/* ========================================
   Mahmoud Fares Naguib - Portfolio
   Apple-inspired modern design
   ======================================== */

/* CSS Custom Properties */
:root {
  --color-bg: #fbfbfd;
  --color-bg-alt: #f2f2f7;
  --color-text: #1d1d1f;
  --color-text-secondary: #515154;
  --color-accent: #0071e3;
  --color-accent-hover: #0077ed;
  --color-border: #e5e5ea;
  --color-card-bg: #ffffff;
  --color-card-hover: #f5f5f7;
  --color-nav-bg: rgba(251, 251, 253, 0.8);
  --color-tag-bg: #e8e8ed;
  --color-tag-text: #1d1d1f;
  --color-input-bg: #ffffff;
  --color-input-border: #d1d1d6;
  --shadow-sm: 0 1px 4px rgba(0, 0, 0, 0.04), 0 0 1px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.06), 0 1px 3px rgba(0, 0, 0, 0.04);
  --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.08), 0 2px 8px rgba(0, 0, 0, 0.04);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Segoe UI', sans-serif;
  --transition: 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --max-width: 1120px;
}

[data-theme="dark"] {
  --color-bg: #000000;
  --color-bg-alt: #1c1c1e;
  --color-text: #f5f5f7;
  --color-text-secondary: #a1a1a6;
  --color-accent: #0a84ff;
  --color-accent-hover: #409cff;
  --color-border: #38383a;
  --color-card-bg: #1c1c1e;
  --color-card-hover: #2c2c2e;
  --color-nav-bg: rgba(0, 0, 0, 0.72);
  --color-tag-bg: #2c2c2e;
  --color-tag-text: #f5f5f7;
  --color-input-bg: #1c1c1e;
  --color-input-border: #38383a;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.4);
}

/* Reset */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-bg);
  transition: background-color var(--transition), color var(--transition);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

ul {
  list-style: none;
}

/* Container */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* ========================================
   Navigation
   ======================================== */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: var(--color-nav-bg);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid var(--color-border);
  transition: background var(--transition), border-color var(--transition);
}

.nav__container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav__logo {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.5px;
  color: var(--color-text);
  transition: color var(--transition);
}

.nav__links {
  display: flex;
  gap: 32px;
}

.nav__link {
  font-size: 14px;
  font-weight: 400;
  color: var(--color-text-secondary);
  transition: color var(--transition);
  position: relative;
}

.nav__link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-accent);
  transition: width var(--transition);
}

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

.nav__link:hover::after {
  width: 100%;
}

.nav__theme-toggle {
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition);
  color: var(--color-text);
}

.nav__theme-toggle:hover {
  background: var(--color-tag-bg);
}

.nav__theme-icon {
  width: 20px;
  height: 20px;
}

.nav__theme-icon--moon { display: none; }

[data-theme="dark"] .nav__theme-icon--sun { display: none; }
[data-theme="dark"] .nav__theme-icon--moon { display: block; }

.nav__mobile-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  flex-direction: column;
  gap: 5px;
}

.nav__mobile-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-text);
  transition: all var(--transition);
  border-radius: 2px;
}

.nav__mobile-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}
.nav__mobile-toggle.active span:nth-child(2) {
  opacity: 0;
}
.nav__mobile-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* Mobile Menu */
.mobile-menu {
  display: none;
  position: fixed;
  top: 52px;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--color-bg);
  z-index: 999;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 24px;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition);
}

.mobile-menu.active {
  opacity: 1;
  pointer-events: all;
}

.mobile-menu__link {
  font-size: 24px;
  font-weight: 600;
  color: var(--color-text);
  transition: color var(--transition);
}

.mobile-menu__link:hover {
  color: var(--color-accent);
}

@media (max-width: 768px) {
  .nav__links { display: none; }
  .nav__mobile-toggle { display: flex; }
  .mobile-menu { display: flex; }
}

/* ========================================
   Hero Section
   ======================================== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  padding: 120px 24px 40px;
  overflow: hidden;
}

.hero__bg-gradient {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 20% 50%, rgba(0, 113, 227, 0.07) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 20%, rgba(0, 113, 227, 0.04) 0%, transparent 50%),
    radial-gradient(ellipse at 50% 90%, rgba(88, 86, 214, 0.04) 0%, transparent 50%);
  pointer-events: none;
}

[data-theme="dark"] .hero__bg-gradient {
  background:
    radial-gradient(ellipse at 20% 50%, rgba(10, 132, 255, 0.1) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 20%, rgba(10, 132, 255, 0.06) 0%, transparent 50%),
    radial-gradient(ellipse at 50% 80%, rgba(94, 92, 230, 0.06) 0%, transparent 50%);
}

.hero__content {
  text-align: center;
  max-width: 680px;
  position: relative;
  z-index: 1;
}

.hero__avatar {
  width: 140px;
  height: 140px;
  margin: 0 auto 32px;
  border-radius: 50%;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  border: 3px solid var(--color-border);
  transition: transform 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94), box-shadow 0.5s;
}

.hero__avatar:hover {
  transform: scale(1.05);
  box-shadow: 0 12px 40px rgba(0, 122, 255, 0.2);
}

.hero__avatar-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero__name {
  font-size: 48px;
  font-weight: 700;
  letter-spacing: -1.5px;
  line-height: 1.1;
  margin-bottom: 8px;
  background: linear-gradient(135deg, var(--color-text) 0%, var(--color-text-secondary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero__title {
  font-size: 20px;
  font-weight: 500;
  color: var(--color-accent);
  margin-bottom: 20px;
  letter-spacing: -0.3px;
}

.hero__tagline {
  font-size: 17px;
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin-bottom: 36px;
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
}

.hero__cta {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 40px;
}

.hero__socials {
  display: flex;
  gap: 20px;
  justify-content: center;
  margin-bottom: 20px;
}

.hero__socials a {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  color: var(--color-text-secondary);
  transition: all var(--transition);
}

.hero__socials a:hover {
  color: var(--color-accent);
  background: var(--color-tag-bg);
  transform: translateY(-2px);
}

.hero__socials svg {
  width: 20px;
  height: 20px;
}

.hero__scroll-indicator {
  position: absolute;
  bottom: 5px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--color-text-secondary);
  font-size: 12px;
  letter-spacing: 2px;
  text-transform: uppercase;
}

.hero__scroll-line {
  width: 1px;
  height: 40px;
  background: var(--color-border);
  position: relative;
  overflow: hidden;
}

.hero__scroll-line::after {
  content: '';
  position: absolute;
  top: -100%;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--color-accent);
  animation: scrollLine 2s infinite;
}

@keyframes scrollLine {
  0% { top: -100%; }
  100% { top: 100%; }
}

/* ========================================
   Buttons
   ======================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 28px;
  font-size: 15px;
  font-weight: 500;
  border-radius: var(--radius-xl);
  border: none;
  cursor: pointer;
  transition: all var(--transition);
  font-family: var(--font);
  letter-spacing: -0.2px;
}

.btn--primary {
  background: var(--color-accent);
  color: #ffffff;
}

.btn--primary:hover {
  background: var(--color-accent-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(0, 122, 255, 0.3);
}

.btn--secondary {
  background: var(--color-tag-bg);
  color: var(--color-text);
}

.btn--secondary:hover {
  background: var(--color-card-hover);
  transform: translateY(-1px);
}

.btn--ghost {
  background: transparent;
  color: var(--color-accent);
  border: 1.5px solid var(--color-accent);
}

.btn--ghost:hover {
  background: var(--color-accent);
  color: #ffffff;
  transform: translateY(-1px);
}

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

/* ========================================
   Sections
   ======================================== */
.section {
  padding: 20px 0;
  transition: background-color var(--transition);
}

.section--alt {
  background-color: var(--color-bg-alt);
}

.section__title {
  font-size: 36px;
  font-weight: 700;
  letter-spacing: -1px;
  text-align: center;
  margin-bottom: 20px;
}

/* ========================================
   About Section
   ======================================== */
.about {
  display: flex;
  flex-direction: column;
  gap: 40px;
}

.about__text p {
  font-size: 17px;
  line-height: 1.8;
  color: var(--color-text-secondary);
  margin-bottom: 20px;
}

.about__text p:first-child {
  color: var(--color-text);
  font-size: 19px;
  font-weight: 500;
}

.about__stats {
  display: flex;
  flex-direction: row;
  gap: 16px;
}

.about__stat {
  flex: 1;
  text-align: center;
  padding: 16px 20px;
  background: var(--color-card-bg);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
}

.about__stat:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.about__stat-number {
  font-size: 32px;
  font-weight: 700;
  color: var(--color-accent);
  display: inline;
}

.about__stat-plus {
  font-size: 32px;
  font-weight: 700;
  color: var(--color-accent);
}

.about__stat-label {
  display: block;
  font-size: 14px;
  color: var(--color-text-secondary);
  margin-top: 2px;
}

@media (max-width: 480px) {
  .about__stat-number,
  .about__stat-plus {
    font-size: 24px;
  }

  .about__stat {
    padding: 12px 8px;
  }

  .about__stat-label {
    font-size: 12px;
  }
}

/* ========================================
   Skills Section
   ======================================== */
.skills {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 32px;
}

.skills__group {
  padding: 28px;
  background: var(--color-card-bg);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
}

.skills__group:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.skills__group-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-accent);
  margin-bottom: 16px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.skills__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.skill-tag {
  display: inline-block;
  padding: 6px 14px;
  background: var(--color-tag-bg);
  color: var(--color-tag-text);
  border-radius: var(--radius-xl);
  font-size: 13px;
  font-weight: 500;
  transition: all var(--transition);
}

.skill-tag:hover {
  background: var(--color-accent);
  color: #ffffff;
  transform: translateY(-1px);
}

/* ========================================
   Timeline / Experience
   ======================================== */
.timeline {
  position: relative;
  max-width: 720px;
  margin: 0 auto;
  padding-left: 40px;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 7px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--color-border);
}

.timeline__item {
  position: relative;
  margin-bottom: 40px;
}

.timeline__item:last-child {
  margin-bottom: 0;
}

.timeline__dot {
  position: absolute;
  left: -40px;
  top: 6px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--color-bg);
  border: 3px solid var(--color-accent);
  z-index: 1;
  transition: all var(--transition);
}

.timeline__item:hover .timeline__dot {
  background: var(--color-accent);
  transform: scale(1.3);
}

.timeline__content {
  padding: 24px;
  background: var(--color-card-bg);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
}

.timeline__item:hover .timeline__content {
  transform: translateX(8px);
  box-shadow: var(--shadow-md);
}

.timeline__header h3 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 4px;
}

.timeline__company {
  display: inline-block;
  font-size: 15px;
  font-weight: 500;
  color: var(--color-accent);
  margin-bottom: 4px;
  text-decoration: none;
  transition: opacity var(--transition);
}
a.timeline__company::after {
  content: '↗';
  display: inline-block;
  margin-left: 4px;
  font-size: 13px;
  transition: transform var(--transition);
}
a.timeline__company:hover {
  opacity: 0.7;
  text-decoration: underline;
}
a.timeline__company:hover::after {
  transform: translate(1px, -1px);
}

.timeline__date {
  display: block;
  font-size: 13px;
  color: var(--color-text-secondary);
  margin-bottom: 12px;
}

.timeline__list {
  list-style: none;
}

.timeline__list li {
  font-size: 15px;
  color: var(--color-text-secondary);
  line-height: 1.7;
  padding-left: 16px;
  position: relative;
  margin-bottom: 4px;
}

.timeline__list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 10px;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--color-accent);
}

/* ========================================
   App Cards
   ======================================== */
.apps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 16px;
}

.app-card {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 20px;
  background: var(--color-card-bg);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
}

.app-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-accent);
}

.app-card__icon {
  width: 64px;
  height: 64px;
  border-radius: 16px;
  overflow: hidden;
  flex-shrink: 0;
  background: var(--color-tag-bg);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.12);
}

.app-card__icon img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 16px;
}

.app-card__icon--placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--color-accent), #5856d6);
  color: #ffffff;
  font-size: 18px;
  font-weight: 700;
}

.app-card__info {
  flex: 1;
  min-width: 0;
}

.app-card__info h3 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 4px;
}

.app-card__info p {
  font-size: 13px;
  color: var(--color-text-secondary);
  margin-bottom: 8px;
  line-height: 1.4;
}

.app-card__tech {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.app-card__tech span {
  font-size: 11px;
  font-weight: 500;
  padding: 2px 8px;
  background: var(--color-tag-bg);
  color: var(--color-text-secondary);
  border-radius: var(--radius-xl);
}

.app-card__arrow {
  flex-shrink: 0;
  color: var(--color-text-secondary);
  transition: all var(--transition);
}

.app-card:hover .app-card__arrow {
  color: var(--color-accent);
  transform: translate(2px, -2px);
}

.app-card__arrow svg {
  width: 20px;
  height: 20px;
}

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

/* ========================================
   Project Cards (Open Source)
   ======================================== */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 24px;
}

.project-card {
  padding: 28px;
  background: var(--color-card-bg);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
  display: flex;
  flex-direction: column;
}

.project-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-accent);
}

.project-card__header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
}

.project-card__icon {
  width: 28px;
  height: 28px;
  color: var(--color-accent);
}

.project-card__link-icon {
  width: 20px;
  height: 20px;
  color: var(--color-text-secondary);
  transition: all var(--transition);
}

.project-card:hover .project-card__link-icon {
  color: var(--color-accent);
  transform: translate(2px, -2px);
}

.project-card h3 {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 12px;
}

.project-card p {
  font-size: 15px;
  color: var(--color-text-secondary);
  line-height: 1.6;
  margin-bottom: 20px;
  flex: 1;
}

.project-card__tech {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.project-card__tech span {
  font-size: 12px;
  font-weight: 500;
  padding: 4px 12px;
  background: var(--color-tag-bg);
  color: var(--color-text-secondary);
  border-radius: var(--radius-xl);
}

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

/* ========================================
   Education
   ======================================== */
.education {
  max-width: 600px;
  margin: 0 auto;
}

.education__card {
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 32px;
  background: var(--color-card-bg);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
}

.education__card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.education__icon {
  width: 56px;
  height: 56px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--color-accent), #5856d6);
  border-radius: var(--radius-sm);
  color: #ffffff;
}

.education__icon--img {
  background: none;
  overflow: hidden;
  border-radius: 12px;
}

.education__icon--img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 12px;
}

.education__icon svg {
  width: 28px;
  height: 28px;
}

.education__info h3 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 4px;
}

.education__info p {
  font-size: 15px;
  color: var(--color-text-secondary);
  margin-bottom: 4px;
}

.education__info span {
  font-size: 13px;
  color: var(--color-text-secondary);
}

/* ========================================
   Contact Section
   ======================================== */
.contact {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: start;
}

.contact--calendly {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 24px;
}

.contact--calendly .contact__intro {
  max-width: 480px;
  margin-bottom: 0;
}

.btn--calendly {
  padding: 16px 36px;
  font-size: 17px;
  font-weight: 600;
}

.contact__socials {
  display: flex;
  gap: 20px;
  justify-content: center;
}

.contact__socials a {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  color: var(--color-text-secondary);
  border: 1px solid var(--color-border);
  transition: all var(--transition);
}

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

.contact__socials svg {
  width: 20px;
  height: 20px;
}

.contact__intro {
  font-size: 19px;
  line-height: 1.7;
  color: var(--color-text-secondary);
  margin-bottom: 32px;
}

.contact__links {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.contact__link {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px;
  background: var(--color-card-bg);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
}

.contact__link:hover {
  transform: translateX(8px);
  border-color: var(--color-accent);
  box-shadow: var(--shadow-sm);
}

.contact__link svg {
  width: 24px;
  height: 24px;
  color: var(--color-accent);
  flex-shrink: 0;
}

.contact__link span {
  font-size: 12px;
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  display: block;
}

.contact__link strong {
  font-size: 15px;
  font-weight: 500;
  display: block;
}

/* Contact Form */
.contact__form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.contact__form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.contact__form-group label {
  font-size: 13px;
  font-weight: 600;
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.contact__form-group input,
.contact__form-group textarea {
  padding: 14px 16px;
  font-size: 15px;
  font-family: var(--font);
  color: var(--color-text);
  background: var(--color-input-bg);
  border: 1.5px solid var(--color-input-border);
  border-radius: var(--radius-sm);
  transition: all var(--transition);
  resize: vertical;
}

.contact__form-group input:focus,
.contact__form-group textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(0, 122, 255, 0.15);
}

.contact__form-group input::placeholder,
.contact__form-group textarea::placeholder {
  color: var(--color-text-secondary);
  opacity: 0.6;
}

@media (max-width: 768px) {
  .contact {
    grid-template-columns: 1fr;
    gap: 40px;
  }
}

/* ========================================
   Footer
   ======================================== */
.footer {
  padding: 32px 0;
  border-top: 1px solid var(--color-border);
  transition: border-color var(--transition);
}

.footer__content {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.footer__content p {
  font-size: 14px;
  color: var(--color-text-secondary);
}

.footer__links {
  display: flex;
  gap: 16px;
}

.footer__links a {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-secondary);
  transition: all var(--transition);
  border-radius: 50%;
}

.footer__links a:hover {
  color: var(--color-accent);
  background: var(--color-tag-bg);
}

.footer__links svg {
  width: 18px;
  height: 18px;
}

@media (max-width: 480px) {
  .footer__content {
    flex-direction: column;
    gap: 16px;
    text-align: center;
  }
}

/* ========================================
   Reveal Animations
   ======================================== */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94),
              transform 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

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

/* ========================================
   Responsive
   ======================================== */
@media (max-width: 768px) {
  .hero__name {
    font-size: 36px;
  }

  .hero__title {
    font-size: 18px;
  }

  .hero__tagline {
    font-size: 15px;
  }

  .section {
    padding: 16px 0;
  }

  .section__title {
    font-size: 28px;
    margin-bottom: 16px;
  }
}

@media (max-width: 480px) {
  .hero {
    padding: 100px 16px 60px;
  }

  .hero__name {
    font-size: 28px;
  }

  .hero__avatar {
    width: 110px;
    height: 110px;
  }

  .hero__cta {
    flex-direction: column;
    align-items: center;
  }

  .container {
    padding: 0 16px;
  }

  .timeline {
    padding-left: 32px;
  }

  .timeline__dot {
    left: -32px;
    width: 12px;
    height: 12px;
  }

  .timeline::before {
    left: 5px;
  }
}

/* ========================================
   Selection
   ======================================== */
::selection {
  background: var(--color-accent);
  color: #ffffff;
}

/* ========================================
   Scrollbar
   ======================================== */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--color-bg);
}

::-webkit-scrollbar-thumb {
  background: var(--color-border);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--color-text-secondary);
}