/* ==========================================================================
   Akash Bhamare Portfolio — Design System
   Generated via ui-ux-pro-max skill: SaaS Mobile (High-Tech Boutique) style
   Variance 5 · Motion 7 · Density 5 — monochrome + electric blue accent
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Sans:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500;600;700&family=Space+Grotesk:wght@500;600;700&display=swap');

:root {
  /* Colors */
  --color-primary: #18181b;
  --color-on-primary: #ffffff;
  --color-secondary: #3f3f46;
  --color-accent: #2563eb;
  --color-accent-hover: #1d4ed8;
  --color-accent-soft: #eff4ff;
  --color-background: #fafafa;
  --color-surface: #ffffff;
  --color-foreground: #09090b;
  --color-muted: #e8ecf0;
  --color-muted-foreground: #6b7280;
  --color-border: #e4e4e7;
  --color-destructive: #dc2626;
  --color-success: #16a34a;
  --color-ring: #18181b;

  /* Typography */
  --font-heading: 'JetBrains Mono', ui-monospace, monospace;
  --font-body: 'IBM Plex Sans', -apple-system, BlinkMacSystemFont, sans-serif;

  /* Spacing scale */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --space-6: 32px;
  --space-7: 48px;
  --space-8: 64px;
  --space-9: 96px;

  /* Radius */
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-full: 999px;

  /* Motion */
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --ease-standard: cubic-bezier(0.4, 0, 0.2, 1);
  --dur-fast: 150ms;
  --dur-base: 250ms;
  --dur-slow: 450ms;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(9, 9, 11, 0.06);
  --shadow-md: 0 4px 16px rgba(9, 9, 11, 0.08);
  --shadow-lg: 0 12px 40px rgba(9, 9, 11, 0.12);
  --shadow-glow: 0 0 0 4px rgba(37, 99, 235, 0.12);

  --header-height: 64px;
  --container-max: 1180px;
}

@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

* {
  box-sizing: border-box;
}

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

body {
  margin: 0;
  font-family: var(--font-body);
  background: var(--color-background);
  color: var(--color-foreground);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

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

button {
  font-family: inherit;
  cursor: pointer;
}

.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-5);
}

h1, h2, h3, h4 {
  font-family: var(--font-heading);
  font-weight: 600;
  letter-spacing: -0.02em;
  margin: 0;
  color: var(--color-primary);
}

.eyebrow {
  font-family: var(--font-heading);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent);
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
}

.eyebrow::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-accent);
  box-shadow: 0 0 0 3px var(--color-accent-soft);
  animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

/* Focus visibility for keyboard nav */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

/* ---------------- Buttons ---------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 12px 22px;
  border-radius: var(--radius-full);
  font-size: 14px;
  font-weight: 600;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform var(--dur-fast) var(--ease-spring), box-shadow var(--dur-base) var(--ease-standard), background var(--dur-base) var(--ease-standard);
  white-space: nowrap;
}

.btn:active {
  transform: scale(0.96);
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-accent), #4d7cff);
  color: #fff;
  box-shadow: var(--shadow-md);
}

.btn-primary:hover {
  box-shadow: var(--shadow-lg), var(--shadow-glow);
  transform: translateY(-1px);
}

.btn-outline {
  background: transparent;
  color: var(--color-primary);
  border-color: var(--color-border);
}

.btn-outline:hover {
  border-color: var(--color-primary);
  background: var(--color-surface);
}

.btn-ghost {
  background: transparent;
  color: var(--color-secondary);
}

.btn-ghost:hover {
  background: var(--color-muted);
}

.btn-sm {
  padding: 8px 16px;
  font-size: 13px;
}

.btn-danger {
  background: var(--color-destructive);
  color: #fff;
}

.icon {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  stroke-width: 2;
}

/* ---------------- Header ---------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-height);
  display: flex;
  align-items: center;
  background: rgba(250, 250, 250, 0.72);
  backdrop-filter: blur(16px) saturate(180%);
  -webkit-backdrop-filter: blur(16px) saturate(180%);
  border-bottom: 1px solid var(--color-border);
  transition: box-shadow var(--dur-base) var(--ease-standard);
}

.site-header.scrolled {
  box-shadow: var(--shadow-sm);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 16px;
  color: var(--color-primary);
}

.logo-mark {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  background: var(--color-primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  transition: transform var(--dur-base) var(--ease-spring);
}

.brand-animate:hover .logo-mark {
  transform: rotate(-8deg) scale(1.08);
}

/* Brand wordmark: distinct display font + animated gradient sheen on hover */
.brand-text {
  font-family: 'Space Grotesk', var(--font-heading);
  font-weight: 600;
  letter-spacing: -0.01em;
  background: linear-gradient(
    100deg,
    var(--color-primary) 0%,
    var(--color-primary) 40%,
    var(--color-accent) 50%,
    var(--color-primary) 60%,
    var(--color-primary) 100%
  );
  background-size: 220% auto;
  background-position: 0% 50%;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  transition: background-position var(--dur-slow) var(--ease-standard);
}

.brand-animate:hover .brand-text {
  background-position: 100% 50%;
}

.footer-brand .brand-text {
  background: linear-gradient(
    100deg,
    #fff 0%,
    #fff 40%,
    var(--color-accent) 50%,
    #fff 60%,
    #fff 100%
  );
  background-size: 220% auto;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

@media (prefers-reduced-motion: reduce) {
  .brand-animate:hover .logo-mark,
  .brand-animate:hover .brand-text {
    transform: none;
    background-position: 0% 50%;
  }
}

.main-nav {
  display: flex;
  align-items: center;
  gap: var(--space-6);
}

.main-nav a {
  font-size: 14px;
  font-weight: 500;
  color: var(--color-secondary);
  position: relative;
  padding: var(--space-2) 0;
  transition: color var(--dur-fast) var(--ease-standard);
}

.main-nav a:hover {
  color: var(--color-primary);
}

.main-nav a::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 0;
  height: 2px;
  background: var(--color-accent);
  transition: width var(--dur-base) var(--ease-spring);
}

.main-nav a:hover::after {
  width: 100%;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.nav-toggle {
  display: none;
  position: relative;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  background: none;
  border: none;
  padding: 0;
  color: var(--color-primary);
}

.nav-toggle .icon {
  position: absolute;
  transition: opacity var(--dur-fast) var(--ease-standard), transform var(--dur-base) var(--ease-spring);
}

.nav-toggle .icon-close {
  opacity: 0;
  transform: rotate(-90deg) scale(0.5);
}

.nav-toggle[aria-expanded="true"] .icon-open {
  opacity: 0;
  transform: rotate(90deg) scale(0.5);
}

.nav-toggle[aria-expanded="true"] .icon-close {
  opacity: 1;
  transform: rotate(0) scale(1);
}

/* Dimmed backdrop behind the mobile drawer */
.mobile-drawer-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(9, 9, 11, 0.45);
  backdrop-filter: blur(2px);
  -webkit-backdrop-filter: blur(2px);
  z-index: 98;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--dur-base) var(--ease-standard);
}

.mobile-drawer-backdrop.open {
  opacity: 1;
  pointer-events: auto;
}

/* Full-screen mobile nav panel. Positioned as a direct child of <body>
   (not nested under .site-header) so ancestor backdrop-filter/transform
   never hijacks its fixed-positioning containing block. */
.mobile-drawer {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: min(340px, 84vw);
  background: var(--color-background);
  box-shadow: -8px 0 40px rgba(9, 9, 11, 0.15);
  z-index: 99;
  transform: translateX(100%);
  transition: transform var(--dur-slow) var(--ease-spring);
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: var(--space-6) var(--space-6);
  gap: var(--space-7);
}

.mobile-drawer.open {
  transform: translateX(0);
}

.mobile-drawer-nav {
  display: flex;
  flex-direction: column;
}

.mobile-drawer-nav a {
  font-family: var(--font-heading);
  font-size: 26px;
  font-weight: 600;
  color: var(--color-primary);
  padding: var(--space-3) 0;
  border-bottom: 1px solid var(--color-border);
  opacity: 0;
  transform: translateX(24px);
  transition: opacity var(--dur-base) var(--ease-standard), transform var(--dur-base) var(--ease-spring);
}

.mobile-drawer.open .mobile-drawer-nav a {
  opacity: 1;
  transform: translateX(0);
}

.mobile-drawer.open .mobile-drawer-nav a:nth-child(1) { transition-delay: 0.06s; }
.mobile-drawer.open .mobile-drawer-nav a:nth-child(2) { transition-delay: 0.11s; }
.mobile-drawer.open .mobile-drawer-nav a:nth-child(3) { transition-delay: 0.16s; }
.mobile-drawer.open .mobile-drawer-nav a:nth-child(4) { transition-delay: 0.21s; }

.mobile-drawer-cta {
  justify-content: center;
  opacity: 0;
  transform: translateY(16px);
  transition: opacity var(--dur-base) var(--ease-standard), transform var(--dur-base) var(--ease-spring);
  transition-delay: 0.26s;
}

.mobile-drawer.open .mobile-drawer-cta {
  opacity: 1;
  transform: translateY(0);
}

/* Body scroll lock while the drawer is open */
body.drawer-open {
  overflow: hidden;
}

@media (prefers-reduced-motion: reduce) {
  .mobile-drawer-nav a,
  .mobile-drawer-cta {
    transition-delay: 0s !important;
  }
}

@media (max-width: 860px) {
  .main-nav, .nav-actions .btn-outline {
    display: none;
  }
  .nav-toggle {
    display: inline-flex;
  }
}

/* ---------------- Hero ---------------- */
.hero {
  padding: var(--space-9) 0 var(--space-8);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -120px;
  right: -120px;
  width: 420px;
  height: 420px;
  background: radial-gradient(circle, rgba(37, 99, 235, 0.14), transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.hero-content {
  max-width: 720px;
}

.hero h1 {
  font-size: clamp(32px, 6vw, 56px);
  line-height: 1.1;
  margin: var(--space-4) 0;
}

.hero .accent-text {
  color: var(--color-accent);
}

.hero-subtitle {
  font-size: 17px;
  color: var(--color-secondary);
  max-width: 560px;
  margin-bottom: var(--space-6);
}

.hero-actions {
  display: flex;
  gap: var(--space-4);
  flex-wrap: wrap;
}

.hero-badges {
  display: flex;
  gap: var(--space-3);
  flex-wrap: wrap;
  margin-top: var(--space-7);
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-full);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  font-size: 13px;
  font-weight: 500;
  color: var(--color-secondary);
  box-shadow: var(--shadow-sm);
}

/* ---------------- Section shared ---------------- */
.section {
  padding: var(--space-8) 0;
}

.section-head {
  margin-bottom: var(--space-6);
  max-width: 640px;
}

.section-head h2 {
  font-size: clamp(24px, 4vw, 34px);
  margin-top: var(--space-3);
}

.section-head p {
  color: var(--color-muted-foreground);
  margin-top: var(--space-3);
}

.section-alt {
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

/* ---------------- Reveal-on-scroll ---------------- */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity var(--dur-slow) var(--ease-standard), transform var(--dur-slow) var(--ease-spring);
}

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

/* ---------------- Projects grid ---------------- */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: var(--space-5);
}

/* Cap at 4 columns on wide screens instead of stretching cards edge to edge */
@media (min-width: 1100px) {
  .projects-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.project-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform var(--dur-base) var(--ease-spring), box-shadow var(--dur-base) var(--ease-standard), border-color var(--dur-base) var(--ease-standard);
}

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

.project-media {
  aspect-ratio: 16 / 10;
  background: var(--color-muted);
  overflow: hidden;
  position: relative;
}

.project-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--dur-slow) var(--ease-standard);
}

.project-card:hover .project-media img {
  transform: scale(1.05);
}

.project-media.no-image {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-muted-foreground);
}

.project-badge {
  position: absolute;
  top: var(--space-3);
  left: var(--space-3);
  background: rgba(24, 24, 27, 0.85);
  color: #fff;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 4px 10px;
  border-radius: var(--radius-full);
  backdrop-filter: blur(6px);
}

.project-body {
  padding: var(--space-5);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  flex: 1;
}

.project-body h3 {
  font-size: 17px;
}

.project-body p {
  color: var(--color-muted-foreground);
  font-size: 14px;
  margin: 0;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.tech-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: auto;
}

.tech-tag {
  font-family: var(--font-heading);
  font-size: 11px;
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  background: var(--color-muted);
  color: var(--color-secondary);
}

.project-links {
  display: flex;
  gap: var(--space-3);
  margin-top: var(--space-2);
}

.project-links a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-accent);
}

.project-links a:hover {
  color: var(--color-accent-hover);
}

.empty-state {
  text-align: center;
  padding: var(--space-8) var(--space-5);
  color: var(--color-muted-foreground);
  border: 1px dashed var(--color-border);
  border-radius: var(--radius-lg);
}

/* ---------------- About ---------------- */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-7);
  align-items: start;
}

.skill-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-3);
  margin-top: var(--space-5);
}

.skill-chip {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-4);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: 14px;
  font-weight: 500;
}

.skill-chip .icon {
  color: var(--color-accent);
}

@media (max-width: 860px) {
  .about-grid {
    grid-template-columns: 1fr;
    gap: var(--space-6);
  }
  .skill-list {
    grid-template-columns: 1fr 1fr;
  }
}

/* ---------------- Booking form ---------------- */
.booking-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  box-shadow: var(--shadow-md);
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
}

.form-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-field.full {
  grid-column: 1 / -1;
}

.form-field label {
  font-size: 13px;
  font-weight: 600;
  color: var(--color-secondary);
}

.form-field .req {
  color: var(--color-destructive);
}

input, select, textarea {
  font-family: var(--font-body);
  font-size: 14px;
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  background: var(--color-background);
  color: var(--color-foreground);
  transition: border-color var(--dur-fast) var(--ease-standard), box-shadow var(--dur-fast) var(--ease-standard);
  width: 100%;
}

input:focus, select:focus, textarea:focus {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-glow);
  outline: none;
}

textarea {
  resize: vertical;
  min-height: 110px;
}

.field-error {
  font-size: 12px;
  color: var(--color-destructive);
  min-height: 16px;
}

.form-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: var(--space-5);
  gap: var(--space-4);
  flex-wrap: wrap;
}

.form-status {
  font-size: 14px;
  font-weight: 500;
}

.form-status.success { color: var(--color-success); }
.form-status.error { color: var(--color-destructive); }

@media (max-width: 640px) {
  .form-grid {
    grid-template-columns: 1fr;
  }
  .booking-card {
    padding: var(--space-5);
  }
}

/* ---------------- Footer ---------------- */
.site-footer {
  background: var(--color-primary);
  color: var(--color-on-primary);
  padding: var(--space-8) 0 var(--space-5);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: var(--space-7);
}

.footer-brand p {
  color: rgba(255, 255, 255, 0.65);
  font-size: 14px;
  max-width: 320px;
  margin-top: var(--space-3);
}

.footer-col h4 {
  color: #fff;
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: var(--space-4);
}

.footer-col a, .footer-col li {
  display: block;
  color: rgba(255, 255, 255, 0.7);
  font-size: 14px;
  margin-bottom: var(--space-3);
  transition: color var(--dur-fast) var(--ease-standard);
  list-style: none;
}

.footer-col a:hover {
  color: #fff;
}

.footer-contact-item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.footer-bottom {
  margin-top: var(--space-7);
  padding-top: var(--space-5);
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-3);
  font-size: 13px;
  color: rgba(255, 255, 255, 0.5);
}

.social-links {
  display: flex;
  gap: var(--space-3);
}

.social-links a {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--dur-fast) var(--ease-standard), transform var(--dur-fast) var(--ease-spring);
}

.social-links a:hover {
  background: var(--color-accent);
  transform: translateY(-2px);
}

@media (max-width: 860px) {
  .footer-grid {
    grid-template-columns: 1fr;
    gap: var(--space-6);
  }
}

/* ---------------- Toast ---------------- */
.toast {
  position: fixed;
  bottom: var(--space-5);
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: var(--color-primary);
  color: #fff;
  padding: var(--space-4) var(--space-5);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  font-size: 14px;
  font-weight: 500;
  z-index: 200;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--dur-base) var(--ease-standard), transform var(--dur-base) var(--ease-spring);
  display: flex;
  align-items: center;
  gap: var(--space-3);
  max-width: 90vw;
}

.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
  pointer-events: auto;
}

.toast.error {
  background: var(--color-destructive);
}

/* ---------------- Utility ---------------- */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
}

.spin {
  animation: spin 0.7s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}