);
  box-shadow: 0 30px 60px -10px rgba(0, 0, 0, 0.6);
}

[data-theme="light"] .project-card:hover {
  box-shadow: 0 30px 60px -10px rgba(0, 0, 0, 0.15);
}

.project-domain {
  font-size: .8rem;
  font-family: monospace;
  color: var(--accent);
  margin-bottom: .5rem;
  opacity: 0.8;
}

.project-title {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: .5rem;
  display: flex;
  align-items: center;
  gap: .5rem;
}

.project-desc {
  font-size: .9rem;
  color: var(--text-dim);
  line-height: 1.5;
  margin-bottom: 1.5rem;
}

.project-link {
  font-size: .85rem;
  font-weight: 600;
  color: var(--text-main);
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  margin-top: auto;
}

.project-link:hover {
  color: var(--accent);
  text-decoration: underline;
}

/* PRICING */
.pricing-wrap {
  display: grid;
  gap: 1.5rem;
}

@media(min-width:768px) {
  .pricing-wrap {
    grid-template-columns: repeat(3, 1fr);
  }
}

.price-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 1rem;
  padding: 1.5rem 1.25rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: all 0.3s ease;
  position: relative;
  /* for potential pseudo-elements */
}

.price-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 40px -5px rgba(0, 0, 0, 0.5);
  border-color: var(--accent);
}

[data-theme="light"] .price-card:hover {
  box-shadow: 0 20px 40px -5px rgba(0, 0, 0, 0.15);
}

.price-head {
  margin-bottom: 1rem;
}

.plan-name {
  font-size: .9rem;
  font-weight: 600;
  color: var(--text-main);
  display: flex;
  align-items: center;
  gap: .5rem;
}

.plan-desc {
  font-size: .8rem;
  color: var(--text-dim);
  line-height: 1.4;
  margin-top: .25rem;
}

.plan-price {
  margin-top: 1rem;
  font-size: 1.4rem;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: -0.04em;
}

.plan-features {
  list-style: none;
  font-size: .8rem;
  color: var(--text-dim);
  line-height: 1.4;
  margin-top: 1rem;
}

.plan-features li {
  display: flex;
  align-items: flex-start;
  gap: .5rem;
}

.plan-features li+li {
  margin-top: .5rem;
}

.check {
  font-weight: 600;
  color: var(--accent);
}

.price-cta {
  margin-top: 1.5rem;
}

.price-cta button {
  width: 100%;
}

/* CONTACT */
.contact-grid {
  display: grid;
  gap: 1.5rem;
}

@media(min-width:768px) {
  .contact-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.contact-left p {
  font-size: .9rem;
  color: var(--text-dim);
  max-width: 45ch;
  margin-bottom: 1rem;
}

form .field {
  display: flex;
  flex-direction: column;
  margin-bottom: 1rem;
}

.field label {
  font-size: .75rem;
  font-weight: 500;
  color: var(--text-main);
  margin-bottom: .4rem;
}

.field input,
.field textarea {
  width: 100%;
  background-color: var(--bg-card-solid);
  color: var(--text-main);
  border: 1px solid var(--border-color);
  border-radius: .6rem;
  font-size: .85rem;
  padding: .75rem .9rem;
  outline: none;
}

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

.field input:focus,
.field textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(56, 189, 248, .2);
}

[data-theme="light"] .field input:focus,
[data-theme="light"] .field textarea:focus {
  box-shadow: 0 0 0 3px rgba(14, 165, 233, .2);
}

.form-hint {
  font-size: .7rem;
  color: var(--text-dim);
  line-height: 1.4;
}

.footer {
  border-top: 1px solid var(--border-color);
  color: var(--text-dim);
  font-size: .75rem;
}

.footer-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 1rem 1rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer a {
  color: var(--accent);
}

/* UTIL */
.mt-2 {
  margin-top: .5rem;
}

.mt-3 {
  margin-top: .75rem;
}

.mt-4 {
  margin-top: 1rem;
}

/* TOAST (sağ alt uyarı kutusu) */
.toast-wrapper {
  position: fixed;
  right: 1rem;
  bottom: 1rem;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: .75rem;
}

@media(max-width:480px) {
  .toast-wrapper {
    left: 1rem;
    right: 1rem;
    bottom: 1rem;
  }
}

.toast {
  min-width: 240px;
  max-width: 320px;
  background-color: var(--toast-bg);
  color: var(--toast-text);
  border-radius: .75rem;
  border: 1px solid var(--toast-border-success);
  box-shadow: 0 25px 60px -10px rgba(0, 0, 0, .8);
  padding: .9rem 1rem;
  font-size: .8rem;
  line-height: 1.4;
  display: none;
}

.toast.error {
  border-color: var(--toast-border-error);
}

@media(max-width:480px) {
  .toast {
    min-width: auto;
    max-width: 100%;
  }
}

.toast-title {
  font-weight: 600;
  font-size: .8rem;
  margin-bottom: .25rem;
  letter-spacing: -0.03em;
}


/* TABLE STYLES */
.custom-table {
  width: 100%;
  border-collapse: collapse;
  font-size: .85rem;
  color: var(--text-main);
}

.custom-table thead th {
  text-align: left;
  padding: 1rem;
  font-weight: 600;
  color: var(--text-dim);
  border-bottom: 1px solid var(--border-color);
  background-color: var(--bg-card);
}

.custom-table tbody td {
  padding: .75rem 1rem;
  border-bottom: 1px solid var(--border-color);
  vertical-align: middle;
}

.custom-table tbody tr:hover {
  background-color: var(--bg-card-solid);
}

/* Status Colors */
.row-error td {
  background-color: rgba(239, 68, 68, 0.1);
}

.row-warning td {
  background-color: rgba(245, 158, 11, 0.1);
}

.row-success td {
  background-color: rgba(16, 185, 129, 0.1);
}

/* Pagination */
.pagination-container {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 1rem;
  margin-top: 2rem;
}

.pagination-container .disabled {
  opacity: 0.5;
  pointer-events: none;
}

.toast-msg {
  font-size: .75rem;
  opacity: .9;
}

/* CONSENT MODAL */
.consent-overlay {
  position: fixed;
  inset: 0;
  background-color: rgba(0, 0, 0, .6);
  backdrop-filter: blur(4px);
  z-index: 10000;
  display: none;
  /* JS ile açılacak */
  align-items: center;
  justify-content: center;
  padding: 1rem;
}

[data-theme="light"] .consent-overlay {
  background-color: rgba(0, 0, 0, .3);
}

.consent-modal {
  background-color: var(--bg-card-solid);
  border-radius: 1rem;
  border: 1px solid var(--border-color);
  max-width: 380px;
  width: 100%;
  box-shadow: 0 30px 80px -10px rgba(0, 0, 0, 0.8);
  padding: 1.5rem 1.25rem;
  color: var(--text-main);
}

[data-theme="light"] .consent-modal {
  box-shadow: 0 30px 80px -10px rgba(0, 0, 0, 0.2);
}

.consent-title {
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: -0.04em;
  line-height: 1.2;
  margin-bottom: .75rem;
  color: var(--text-main);
}

.consent-text {
  font-size: .8rem;
  color: var(--text-dim);
  line-height: 1.4;
}

.consent-actions {
  display: flex;
  flex-wrap: wrap;
  gap: .75rem;
  margin-top: 1.5rem;
}

.btn-consent {
  flex: 1;
  text-align: center;
  font-size: .8rem;
  font-weight: 600;
  border-radius: .6rem;
  padding: .75rem 1rem;
  cursor: pointer;
  border: 0;
}

.btn-consent-primary {
  background: var(--accent);
  color: #0f172a;
}

.btn-consent-muted {
  background: transparent;
  color: var(--text-main);
  border: 1px solid var(--border-color);
}

.btn-consent-muted:hover {
  background-color: var(--bg-card);
}

/* SOCIAL CARDS */
.social-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  gap: .75rem;
  margin-top: 1rem;
}

.social-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: .75rem;
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: .75rem;
  color: var(--text-dim);
  font-size: .75rem;
  font-weight: 500;
  transition: all .2s ease;
  text-align: center;
  gap: .25rem;
  text-decoration: none;
}

.social-card:hover {
  background-color: var(--bg-card-solid);
  border-color: var(--accent);
  color: var(--text-main);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

[data-theme="light"] .social-card:hover {
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.social-card strong {
  color: var(--text-main);
  font-weight: 600;
  font-size: .85rem;
  display: block;
}

.social-card span {
  opacity: .8;
}

/* 3D CANVAS */
#canvas-container {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  overflow: hidden;
  opacity: 0.6;
}

.hero {
  position: relative;
  /* Hero is transparent now so 3D shows through */
}

/* SCROLL REVEAL ANIMATIONS */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.8s ease-out;
}

.reveal.active {
  opacity: 1;
  transform: translateY(0);
}

/* ACTIVE LINK HIGHLIGHT */
.nav-links a.active {
  color: var(--accent);
  font-weight: 600;
}