/* ==============================
   GLOBAL STYLES
   (Consolidated, theme-friendly, smooth transitions)
============================== */

:root {
  --primary: #d4af37;   /* Elegant gold */
  --secondary: #0d1b2a; /* Deep navy */
  --text-dark: #0e0e0e;
  --text-light: #555;
  --muted-bg: #f6f6f6;
  --max-width: 1200px;
}

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

/* Smooth transition for theme switch & general polish */
* {
  transition: background-color 0.35s ease, color 0.35s ease, border-color 0.35s ease,
              transform 0.25s ease, opacity 0.25s ease;
  scroll-behavior: smooth;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: 'Poppins', sans-serif;
  background-color: #ffffff;
  color: var(--text-dark);
  line-height: 1.6;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}

/* Helper container */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 2rem;
}

/* Headings & links */
h1, h2, h3, h4 {
  font-weight: 600;
  color: var(--secondary);
}

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

/* Small text */
.section-subtitle {
  color: var(--text-light);
  text-align: center;
  margin-bottom: 1.6rem;
}

/* Buttons base */
.btn {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  border-radius: 30px;
  font-weight: 500;
  cursor: pointer;
  text-align: center;
  border: none;
}

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

.btn.primary:hover {
  filter: brightness(0.95);
  transform: translateY(-2px);
}

.btn.secondary {
  background: transparent;
  border: 2px solid var(--secondary);
  color: var(--secondary);
}

.btn.secondary:hover {
  background: var(--secondary);
  color: #fff;
}

/* Small button variant */
.btn.small {
  padding: 0.45rem 0.9rem;
  font-size: 0.9rem;
  border-radius: 8px;
}

/* ==============================
   NAVBAR
============================== */

header {
  width: 100%;
  position: fixed;
  top: 0;
  left: 0;
  z-index: 1200;
  background: rgba(255,255,255,0.6);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid rgba(0,0,0,0.04);
}

.navbar {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 2rem;
  align-items: center;
}

/* logo */
.logo {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--secondary);
  letter-spacing: 0.4px;
}

.logo span {
  color: var(--primary);
}

/* nav links */
.nav-links {
  display: flex;
  gap: 1.2rem;
  align-items: center;
}

.nav-links a {
  color: inherit;
  font-weight: 500;
  padding: 0.2rem 0.25rem;
  position: relative;
  transition: color 0.25s ease;
}

.nav-links a:hover {
  color: var(--primary);
}

/* Active nav styling */
.nav-links a.active {
  color: var(--primary);
  font-weight: 600;
}

.nav-links a.active::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -6px;
  width: 100%;
  height: 3px;
  background: var(--primary);
  border-radius: 3px;
}

/* Theme toggle */
.theme-toggle {
  margin-left: 1rem;
  font-size: 1.2rem;
  background: none;
  border: none;
  color: var(--secondary);
  cursor: pointer;
  padding: 0.25rem;
}

.theme-toggle:hover {
  color: var(--primary);
  transform: rotate(12deg);
}

.theme-toggle i {
  display: inline-block;
  transition: opacity 0.28s ease, transform 0.28s ease;
}

/* header shadow when scrolled (added/removed by JS) */
header.scrolled {
  box-shadow: 0 4px 18px rgba(13,27,42,0.08);
}

/* Add top spacing for content to avoid overlap with fixed header */
body > :not(header) {
  padding-top: 72px;
}

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

.hero {
  min-height: calc(100vh - 72px);
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 3rem 2rem;
  background: linear-gradient(135deg, #f5f5f5 0%, #eaf3ff 100%);
  color: var(--text-dark);
}

.hero-content {
  max-width: 920px;
  margin: 0 auto;
  padding: 2rem;
}

.hero h1 {
  font-size: 2.6rem;
  margin-bottom: 0.25rem;
  color: var(--secondary);
}

.hero h1 span {
  color: var(--primary);
}

.typing-text {
  font-size: 1.2rem;
  color: var(--secondary);
  min-height: 36px; /* reserve space for typing animation */
  margin-top: 0.35rem;
  letter-spacing: 0.6px;
}

.hero p {
  margin-top: 1rem;
  max-width: 760px;
  color: var(--text-light);
  margin-left: auto;
  margin-right: auto;
}

/* hero buttons row */
.hero-buttons {
  margin-top: 1.6rem;
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

/* ==============================
   SECTION BASE
============================== */

section {
  padding: 4.5rem 0;
}

.section-title {
  text-align: center;
  font-size: 2rem;
  color: var(--secondary);
  margin-bottom: 1rem;
  position: relative;
}

.section-title::after {
  content: '';
  display: block;
  width: 60px;
  height: 3px;
  background: var(--primary);
  margin: 0.5rem auto 0;
  border-radius: 3px;
}

/* ==============================
   ABOUT SECTION
============================== */

.about {
  background: transparent;
  color: var(--text-dark);
}

.about .container {
  display: flex;
  gap: 2.5rem;
  align-items: center;
  justify-content: center;
  padding: 1rem 0;
  flex-wrap: wrap;
}

/* profile image */
.about-image {
  flex: 0 0 260px;
  text-align: center;
}

.about-image img {
  width: 220px;
  height: 220px;
  border-radius: 50%;
  object-fit: cover;
  box-shadow: 0 10px 30px rgba(13,27,42,0.08);
  border: 4px solid rgba(0,0,0,0.03);
}

/* about details */
.about-content {
  flex: 1 1 520px;
  min-width: 260px;
}

.about-content h2 {
  font-size: 1.8rem;
  color: var(--primary);
  margin-bottom: 0.6rem;
}

.about-content p {
  color: var(--secondary);
  margin-bottom: 0.8rem;
}

.about-info {
  margin: 0.9rem 0 1.3rem 0;
  color: var(--text-light);
  font-size: 0.95rem;
}

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

.skills .container {
  padding-top: 0.8rem;
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.6rem;
  margin-top: 1.2rem;
}

/* we used .skill-category in HTML */
.skill-category {
  border: 1px solid rgba(0,0,0,0.06);
  background: #fff;
  padding: 1.6rem;
  border-radius: 10px;
  transition: transform 0.28s ease, box-shadow 0.28s ease;
}

.skill-category:hover {
  transform: translateY(-6px);
  box-shadow: 0 10px 30px rgba(13,27,42,0.06);
}

.skill-category h3 {
  margin-bottom: 0.8rem;
  font-size: 1.05rem;
}

/* lists */
.skill-category ul {
  margin-top: 0.6rem;
  color: var(--text-light);
  line-height: 1.6;
}

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

.projects .container {
  padding-top: 0.8rem;
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.6rem;
  margin-top: 1.2rem;
}

.project-card {
  border-radius: 12px;
  overflow: hidden;
  background: #fff;
  border: 1px solid rgba(0,0,0,0.06);
  transition: transform 0.28s ease, box-shadow 0.28s ease;
  display: flex;
  flex-direction: column;
}

.project-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 18px 40px rgba(13,27,42,0.08);
}

/* project image */
.project-card img {
  width: 100%;
  height: 160px;
  object-fit: cover;
  display: block;
}

/* content area */
.project-content {
  padding: 1.25rem;
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.project-content h3 {
  margin-bottom: 0.6rem;
  color: var(--secondary);
}

.project-content p {
  color: var(--text-light);
  font-size: 0.95rem;
}

/* project links (buttons) */
.project-links {
  margin-top: 1rem;
  display: flex;
  gap: 0.6rem;
  flex-wrap: wrap;
}

/* ==============================
   JOURNEY / TIMELINE SECTION
============================== */

.journey .container {
  padding-top: 0.4rem;
}

.timeline {
  margin-top: 1.2rem;
  display: flex;
  flex-direction: column;
  gap: 1.4rem;
}

/* timeline item */
.timeline-item {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}

.timeline-dot {
  width: 14px;
  height: 14px;
  background: var(--primary);
  border-radius: 50%;
  margin-top: 6px;
  flex: 0 0 14px;
}

.timeline-content {
  background: rgba(0,0,0,0.02);
  padding: 0.9rem 1rem;
  border-radius: 8px;
  border: 1px solid rgba(0,0,0,0.03);
}

.timeline-content h3 {
  margin-bottom: 0.25rem;
  font-size: 1.05rem;
}

.timeline-content .timeline-date {
  display: inline-block;
  font-size: 0.9rem;
  color: var(--secondary);
  margin-bottom: 0.45rem;
}

.timeline-content p {
  color: var(--text-light);
}

/* ==============================
   CONTACT SECTION
============================== */

.contact .container {
  padding-top: 0.4rem;
}

.contact-content {
  display: grid;
  grid-template-columns: 1fr 360px;
  gap: 2rem;
  align-items: start;
  margin-top: 1rem;
}

/* contact form */
.contact-form {
  background: #fff;
  padding: 1.25rem;
  border-radius: 8px;
  border: 1px solid rgba(0,0,0,0.04);
}

.form-group {
  margin-bottom: 0.9rem;
}

.contact-form input[type="text"],
.contact-form input[type="email"],
.contact-form textarea {
  width: 100%;
  padding: 0.85rem 0.9rem;
  border: 1px solid rgba(0,0,0,0.08);
  border-radius: 6px;
  font-size: 0.95rem;
  color: var(--text-dark);
  background: transparent;
}

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

/* contact info */
.contact-info {
  background: transparent;
  padding: 0.6rem 0.4rem;
}

.contact-info h3 {
  margin-bottom: 0.6rem;
}

.contact-info ul {
  margin-top: 0.6rem;
  color: var(--text-light);
  line-height: 1.6;
}

.contact-info li a {
  color: var(--secondary);
}

.contact-info li a:hover {
  color: var(--primary);
}

/* Footer */
.footer {
  background: var(--muted-bg);
  text-align: center;
  padding: 1.2rem 1rem;
  font-size: 0.95rem;
  color: var(--text-light);
  border-top: 1px solid rgba(0,0,0,0.04);
}

/* subtle accent in footer */
.footer p {
  color: var(--text-light);
}

/* ==============================
   ANIMATIONS / REVEAL SUPPORT
============================== */

.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

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

/* typing caret (optional) */
.typing-text::after {
  content: '|';
  margin-left: 6px;
  opacity: 0.8;
  animation: blink 1s steps(2, start) infinite;
  color: var(--secondary);
}

@keyframes blink {
  0%, 49% { opacity: 0.8; }
  50%, 100% { opacity: 0; }
}

/* ==============================
   THEME / DARK MODE
============================== */

body.dark-mode {
  background-color: #071223;
  color: #e8eef6;
}

body.dark-mode header {
  background: rgba(8,16,28,0.75);
  border-bottom-color: rgba(255,255,255,0.03);
}

body.dark-mode .logo { color: #f5f8fb; }
body.dark-mode .logo span { color: var(--primary); }

body.dark-mode .nav-links a { color: #e8eef6; }
body.dark-mode .nav-links a.active { color: var(--primary); }

body.dark-mode .hero {
  background: linear-gradient(135deg, #061324 0%, #0d243a 100%);
  color: #e8eef6;
}

body.dark-mode .hero p { color: #cbd7e6; }

body.dark-mode .skill-category,
body.dark-mode .project-card,
body.dark-mode .contact-form,
body.dark-mode .timeline-content {
  background: #091a2b;
  border-color: #163047;
  color: #dbeafc;
}

body.dark-mode .about-image img {
  box-shadow: 0 10px 30px rgba(0,0,0,0.35);
  border-color: rgba(255,255,255,0.02);
}

body.dark-mode .btn.primary {
  background: var(--primary);
  color: #071223;
}

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

@media (max-width: 1024px) {
  .contact-content {
    grid-template-columns: 1fr 320px;
  }
  .about-image {
    flex: 0 0 200px;
  }
  .hero h1 { font-size: 2.2rem; }
}

@media (max-width: 820px) {
  .navbar {
    padding: 0.9rem 1rem;
  }

  .nav-links {
    gap: 0.7rem;
    font-size: 0.94rem;
  }

  .about .container {
    gap: 1.2rem;
  }

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

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

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

  .hero h1 {
    font-size: 1.9rem;
  }

  .typing-text { font-size: 1rem; }
}

@media (max-width: 480px) {
  .logo { font-size: 1.05rem; }
  .hero h1 { font-size: 1.6rem; }
  .hero p { font-size: 0.98rem; }
  .theme-toggle { font-size: 1rem; }
  body > :not(header) { padding-top: 64px; }
}