/* ─────────────────────────────────────────
   styles.css — Melek Bahroun Portfolio
   ───────────────────────────────────────── */

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

:root {
  --green:       #5f7f3a;   /* muted olive green */
  --green-light: #b9c7a3;   /* soft sage */
  --green-dark:  #2f3d1f;   /* deep forest */
  --cream:       #e7e3d8;   /* faded warm off-white */
  --charcoal:    #2b2624;   /* dark brown-charcoal */
  --mid:         #6e635d;   /* muted taupe */
  --soft:        #9aa68f;   /* desaturated green-grey */
  --white:       #ffffff;
  --line:        rgba(95, 127, 58, 0.18); /* softer, darker green line */
}

html { scroll-behavior: smooth; }

body {
  background: var(--cream);
  color: var(--charcoal);
  font-family: 'DM Sans', sans-serif;
  font-weight: 300;
  overflow-x: hidden;
}

/* ── NAV ── */
nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.2rem 3rem;
  background: rgba(240, 247, 230, 0.88);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
  transition: background 0.3s;
}

nav.scrolled {
  background: rgba(240, 247, 230, 0.97);
  box-shadow: 0 2px 20px rgba(71, 98, 34, 0.08);
}

.nav-logo {
  font-family: 'Playfair Display', serif;
  font-size: 1.1rem;
  letter-spacing: 0.05em;
  color: var(--green-dark);
  text-decoration: none;
}

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

.nav-links a {
  font-family: 'DM Mono', monospace;
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--mid);
  text-decoration: none;
  transition: color 0.2s;
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -3px; left: 0;
  width: 0; height: 1px;
  background: var(--green);
  transition: width 0.25s;
}

.nav-links a:hover { color: var(--green-dark); }
.nav-links a:hover::after { width: 100%; }

/* Mobile hamburger */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 4px;
}

.nav-toggle span {
  display: block;
  width: 22px; height: 2px;
  background: var(--green-dark);
  border-radius: 2px;
  transition: all 0.3s;
}

.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ── HERO ── */
.hero {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1fr 1fr;
  padding-top: 5rem;
}

.hero-left {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 5rem 4rem 5rem 6rem;
}

.hero-tag {
  font-family: 'DM Mono', monospace;
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--green);
  margin-bottom: 1.5rem;
}

.hero-name {
  font-family: 'Playfair Display', serif;
  font-size: clamp(3rem, 5vw, 5rem);
  font-weight: 700;
  line-height: 1.05;
  color: var(--charcoal);
  margin-bottom: 1.2rem;
}

.hero-name em {
  font-style: italic;
  color: var(--green-dark);
}

.hero-bio {
  font-size: 1rem;
  line-height: 1.85;
  color: var(--mid);
  max-width: 420px;
  margin-bottom: 2.5rem;
}

.hero-cta {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--green);
  color: var(--white);
  padding: 0.75rem 1.8rem;
  border-radius: 3px;
  font-family: 'DM Mono', monospace;
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  text-decoration: none;
  transition: background 0.2s, transform 0.2s, box-shadow 0.2s;
}

.btn-primary:hover {
  background: var(--green-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(71, 98, 34, 0.25);
}

.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  border: 1px solid var(--green);
  color: var(--green-dark);
  padding: 0.75rem 1.8rem;
  border-radius: 3px;
  font-family: 'DM Mono', monospace;
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  text-decoration: none;
  transition: background 0.2s, transform 0.2s;
}

.btn-ghost:hover {
  background: rgba(136, 188, 66, 0.08);
  transform: translateY(-2px);
}

.hero-right {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.hero-bg-shape {
  position: absolute;
  width: 480px; height: 480px;
  border-radius: 60% 40% 55% 45% / 50% 60% 40% 50%;
  background: linear-gradient(135deg, var(--green-light) 0%, var(--soft) 60%, var(--green) 100%);
  opacity: 0.22;
  animation: morphBlob 8s ease-in-out infinite;
}

@keyframes morphBlob {
  0%, 100% { border-radius: 60% 40% 55% 45% / 50% 60% 40% 50%; }
  50%       { border-radius: 40% 60% 45% 55% / 60% 40% 60% 40%; }
}

.hero-photo-wrap {
  position: relative;
  z-index: 2;
  width: 320px; height: 320px;
}

.hero-photo-wrap::before {
  content: '';
  position: absolute;
  inset: -8px;
  border: 2px solid var(--green);
  border-radius: 50%;
  opacity: 0.45;
}

.hero-photo-wrap::after {
  content: '';
  position: absolute;
  inset: -20px;
  border: 1px solid var(--green-light);
  border-radius: 50%;
  opacity: 0.35;
}

.hero-photo-wrap img {
  width: 100%; height: 100%;
  object-fit: cover;
  border-radius: 50%;
  filter: saturate(0.92);
}

/* ── SHARED SECTION STYLES ── */
section { padding: 6rem 6rem; }

.section-label {
  font-family: 'DM Mono', monospace;
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--green);
  margin-bottom: 1rem;
}

.section-title {
  font-family: 'Playfair Display', serif;
  font-size: clamp(2rem, 3vw, 2.8rem);
  font-weight: 700;
  color: var(--charcoal);
  margin-bottom: 3rem;
}

/* ── SKILLS ── */
#skills {
  background: var(--charcoal);
}

#skills .section-label { color: var(--green-light); }
#skills .section-title { color: var(--white); }

.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.5rem;
}

.skill-card {
  border: 1px solid rgba(180, 204, 156, 0.18);
  border-radius: 5px;
  padding: 1.8rem;
  transition: border-color 0.25s, background 0.25s, transform 0.25s;
}

.skill-card:hover {
  border-color: var(--green);
  background: rgba(136, 188, 66, 0.07);
  transform: translateY(-3px);
}

.skill-card-label {
  font-family: 'DM Mono', monospace;
  font-size: 0.65rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--green-light);
  margin-bottom: 0.8rem;
}

.skill-card-content {
  font-size: 0.9rem;
  line-height: 1.75;
  color: #d6d3d1;
}

/* ── PROJECTS ── */
#projects { background: var(--white); }

.projects-list {
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
}

.project-card {
  display: grid;
  grid-template-columns: 3fr 1fr;
  gap: 2rem;
  padding: 2.5rem;
  border: 1px solid var(--line);
  border-left: 3px solid var(--green);
  border-radius: 3px;
  transition: box-shadow 0.25s, transform 0.25s;
}

.project-card:hover {
  box-shadow: 0 12px 40px rgba(71, 98, 34, 0.10);
  transform: translateY(-3px);
}

.project-name {
  font-family: 'Playfair Display', serif;
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--charcoal);
  margin-bottom: 0.8rem;
}

.project-desc {
  font-size: 0.9rem;
  line-height: 1.85;
  color: var(--mid);
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: 1.2rem;
}

.tag {
  font-family: 'DM Mono', monospace;
  font-size: 0.63rem;
  letter-spacing: 0.08em;
  padding: 0.28rem 0.65rem;
  background: rgba(136, 188, 66, 0.10);
  color: var(--green-dark);
  border-radius: 3px;
  border: 1px solid rgba(136, 188, 66, 0.25);
}

.project-number {
  font-family: 'Playfair Display', serif;
  font-style: italic;
  font-size: 4rem;
  color: rgba(136, 188, 66, 0.14);
  text-align: right;
  line-height: 1;
  align-self: start;
}

/* ── EDUCATION ── */
.edu-timeline {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.edu-item {
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: 2rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid var(--line);
}

.edu-item:last-child { border-bottom: none; }

.edu-year {
  font-family: 'DM Mono', monospace;
  font-size: 0.75rem;
  color: var(--green);
  letter-spacing: 0.1em;
  padding-top: 0.3rem;
}

.edu-school {
  font-family: 'Playfair Display', serif;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--charcoal);
  margin-bottom: 0.3rem;
}

.edu-degree {
  font-size: 0.88rem;
  color: var(--mid);
  line-height: 1.6;
}

/* ── LANGUAGES ── */
#languages { background: #f4f8ee; }

.lang-grid {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.lang-pill {
  font-family: 'DM Mono', monospace;
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 0.6rem 1.6rem;
  border: 1px solid var(--green);
  border-radius: 50px;
  color: var(--green-dark);
  transition: background 0.2s, color 0.2s;
}

.lang-pill:hover {
  background: var(--green);
  color: var(--white);
}

/* ── CONTACT ── */
#contact { background: var(--green-dark); }
#contact .section-label { color: var(--green-light); }
#contact .section-title { color: var(--white); }

.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 2rem;
}

.contact-item {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.contact-type {
  font-family: 'DM Mono', monospace;
  font-size: 0.63rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--green-light);
}

.contact-val {
  font-size: 0.95rem;
  color: var(--white);
  text-decoration: none;
  transition: color 0.2s;
}

.contact-val:hover { color: var(--green-light); }

/* ── FOOTER ── */
footer {
  text-align: center;
  padding: 2rem;
  background: var(--charcoal);
  font-family: 'DM Mono', monospace;
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  color: var(--soft);
}

/* ── SCROLL REVEAL ANIMATIONS ── */
.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

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

/* Hero staggered entrance */
.hero-left > * {
  animation: fadeUp 0.8s forwards;
  opacity: 0;
}
.hero-left > *:nth-child(1) { animation-delay: 0.10s; }
.hero-left > *:nth-child(2) { animation-delay: 0.25s; }
.hero-left > *:nth-child(3) { animation-delay: 0.40s; }
.hero-left > *:nth-child(4) { animation-delay: 0.55s; }

.hero-right {
  animation: fadeUp 0.9s 0.3s forwards;
  opacity: 0;
}

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

/* ── RESPONSIVE ── */
@media (max-width: 900px) {
  section { padding: 5rem 3rem; }
}

@media (max-width: 768px) {
  nav { padding: 1rem 1.5rem; }

  .nav-links {
    display: none;
    flex-direction: column;
    gap: 0;
    position: absolute;
    top: 100%;
    left: 0; right: 0;
    background: rgba(240, 247, 230, 0.97);
    border-bottom: 1px solid var(--line);
    padding: 0.5rem 0 1rem;
  }

  .nav-links.open { display: flex; }

  .nav-links li a {
    display: block;
    padding: 0.75rem 1.5rem;
  }

  .nav-toggle { display: flex; }

  .hero {
    grid-template-columns: 1fr;
    padding-top: 4.5rem;
  }

  .hero-left {
    padding: 3rem 2rem;
    order: 2;
  }

  .hero-right {
    padding: 3rem 2rem 0;
    min-height: 300px;
    order: 1;
  }

  .hero-photo-wrap { width: 220px; height: 220px; }
  .hero-bg-shape { width: 300px; height: 300px; }

  section { padding: 4rem 1.5rem; }

  .project-card { grid-template-columns: 1fr; }
  .project-number { display: none; }

  .edu-item { grid-template-columns: 1fr; gap: 0.5rem; }
}