/**
 * Plasma Works (Pty) Ltd — Main Stylesheet
 * Glassmorphism theme with dark tech-forward palette
 */

/* ============================================
   CSS Custom Properties
   ============================================ */
:root {
  /* Colors */
  --color-bg: #0B1220;
  --color-bg-alt: #0F1729;
  --color-surface: rgba(255, 255, 255, 0.04);
  --color-surface-hover: rgba(255, 255, 255, 0.08);
  --color-border: rgba(255, 255, 255, 0.1);
  --color-border-hover: rgba(255, 255, 255, 0.2);
  --color-text: #F1F5F9;
  --color-text-muted: #94A3B8;
  --color-text-dim: #64748B;
  --color-accent: #00D4FF;
  --color-accent-secondary: #7B61FF;
  --color-accent-glow: rgba(0, 212, 255, 0.25);
  --color-error: #F87171;

  /* Glass */
  --glass-bg: rgba(15, 23, 42, 0.6);
  --glass-border: rgba(255, 255, 255, 0.08);
  --glass-blur: 16px;

  /* Typography */
  --font-heading: 'Space Grotesk', system-ui, sans-serif;
  --font-body: 'Inter', system-ui, sans-serif;

  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 5rem;

  /* Layout */
  --container-max: 1200px;
  --header-height: 72px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-full: 9999px;

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 400ms ease;
}

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

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

body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-bg);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

a:hover {
  color: #33DDFF;
}

ul, ol {
  list-style: none;
}

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

/* ============================================
   Utilities
   ============================================ */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--space-lg);
}

.text-gradient {
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.glass {
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
}

.skip-link {
  position: absolute;
  top: -100%;
  left: var(--space-md);
  z-index: 10000;
  padding: var(--space-sm) var(--space-md);
  background: var(--color-accent);
  color: var(--color-bg);
  border-radius: var(--radius-sm);
  font-weight: 600;
}

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

.badge {
  display: inline-block;
  font-size: 0.65rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.15em 0.5em;
  background: rgba(0, 212, 255, 0.15);
  color: var(--color-accent);
  border-radius: var(--radius-full);
  vertical-align: middle;
  margin-left: var(--space-xs);
}

/* ============================================
   Background Blobs
   ============================================ */
.bg-blobs {
  position: fixed;
  inset: 0;
  z-index: -1;
  overflow: hidden;
  pointer-events: none;
}

.blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.4;
  animation: blobFloat 20s ease-in-out infinite;
}

.blob-1 {
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, var(--color-accent) 0%, transparent 70%);
  top: -10%;
  right: -10%;
  animation-delay: 0s;
}

.blob-2 {
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, var(--color-accent-secondary) 0%, transparent 70%);
  bottom: 20%;
  left: -15%;
  animation-delay: -7s;
}

.blob-3 {
  width: 350px;
  height: 350px;
  background: radial-gradient(circle, #0EA5E9 0%, transparent 70%);
  top: 50%;
  right: 20%;
  animation-delay: -14s;
}

@keyframes blobFloat {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(30px, -30px) scale(1.05); }
  66% { transform: translate(-20px, 20px) scale(0.95); }
}

/* ============================================
   Buttons
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: 0.75rem 1.75rem;
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  transition: all var(--transition-base);
  white-space: nowrap;
}

.btn--primary {
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent-secondary));
  color: var(--color-bg);
  box-shadow: 0 4px 20px var(--color-accent-glow);
}

.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px var(--color-accent-glow);
  color: var(--color-bg);
}

.btn--ghost {
  background: transparent;
  color: var(--color-text);
  border: 1px solid var(--color-border);
}

.btn--ghost:hover {
  background: var(--color-surface-hover);
  border-color: var(--color-border-hover);
  color: var(--color-text);
}

.btn--full {
  width: 100%;
}

/* ============================================
   Navigation
   ============================================ */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: var(--space-md) var(--space-lg);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--container-max);
  margin-inline: auto;
  padding: var(--space-sm) var(--space-lg);
  border-radius: var(--radius-full);
}

.nav__logo img {
  height: 32px;
  width: auto;
}

.nav__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: var(--space-sm);
  z-index: 1001;
}

.nav__toggle-bar {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: all var(--transition-base);
}

.nav__toggle[aria-expanded="true"] .nav__toggle-bar:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.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: rotate(-45deg) translate(5px, -5px);
}

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

.nav__link {
  font-family: var(--font-heading);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text-muted);
  transition: color var(--transition-fast);
  position: relative;
}

.nav__link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-accent);
  transition: width var(--transition-base);
}

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

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

.nav__link--cta {
  padding: 0.5rem 1.25rem;
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent-secondary));
  color: var(--color-bg) !important;
  border-radius: var(--radius-full);
  font-weight: 600;
}

.nav__link--cta::after {
  display: none;
}

.nav__link--cta:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 15px var(--color-accent-glow);
}

/* ============================================
   Hero
   ============================================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.hero__bg {
  position: absolute;
  inset: 0;
  background-image: url('https://images.unsplash.com/photo-1517694712202-14dd9538aa97?w=1920&h=1080&fit=crop&q=80');
  background-size: cover;
  background-position: center;
  z-index: -2;
}

.hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    rgba(11, 18, 32, 0.92) 0%,
    rgba(11, 18, 32, 0.75) 50%,
    rgba(11, 18, 32, 0.85) 100%
  );
  z-index: -1;
}

.hero__content {
  padding-top: calc(var(--header-height) + var(--space-3xl));
  padding-bottom: var(--space-3xl);
}

.hero__card {
  max-width: 720px;
  padding: var(--space-2xl);
}

.hero__eyebrow {
  font-family: var(--font-heading);
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-accent);
  margin-bottom: var(--space-md);
}

.hero__title {
  font-family: var(--font-heading);
  font-size: clamp(2.25rem, 5vw, 3.5rem);
  font-weight: 700;
  line-height: 1.15;
  margin-bottom: var(--space-lg);
}

.hero__subtitle {
  font-size: 1.125rem;
  color: var(--color-text-muted);
  line-height: 1.7;
  margin-bottom: var(--space-xl);
  max-width: 580px;
}

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

.hero__scroll {
  position: absolute;
  bottom: var(--space-xl);
  left: 50%;
  transform: translateX(-50%);
  color: var(--color-text-muted);
  animation: bounce 2s ease-in-out infinite;
  transition: color var(--transition-fast);
}

.hero__scroll:hover {
  color: var(--color-accent);
}

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

/* ============================================
   Sections
   ============================================ */
.section {
  padding-block: var(--space-3xl);
}

.section--alt {
  background: var(--color-bg-alt);
}

.section__header {
  text-align: center;
  max-width: 700px;
  margin-inline: auto;
  margin-bottom: var(--space-3xl);
}

.section__eyebrow {
  font-family: var(--font-heading);
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-accent);
  margin-bottom: var(--space-sm);
}

.section__title {
  font-family: var(--font-heading);
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 700;
  margin-bottom: var(--space-md);
}

.section__lead {
  font-size: 1.1rem;
  color: var(--color-text-muted);
  line-height: 1.7;
}

/* ============================================
   About
   ============================================ */
.about__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2xl);
  align-items: center;
  margin-bottom: var(--space-3xl);
}

.about__image {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--glass-border);
}

.about__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  aspect-ratio: 4 / 3;
}

.about__subtitle {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: var(--space-md);
}

.about__text p {
  color: var(--color-text-muted);
  margin-bottom: var(--space-md);
}

.about__highlights {
  margin-top: var(--space-lg);
}

.about__highlights li {
  position: relative;
  padding-left: var(--space-lg);
  margin-bottom: var(--space-sm);
  color: var(--color-text-muted);
}

.about__highlights li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 8px;
  height: 8px;
  background: var(--color-accent);
  border-radius: 50%;
}

/* Stats */
.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-lg);
}

.stat {
  text-align: center;
  padding: var(--space-xl) var(--space-md);
}

.stat__number {
  font-family: var(--font-heading);
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--color-accent);
}

.stat__suffix {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-accent);
}

.stat__label {
  display: block;
  font-size: 0.9rem;
  color: var(--color-text-muted);
  margin-top: var(--space-xs);
}

/* ============================================
   Services
   ============================================ */
.services__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-xl);
}

.service-card {
  overflow: hidden;
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.service-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3);
}

.service-card__image {
  height: 200px;
  overflow: hidden;
}

.service-card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.service-card:hover .service-card__image img {
  transform: scale(1.05);
}

.service-card__body {
  padding: var(--space-xl);
}

.service-card__icon {
  color: var(--color-accent);
  margin-bottom: var(--space-md);
}

.service-card__title {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: var(--space-sm);
}

.service-card__desc {
  font-size: 0.95rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* ============================================
   Features (Why Us)
   ============================================ */
.features__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-xl);
}

.feature {
  padding: var(--space-xl);
  transition: transform var(--transition-base), border-color var(--transition-base);
}

.feature:hover {
  transform: translateY(-2px);
  border-color: var(--color-border-hover);
}

.feature__icon {
  color: var(--color-accent);
  margin-bottom: var(--space-md);
}

.feature__title {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: var(--space-sm);
}

.feature__desc {
  font-size: 0.95rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* ============================================
   Process
   ============================================ */
.process__timeline {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-lg);
  counter-reset: process;
}

.process__step {
  padding: var(--space-xl);
  position: relative;
  transition: transform var(--transition-base);
}

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

.process__number {
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  display: block;
  margin-bottom: var(--space-md);
}

.process__title {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: var(--space-sm);
}

.process__desc {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* ============================================
   Contact
   ============================================ */
.contact__grid {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: var(--space-2xl);
  align-items: start;
}

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

.contact__item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
  padding: var(--space-lg);
}

.contact__item-icon {
  color: var(--color-accent);
  flex-shrink: 0;
  margin-top: 2px;
}

.contact__item-title {
  font-family: var(--font-heading);
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-dim);
  margin-bottom: var(--space-xs);
}

.contact__item-link {
  font-size: 1rem;
  font-weight: 500;
}

.contact__item-text {
  color: var(--color-text-muted);
}

/* Form */
.contact__form {
  padding: var(--space-2xl);
}

.form__group {
  margin-bottom: var(--space-lg);
}

.form__label {
  display: block;
  font-size: 0.9rem;
  font-weight: 500;
  margin-bottom: var(--space-sm);
  color: var(--color-text-muted);
}

.form__required {
  color: var(--color-accent);
}

.form__input {
  width: 100%;
  padding: 0.75rem 1rem;
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--color-text);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form__input::placeholder {
  color: var(--color-text-dim);
}

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

.form__input.error {
  border-color: var(--color-error);
}

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

.form__error {
  display: block;
  font-size: 0.8rem;
  color: var(--color-error);
  margin-top: var(--space-xs);
  min-height: 1.2em;
}

.form__note {
  font-size: 0.8rem;
  color: var(--color-text-dim);
  text-align: center;
  margin-top: var(--space-md);
}

/* ============================================
   Footer
   ============================================ */
.footer {
  padding-block: var(--space-3xl) var(--space-xl);
  border-top: 1px solid var(--color-border);
  background: var(--color-bg-alt);
}

.footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: var(--space-2xl);
  margin-bottom: var(--space-2xl);
}

.footer__logo {
  margin-bottom: var(--space-md);
}

.footer__tagline {
  color: var(--color-text-muted);
  font-size: 0.95rem;
  max-width: 300px;
}

.footer__heading {
  font-family: var(--font-heading);
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-dim);
  margin-bottom: var(--space-md);
}

.footer__links li {
  margin-bottom: var(--space-sm);
}

.footer__links a {
  color: var(--color-text-muted);
  font-size: 0.95rem;
  transition: color var(--transition-fast);
}

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

.footer__links li:not(:has(a)) {
  color: var(--color-text-muted);
  font-size: 0.95rem;
}

.footer__bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-md);
  padding-top: var(--space-xl);
  border-top: 1px solid var(--color-border);
  font-size: 0.85rem;
  color: var(--color-text-dim);
}

.footer__credit a {
  color: var(--color-text-dim);
}

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

/* ============================================
   Scroll Reveal Animation
   ============================================ */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* ============================================
   Responsive
   ============================================ */
@media (max-width: 1024px) {
  .stats {
    grid-template-columns: repeat(2, 1fr);
  }

  .process__timeline {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .nav__toggle {
    display: flex;
  }

  .nav__menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: min(300px, 80vw);
    height: 100vh;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: var(--space-xl);
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-left: 1px solid var(--glass-border);
    transition: right var(--transition-base);
    z-index: 1000;
  }

  .nav__menu.open {
    right: 0;
  }

  .nav__link--cta {
    margin-top: var(--space-md);
  }

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

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

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

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

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

  .footer__grid {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .footer__tagline {
    margin-inline: auto;
  }

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

  .hero__card {
    padding: var(--space-xl);
  }

  .hero__actions {
    flex-direction: column;
  }

  .hero__actions .btn {
    width: 100%;
  }
}

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

  .stat__number {
    font-size: 2rem;
  }
}

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

  html {
    scroll-behavior: auto;
  }

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