/* =========================================================
   Portfolio — Main Stylesheet
   Author: Tony Sanchez
   ========================================================= */

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

:root {
  --bg-primary:    #0A0E1A;
  --bg-secondary:  #111827;
  --surface:       #1E2A3A;
  --border:        #2D3748;
  --accent-cyan:   #00D4FF;
  --accent-blue:   #3B82F6;
  --accent-green:  #10B981;
  --text-primary:  #F1F5F9;
  --text-secondary:#94A3B8;

  --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;

  --transition: 200ms ease;
}

html { scroll-behavior: smooth; }

body {
  background-color: var(--bg-primary);
  background-image: radial-gradient(rgba(0, 212, 255, 0.07) 1px, transparent 1px);
  background-size: 28px 28px;
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.6;
  min-height: 100vh;
}

img { display: block; max-width: 100%; }
a { color: var(--accent-cyan); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--accent-blue); }

/* ----- Typography ----- */
h1, h2, h3, h4 { line-height: 1.2; font-weight: 700; }
h1 { font-size: clamp(2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.5rem, 3vw, 2.25rem); }
h3 { font-size: clamp(1.1rem, 2vw, 1.5rem); }

.text-accent-cyan  { color: var(--accent-cyan); }
.text-accent-green { color: var(--accent-green); }
.text-secondary    { color: var(--text-secondary); }

/* ----- Layout Utilities ----- */
.container {
  width: 100%;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 1.25rem;
}

.section { padding: 5rem 0; }
.section--alt {
  background-color: var(--bg-secondary);
  background-image: radial-gradient(rgba(59, 130, 246, 0.06) 1px, transparent 1px);
  background-size: 28px 28px;
}

/* ----- Navigation ----- */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: rgba(10, 14, 26, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.nav__logo {
  font-family: var(--font-mono);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--accent-cyan);
  letter-spacing: 0.04em;
}

.nav__links {
  display: flex;
  gap: 2rem;
  list-style: none;
}

.nav__links a {
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  transition: color var(--transition);
}

.nav__links a:hover,
.nav__links a.active { color: var(--text-primary); }

/* Mobile nav toggle */
.nav__toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  color: var(--text-primary);
}

.nav__toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: currentColor;
  margin: 5px 0;
  transition: transform var(--transition), opacity var(--transition);
}

@media (max-width: 640px) {
  .nav__toggle { display: block; }

  .nav__links {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    flex-direction: column;
    gap: 0;
    background-color: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
    padding: 0.5rem 0;
  }

  .nav__links.open { display: flex; }

  .nav__links a {
    display: block;
    padding: 0.75rem 1.25rem;
  }
}

/* ----- Buttons ----- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.625rem 1.375rem;
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all var(--transition);
  text-decoration: none;
}

.btn--primary {
  background-color: var(--accent-cyan);
  color: var(--bg-primary);
}
.btn--primary:hover {
  background-color: #00bfe8;
  color: var(--bg-primary);
}

.btn--outline {
  background-color: transparent;
  color: var(--accent-cyan);
  border: 1px solid var(--accent-cyan);
}
.btn--outline:hover {
  background-color: rgba(0, 212, 255, 0.08);
  color: var(--accent-cyan);
}

.btn--ghost {
  background-color: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--border);
}
.btn--ghost:hover {
  color: var(--text-primary);
  border-color: var(--text-secondary);
}

/* ----- Cards ----- */
.card {
  background-color: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  transition: border-color var(--transition), transform var(--transition);
}

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

.card__label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent-cyan);
  margin-bottom: 0.5rem;
}

.card__title { margin-bottom: 0.5rem; }
.card__body  { color: var(--text-secondary); font-size: 0.925rem; }

/* ----- Tags / Pills ----- */
.tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.2rem 0.6rem;
  border-radius: 999px;
  background-color: rgba(0, 212, 255, 0.1);
  color: var(--accent-cyan);
  border: 1px solid rgba(0, 212, 255, 0.25);
  text-align: center;
}

.tag--green {
  background-color: rgba(16, 185, 129, 0.1);
  color: var(--accent-green);
  border-color: rgba(16, 185, 129, 0.25);
}

.tag--blue {
  background-color: rgba(59, 130, 246, 0.1);
  color: var(--accent-blue);
  border-color: rgba(59, 130, 246, 0.25);
}

/* ----- Section Headers ----- */
.section-header { margin-bottom: 3rem; }
.section-header__eyebrow {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent-cyan);
  margin-bottom: 0.5rem;
}
.section-header__title { margin-bottom: 0.75rem; }
.section-header__subtitle { color: var(--text-secondary); max-width: 600px; }

/* ----- Footer ----- */
.footer {
  background-color: var(--bg-secondary);
  border-top: 1px solid var(--border);
  padding: 2rem 0;
}

.footer__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  text-align: center;
}

.footer__links {
  display: flex;
  gap: 1.5rem;
  list-style: none;
}

.footer__links a {
  color: var(--text-secondary);
  font-size: 0.875rem;
  transition: color var(--transition);
}
.footer__links a:hover { color: var(--text-primary); }

.footer__copy {
  color: var(--text-secondary);
  font-size: 0.8rem;
}

/* ----- Page Hero (inner pages) — parallax support ----- */
.page-hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding-top: 5rem;
  padding-bottom: 4rem;
  position: relative;
  overflow: hidden;
}

.page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 55% 65% at 70% 50%, rgba(0, 212, 255, 0.08) 0%, transparent 65%),
    radial-gradient(ellipse 35% 45% at 15% 80%, rgba(59, 130, 246, 0.06) 0%, transparent 60%);
  pointer-events: none;
  z-index: 0;
  transform: translateY(var(--hero-parallax, 0px));
  will-change: transform;
}

.page-hero .container {
  position: relative;
  z-index: 1;
  will-change: transform, opacity;
}

/* ----- Terminal Widget ----- */
.terminal {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  font-family: var(--font-mono);
  font-size: 0.85rem;
}

.terminal__bar {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  background-color: var(--surface);
  padding: 0.6rem 1rem;
  border-bottom: 1px solid var(--border);
}

.terminal__dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}
.terminal__dot--red    { background: #FF5F57; }
.terminal__dot--yellow { background: #FFBD2E; }
.terminal__dot--green  { background: #28C840; }

.terminal__title {
  margin-left: auto;
  font-size: 0.75rem;
  color: var(--text-secondary);
}

.terminal__body {
  padding: 1.25rem 1.25rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}

.terminal__prompt { color: var(--accent-green); font-weight: 600; }
.terminal__prompt::after { content: ' '; }

.terminal__output {
  color: var(--text-secondary);
  padding-left: 1rem;
}

.terminal__cursor { animation: blink 1s step-end infinite; }

@keyframes blink { 50% { opacity: 0; } }

/* ----- Animations ----- */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}

.animate-fade-up {
  animation: fadeInUp 0.6s ease both;
}

.animate-delay-1 { animation-delay: 0.1s; }
.animate-delay-2 { animation-delay: 0.2s; }
.animate-delay-3 { animation-delay: 0.3s; }
.animate-delay-4 { animation-delay: 0.4s; }
.animate-delay-5 { animation-delay: 0.5s; }

/* Intersection Observer triggered fade */
.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}
.reveal.visible {
  opacity: 1;
  transform: none;
}

/* ----- Card Tags ----- */
.card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: 0.5rem;
}

/* ----- Contact Strip ----- */
.contact-strip { padding: 3.5rem 0; }
.contact-strip__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1.5rem;
}
.contact-strip__actions { display: flex; flex-wrap: wrap; gap: 0.75rem; }

@media (max-width: 640px) {
  .contact-strip__inner { flex-direction: column; align-items: flex-start; }
}

/* ----- Shared Page Hero Elements ----- */
.page-hero__eyebrow {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent-cyan);
  margin-bottom: 0.75rem;
}

/* ----- Shared Section Nav Pills ----- */
.hero__nav-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 2.25rem;
  padding-top: 1.75rem;
  border-top: 1px solid var(--border);
}

.hero__pill {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.4rem 1rem;
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 500;
  background-color: rgba(255, 255, 255, 0.04);
  color: var(--text-secondary);
  border: 1px solid var(--border);
  transition: background-color 200ms ease, color 200ms ease, border-color 200ms ease;
  text-decoration: none;
}

.hero__pill::after {
  content: '↓';
  font-size: 0.65rem;
  opacity: 0.5;
}

.hero__pill:hover {
  background-color: rgba(0, 212, 255, 0.08);
  color: var(--text-primary);
  border-color: rgba(0, 212, 255, 0.4);
}