/* ============================================================
   style.css — Abdulmajeed AL-Naam Portfolio
   Dark Theme | Glassmorphism | Smooth Animations
   ============================================================ */


/* ── Reset & Root Variables ─────────────────────────────────── */

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

:root {
  /* Colors */
  --clr-bg:           #0a0e1a;
  --clr-bg-2:         #0f1528;
  --clr-surface:      rgba(255, 255, 255, 0.05);
  --clr-surface-2:    rgba(255, 255, 255, 0.08);
  --clr-border:       rgba(255, 255, 255, 0.10);
  --clr-accent:       #6c63ff;
  --clr-accent-2:     #a78bfa;
  --clr-accent-glow:  rgba(108, 99, 255, 0.35);
  --clr-text:         #e2e8f0;
  --clr-text-muted:   #94a3b8;
  --clr-white:        #ffffff;

  /* Typography */
  --font-main: 'Inter', sans-serif;
  --fs-xs:   0.75rem;
  --fs-sm:   0.875rem;
  --fs-base: 1rem;
  --fs-lg:   1.125rem;
  --fs-xl:   1.25rem;
  --fs-2xl:  1.5rem;
  --fs-3xl:  1.875rem;
  --fs-4xl:  2.25rem;
  --fs-5xl:  3rem;

  /* Spacing */
  --space-xs:  0.5rem;
  --space-sm:  1rem;
  --space-md:  1.5rem;
  --space-lg:  2rem;
  --space-xl:  3rem;
  --space-2xl: 4rem;

  /* Border Radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;

  /* Transitions */
  --transition:      0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}


/* ── Base ────────────────────────────────────────────────────── */

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

body {
  font-family: var(--font-main);
  background-color: var(--clr-bg);
  /* Dark gradient overlay on top of background image for text readability */
  background-image: linear-gradient(
      to bottom,
      rgba(10, 14, 26, 0.75) 0%,
      rgba(10, 14, 26, 0.85) 60%,
      rgba(10, 14, 26, 0.95) 100%
    ),
    url('images/c0a3d727-9499-42b7-9a91-d9703e6506fb.jpg');
  background-size: cover;
  background-position: center;
  background-attachment: fixed; /* Parallax effect */
  color: var(--clr-text);
  line-height: 1.6;
  overflow-x: hidden;
}

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

ul {
  list-style: none;
}

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


/* ── Scrollbar ───────────────────────────────────────────────── */

::-webkit-scrollbar        { width: 6px; }
::-webkit-scrollbar-track  { background: var(--clr-bg); }
::-webkit-scrollbar-thumb  { background: var(--clr-accent); border-radius: 99px; }


/* ── Navbar ──────────────────────────────────────────────────── */

.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.1rem 2.5rem;
  background: rgba(10, 14, 26, 0.6);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px); /* Safari support */
  border-bottom: 1px solid var(--clr-border);
  transition: background var(--transition), padding var(--transition);
}

/* Added via JS on scroll > 50px */
.navbar.scrolled {
  background: rgba(10, 14, 26, 0.92);
  padding: 0.75rem 2.5rem;
}

.nav-logo {
  font-size: var(--fs-xl);
  font-weight: 800;
  letter-spacing: 2px;
  /* Gradient text */
  background: linear-gradient(135deg, var(--clr-accent), var(--clr-accent-2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  cursor: pointer;
}

.nav-links {
  display: flex;
  gap: var(--space-md);
  align-items: center;
}

.nav-links li a {
  font-size: var(--fs-sm);
  font-weight: 500;
  color: var(--clr-text-muted);
  transition: color var(--transition);
  position: relative;
  padding-bottom: 4px;
}

/* Animated underline on hover / active */
.nav-links li a::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--clr-accent), var(--clr-accent-2));
  border-radius: 99px;
  transition: width var(--transition);
}

.nav-links li a:hover,
.nav-links li a.active {
  color: var(--clr-white);
}

.nav-links li a:hover::after,
.nav-links li a.active::after {
  width: 100%;
}

/* Hamburger button — hidden on desktop, shown on mobile */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--clr-text);
  border-radius: 99px;
  transition: transform var(--transition), opacity var(--transition);
}

/* Animate 3 lines into an X when open */
.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 {
  position: relative;
  height: 100vh;
  min-height: 600px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  overflow: hidden;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  /* Additional gradient on top of the body background-image overlay */
  background: linear-gradient(to bottom,
    rgba(10, 14, 26, 0.1) 0%,
    rgba(10, 14, 26, 0.5) 60%,
    rgba(10, 14, 26, 0.8) 100%
  );
}

.hero-content {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
  animation: fadeUp 0.9s ease both;
}

.profile-img-wrapper {
  width: 130px;
  height: 130px;
  border-radius: 50%;
  overflow: hidden;
  border: 3px solid var(--clr-accent);
  box-shadow: 0 0 0 6px var(--clr-accent-glow);
  margin-bottom: var(--space-xs);
  transition: transform var(--transition), box-shadow var(--transition);
}

.profile-img-wrapper:hover {
  transform: scale(1.06);
  box-shadow: 0 0 0 10px var(--clr-accent-glow);
}

.profile-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  /* Zoom in to frame the face specifically */
  transform-origin: 85% 43%;
  transform: scale(2);
}

/* Shown via JS if the image fails to load */
.profile-placeholder {
  display: none;
  width: 100%;
  height: 100%;
  align-items: center;
  justify-content: center;
  background: var(--clr-surface-2);
  font-size: 3rem;
  color: var(--clr-accent);
}

.hero-name {
  /* Fluid type: scales between 30px and 48px */
  font-size: clamp(var(--fs-3xl), 6vw, var(--fs-5xl));
  font-weight: 800;
  letter-spacing: -1px;
  background: linear-gradient(135deg, var(--clr-white) 30%, var(--clr-accent-2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-title {
  font-size: var(--fs-lg);
  color: var(--clr-accent-2);
  font-weight: 500;
  letter-spacing: 1px;
}

.hero-location {
  font-size: var(--fs-sm);
  color: var(--clr-text-muted);
  display: flex;
  align-items: center;
  gap: 6px;
}

.hero-location i { color: var(--clr-accent); }

.hero-buttons {
  display: flex;
  gap: var(--space-sm);
  flex-wrap: wrap;
  justify-content: center;
  margin-top: var(--space-sm);
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 0.7rem 1.6rem;
  border-radius: var(--radius-lg);
  font-size: var(--fs-sm);
  font-weight: 600;
  font-family: var(--font-main);
  border: none;
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition);
}

.btn:hover { transform: translateY(-2px); }

.btn-linkedin {
  background: linear-gradient(135deg, #0077b5, #005d8f);
  color: var(--clr-white);
  box-shadow: 0 4px 20px rgba(0, 119, 181, 0.4);
}
.btn-linkedin:hover { box-shadow: 0 8px 30px rgba(0, 119, 181, 0.6); }

.btn-contact {
  background: linear-gradient(135deg, var(--clr-accent), var(--clr-accent-2));
  color: var(--clr-white);
  box-shadow: 0 4px 20px var(--clr-accent-glow);
}
.btn-contact:hover { box-shadow: 0 8px 30px rgba(108, 99, 255, 0.6); }

.scroll-down {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  font-size: var(--fs-xl);
  color: var(--clr-accent);
  animation: bounce 2s infinite;
  cursor: pointer;
}


/* ── Shared Section Styles ───────────────────────────────────── */

.section {
  padding: var(--space-2xl) var(--space-lg);
  background: transparent;
}

/* Adds top padding to clear the fixed navbar */
.page-section {
  padding-top: calc(var(--space-2xl) + 80px);
  min-height: 100vh;
}

.container {
  max-width: 1000px;
  margin: 0 auto;
}

.section-title {
  font-size: var(--fs-3xl);
  font-weight: 700;
  text-align: center;
  margin-bottom: var(--space-xs);
  background: linear-gradient(135deg, var(--clr-white), var(--clr-accent-2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-line {
  width: 60px;
  height: 4px;
  border-radius: 99px;
  background: linear-gradient(90deg, var(--clr-accent), var(--clr-accent-2));
  margin: 0 auto var(--space-xl);
}


/* ── About ───────────────────────────────────────────────────── */

.about-card {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-xl);
  padding: var(--space-xl);
  display: flex;
  gap: var(--space-lg);
  align-items: flex-start;
  backdrop-filter: blur(10px);
  transition: transform var(--transition), box-shadow var(--transition);
}
.about-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 40px rgba(108, 99, 255, 0.15);
}

.about-icon {
  font-size: 2.5rem;
  color: var(--clr-accent);
  flex-shrink: 0;
  margin-top: 4px;
}

.about-text {
  font-size: var(--fs-base);
  color: var(--clr-text-muted);
  line-height: 1.8;
}
.about-text strong {
  color: var(--clr-accent-2);
  font-weight: 600;
}


/* ── Timeline (Experience) ───────────────────────────────────── */

.timeline {
  position: relative;
  padding-left: 2rem;
}

/* Vertical line running the full height of the timeline */
.timeline::before {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--clr-accent), transparent);
  border-radius: 99px;
}

.timeline-item {
  position: relative;
  margin-bottom: var(--space-xl);
}

/* Dot sitting on the vertical line */
.timeline-dot {
  position: absolute;
  left: -2.45rem;
  top: 1.2rem;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--clr-accent);
  box-shadow: 0 0 0 4px var(--clr-accent-glow);
}

.timeline-card {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  backdrop-filter: blur(10px);
  transition: transform var(--transition), box-shadow var(--transition);
}
.timeline-card:hover {
  transform: translateX(6px);
  box-shadow: 0 12px 35px rgba(108, 99, 255, 0.15);
}

.timeline-date {
  font-size: var(--fs-xs);
  color: var(--clr-accent-2);
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: var(--space-xs);
}

.timeline-title {
  font-size: var(--fs-lg);
  font-weight: 700;
  color: var(--clr-white);
  margin-bottom: 4px;
}

.timeline-company {
  font-size: var(--fs-sm);
  color: var(--clr-text-muted);
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: var(--space-sm);
}

.timeline-list {
  list-style: disc;
  padding-left: 1.2rem;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.timeline-list li {
  font-size: var(--fs-sm);
  color: var(--clr-text-muted);
  line-height: 1.6;
}


/* ── Education ───────────────────────────────────────────────── */

.edu-card {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-xl);
  padding: var(--space-xl);
  display: flex;
  gap: var(--space-lg);
  align-items: flex-start;
  margin-bottom: var(--space-xl);
  backdrop-filter: blur(10px);
  transition: transform var(--transition), box-shadow var(--transition);
}
.edu-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 40px rgba(108, 99, 255, 0.15);
}

.edu-icon {
  font-size: 2.5rem;
  color: var(--clr-accent-2);
  flex-shrink: 0;
}

.edu-degree {
  font-size: var(--fs-xl);
  font-weight: 700;
  color: var(--clr-white);
  margin-bottom: 6px;
}

.edu-university {
  font-size: var(--fs-sm);
  color: var(--clr-text-muted);
  margin-bottom: 6px;
}

.edu-date {
  font-size: var(--fs-xs);
  color: var(--clr-accent-2);
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: var(--space-sm);
}

.gpa-wrapper  { margin-top: var(--space-sm); }
.gpa-label {
  font-size: var(--fs-sm);
  font-weight: 600;
  color: var(--clr-accent-2);
  display: block;
  margin-bottom: 6px;
}

.subsection-title {
  font-size: var(--fs-xl);
  font-weight: 700;
  color: var(--clr-white);
  margin-bottom: var(--space-lg);
  text-align: center;
}

.courses-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-lg);
}

.course-card {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  backdrop-filter: blur(10px);
  transition: transform var(--transition), box-shadow var(--transition);
}
.course-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 14px 36px rgba(108, 99, 255, 0.18);
}

.course-icon {
  font-size: 2rem;
  color: var(--clr-accent);
  margin-bottom: var(--space-sm);
}

.course-name {
  font-size: var(--fs-base);
  font-weight: 700;
  color: var(--clr-white);
  margin-bottom: 6px;
}

.course-provider {
  font-size: var(--fs-xs);
  color: var(--clr-accent-2);
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: var(--space-sm);
}

.course-list {
  list-style: disc;
  padding-left: 1.2rem;
  display: flex;
  flex-direction: column;
  gap: 5px;
}
.course-list li {
  font-size: var(--fs-xs);
  color: var(--clr-text-muted);
}


/* ── Skills ──────────────────────────────────────────────────── */

.skills-wrapper {
  display: flex;
  flex-direction: column;
  gap: var(--space-xl);
}

.skills-group {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-xl);
  padding: var(--space-xl);
  backdrop-filter: blur(10px);
  transition: transform var(--transition), box-shadow var(--transition);
}
.skills-group:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 32px rgba(108, 99, 255, 0.12);
}

.skills-group-title {
  font-size: var(--fs-base);
  font-weight: 700;
  color: var(--clr-white);
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: var(--space-md);
}
.skills-group-title i { color: var(--clr-accent); }

.skills-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
}

/* Pill-shaped tag */
.skill-tag {
  display: inline-block;
  padding: 0.4rem 1rem;
  border-radius: 99px;
  font-size: var(--fs-xs);
  font-weight: 600;
  cursor: default;
  transition: transform var(--transition), box-shadow var(--transition);
}
.skill-tag:hover { transform: translateY(-2px); }

.skill-tag.tech {
  background: rgba(108, 99, 255, 0.15);
  border: 1px solid rgba(108, 99, 255, 0.40);
  color: var(--clr-accent-2);
}
.skill-tag.tech:hover { box-shadow: 0 4px 14px rgba(108, 99, 255, 0.3); }

.skill-tag.lang {
  background: rgba(251, 191, 36, 0.10);
  border: 1px solid rgba(251, 191, 36, 0.35);
  color: #fcd34d;
}
.skill-tag.lang:hover { box-shadow: 0 4px 14px rgba(251, 191, 36, 0.25); }


/* ── Contact ─────────────────────────────────────────────────── */

.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-md);
}

.contact-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: var(--space-xs);
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-xl);
  padding: var(--space-xl) var(--space-md);
  backdrop-filter: blur(10px);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
  color: var(--clr-text);
}
.contact-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 40px rgba(108, 99, 255, 0.2);
  border-color: var(--clr-accent);
}

.contact-icon {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--clr-accent), var(--clr-accent-2));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--fs-xl);
  color: var(--clr-white);
  transition: transform var(--transition);
}
.contact-card:hover .contact-icon { transform: rotate(-10deg) scale(1.1); }

.contact-label {
  font-size: var(--fs-sm);
  font-weight: 700;
  color: var(--clr-white);
}

.contact-value {
  font-size: var(--fs-xs);
  color: var(--clr-text-muted);
  word-break: break-all;
}


/* ── Footer ──────────────────────────────────────────────────── */

.footer {
  background: rgba(15, 21, 40, 0.6);
  backdrop-filter: blur(10px);
  border-top: 1px solid var(--clr-border);
  padding: var(--space-lg) var(--space-xl);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.footer p {
  font-size: var(--fs-sm);
  color: var(--clr-text-muted);
}

.footer-socials {
  display: flex;
  gap: 1.2rem;
  align-items: center;
}

.footer-icon {
  font-size: var(--fs-xl);
  color: var(--clr-text-muted);
  transition: color var(--transition), transform var(--transition);
}
.footer-icon:hover           { transform: scale(1.2); }
.footer-icon.linkedin:hover  { color: #0077b5; }
.footer-icon.email:hover     { color: #ea4335; }
.footer-icon.phone:hover     { color: #34d399; }


/* ── Animations ──────────────────────────────────────────────── */

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(30px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50%       { transform: translateX(-50%) translateY(10px); }
}

/* Scroll-triggered reveal — JS adds .visible when element enters viewport */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}


/* ── Responsive ──────────────────────────────────────────────── */

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

  .nav-toggle { display: flex; }

  .nav-links {
    position: fixed;
    top: 68px; left: 0; right: 0;
    background: rgba(10, 14, 26, 0.97);
    backdrop-filter: blur(18px);
    flex-direction: column;
    gap: 0;
    padding: 0;
    /* Slide-down effect: from 0 height to 400px */
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-slow), padding var(--transition);
  }
  .nav-links.open {
    max-height: 400px;
    padding: 1rem 0;
  }

  .nav-links li a {
    display: block;
    padding: 0.75rem 2rem;
    font-size: var(--fs-base);
  }
  .nav-links li a::after { display: none; }

  .about-card,
  .edu-card { flex-direction: column; }

  .timeline { padding-left: 1.5rem; }
  .timeline-dot { left: -2rem; }

  .footer { flex-direction: column; text-align: center; }
}

@media (max-width: 480px) {
  .section    { padding: var(--space-xl) var(--space-sm); }
  .hero-name  { font-size: var(--fs-3xl); }
}