/* =============================================
   HARRY SHAH PORTFOLIO — style.css
   Dark Editorial × Amber Aesthetic
   ============================================= */

/* ---- CSS VARIABLES ---- */
:root {
  --bg:         #0c0c0e;
  --bg-2:       #111116;
  --bg-3:       #18181f;
  --surface:    #1d1d26;
  --surface-2:  #25252f;
  --border:     rgba(255,255,255,0.07);
  --border-2:   rgba(255,255,255,0.12);

  --amber:      #f5a623;
  --amber-dim:  #c47d0e;
  --amber-glow: rgba(245,166,35,0.18);

  --text:       #e8e8ee;
  --text-dim:   #8888a0;
  --text-muted: #55556a;

  --font-display: 'Syne', sans-serif;
  --font-body:    'DM Sans', sans-serif;
  --font-mono:    'DM Mono', monospace;

  --radius:    12px;
  --radius-sm: 6px;
  --transition: 0.3s cubic-bezier(0.4,0,0.2,1);
  --shadow:    0 4px 32px rgba(0,0,0,0.5);
  --shadow-lg: 0 8px 64px rgba(0,0,0,0.6);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.7;
  overflow-x: hidden;
}

img { display: block; max-width: 100%; }
a  { color: inherit; text-decoration: none; }
ul { list-style: none; }

::selection { background: var(--amber); color: var(--bg); }

/* ---- TYPOGRAPHY HELPERS ---- */
.mono    { font-family: var(--font-mono); }
.accent  { color: var(--amber); }

/* ---- SCROLLBAR ---- */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--surface-2); border-radius: 3px; }

/* ---- CONTAINER ---- */
.container {
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ---- BUTTONS ---- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  border: none;
  transition: var(--transition);
  white-space: nowrap;
}

.btn-primary {
  background: var(--amber);
  color: var(--bg);
  font-weight: 600;
}
.btn-primary:hover {
  background: #ffc246;
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(245,166,35,0.35);
}

.btn-ghost {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border-2);
}
.btn-ghost:hover {
  border-color: var(--amber);
  color: var(--amber);
  transform: translateY(-2px);
}

.btn-sm  { padding: 8px 16px; font-size: 0.82rem; }
.btn-full { width: 100%; justify-content: center; }

/* ---- SECTION SHARED ---- */
.section { padding: 120px 0; }

.section-label {
  margin-bottom: 16px;
}
.section-label span {
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--amber);
  border: 1px solid var(--amber-glow);
  background: var(--amber-glow);
  padding: 4px 12px;
  border-radius: 100px;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  line-height: 1.15;
  color: var(--text);
  margin-bottom: 40px;
}

/* ---- ANIMATIONS ---- */
.fade-in {
  opacity: 0;
  transform: translateY(24px);
  animation: fadeUp 0.7s ease forwards;
  animation-delay: var(--delay, 0s);
}

@keyframes fadeUp {
  to { opacity: 1; transform: translateY(0); }
}

.reveal {
  opacity: 0;
  transform: translateY(36px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ---- NAVBAR ---- */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  padding: 20px 0;
  transition: background var(--transition), backdrop-filter var(--transition), padding var(--transition), box-shadow var(--transition);
}

.navbar.scrolled {
  background: rgba(12,12,14,0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  padding: 12px 0;
  box-shadow: 0 1px 0 var(--border);
}

.nav-container {
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.1rem;
  letter-spacing: 0.05em;
  color: var(--text);
  transition: color var(--transition);
}
.nav-logo:hover { color: var(--amber); }
.logo-bracket { color: var(--amber); }

.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-link {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--text-dim);
  padding: 6px 14px;
  border-radius: var(--radius-sm);
  transition: var(--transition);
  letter-spacing: 0.03em;
}
.nav-link:hover,
.nav-link.active {
  color: var(--text);
  background: var(--surface);
}
.nav-link.active { color: var(--amber); }

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
}
.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: var(--transition);
}
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---- HERO ---- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: radial-gradient(ellipse 80% 60% at 50% 0%, rgba(245,166,35,0.08) 0%, transparent 70%),
              linear-gradient(180deg, var(--bg) 0%, var(--bg-2) 100%);
}

.hero-noise {
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.03'/%3E%3C/svg%3E");
  opacity: 0.4;
  pointer-events: none;
}

.hero-grid-lines {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 80px 80px;
  opacity: 0.4;
  pointer-events: none;
  mask-image: radial-gradient(ellipse 70% 70% at 50% 50%, black 0%, transparent 75%);
}

.hero-container {
  position: relative;
  z-index: 2;
  max-width: 1160px;
  margin: 0 auto;
  padding: 120px 24px 60px;
  width: 100%;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 100px;
  padding: 6px 16px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-dim);
  margin-bottom: 32px;
}
.dot {
  width: 7px; height: 7px;
  background: #4ade80;
  border-radius: 50%;
  box-shadow: 0 0 8px #4ade80;
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.5; }
}

.hero-name {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(4rem, 12vw, 9rem);
  line-height: 0.9;
  letter-spacing: -0.03em;
  margin-bottom: 28px;
}
.name-outline {
  -webkit-text-stroke: 2px var(--text);
  color: transparent;
  display: block;
}

.hero-role {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 0.9rem;
  color: var(--text-dim);
  margin-bottom: 20px;
  flex-wrap: wrap;
}
.divider {
  color: var(--amber);
  font-weight: 700;
}

.hero-tagline {
  font-size: 1.05rem;
  color: var(--text-dim);
  max-width: 460px;
  margin-bottom: 40px;
  line-height: 1.8;
}
.hero-tagline em {
  font-style: normal;
  color: var(--text);
}

.hero-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.hero-scroll-hint {
  position: absolute;
  bottom: 48px;
  left: 24px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 8px;
}
.hero-scroll-hint span {
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  writing-mode: horizontal-tb;
}
.scroll-line {
  width: 1px;
  height: 48px;
  background: linear-gradient(to bottom, var(--amber), transparent);
  animation: scrollPulse 2s infinite;
}
@keyframes scrollPulse {
  0%   { transform: scaleY(1); opacity: 1; }
  100% { transform: scaleY(0.3); opacity: 0; }
}

.hero-counter {
  position: absolute;
  right: 24px;
  bottom: 48px;
  display: flex;
  flex-direction: column;
  gap: 20px;
  z-index: 2;
}
.counter-item {
  text-align: right;
}
.counter-num {
  display: block;
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 800;
  color: var(--text);
  line-height: 1;
}
.counter-label {
  font-size: 0.7rem;
  color: var(--text-muted);
  letter-spacing: 0.1em;
}

/* ---- ABOUT ---- */
.about { background: var(--bg-2); }

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.about-para {
  color: var(--text-dim);
  margin-bottom: 16px;
  font-size: 1rem;
  max-width: 520px;
}
.about-para strong { color: var(--text); font-weight: 600; }

.about-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 24px;
}
.tag {
  background: var(--surface);
  border: 1px solid var(--border-2);
  color: var(--text-dim);
  font-size: 0.78rem;
  padding: 4px 12px;
  border-radius: 100px;
  transition: var(--transition);
}
.tag:hover {
  border-color: var(--amber);
  color: var(--amber);
}

.about-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 40px;
  box-shadow: var(--shadow);
  transition: var(--transition);
}
.about-card:hover {
  border-color: var(--border-2);
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.about-card-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 28px;
}

.avatar-ring {
  width: 100px;
  height: 100px;
  border-radius: 50%;
  padding: 3px;
  background: linear-gradient(135deg, var(--amber), transparent 60%);
}
.avatar-placeholder {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  background: var(--bg-3);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.4rem;
  color: var(--text-dim);
}

.about-card-info {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.about-info-item {
  font-size: 0.82rem;
  color: var(--text-dim);
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  background: var(--bg-3);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
}
.about-info-item i {
  color: var(--amber);
  width: 14px;
}

/* ---- SKILLS ---- */
.skills { background: var(--bg); }

.skills-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.skill-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.skill-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 0% 100%, var(--amber-glow) 0%, transparent 60%);
  opacity: 0;
  transition: var(--transition);
}
.skill-card:hover { border-color: var(--border-2); transform: translateY(-4px); box-shadow: var(--shadow); }
.skill-card:hover::before { opacity: 1; }

.skill-icon {
  font-size: 1.8rem;
  color: var(--amber);
  margin-bottom: 12px;
}

.skill-name {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 6px;
  color: var(--text);
}

.skill-desc {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-bottom: 16px;
  line-height: 1.5;
}

.skill-bar-wrap {
  height: 3px;
  background: var(--bg-3);
  border-radius: 2px;
  overflow: hidden;
  margin-bottom: 8px;
}

.skill-bar {
  height: 100%;
  width: 0;
  background: linear-gradient(90deg, var(--amber-dim), var(--amber));
  border-radius: 2px;
  transition: width 1.2s cubic-bezier(0.4,0,0.2,1);
}

.skill-pct {
  font-size: 0.72rem;
  color: var(--amber);
}

/* ---- PROJECTS ---- */
.projects { background: var(--bg-2); }

.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.project-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  position: relative;
  overflow: hidden;
  transition: var(--transition);
}
.project-card::after {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--amber), transparent);
  opacity: 0;
  transition: var(--transition);
}
.project-card:hover {
  border-color: var(--border-2);
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}
.project-card:hover::after { opacity: 1; }

.project-number {
  font-size: 0.72rem;
  color: var(--text-muted);
  letter-spacing: 0.1em;
}

.project-badge {
  position: absolute;
  top: 24px; right: 24px;
  background: rgba(245,166,35,0.12);
  border: 1px solid rgba(245,166,35,0.25);
  color: var(--amber);
  font-size: 0.72rem;
  padding: 3px 10px;
  border-radius: 100px;
  display: flex;
  align-items: center;
  gap: 5px;
  font-family: var(--font-mono);
}

.project-title {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text);
  line-height: 1.3;
}

.project-desc {
  color: var(--text-dim);
  font-size: 0.88rem;
  line-height: 1.7;
  flex: 1;
}

.project-tech {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.tech-tag {
  font-size: 0.72rem;
  color: var(--text-muted);
  border: 1px solid var(--border);
  padding: 2px 8px;
  border-radius: var(--radius-sm);
  background: var(--bg-3);
}

.project-links {
  display: flex;
  gap: 8px;
  margin-top: auto;
}

/* ---- CONTACT ---- */
.contact { background: var(--bg); }

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 80px;
  align-items: start;
}

.contact-sub {
  color: var(--text-dim);
  margin-bottom: 32px;
  font-size: 1rem;
}

.contact-socials {
  display: flex;
  gap: 12px;
}
.social-link {
  width: 42px; height: 42px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-dim);
  font-size: 0.95rem;
  transition: var(--transition);
}
.social-link:hover {
  border-color: var(--amber);
  color: var(--amber);
  background: var(--amber-glow);
  transform: translateY(-2px);
}

/* FORM */
.contact-form { display: flex; flex-direction: column; gap: 20px; }

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

.form-label {
  font-size: 0.78rem;
  color: var(--text-dim);
  letter-spacing: 0.06em;
}

.form-input {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 0.9rem;
  padding: 12px 16px;
  transition: var(--transition);
  outline: none;
  width: 100%;
}
.form-input::placeholder { color: var(--text-muted); }
.form-input:focus {
  border-color: var(--amber);
  background: var(--bg-3);
  box-shadow: 0 0 0 3px var(--amber-glow);
}
.form-input.error { border-color: #ef4444; }

.form-textarea {
  resize: vertical;
  min-height: 130px;
}

.form-error {
  font-size: 0.75rem;
  color: #ef4444;
  font-family: var(--font-mono);
  min-height: 16px;
}

.form-success {
  display: none;
  align-items: center;
  gap: 8px;
  color: #4ade80;
  font-size: 0.88rem;
  background: rgba(74,222,128,0.08);
  border: 1px solid rgba(74,222,128,0.2);
  padding: 12px 16px;
  border-radius: var(--radius-sm);
}
.form-success.show { display: flex; }
.form-success i { font-size: 1rem; }

/* ---- FOOTER ---- */
.footer {
  padding: 28px 0;
  border-top: 1px solid var(--border);
  background: var(--bg);
}
.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.footer-copy {
  font-size: 0.78rem;
  color: var(--text-muted);
}
.footer-logo {
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 800;
  color: var(--text-muted);
  transition: color var(--transition);
}
.footer-logo:hover { color: var(--amber); }

/* ---- BACK TO TOP ---- */
.back-to-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  width: 44px;
  height: 44px;
  background: var(--amber);
  color: var(--bg);
  border: none;
  border-radius: var(--radius-sm);
  font-size: 1rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 999;
  box-shadow: 0 4px 20px rgba(245,166,35,0.4);
  transform: translateY(80px);
  opacity: 0;
  transition: var(--transition);
}
.back-to-top.visible {
  transform: translateY(0);
  opacity: 1;
}
.back-to-top:hover {
  background: #ffc246;
  transform: translateY(-3px);
  box-shadow: 0 8px 28px rgba(245,166,35,0.5);
}

/* ---- REVEAL DELAY STAGGER ---- */
.projects-grid .project-card:nth-child(1),
.skills-grid .skill-card:nth-child(1) { transition-delay: 0s; }
.projects-grid .project-card:nth-child(2),
.skills-grid .skill-card:nth-child(2) { transition-delay: 0.1s; }
.projects-grid .project-card:nth-child(3),
.skills-grid .skill-card:nth-child(3) { transition-delay: 0.2s; }
.skills-grid .skill-card:nth-child(4) { transition-delay: 0.3s; }
.skills-grid .skill-card:nth-child(5) { transition-delay: 0.4s; }
.skills-grid .skill-card:nth-child(6) { transition-delay: 0.5s; }

/* ---- RESPONSIVE ---- */
@media (max-width: 960px) {
  .about-grid   { grid-template-columns: 1fr; }
  .about-visual { order: -1; }
  .about-card   { max-width: 360px; margin: 0 auto; }
  .about-para   { max-width: 100%; }

  .skills-grid  { grid-template-columns: repeat(2, 1fr); }
  .projects-grid { grid-template-columns: 1fr; }

  .contact-grid { grid-template-columns: 1fr; gap: 48px; }

  .hero-counter {
    position: static;
    flex-direction: row;
    justify-content: center;
    gap: 40px;
    padding: 0 24px;
    margin-top: 48px;
  }
  .counter-item { text-align: center; }
  .hero-scroll-hint { display: none; }

  .section { padding: 80px 0; }
}

@media (max-width: 640px) {
  .nav-links {
    display: none;
    position: fixed;
    top: 72px; left: 0; right: 0;
    background: rgba(12,12,14,0.97);
    backdrop-filter: blur(20px);
    flex-direction: column;
    padding: 24px;
    gap: 4px;
    border-bottom: 1px solid var(--border);
  }
  .nav-links.open { display: flex; }
  .nav-link { padding: 12px 16px; font-size: 0.9rem; }
  .hamburger { display: flex; }

  .hero-name { font-size: clamp(3.2rem, 16vw, 5rem); }
  .hero-container { padding-top: 100px; }

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

  .hero-actions { flex-direction: column; }
  .btn { width: 100%; justify-content: center; }

  .footer-inner { flex-direction: column; gap: 12px; }

  .section { padding: 64px 0; }
}