:root {
  /* ── Color Palette ── */

  /* Primary */
  --color-primary-900: #000033;
  --color-primary-800: #001a66;
  --color-primary-700: #0033cc;
  --color-primary-600: #0052ff;
  --color-primary-500: #0066ff;
  --color-primary-400: #3385ff;
  --color-primary-300: #80b3ff;
  --color-primary-200: #b3d9ff;
  --color-primary-100: #e6f2ff;

  /* Neutral */
  --color-neutral-900: #0f172a;
  --color-neutral-800: #1e293b;
  --color-neutral-700: #334155;
  --color-neutral-600: #475569;
  --color-neutral-500: #64748b;
  --color-neutral-400: #94a3b8;
  --color-neutral-300: #cbd5e1;
  --color-neutral-200: #e2e8f0;
  --color-neutral-100: #f1f5f9;

  /* ── Semantic Tokens ── */

  --glow-secondary: 217 80% 65%;
  --background: 210 40% 98%;

  --color-accent: var(--color-primary-500);
  --color-primary-dark: var(--color-primary-700);

  --bg-page: var(--color-neutral-200);
  --bg-card: white;
  --bg-tag: var(--color-primary-100);

  --text-primary: var(--color-neutral-900);
  --text-secondary: var(--color-neutral-800);
  --text-body: var(--color-neutral-700);
  --text-muted: var(--color-neutral-500);
  --text-footer: var(--color-neutral-600);

  --border-card: var(--color-neutral-300);

  --font-family: "Arial", sans-serif;
  --font-heading: "Arial Black", "Arial Bold", sans-serif;

  --spacing-sm: 8px;
  --spacing-md: 16px;
  --spacing-lg: 32px;
  --spacing-xl: 48px;

  --gap-sm: 24px;

  --container-width: 1152px;

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-circle: 50%;

  --shadow-card: 0px 25px 50px 0px rgba(0, 0, 0, 0.05);
  --shadow-sm: 0px 4px 10px 0px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
}

/* ========================================
   RESET & BASE STYLES
   ======================================== */

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  background: hsl(var(--background));
  color: var(--color-primary-dark);
  line-height: 1.5;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

footer {
  margin-top: auto;
}

/* ========================================
   TYPOGRAPHY
   ======================================== */

h1 {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 48px;
  line-height: 1.1;
  color: var(--text-primary);
  margin-bottom: var(--spacing-md);
  letter-spacing: -1px;
}

h2 {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 32px;
  line-height: 1.2;
  color: var(--text-primary);
  margin-bottom: var(--spacing-md);
}

h3 {
  font-family: var(--font-family);
  font-weight: 600;
  font-size: 22px;
  line-height: 1.3;
  color: var(--text-secondary);
  margin-bottom: var(--spacing-md);
}

p {
  font-size: 16px;
  line-height: 1.5;
  color: var(--text-body);
  margin-bottom: var(--spacing-md);
}

a {
  text-decoration: none;
  color: var(--text-body);
}

ul {
  list-style: none;
}

img {
  height: auto;
  width: auto;
  display: block;
  max-height: 40vh;
}

/* ========================================
   LAYOUT & CONTAINERS
   ======================================== */

.container {
  max-width: var(--container-width);
  margin: auto;
  margin-top: var(--spacing-xl);
  padding: var(--spacing-xl);
}

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

section {
  justify-items: center;
  display: flex;
}

.section-card {
  padding: var(--spacing-lg);
  margin: auto;
}

/* Section Labels */
.label {
  font-family: var(--font-family);
  font-weight: 700;
  font-size: 12px;
  line-height: 16px;
  color: var(--color-accent);
  letter-spacing: 1.5px;
  text-transform: uppercase;
  margin-bottom: var(--spacing-md);
  display: block;
}

/* ========================================
   UTILITY CLASSES
   ======================================== */

/* Animation delays */
.delay-200 { animation-delay: 200ms; }
.delay-300 { animation-delay: 300ms; }
.delay-400 { animation-delay: 400ms; }
.delay-500 { animation-delay: 500ms; }

/* Background mesh gradient overlay */
.mesh-gradient {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image:
    radial-gradient(at 20% 20%, hsl(var(--color-accent) / 0.04) 0%, transparent 50%),
    radial-gradient(at 80% 80%, hsl(var(--glow-secondary) / 0.03) 0%, transparent 50%),
    radial-gradient(at 50% 50%, hsl(var(--color-accent) / 0.02) 0%, transparent 70%);
}

/* ========================================
   NAVIGATION BAR
   ======================================== */

#navbar-placeholder {
  position: sticky;
  top: 0;
  z-index: 100;
}

.navbar {
  background-color: var(--bg-card);
  border-bottom: 1px solid var(--border-card);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow-sm);
}

.nav-container {
  max-width: var(--container-width);
  margin: 0 auto;
  height: 70px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-lg);
}

.logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  font-size: 18px;
  color: var(--text-primary);
}

.logo i {
  font-size: 16px;
  padding: var(--spacing-sm);
  border: 2px solid var(--text-primary);
  border-radius: var(--radius-sm);
  transition: color 0.3s ease;
}

.logo i:hover {
  color: var(--color-accent);
}

.nav-menu {
  display: flex;
  gap: 32px;
}

.nav-menu a {
  font-size: 16px;
  color: var(--text-body);
  position: relative;
}

.nav-menu a::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 2px;
  background-color: var(--color-accent);
  transition: all 0.3s ease;
  transform: translateX(-50%);
}

.nav-menu a:hover::after,
.nav-menu a.active::after {
  width: 100%;
}

.nav-menu a:hover,
.nav-menu a.active {
  color: var(--color-primary-dark);
}

.nav-menu a.active {
  font-weight: 600;
}

/* ========================================
   HERO SECTION
   ======================================== */

.hero-section {
  min-height: 90vh;
  display: flex;
  align-items: center;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: var(--spacing-xl);
  align-items: center;
}

.hero-content {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

.hero-title {
  font-size: clamp(36px, 5vw, 64px);
  line-height: 1.1;
  margin: 0;
}

.hero-description {
  font-size: 16px;
  color: var(--text-body);
  line-height: 1.7;
  max-width: 480px;
  margin: 0;
}

.hero-actions {
  display: flex;
  gap: var(--spacing-md);
  flex-wrap: wrap;
}

.hero-footer {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  flex-wrap: wrap;
}

.hero-divider {
  color: var(--text-muted);
  font-size: 18px;
}

.hero-stack-label {
  font-size: 13px;
  color: var(--text-muted);
  font-weight: 500;
}

.hero-image-wrap {
  position: relative;
  display: flex;
  justify-content: center;
}

.hero-image-frame {
  width: auto;
  max-width: 420px;
  border-radius: var(--radius-md);
  overflow: hidden;
  aspect-ratio: 4 / 5;
}

.hero-photo {
  width: auto;
  height: auto;
  max-width: 360px;
  object-fit: cover;
  object-position: top;
  display: block;
}

.hero-badge {
  position: absolute;
  bottom: -16px;
  left: -16px;
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-md);
  padding: var(--spacing-md) var(--spacing-lg);
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 700;
  color: var(--text-primary);
}

.hero-badge i {
  color: var(--color-accent);
  font-size: 16px;
}

@media (max-width: 900px) {
  .hero-section {
    min-height: auto;
    padding: var(--spacing-xl) 0;
  }

  .hero-grid {
    grid-template-columns: 1fr;
  }

  .hero-image-wrap {
    order: -1;
  }

  .hero-image-frame {
    max-width: 280px;
    aspect-ratio: 1 / 1;
    border-radius: var(--radius-circle);
  }

  .hero-badge {
    bottom: -12px;
    left: auto;
    right: 16px;
  }
}

/* ========================================
   SKILLS SECTION
   ======================================== */

.skills-groups {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xl);
  margin-top: var(--spacing-xl);
}

.skill-group-label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: var(--spacing-md);
}

.skill-group-label i {
  color: var(--color-accent);
  font-size: 13px;
}

.skill-cards-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--gap-sm);
}

.skill-card {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-md);
  padding: var(--spacing-lg);
  border-radius: var(--radius-md);
  transition: border-color 0.2s, box-shadow 0.2s;
}

.skill-card-icon {
  width: 40px;
  height: 40px;
  background: var(--color-primary-100);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.skill-card-icon i {
  font-size: 20px;
  color: var(--color-accent);
}

.skill-card-info {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.skill-card-info strong {
  font-size: 14px;
  font-weight: 700;
  color: var(--text-primary);
}

.skill-card-info span {
  font-size: 12px;
  color: var(--text-muted);
  line-height: 1.5;
}

@media (max-width: 900px) {
  .skill-cards-row {
    grid-template-columns: 1fr;
  }
}

/* ========================================
   PROJECTS SECTION
   ======================================== */

.projects-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--gap-sm);
  margin-top: var(--spacing-lg);
}

.project-card {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  transition: box-shadow 0.2s, transform 0.2s, border-color 0.2s;
  overflow: hidden;
}

.project-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.project-card--featured {
  border-left: 3px solid var(--color-accent);
}

.project-card-inner {
  padding: var(--spacing-lg);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  height: 100%;
}

.project-card-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--spacing-md);
}

.project-title {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0;
  line-height: 1.2;
}

.featured-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background: var(--color-primary-100);
  color: var(--color-accent);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.5px;
  padding: 4px 10px;
  border-radius: 999px;
  white-space: nowrap;
  flex-shrink: 0;
}

.featured-badge i {
  font-size: 10px;
}

.project-description {
  font-size: 14px;
  color: var(--text-body);
  line-height: 1.7;
  margin: 0;
  flex: 1;
}

.tech-stack {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.tech-tag {
  background: var(--color-primary-100);
  color: var(--color-accent);
  font-size: 12px;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 999px;
}

.project-actions {
  display: flex;
  gap: var(--spacing-md);
  align-items: center;
  margin-top: auto;
  padding-top: var(--spacing-md);
  border-top: 1px solid var(--color-neutral-100);
}

.btn-outline {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: var(--spacing-sm) var(--spacing-md);
  border: 1.5px solid var(--color-accent);
  border-radius: var(--radius-sm);
  color: var(--color-accent);
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  transition: background 0.2s, color 0.2s;
  background: transparent;
}

.btn-outline:hover {
  background: var(--color-primary-100);
}

.project-btn {
  font-size: 14px;
  padding: var(--spacing-sm) var(--spacing-md);
}

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

/* ========================================
   BUTTONS (base styles used in hero & modal)
   ======================================== */

.btn-primary {
  background-color: var(--color-accent);
  color: var(--bg-card);
  font-family: var(--font-family);
  font-weight: 700;
  font-size: 14px;
  padding: var(--spacing-md);
  height: 48px;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  transition: background-color 0.3s ease, transform 0.3s;
}

.btn-secondary {
  background-color: transparent;
  color: var(--text-body);
  font-family: var(--font-family);
  font-weight: 600;
  font-size: 14px;
  padding: 0;
  height: auto;
  border: none;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  transition: color 0.2s ease;
}

/* Loading state for buttons */
.btn-primary.loading,
.btn-submit.loading {
  position: relative;
  pointer-events: none;
  opacity: 0.7;
}

.btn-primary.loading::after,
.btn-submit.loading::after {
  content: "";
  position: absolute;
  width: 16px;
  height: 16px;
  top: 50%;
  right: 12px;
  margin-top: -8px;
  border: 2px solid transparent;
  border-top-color: currentColor;
  border-radius: 50%;
  animation: button-spinner 0.6s linear infinite;
}

@keyframes button-spinner {
  to {
    transform: rotate(360deg);
  }
}


/* ========================================
   CONTACT MODAL
   ======================================== */

.modal {
  display: none;
  position: fixed;
  z-index: 2000;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
  overflow-y: auto;
  padding: var(--spacing-lg);
  box-sizing: border-box;
  align-items: flex-start;
  justify-content: center;
}

.modal.is-open {
  display: flex;
}

.modal-content {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  width: 100%;
  max-width: 520px;
  overflow: hidden;
  animation: modalSlideIn 0.25s ease;
  margin: auto;
}

@keyframes modalSlideIn {
  from {
    opacity: 0;
    transform: translateY(-16px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: var(--spacing-md);
  padding: var(--spacing-xl) var(--spacing-xl) var(--spacing-lg);
  border-bottom: 1px solid var(--border-card);
}

.modal-title {
  font-size: 24px;
  color: var(--text-primary);
  margin: var(--spacing-sm) 0 0;
  line-height: 1.2;
}

.modal-description {
  font-size: 14px;
  color: var(--text-muted);
  margin: var(--spacing-sm) 0 0;
  line-height: 1.6;
}

.modal-close-btn {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-card);
  background: none;
  color: var(--text-muted);
  font-size: 16px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: all 0.2s;
}

.modal-close-btn:hover {
  background: var(--color-neutral-100);
  color: var(--text-primary);
  border-color: var(--text-muted);
}

.modal-body {
  padding: var(--spacing-lg) var(--spacing-xl);
}

.form-group {
  margin-bottom: var(--spacing-lg);
}

.form-label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: var(--spacing-sm);
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: var(--spacing-md);
  border: 1.5px solid var(--color-neutral-200);
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-family: inherit;
  color: var(--text-primary);
  background: var(--bg-card);
  transition: border-color 0.2s, box-shadow 0.2s;
  box-sizing: border-box;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px var(--color-primary-100);
}

.form-group input.error,
.form-group textarea.error {
  border-color: #ef4444;
}

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

.form-error {
  display: block;
  font-size: 12px;
  color: #ef4444;
  margin-top: 6px;
  min-height: 16px;
}

.modal-footer {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  padding-top: var(--spacing-lg);
  border-top: 1px solid var(--border-card);
  margin-top: var(--spacing-lg);
}

.btn-cancel {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 14px;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-sm);
  transition: color 0.2s;
}

.btn-cancel:hover {
  color: var(--text-primary);
}

#formStatus {
  margin-top: var(--spacing-md);
  font-size: 14px;
  border-radius: var(--radius-sm);
  padding: var(--spacing-md);
}

#formStatus.success {
  background: #d1fae5;
  color: #065f46;
  border: 1px solid #a7f3d0;
}

#formStatus.error {
  background: #fee2e2;
  color: #991b1b;
  border: 1px solid #fecaca;
}

/* ========================================
   FOOTER
   ======================================== */

.footer {
  text-align: center;
  background-color: var(--bg-card);
  border-top: 1px solid var(--border-card);
}

.footer-title {
  color: var(--text-secondary);
}

.footer-email {
  font-size: 18px;
  color: var(--color-accent);
  text-decoration: underline;
  margin-bottom: var(--spacing-md);
  display: inline-block;
}

.footer-social {
  display: flex;
  justify-content: center;
  gap: 16px;
  margin-bottom: var(--spacing-md);
}

.footer-copyright {
  font-size: 14px;
  color: var(--text-footer);
}

/* ========================================
   PROJECT DETAIL PAGES
   ======================================== */

.project-header .container {
  display: flex;
  flex-direction: column;
  padding: var(--spacing-xl);
  margin-top: var(--spacing-lg);
  border-bottom: 1px solid var(--border-card);
}

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--text-secondary);
  font-weight: 500;
  margin-bottom: var(--spacing-md);
  align-self: flex-start;
}

#backToTop {
  display: none;
  position: fixed;
  bottom: 30px;
  right: 30px;
  z-index: 99;
  border: none;
  outline: none;
  background-color: var(--color-primary-600);
  color: var(--bg-card);
  cursor: pointer;
  padding: var(--spacing-md);
  border-radius: var(--radius-circle);
  font-size: 18px;
  box-shadow: var(--shadow-md);
  transition: background-color 0.3s, transform 0.2s;
}

.overview-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}

.overview-card {
  background: var(--bg-card);
  padding: var(--spacing-lg);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-card);
  box-shadow: var(--shadow-sm);
  margin-top: var(--spacing-lg);
}

.card-icon-wrap {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background: var(--color-primary-100);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--spacing-md);
}

.card-icon-wrap i {
  font-size: 20px;
  color: var(--color-accent);
}

.card-label {
  display: block;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1.5px;
  color: var(--color-accent);
  margin-bottom: var(--spacing-sm);
}

.overview-card h3 {
  font-size: 22px;
  margin-bottom: var(--spacing-md);
}

.overview-card p {
  margin-bottom: var(--spacing-md);
  color: var(--text-body);
  line-height: 1.7;
}

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

/* App Window / Showcase */
.app-window {
  background: #ffffff;
  border: 1px solid var(--color-neutral-200);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  max-width: var(--container-width);
  width: 100%;
  margin: 0 auto;
  overflow: hidden;
  position: relative;
  padding-top: var(--spacing-xl);
}

.app-window::before {
  content: "";
  position: absolute;
  top: 20px;
  left: 50%;
  transform: translateX(-50%);
  width: 12px;
  height: 12px;
  border-radius: var(--radius-circle);
  background-color: #ffbd2e;
  box-shadow: -24px 0 0 #ff5f56, 24px 0 0 #27c93f;
}

.app-window img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* ========================================
   PROJECT FEATURE SECTIONS
   ======================================== */

.project-header-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-xl);
  align-items: start;
  margin-top: var(--spacing-lg);
}

.project-header-text .project-main-title {
  margin-top: var(--spacing-sm);
  margin-bottom: var(--spacing-md);
}

.project-tagline {
  color: var(--text-body);
  font-size: 16px;
  line-height: 1.7;
  margin-bottom: 0;
}

.project-header-stats {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  padding-top: var(--spacing-md);
}

.stat-pill {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  padding: var(--spacing-md);
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-sm);
}

.stat-pill > i {
  font-size: 18px;
  color: var(--color-accent);
  width: 24px;
  flex-shrink: 0;
  text-align: center;
}

.stat-pill div {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.stat-pill-label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--text-muted);
}

.stat-pill-value {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
}

.stat-pill-link {
  color: var(--color-accent);
  text-decoration: none;
  transition: opacity 0.2s;
}

.stat-pill-link:hover {
  opacity: 0.7;
}

/* ── Solution List (used in overview cards) ───────────────────── */
.solution-list {
  padding-left: var(--spacing-md);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  margin: 0;
}

.solution-list li {
  color: var(--text-body);
  line-height: 1.7;
  padding-left: var(--spacing-sm);
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.solution-list li strong {
  color: var(--text-primary);
  font-size: 14px;
}

.solution-list li span {
  font-size: 14px;
  color: var(--text-muted);
}

/* ── Feature Layout ───────────────────────────────────────────── */
.feature-layout {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: var(--spacing-xl);
  align-items: center;
}

.feature-text p {
  color: var(--text-body);
  line-height: 1.7;
  margin-bottom: var(--spacing-lg);
}

.feature-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.feature-list li {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-md);
}

.feature-list li i {
  font-size: 16px;
  color: var(--color-accent);
  margin-top: 3px;
  flex-shrink: 0;
  width: 20px;
}

.feature-list li div {
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.feature-list li strong {
  font-size: 14px;
  font-weight: 700;
  color: var(--text-primary);
}

.feature-list li span {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.5;
}

.feature-image {
  width: 100%;
}

.feature-image .app-window {
  width: 100%;
  border-radius: var(--radius-md);
  overflow: hidden;
}

.feature-image img {
  width: 100%;
  height: auto;
  display: block;
}

.challenge-callout {
  background: var(--color-primary-100);
  border-left: 3px solid var(--color-accent);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  padding: var(--spacing-md) var(--spacing-lg);
  margin: var(--spacing-lg) 0;
}

.challenge-callout-header {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: var(--spacing-sm);
}

.challenge-callout-header i {
  color: var(--color-accent);
  font-size: 14px;
}

.challenge-callout-header span {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--color-accent);
}

.challenge-callout p {
  font-size: 14px;
  color: var(--text-body);
  line-height: 1.7;
  margin: 0;
}

.image-caption {
  font-size: 12px;
  color: var(--text-muted);
  text-align: center;
  margin-top: var(--spacing-md);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  font-style: italic;
}

.image-caption i {
  color: var(--color-accent);
  font-size: 12px;
}

.feature-layout-reverse {
  grid-template-columns: 1.4fr 1fr;
}

.features-heading {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: var(--spacing-md);
}

.feature-pills-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.feature-pills-list li {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-md);
  padding: var(--spacing-md);
  background: var(--color-neutral-100);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-card);
  transition: border-color 0.2s, box-shadow 0.2s;
}

.feature-pills-list li:hover {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-sm);
}

.feature-pills-list li i {
  font-size: 16px;
  color: var(--color-accent);
  margin-top: 3px;
  flex-shrink: 0;
  width: 20px;
}

.feature-pills-list li div {
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.feature-pills-list li strong {
  font-size: 14px;
  font-weight: 700;
  color: var(--text-primary);
}

.feature-pills-list li span {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.5;
}

.challenges-header {
  margin-bottom: var(--spacing-xl);
}

.challenges-subtitle {
  color: var(--text-muted);
  font-size: 15px;
  margin-top: var(--spacing-sm);
  margin-bottom: 0;
}

.challenges-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--gap-sm);
}

.challenge-card {
  padding: var(--spacing-lg);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.challenge-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.challenge-number {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 2px;
  color: var(--color-accent);
  opacity: 0.5;
  font-family: var(--font-heading);
}

.challenge-icon {
  width: 40px;
  height: 40px;
  background: var(--color-primary-100);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
}

.challenge-icon i {
  font-size: 18px;
  color: var(--color-accent);
}

.challenge-card h3 {
  font-size: 17px;
  margin: 0;
  color: var(--text-primary);
}

.challenge-description {
  font-size: 14px;
  color: var(--text-body);
  line-height: 1.7;
  margin: 0;
  flex: 1;
}

.challenge-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: auto;
}

.project-feature {
  margin-bottom: var(--spacing-xl);
  padding: var(--spacing-xl);
}

.available-features {
  padding: var(--spacing-md);
  margin-bottom: var(--spacing-md);
  border-top: 1px solid var(--border-card);
}

/* ========================================
   HOVER EFFECTS & INTERACTIONS
   ======================================== */

.glow-float-card {
  transition:
    transform 0.5s cubic-bezier(0.165, 0.84, 0.44, 1),
    box-shadow 0.5s cubic-bezier(0.165, 0.84, 0.44, 1);
  will-change: transform;
  background: var(--bg-card);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.glow-float-card:hover,
.hover-trigger:hover .glow-float-card {
  transform: translateY(-5px);
  box-shadow:
    0 10px 20px rgba(0, 0, 0, 0.05),
    0 0 15px var(--color-primary-300);
}

.simple-float-card {
  background-color: var(--bg-card);
  padding: var(--spacing-lg);
  transition:
    transform 0.5s cubic-bezier(0.165, 0.84, 0.44, 1),
    box-shadow 0.5s cubic-bezier(0.165, 0.84, 0.44, 1);
  will-change: transform;
}

.simple-float-card:hover,
.hover-trigger:hover .simple-float-card {
  transform: translateY(-8px);
  box-shadow:
    0 10px 25px -5px rgba(0, 0, 0, 0.1),
    0 8px 10px -6px rgba(0, 0, 0, 0.05);
}

.hover-trigger:hover .glow-float-card:nth-child(2),
.hover-trigger:hover .simple-float-card:nth-child(2) { transition-delay: 0.05s; }

.hover-trigger:hover .glow-float-card:nth-child(3),
.hover-trigger:hover .simple-float-card:nth-child(3) { transition-delay: 0.1s; }

.hover-trigger:hover .glow-float-card:nth-child(4),
.hover-trigger:hover .simple-float-card:nth-child(4) { transition-delay: 0.15s; }

.hover-trigger:hover .glow-float-card:nth-child(5),
.hover-trigger:hover .simple-float-card:nth-child(5) { transition-delay: 0.2s; }

.hover-trigger:hover .glow-float-card:nth-child(6),
.hover-trigger:hover .simple-float-card:nth-child(6) { transition-delay: 0.25s; }

.btn-primary:hover {
  background-color: var(--color-primary-dark);
  border-radius: var(--radius-sm);
  transform: translateY(-1px);
}

.btn-primary:active {
  transform: translateY(0);
}

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

.social-icon {
  transition: color 0.2s ease, transform 0.2s ease;
}

.social-icon:hover {
  color: var(--color-primary-dark);
  transform: translateY(-3px);
}


  /* Gradient overlay that follows the mouse */
.project-card::before {
  content: "";
  position: absolute;
  inset: 0;
  opacity: 0;
  background: radial-gradient(
    200px circle at var(--mouse-x, 50%) var(--mouse-y, 50%),
    rgba(59, 130, 246, 0.15),
    transparent 60%
  );
  pointer-events: none;
  border-radius: inherit;
  transition: opacity 0.5s;
}

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

/* Gradient overlay that follows the mouse */
.skill-card::before {
  content: "";
  position: absolute;
  inset: 0;
  opacity: 0;
  background: radial-gradient(
    200px circle at var(--mouse-x, 50%) var(--mouse-y, 50%),
    rgba(59, 130, 246, 0.15),
    transparent 60%
  );
  pointer-events: none;
  transition: opacity 0.5s;
}

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


/* ========================================
   ANIMATIONS
   ======================================== */

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(-5px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.reveal {
  opacity: 0;
  animation-fill-mode: forwards;
}

.reveal.is-visible {
  animation: fadeInUp 0.8s cubic-bezier(0.22, 1, 0.36, 1) forwards;
}

/* ========================================
   ADMIN NAVBAR
   ======================================== */
.admin-navbar {
  background: var(--bg-card);
  border-bottom: 1px solid var(--border-card);
  margin-bottom: var(--spacing-lg);
}

.nav-menu li.active a {
  color: var(--color-accent);
  font-weight: 600;
}

.nav-menu li.active a::after {
  width: 100%;
}

/* Password toggle wrapper */
.password-wrapper {
  position: relative;
  width: 100%;
}

.password-wrapper .form-input {
  width: 100%;
  padding-right: 40px;
}

.toggle-password {
  position: absolute;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-muted);
  font-size: 16px;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: color 0.2s;
}

.toggle-password:hover {
  color: var(--color-accent);
}

/* ========================================
   RESPONSIVE
   ======================================== */

@media (max-width: 900px) {
  .hero-grid {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero-description {
    margin-left: auto;
    margin-right: auto;
  }

  .social-links {
    justify-content: center;
  }

  .project-card {
    flex: 1 1 100%;
    text-align: left;
  }


  .tech-stack {
    justify-content: center;
  }

  .nav-menu {
    display: none;
  }

  .modal-content {
    margin: var(--spacing-md) auto;
    padding: var(--spacing-lg);
  }

  .overview-grid {
    grid-template-columns: 1fr;
  }

  .project-feature .container .section-card,
  #project-feature-3 .section-card {
    flex-direction: column;
  }

  .app-window img {
    width: 100%;
  }

  .feature-layout {
    grid-template-columns: 1fr;
  }

  .feature-image {
    order: -1;
  }

  .feature-layout-reverse {
    grid-template-columns: 1fr;
  }

  .challenges-grid {
    grid-template-columns: 1fr;
  }

  .project-header-content {
    grid-template-columns: 1fr;
  }

  .project-header-stats {
    padding-top: 0;
  }
}