/* ==========================================================================
   Omar Ahmed — Portfolio | Design System & Styles
   Color Palette inspired by Odoo: Primary #714B67, Accent #017E84
   ========================================================================== */

/* ---------- Google Font ---------- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=JetBrains+Mono:wght@400;500;600&display=swap');

/* ==========================================================================
   1. CSS Custom Properties (Design Tokens)
   ========================================================================== */

:root {
  /* --- Brand Colors --- */
  --clr-primary:       #714B67;
  --clr-primary-light: #8f6585;
  --clr-primary-dark:  #5a3a52;
  --clr-accent:        #017E84;
  --clr-accent-light:  #02a5ad;
  --clr-accent-dark:   #015f64;

  /* --- Light Theme (default) --- */
  --bg-body:           #f8f7fa;
  --bg-surface:        #ffffff;
  --bg-surface-alt:    #f1eff3;
  --bg-glass:          rgba(255, 255, 255, 0.65);
  --bg-glass-border:   rgba(113, 75, 103, 0.12);
  --text-primary:      #1e1e2e;
  --text-secondary:    #555568;
  --text-muted:        #8888a0;
  --border-color:      #e2dfe6;
  --shadow-sm:         0 1px 3px rgba(0, 0, 0, 0.06);
  --shadow-md:         0 4px 16px rgba(0, 0, 0, 0.08);
  --shadow-lg:         0 12px 40px rgba(0, 0, 0, 0.1);
  --shadow-glow:       0 0 40px rgba(113, 75, 103, 0.15);

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

  /* --- Spacing Scale --- */
  --space-xs:  0.25rem;
  --space-sm:  0.5rem;
  --space-md:  1rem;
  --space-lg:  1.5rem;
  --space-xl:  2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 6rem;

  /* --- Border Radius --- */
  --radius-sm:   6px;
  --radius-md:   10px;
  --radius-lg:   16px;
  --radius-xl:   24px;
  --radius-full: 9999px;

  /* --- Transitions --- */
  --transition-fast:   150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base:   250ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow:   400ms cubic-bezier(0.4, 0, 0.2, 1);

  /* --- Layout --- */
  --max-width:  1440px;
  --nav-height: 72px;
}

/* --- Dark Theme --- */
[data-theme="dark"] {
  --bg-body:         #0f0e17;
  --bg-surface:      #1a1927;
  --bg-surface-alt:  #242336;
  --bg-glass:        rgba(26, 25, 39, 0.75);
  --bg-glass-border: rgba(1, 126, 132, 0.2);
  --text-primary:    #fffffe;
  --text-secondary:  #b8b8cc;
  --text-muted:      #6b6b80;
  --border-color:    #2e2d42;
  --shadow-sm:       0 1px 3px rgba(0, 0, 0, 0.3);
  --shadow-md:       0 4px 16px rgba(0, 0, 0, 0.4);
  --shadow-lg:       0 12px 40px rgba(0, 0, 0, 0.5);
  --shadow-glow:     0 0 60px rgba(1, 126, 132, 0.2);
}


/* ==========================================================================
   2. Reset & Base
   ========================================================================== */

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--nav-height);
}

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

a {
  color: var(--clr-accent);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--clr-accent-light);
}

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

ul, ol {
  list-style: none;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

::selection {
  background: var(--clr-primary);
  color: #fff;
}


/* ==========================================================================
   3. Utility Classes
   ========================================================================== */

.container {
  width: 90%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-xl);
}

.section {
  padding: var(--space-4xl) 0;
}

.section__label {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--clr-accent);
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: var(--space-md);
}

.section__label::before {
  content: '';
  width: 24px;
  height: 2px;
  background: var(--clr-accent);
  border-radius: 1px;
}

.section__title {
  font-size: clamp(1.8rem, 4vw, 2.5rem);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: var(--space-lg);
  color: var(--text-primary);
}

.section__subtitle {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 640px;
  line-height: 1.8;
}

/* Gradient text utility */
.gradient-text {
  background: linear-gradient(135deg, var(--clr-primary), var(--clr-accent));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}


/* ==========================================================================
   4. Navigation
   ========================================================================== */

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  z-index: 1000;
  transition: background-color var(--transition-base),
              box-shadow var(--transition-base),
              backdrop-filter var(--transition-base);
}

.navbar.scrolled {
  background: var(--bg-glass);
  backdrop-filter: blur(20px) saturate(1.8);
  -webkit-backdrop-filter: blur(20px) saturate(1.8);
  box-shadow: var(--shadow-sm);
  border-bottom: 1px solid var(--bg-glass-border);
}

.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.nav__logo {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--text-primary);
  letter-spacing: -0.5px;
  transition: color var(--transition-fast);
}

.nav__logo span {
  color: var(--clr-accent);
}

.nav__links {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
}

.nav__link {
  position: relative;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color var(--transition-fast);
  padding: var(--space-xs) 0;
}

.nav__link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--clr-primary), var(--clr-accent));
  border-radius: 1px;
  transition: width var(--transition-base);
}

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

.nav__link:hover::after,
.nav__link.active::after {
  width: 100%;
}

/* Theme toggle button */
.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  background: var(--bg-surface-alt);
  color: var(--text-secondary);
  transition: all var(--transition-fast);
  border: 1px solid var(--border-color);
}

.theme-toggle:hover {
  color: var(--clr-accent);
  border-color: var(--clr-accent);
  transform: rotate(15deg);
}

.theme-toggle svg {
  width: 18px;
  height: 18px;
}

/* Mobile menu toggle */
.nav__mobile-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: var(--space-sm);
}

.nav__mobile-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: all var(--transition-fast);
}

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


/* ==========================================================================
   5. Hero Section
   ========================================================================== */

.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding-top: var(--nav-height);
}

/* Decorative background blobs */
.hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  overflow: hidden;
  pointer-events: none;
}

.hero__blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.3;
  animation: blob-float 8s ease-in-out infinite alternate;
}

.hero__blob--1 {
  width: 500px;
  height: 500px;
  background: var(--clr-primary);
  top: -10%;
  right: -5%;
  animation-delay: 0s;
}

.hero__blob--2 {
  width: 400px;
  height: 400px;
  background: var(--clr-accent);
  bottom: -10%;
  left: -5%;
  animation-delay: -3s;
}

.hero__blob--3 {
  width: 300px;
  height: 300px;
  background: linear-gradient(135deg, var(--clr-primary), var(--clr-accent));
  top: 40%;
  left: 50%;
  animation-delay: -5s;
}

@keyframes blob-float {
  0%   { transform: translate(0, 0) scale(1); }
  100% { transform: translate(30px, -30px) scale(1.1); }
}

.hero .container {
  position: relative;
  z-index: 1;
}

/* Two-column hero layout */
.hero__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3xl);
  align-items: center;
}

.hero__content {
  max-width: 720px;
}

/* --- Personal Photo --- */
.hero__photo-wrapper {
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.hero__photo {
  width: 340px;
  height: 340px;
  border-radius: 50%;
  overflow: hidden;
  position: relative;
  z-index: 2;
  border: 4px solid transparent;
  background-clip: padding-box;
  box-shadow: var(--shadow-lg),
              0 0 60px rgba(113, 75, 103, 0.15),
              0 0 100px rgba(1, 126, 132, 0.1);
  animation: photo-float 6s ease-in-out infinite alternate;
  /* Gradient border trick */
  outline: 4px solid transparent;
  outline-offset: 4px;
  background:
    linear-gradient(var(--bg-body), var(--bg-body)) padding-box,
    linear-gradient(135deg, var(--clr-primary), var(--clr-accent)) border-box;
  border: 4px solid transparent;
}

.hero__photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
}

/* Decorative ring behind photo */
.hero__photo-ring {
  position: absolute;
  width: 380px;
  height: 380px;
  border-radius: 50%;
  border: 2px dashed var(--clr-accent);
  opacity: 0.25;
  z-index: 1;
  animation: ring-spin 30s linear infinite;
}

@keyframes photo-float {
  0%   { transform: translateY(0); }
  100% { transform: translateY(-12px); }
}

@keyframes ring-spin {
  from { transform: rotate(0deg); }
  to   { transform: rotate(360deg); }
}

.hero__greeting {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--clr-accent);
  margin-bottom: var(--space-md);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.hero__greeting::before {
  content: '//';
  opacity: 0.5;
}

.hero__name {
  font-size: clamp(2.5rem, 7vw, 4.5rem);
  font-weight: 900;
  line-height: 1.05;
  letter-spacing: -2px;
  margin-bottom: var(--space-sm);
}

.hero__title {
  font-size: clamp(1.2rem, 3vw, 1.8rem);
  font-weight: 600;
  color: var(--clr-primary);
  margin-bottom: var(--space-lg);
}

[data-theme="dark"] .hero__title {
  color: var(--clr-primary-light);
}

.hero__headline {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 560px;
  line-height: 1.8;
  margin-bottom: var(--space-2xl);
}

.hero__ctas {
  display: flex;
  gap: var(--space-md);
  flex-wrap: wrap;
  margin-bottom: var(--space-2xl);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 14px 28px;
  font-size: 0.9rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.btn svg {
  width: 16px;
  height: 16px;
}

.btn--primary {
  background: linear-gradient(135deg, var(--clr-primary), var(--clr-primary-dark));
  color: #fff;
  box-shadow: 0 4px 15px rgba(113, 75, 103, 0.3);
}

.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(113, 75, 103, 0.4);
  color: #fff;
}

.btn--outline {
  border: 2px solid var(--border-color);
  color: var(--text-primary);
  background: var(--bg-surface);
}

.btn--outline:hover {
  border-color: var(--clr-accent);
  color: var(--clr-accent);
  transform: translateY(-2px);
}

/* Social links row in hero */
.hero__socials {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

.hero__social-link {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-muted);
  transition: color var(--transition-fast);
}

.hero__social-link svg {
  width: 20px;
  height: 20px;
}

.hero__social-link:hover {
  color: var(--clr-accent);
}

/* Scroll indicator */
.hero__scroll-indicator {
  position: absolute;
  bottom: var(--space-2xl);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
  color: var(--text-muted);
  font-size: 0.75rem;
  font-family: var(--font-mono);
  letter-spacing: 1px;
  animation: scroll-bounce 2s ease-in-out infinite;
}

.hero__scroll-indicator svg {
  width: 20px;
  height: 20px;
}

@keyframes scroll-bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50%      { transform: translateX(-50%) translateY(8px); }
}


/* ==========================================================================
   6. About Section
   ========================================================================== */

.about__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3xl);
  align-items: start;
}

.about__text {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.9;
}

.about__stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
  margin-top: var(--space-xl);
}

.stat-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  text-align: center;
  transition: all var(--transition-fast);
}

.stat-card:hover {
  border-color: var(--clr-accent);
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.stat-card__number {
  font-size: 2rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--clr-primary), var(--clr-accent));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1.2;
}

.stat-card__label {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-weight: 500;
  margin-top: var(--space-xs);
}

/* Highlights / key points */
.about__highlights {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

.highlight-card {
  display: flex;
  gap: var(--space-md);
  padding: var(--space-lg);
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  transition: all var(--transition-fast);
}

.highlight-card:hover {
  border-color: var(--clr-primary-light);
  box-shadow: var(--shadow-md);
  transform: translateX(4px);
}

.highlight-card__icon {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, var(--clr-primary), var(--clr-accent));
  color: #fff;
}

.highlight-card__icon svg {
  width: 20px;
  height: 20px;
}

.highlight-card__title {
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: var(--space-xs);
}

.highlight-card__desc {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.6;
}


/* ==========================================================================
   7. Skills Section
   ========================================================================== */

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

.skill-category {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  transition: all var(--transition-fast);
  position: relative;
  overflow: hidden;
}

.skill-category::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--clr-primary), var(--clr-accent));
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.skill-category:hover {
  border-color: var(--clr-accent);
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.skill-category:hover::before {
  opacity: 1;
}

.skill-category__icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  background: var(--bg-surface-alt);
  color: var(--clr-accent);
  margin-bottom: var(--space-md);
  transition: all var(--transition-fast);
}

.skill-category:hover .skill-category__icon {
  background: linear-gradient(135deg, var(--clr-primary), var(--clr-accent));
  color: #fff;
}

.skill-category__icon svg {
  width: 22px;
  height: 22px;
}

.skill-category__title {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: var(--space-md);
}

.skill-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.skill-tag {
  display: inline-block;
  padding: 6px 14px;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-secondary);
  background: var(--bg-surface-alt);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-full);
  transition: all var(--transition-fast);
}

.skill-tag:hover {
  background: var(--clr-primary);
  color: #fff;
  border-color: var(--clr-primary);
  transform: translateY(-2px);
}


/* ==========================================================================
   8. Experience Section
   ========================================================================== */

.experience__timeline {
  position: relative;
  padding-left: var(--space-3xl);
}

/* Timeline vertical line */
.experience__timeline::before {
  content: '';
  position: absolute;
  top: 0;
  left: 15px;
  width: 2px;
  height: 100%;
  background: linear-gradient(180deg, var(--clr-primary), var(--clr-accent), transparent);
  border-radius: 1px;
}

.timeline-item {
  position: relative;
  padding-bottom: var(--space-3xl);
}

.timeline-item:last-child {
  padding-bottom: 0;
}

/* Timeline dot */
.timeline-item::before {
  content: '';
  position: absolute;
  left: calc(-1 * var(--space-3xl) + 10px);
  top: 6px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--clr-accent);
  border: 3px solid var(--bg-body);
  box-shadow: 0 0 0 3px var(--clr-accent);
  z-index: 1;
  transition: background var(--transition-fast);
}

.timeline-item__header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-bottom: var(--space-sm);
}

.timeline-item__role {
  font-size: 1.15rem;
  font-weight: 700;
}

.timeline-item__company {
  color: var(--clr-accent);
  font-weight: 600;
}

.timeline-item__meta {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  flex-wrap: wrap;
}

.timeline-item__date,
.timeline-item__location {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  font-size: 0.8rem;
  font-family: var(--font-mono);
  color: var(--text-muted);
}

.timeline-item__date svg,
.timeline-item__location svg {
  width: 14px;
  height: 14px;
}

.timeline-item__desc {
  color: var(--text-secondary);
  line-height: 1.8;
  margin-top: var(--space-sm);
}

.timeline-item__highlights {
  margin-top: var(--space-md);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.timeline-highlight {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--clr-accent);
  background: rgba(1, 126, 132, 0.08);
  border: 1px solid rgba(1, 126, 132, 0.15);
  border-radius: var(--radius-full);
}

[data-theme="dark"] .timeline-highlight {
  background: rgba(1, 126, 132, 0.12);
  border-color: rgba(1, 126, 132, 0.25);
}


/* ==========================================================================
   9. Projects Section (Case Studies)
   ========================================================================== */

.projects__grid {
  display: flex;
  flex-direction: column;
  gap: var(--space-2xl);
}

.project-card {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2xl);
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  padding: var(--space-2xl);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.project-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--clr-primary), var(--clr-accent));
  transform: scaleX(0);
  transition: transform var(--transition-base);
  transform-origin: left;
}

.project-card:hover {
  border-color: var(--clr-accent);
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.project-card:hover::before {
  transform: scaleX(1);
}

.project-card__visual {
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--bg-surface-alt);
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 260px;
  border: 1px solid var(--border-color);
}

.project-card__visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.project-card__placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-md);
  color: var(--text-muted);
  padding: var(--space-xl);
  text-align: center;
}

.project-card__placeholder svg {
  width: 48px;
  height: 48px;
  opacity: 0.4;
}

.project-card__placeholder span {
  font-size: 0.8rem;
  font-family: var(--font-mono);
}

.project-card__content {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.project-card__badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  width: fit-content;
  padding: 5px 12px;
  font-size: 0.72rem;
  font-weight: 600;
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--clr-primary);
  background: rgba(113, 75, 103, 0.08);
  border: 1px solid rgba(113, 75, 103, 0.15);
  border-radius: var(--radius-full);
  margin-bottom: var(--space-md);
}

[data-theme="dark"] .project-card__badge {
  color: var(--clr-primary-light);
  background: rgba(113, 75, 103, 0.12);
  border-color: rgba(113, 75, 103, 0.25);
}

.project-card__name {
  font-size: 1.35rem;
  font-weight: 800;
  margin-bottom: var(--space-xs);
}

.project-card__tagline {
  font-size: 0.9rem;
  color: var(--clr-accent);
  font-weight: 600;
  margin-bottom: var(--space-md);
}

.project-card__problem-label {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--text-muted);
  margin-bottom: var(--space-xs);
}

.project-card__desc {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: var(--space-lg);
}

.project-card__results {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.result-tag {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 5px 12px;
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--clr-accent);
  background: rgba(1, 126, 132, 0.07);
  border-radius: var(--radius-full);
  border: 1px solid rgba(1, 126, 132, 0.12);
}

.result-tag svg {
  width: 12px;
  height: 12px;
}

/* Alternate card layout (reverse) */
.project-card:nth-child(even) {
  direction: rtl;
}

.project-card:nth-child(even) > * {
  direction: ltr;
}


/* ==========================================================================
   10. Education Section
   ========================================================================== */

.education-card {
  display: flex;
  gap: var(--space-xl);
  padding: var(--space-xl);
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  transition: all var(--transition-fast);
  max-width: 700px;
}

.education-card:hover {
  border-color: var(--clr-accent);
  box-shadow: var(--shadow-md);
}

.education-card__icon {
  flex-shrink: 0;
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, var(--clr-primary), var(--clr-accent));
  color: #fff;
}

.education-card__icon svg {
  width: 24px;
  height: 24px;
}

.education-card__degree {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: var(--space-xs);
}

.education-card__school {
  font-size: 0.9rem;
  color: var(--clr-accent);
  font-weight: 500;
  margin-bottom: var(--space-xs);
}

.education-card__year {
  font-size: 0.8rem;
  font-family: var(--font-mono);
  color: var(--text-muted);
}


/* ==========================================================================
   11. Contact Section
   ========================================================================== */

.contact__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3xl);
  align-items: start;
}

.contact__info {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

.contact__text {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.8;
}

.contact-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.contact-link {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-md) var(--space-lg);
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  transition: all var(--transition-fast);
  color: var(--text-primary);
}

.contact-link:hover {
  border-color: var(--clr-accent);
  transform: translateX(6px);
  box-shadow: var(--shadow-md);
  color: var(--text-primary);
}

.contact-link__icon {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  background: var(--bg-surface-alt);
  color: var(--clr-accent);
  transition: all var(--transition-fast);
}

.contact-link:hover .contact-link__icon {
  background: var(--clr-accent);
  color: #fff;
}

.contact-link__icon svg {
  width: 18px;
  height: 18px;
}

.contact-link__label {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-weight: 500;
}

.contact-link__value {
  font-size: 0.9rem;
  font-weight: 600;
}

/* Contact CTA card */
.contact__cta-card {
  background: linear-gradient(135deg, var(--clr-primary), var(--clr-primary-dark));
  border-radius: var(--radius-xl);
  padding: var(--space-2xl);
  color: #fff;
  text-align: center;
}

.contact__cta-card h3 {
  font-size: 1.5rem;
  font-weight: 800;
  margin-bottom: var(--space-md);
}

.contact__cta-card p {
  font-size: 0.95rem;
  opacity: 0.85;
  line-height: 1.7;
  margin-bottom: var(--space-xl);
}

.btn--white {
  background: #fff;
  color: var(--clr-primary);
  font-weight: 700;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.btn--white:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
  color: var(--clr-primary);
}


/* ==========================================================================
   12. Footer
   ========================================================================== */

.footer {
  padding: var(--space-2xl) 0;
  border-top: 1px solid var(--border-color);
  text-align: center;
}

.footer__content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-md);
}

.footer__copy {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.footer__socials {
  display: flex;
  gap: var(--space-md);
}

.footer__social {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  color: var(--text-muted);
  background: var(--bg-surface-alt);
  border: 1px solid var(--border-color);
  transition: all var(--transition-fast);
}

.footer__social:hover {
  color: #fff;
  background: var(--clr-accent);
  border-color: var(--clr-accent);
  transform: translateY(-2px);
}

.footer__social svg {
  width: 16px;
  height: 16px;
}


/* ==========================================================================
   13. Scroll-Reveal Animations
   ========================================================================== */

.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s cubic-bezier(0.5, 0, 0, 1),
              transform 0.7s cubic-bezier(0.5, 0, 0, 1);
}

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

/* Staggered children */
.reveal-stagger > .reveal {
  transition-delay: calc(var(--reveal-index, 0) * 100ms);
}


/* ==========================================================================
   13b. Phone Contact Popup
   ========================================================================== */

.phone-popup {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 2000;
  align-items: center;
  justify-content: center;
}

.phone-popup.active {
  display: flex;
}

.phone-popup__overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  animation: popup-fade-in 200ms ease-out;
}

.phone-popup__card {
  position: relative;
  z-index: 1;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  padding: var(--space-2xl) var(--space-2xl) var(--space-xl);
  max-width: 360px;
  width: 90%;
  text-align: center;
  box-shadow: var(--shadow-lg);
  animation: popup-scale-in 250ms cubic-bezier(0.34, 1.56, 0.64, 1);
}

.phone-popup__close {
  position: absolute;
  top: var(--space-md);
  right: var(--space-md);
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  color: var(--text-muted);
  transition: all var(--transition-fast);
}

.phone-popup__close:hover {
  background: var(--bg-surface-alt);
  color: var(--text-primary);
}

.phone-popup__close svg {
  width: 18px;
  height: 18px;
}

.phone-popup__title {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: var(--space-xs);
}

.phone-popup__subtitle {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: var(--space-xl);
}

.phone-popup__actions {
  display: flex;
  gap: var(--space-md);
}

.phone-popup__btn {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: 14px 16px;
  font-size: 0.9rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  color: #fff;
}

.phone-popup__btn svg {
  width: 18px;
  height: 18px;
}

.phone-popup__btn--call {
  background: linear-gradient(135deg, var(--clr-primary), var(--clr-primary-dark));
  box-shadow: 0 4px 15px rgba(113, 75, 103, 0.3);
}

.phone-popup__btn--call:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(113, 75, 103, 0.4);
  color: #fff;
}

.phone-popup__btn--whatsapp {
  background: linear-gradient(135deg, #25d366, #128c7e);
  box-shadow: 0 4px 15px rgba(37, 211, 102, 0.3);
}

.phone-popup__btn--whatsapp:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(37, 211, 102, 0.4);
  color: #fff;
}

@keyframes popup-fade-in {
  from { opacity: 0; }
  to   { opacity: 1; }
}

@keyframes popup-scale-in {
  from { opacity: 0; transform: scale(0.9); }
  to   { opacity: 1; transform: scale(1); }
}


/* ==========================================================================
   14. Responsive Design
   ========================================================================== */

@media (max-width: 1024px) {
  .hero__grid {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero__content {
    order: 2;
    margin: 0 auto;
  }

  .hero__photo-wrapper {
    order: 1;
    margin-bottom: var(--space-xl);
  }

  .hero__photo {
    width: 260px;
    height: 260px;
  }

  .hero__photo-ring {
    width: 300px;
    height: 300px;
  }

  .hero__ctas {
    justify-content: center;
  }

  .hero__socials {
    justify-content: center;
  }

  .hero__greeting {
    justify-content: center;
  }

  .about__grid {
    grid-template-columns: 1fr;
    gap: var(--space-2xl);
  }

  .project-card {
    grid-template-columns: 1fr;
  }

  .project-card:nth-child(even) {
    direction: ltr;
  }

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

@media (max-width: 768px) {
  :root {
    --nav-height: 64px;
  }

  .container {
    padding: 0 var(--space-md);
  }

  .section {
    padding: var(--space-3xl) 0;
  }

  /* Mobile nav */
  .nav__mobile-toggle {
    display: flex;
  }

  .nav__links {
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    bottom: 0;
    flex-direction: column;
    background: var(--bg-body);
    padding: var(--space-2xl);
    gap: var(--space-lg);
    transform: translateX(100%);
    transition: transform var(--transition-base);
    z-index: 999;
  }

  .nav__links.open {
    transform: translateX(0);
  }

  .nav__link {
    font-size: 1.1rem;
  }

  /* Hero */
  .hero__photo {
    width: 220px;
    height: 220px;
  }

  .hero__photo-ring {
    width: 260px;
    height: 260px;
  }

  .hero__ctas {
    flex-direction: column;
  }

  .hero__ctas .btn {
    justify-content: center;
  }

  .hero__socials {
    flex-direction: column;
    gap: var(--space-md);
  }

  .hero__scroll-indicator {
    display: none;
  }

  /* About */
  .about__stats {
    grid-template-columns: 1fr 1fr;
  }

  /* Skills */
  .skills__grid {
    grid-template-columns: 1fr;
  }

  /* Timeline */
  .experience__timeline {
    padding-left: var(--space-2xl);
  }

  .timeline-item::before {
    left: calc(-1 * var(--space-2xl) + 8px);
  }

  .experience__timeline::before {
    left: 12px;
  }

  .timeline-item__header {
    flex-direction: column;
  }

  /* Projects */
  .project-card {
    padding: var(--space-lg);
  }

  /* Education */
  .education-card {
    flex-direction: column;
    gap: var(--space-md);
  }

  /* Footer */
  .footer__content {
    flex-direction: column;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .about__stats {
    grid-template-columns: 1fr;
  }
}


/* ==========================================================================
   15. Large Screen Enhancements
   ========================================================================== */

@media (min-width: 1600px) {
  :root {
    --max-width: 1560px;
  }

  .container {
    width: 88%;
  }

  .hero__photo {
    width: 400px;
    height: 400px;
  }

  .hero__photo-ring {
    width: 450px;
    height: 450px;
  }

  .hero__name {
    font-size: 5rem;
  }

  .hero__headline {
    font-size: 1.2rem;
  }

  .section__title {
    font-size: 2.8rem;
  }

  .project-card {
    padding: var(--space-3xl);
  }

  .skills__grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

@media (min-width: 1920px) {
  :root {
    --max-width: 1720px;
  }

  .hero__photo {
    width: 440px;
    height: 440px;
  }

  .hero__photo-ring {
    width: 500px;
    height: 500px;
  }
}