/* ============================================
   ZEESHAN ALTAF — PROFILE
   Clean & Premium Dark Theme
   ============================================ */

/* --- Custom Properties --- */
:root {
  /* Base palette */
  --color-bg-primary:    #0a0a0f;
  --color-bg-secondary:  #111118;
  --color-bg-card:       #16161e;
  --color-bg-card-hover: #1c1c26;

  /* Text */
  --color-text-primary:   #f0ece6;
  --color-text-secondary: #9a958e;
  --color-text-tertiary:  #5c5852;

  /* Accent — warm amber */
  --color-accent:         #e8a838;
  --color-accent-light:   #f0c060;
  --color-accent-dim:     rgba(232, 168, 56, 0.15);

  /* Borders & surfaces */
  --color-border:         rgba(240, 236, 230, 0.08);
  --color-border-hover:   rgba(240, 236, 230, 0.15);

  /* Shadows */
  --shadow-card:       0 4px 24px rgba(0, 0, 0, 0.3);
  --shadow-card-hover: 0 8px 40px rgba(0, 0, 0, 0.5);

  /* Spacing */
  --space-xs:  0.5rem;
  --space-sm:  1rem;
  --space-md:  2rem;
  --space-lg:  4rem;
  --space-xl:  6rem;
  --space-2xl: 8rem;

  /* Layout */
  --max-width: 1200px;
  --border-radius: 12px;

  /* Transitions */
  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
  --transition-base: 0.3s var(--ease-out-expo);
  --transition-slow: 0.6s var(--ease-out-expo);

  /* Typography */
  --font-display: 'Syne', sans-serif;
  --font-body:    'Outfit', sans-serif;
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  font-weight: 400;
  font-size: 1.125rem;
  line-height: 1.7;
  color: var(--color-text-primary);
  background-color: var(--color-bg-primary);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

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

ul, ol {
  list-style: none;
}

button, input, textarea {
  font: inherit;
  color: inherit;
  border: none;
  background: none;
}

button {
  cursor: pointer;
}

/* --- Accessibility --- */
.skip-link {
  position: absolute;
  top: -100%;
  left: var(--space-sm);
  padding: var(--space-xs) var(--space-sm);
  background: var(--color-accent);
  color: var(--color-bg-primary);
  font-weight: 600;
  border-radius: 4px;
  z-index: 1000;
  transition: top 0.2s;
}

.skip-link:focus {
  top: var(--space-sm);
}

/* --- Focus Styles --- */
:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
}

/* --- Container --- */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding-inline: clamp(1.5rem, 5vw, 4rem);
}

/* --- Section --- */
.section {
  padding: var(--space-xl) 0;
}

.section-heading {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2rem, 4vw, 3.5rem);
  letter-spacing: -0.02em;
  margin-bottom: var(--space-sm);
  position: relative;
  display: inline-block;
}

.section-heading::after {
  content: '';
  position: absolute;
  bottom: -8px;
  left: 0;
  width: 48px;
  height: 3px;
  background: var(--color-accent);
  border-radius: 2px;
}

.section-intro {
  color: var(--color-text-secondary);
  max-width: 680px;
  margin-bottom: var(--space-lg);
  font-weight: 300;
  font-size: 1.125rem;
  line-height: 1.8;
}

/* ============================================
   NAVIGATION
   ============================================ */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(10, 10, 15, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  transition: transform var(--transition-base);
}


.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: var(--space-sm) clamp(1.5rem, 5vw, 4rem);
}

.nav-logo {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.5rem;
  color: var(--color-accent);
  letter-spacing: -0.02em;
  transition: opacity var(--transition-base);
}

.nav-logo:hover {
  opacity: 0.8;
}

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

.nav-link {
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 0.9rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--color-text-secondary);
  transition: color var(--transition-base);
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 50%;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--color-accent);
  transform: translateX(-50%) scale(0);
  transition: transform var(--transition-base);
}

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

.nav-link:hover::after,
.nav-link.active::after {
  transform: translateX(-50%) scale(1);
}

/* Hamburger */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 4px;
  z-index: 110;
}

.nav-toggle-bar {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text-primary);
  border-radius: 2px;
  transition: transform var(--transition-base), opacity var(--transition-base);
}

/* ============================================
   HERO
   ============================================ */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  position: relative;
  overflow: hidden;
  padding: var(--space-2xl) clamp(1.5rem, 5vw, 4rem);
}

/* Gradient mesh background */
.hero::before {
  content: '';
  position: absolute;
  inset: -20%;
  background:
    radial-gradient(ellipse 60% 50% at 20% 50%, rgba(232, 168, 56, 0.07) 0%, transparent 70%),
    radial-gradient(ellipse 50% 60% at 80% 30%, rgba(100, 80, 200, 0.05) 0%, transparent 70%),
    radial-gradient(ellipse 40% 40% at 50% 80%, rgba(232, 168, 56, 0.04) 0%, transparent 60%);
  animation: meshDrift 15s ease-in-out infinite alternate;
  z-index: 0;
  pointer-events: none;
}

@keyframes meshDrift {
  0%   { transform: translate(0, 0) scale(1); }
  50%  { transform: translate(-3%, 2%) scale(1.05); }
  100% { transform: translate(2%, -1%) scale(1.02); }
}

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

.hero-eyebrow {
  font-family: var(--font-body);
  font-weight: 500;
  font-size: clamp(0.85rem, 1.5vw, 1rem);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-sm);
  animation: fadeInUp 0.8s var(--ease-out-expo) 0.2s both;
}

.hero-name {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2.75rem, 5.5vw, 5rem);
  letter-spacing: -0.03em;
  line-height: 1.05;
  margin-bottom: var(--space-sm);
  animation: fadeInUp 0.8s var(--ease-out-expo) 0.4s both;
}

.hero-tagline {
  font-family: var(--font-body);
  font-weight: 400;
  font-size: clamp(1.05rem, 2vw, 1.3rem);
  color: var(--color-text-secondary);
  max-width: 580px;
  margin: 0 auto;
  animation: fadeInUp 0.8s var(--ease-out-expo) 0.6s both;
}

/* Scroll indicator */
.scroll-indicator {
  position: absolute;
  bottom: var(--space-md);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-xs);
  z-index: 1;
  animation: fadeIn 1s ease 1.2s both;
}

.scroll-text {
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-text-tertiary);
}

.scroll-line {
  width: 1px;
  height: 40px;
  background: var(--color-border-hover);
  position: relative;
  overflow: hidden;
}

.scroll-line::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 10px;
  background: var(--color-accent);
  animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
  0%, 100% { transform: translateY(-4px); opacity: 0.3; }
  50%      { transform: translateY(34px); opacity: 1; }
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(40px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

/* ============================================
   EXPERTISE CARDS
   ============================================ */
.expertise-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-sm);
}

.expertise-card {
  position: relative;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  padding: var(--space-md);
  overflow: hidden;
  transition:
    transform var(--transition-base),
    border-color var(--transition-base),
    box-shadow var(--transition-base);
}

.expertise-card:hover {
  transform: translateY(-4px);
  border-color: var(--color-border-hover);
  box-shadow: var(--shadow-card-hover);
}

.card-number {
  position: absolute;
  top: var(--space-sm);
  right: var(--space-sm);
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 3rem;
  color: var(--color-text-primary);
  opacity: 0.04;
  line-height: 1;
  pointer-events: none;
}

.card-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.25rem;
  margin-bottom: var(--space-xs);
  letter-spacing: -0.01em;
}

.card-desc {
  color: var(--color-text-secondary);
  font-size: 0.95rem;
  line-height: 1.7;
  font-weight: 300;
}

/* ============================================
   PROJECT CARDS
   ============================================ */
.projects-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-sm);
}

.project-card {
  position: relative;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  padding: var(--space-md);
  display: flex;
  flex-direction: column;
  transition:
    transform var(--transition-base),
    border-color var(--transition-base),
    box-shadow var(--transition-base);
}

.project-card:hover {
  transform: translateY(-6px);
  border-color: var(--color-border-hover);
  box-shadow: var(--shadow-card-hover);
}

.project-accent {
  width: 32px;
  height: 3px;
  background: var(--color-accent);
  border-radius: 2px;
  margin-bottom: var(--space-sm);
}

.project-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.5rem;
  letter-spacing: -0.01em;
  margin-bottom: 4px;
}

.project-subtitle {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: var(--space-sm);
}

.project-desc {
  color: var(--color-text-secondary);
  font-size: 0.95rem;
  line-height: 1.7;
  font-weight: 300;
  margin-bottom: var(--space-md);
  flex: 1;
}

.project-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 500;
  font-size: 0.95rem;
  color: var(--color-accent);
  transition: color var(--transition-base);
}

.project-link .arrow {
  display: inline-block;
  transition: transform var(--transition-base);
}

.project-link:hover .arrow {
  transform: translateX(6px);
}

.project-link:hover {
  color: var(--color-accent-light);
}

.project-link--soon {
  color: var(--color-text-tertiary);
  cursor: default;
}

.project-link--soon:hover {
  color: var(--color-text-tertiary);
}

/* ============================================
   AUTOMATION CARDS
   ============================================ */
.automation-stack {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.automation-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-left: 3px solid var(--color-accent);
  border-radius: var(--border-radius);
  padding: var(--space-md);
  transition:
    border-color var(--transition-base),
    box-shadow var(--transition-base);
}

.automation-card:hover {
  border-color: var(--color-border-hover);
  border-left-color: var(--color-accent-light);
  box-shadow: var(--shadow-card);
}

.automation-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.35rem;
  letter-spacing: -0.01em;
  margin-bottom: var(--space-xs);
}

.automation-desc {
  color: var(--color-text-secondary);
  font-size: 0.95rem;
  line-height: 1.7;
  font-weight: 300;
  margin-bottom: var(--space-sm);
}

.agent-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.agent-item {
  padding-left: var(--space-sm);
  border-left: 2px solid var(--color-accent-dim);
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.agent-item strong {
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--color-text-primary);
}

.agent-item span {
  color: var(--color-text-secondary);
  font-size: 0.9rem;
  line-height: 1.6;
  font-weight: 300;
}

/* ============================================
   CONTACT
   ============================================ */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-lg);
}

.form-group {
  margin-bottom: var(--space-sm);
}

.form-label {
  display: block;
  font-weight: 500;
  font-size: 0.85rem;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-xs);
}

.form-input {
  width: 100%;
  padding: 14px 16px;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  color: var(--color-text-primary);
  font-size: 1rem;
  transition:
    border-color var(--transition-base),
    box-shadow var(--transition-base);
}

.form-input::placeholder {
  color: var(--color-text-tertiary);
}

.form-input:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px var(--color-accent-dim);
}

.form-textarea {
  resize: vertical;
  min-height: 120px;
}

.form-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 32px;
  background: var(--color-accent);
  color: var(--color-bg-primary);
  font-weight: 600;
  font-size: 0.9rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border-radius: 8px;
  transition:
    background var(--transition-base),
    transform var(--transition-base),
    box-shadow var(--transition-base);
  margin-top: var(--space-xs);
}

.form-button:hover {
  background: var(--color-accent-light);
  transform: scale(1.02);
  box-shadow: 0 4px 20px rgba(232, 168, 56, 0.3);
}

.form-button:active {
  transform: scale(0.98);
}

/* Social links */
.contact-info-text {
  color: var(--color-text-secondary);
  font-weight: 300;
  margin-bottom: var(--space-md);
}

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

.social-link {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 14px 16px;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  color: var(--color-text-secondary);
  font-weight: 400;
  font-size: 0.95rem;
  transition:
    color var(--transition-base),
    border-color var(--transition-base),
    transform var(--transition-base);
}

.social-link:hover {
  color: var(--color-accent);
  border-color: var(--color-border-hover);
  transform: translateX(4px);
}

.social-icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}

.social-arrow {
  margin-left: auto;
  opacity: 0;
  transition: opacity var(--transition-base), transform var(--transition-base);
}

.social-link:hover .social-arrow {
  opacity: 1;
  transform: translateX(4px);
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
  border-top: 1px solid var(--color-border);
  padding: var(--space-md) 0;
  text-align: center;
}

.footer p {
  color: var(--color-text-tertiary);
  font-size: 0.875rem;
  font-weight: 300;
}

/* ============================================
   SCROLL REVEAL ANIMATIONS
   ============================================ */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition:
    opacity 0.7s var(--ease-out-expo),
    transform 0.7s var(--ease-out-expo);
}

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

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

/* ============================================
   RESPONSIVE — TABLET (768px+)
   ============================================ */
@media (min-width: 768px) {
  .section {
    padding: var(--space-2xl) 0;
  }

  .expertise-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-md);
  }

  .projects-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-md);
  }

  .contact-grid {
    grid-template-columns: 3fr 2fr;
    gap: var(--space-lg);
    align-items: start;
  }
}

/* ============================================
   RESPONSIVE — DESKTOP (1024px+)
   ============================================ */
@media (min-width: 1024px) {
  .automation-stack {
    gap: var(--space-md);
  }
}

/* ============================================
   MOBILE NAV (<768px)
   ============================================ */
@media (max-width: 767px) {
  .nav-toggle {
    display: flex;
  }

  .nav-links {
    position: fixed;
    inset: 0;
    background: rgba(10, 10, 15, 0.97);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-lg);
    opacity: 0;
    visibility: hidden;
    transition:
      opacity var(--transition-slow),
      visibility var(--transition-slow);
    z-index: 105;
  }

  .nav-links.open {
    opacity: 1;
    visibility: visible;
  }

  .nav-links.open .nav-link {
    font-size: 1.5rem;
    letter-spacing: 0.08em;
  }

  /* Hamburger animation */
  .nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }

  .nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(2) {
    opacity: 0;
  }

  .nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }

  /* Third project card spans full on mobile when grid is 1 col */
  .projects-grid {
    gap: var(--space-sm);
  }
}

/* ============================================
   REDUCED MOTION
   ============================================ */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}