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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 5rem;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-weight: 400;
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

ul {
  list-style: none;
}

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

input, select, textarea {
  font: inherit;
  color: inherit;
}

/* ========== Custom Properties ========== */
:root {
  --color-bg: #0a0a0f;
  --color-surface: #12121a;
  --color-surface-alt: #0e0e16;
  --color-border: #1e1e2e;
  --color-text: #e4e4ed;
  --color-text-muted: #8888a0;
  --color-accent: #6366f1;
  --color-accent-hover: #818cf8;
  --color-accent-glow: rgba(99, 102, 241, 0.15);
  --color-success: #22c55e;
  --radius: 8px;
  --container: 1140px;
  --header-h: 4rem;
}

/* ========== Layout ========== */
.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.section {
  padding: 5rem 0;
}

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

.section__title {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 700;
  text-align: center;
  margin-bottom: 0.75rem;
}

.section__sub {
  text-align: center;
  color: var(--color-text-muted);
  max-width: 560px;
  margin: 0 auto 3rem;
  font-size: 1.05rem;
}

/* ========== Buttons ========== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-weight: 600;
  font-size: 0.95rem;
  padding: 0.7rem 1.5rem;
  border-radius: var(--radius);
  transition: all 0.2s ease;
  white-space: nowrap;
}

.btn:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

.btn--primary {
  background: var(--color-accent);
  color: #fff;
}

.btn--primary:hover {
  background: var(--color-accent-hover);
  box-shadow: 0 0 20px var(--color-accent-glow);
}

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

.btn--ghost:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.btn--lg {
  padding: 0.85rem 2rem;
  font-size: 1rem;
}

.btn--sm {
  padding: 0.5rem 1rem;
  font-size: 0.85rem;
}

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

/* ========== Header / Nav ========== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--header-h);
  transition: background 0.3s ease, box-shadow 0.3s ease;
}

.header--scrolled {
  background: rgba(10, 10, 15, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 var(--color-border);
}

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

.header__logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-weight: 700;
  font-size: 1.15rem;
  z-index: 1001;
}

.header__logo svg {
  flex-shrink: 0;
}

.header__nav {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.header__links {
  display: flex;
  gap: 1.75rem;
}

.header__links a {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  transition: color 0.2s ease;
  position: relative;
}

.header__links a:hover {
  color: var(--color-text);
}

.header__links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-accent);
  transition: width 0.2s ease;
}

.header__links a:hover::after {
  width: 100%;
}

.header__cta {
  padding: 0.55rem 1.25rem;
  font-size: 0.875rem;
}

/* Hamburger */
.header__menu-btn {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 28px;
  height: 28px;
  z-index: 1001;
}

.header__menu-btn span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: all 0.3s ease;
}

/* Mobile nav */
@media (max-width: 768px) {
  .header__menu-btn {
    display: flex;
  }

  .header__nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--color-bg);
    flex-direction: column;
    justify-content: center;
    gap: 2.5rem;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
  }

  .header__nav.is-open {
    opacity: 1;
    visibility: visible;
  }

  .header__links {
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
  }

  .header__links a {
    font-size: 1.25rem;
  }

  .header__cta {
    font-size: 1rem;
    padding: 0.75rem 2rem;
  }

  /* Hamburger animation */
  .menu-open .header__menu-btn span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }
  .menu-open .header__menu-btn span:nth-child(2) {
    opacity: 0;
  }
  .menu-open .header__menu-btn span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }
}

/* ========== Hero ========== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding-top: var(--header-h);
}

.hero__bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 600px 500px at 70% 30%, rgba(99, 102, 241, 0.12) 0%, transparent 70%),
    radial-gradient(ellipse 400px 400px at 20% 80%, rgba(99, 102, 241, 0.06) 0%, transparent 70%);
  pointer-events: none;
}

.hero__inner {
  max-width: 720px;
  padding: 4rem 0;
}

.hero__title {
  font-size: clamp(2.25rem, 6vw, 3.75rem);
  font-weight: 700;
  line-height: 1.15;
  margin-bottom: 1.25rem;
  letter-spacing: -0.02em;
}

.hero__sub {
  font-size: clamp(1rem, 2vw, 1.2rem);
  color: var(--color-text-muted);
  max-width: 540px;
  margin-bottom: 2.25rem;
  line-height: 1.7;
}

.hero__actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

/* ========== Services ========== */
.services__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}

.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 2rem;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.3);
}

.card__icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-accent-glow);
  border-radius: var(--radius);
  margin-bottom: 1.25rem;
}

.card__title {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 0.6rem;
}

.card__text {
  color: var(--color-text-muted);
  font-size: 0.95rem;
  line-height: 1.65;
}

/* ========== Process ========== */
.process__timeline {
  max-width: 640px;
  margin: 0 auto;
  position: relative;
}

.process__timeline::before {
  content: '';
  position: absolute;
  left: 23px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--color-border);
}

.process__step {
  display: flex;
  gap: 1.5rem;
  padding-bottom: 2.5rem;
  position: relative;
}

.process__step:last-child {
  padding-bottom: 0;
}

.process__number {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--color-surface);
  border: 2px solid var(--color-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.85rem;
  color: var(--color-accent);
  position: relative;
  z-index: 1;
}

.process__content h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 0.35rem;
  padding-top: 0.15rem;
}

.process__content p {
  color: var(--color-text-muted);
  font-size: 0.95rem;
  line-height: 1.65;
}

/* ========== Work / Portfolio ========== */
.work__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}

.work__preview {
  aspect-ratio: 16 / 10;
  border-radius: var(--radius);
  position: relative;
  overflow: hidden;
  margin-bottom: 1rem;
}

/* CSS gradient placeholders — replace with real screenshots */
.work__preview--1 { background: linear-gradient(135deg, #1a1a3e 0%, #2d1b4e 50%, #1a2a3e 100%); }
.work__preview--2 { background: linear-gradient(135deg, #1a2e1a 0%, #1b3e2d 50%, #1a3e3e 100%); }
.work__preview--3 { background: linear-gradient(135deg, #3e1a1a 0%, #4e2d1b 50%, #3e2a1a 100%); }
.work__preview--4 { background: linear-gradient(135deg, #1a2a3e 0%, #1b2d4e 50%, #2a1a3e 100%); }

.work__overlay {
  position: absolute;
  inset: 0;
  background: rgba(10, 10, 15, 0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.work__preview:hover .work__overlay {
  opacity: 1;
}

.work__name {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 0.3rem;
}

.work__desc {
  color: var(--color-text-muted);
  font-size: 0.9rem;
  margin-bottom: 0.75rem;
}

.work__tags {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.work__tags span {
  font-size: 0.75rem;
  padding: 0.2rem 0.6rem;
  border-radius: 50px;
  border: 1px solid var(--color-border);
  color: var(--color-text-muted);
}

/* ========== Pricing ========== */
.pricing__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
  align-items: start;
}

.pricing__card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 2rem;
  position: relative;
}

.pricing__card--featured {
  border-color: var(--color-accent);
  box-shadow: 0 0 30px var(--color-accent-glow);
}

.pricing__badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-accent);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.25rem 1rem;
  border-radius: 50px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.pricing__header {
  text-align: center;
  padding-bottom: 1.5rem;
  margin-bottom: 1.5rem;
  border-bottom: 1px solid var(--color-border);
}

.pricing__header h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.pricing__price {
  font-size: 2.25rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.pricing__desc {
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

.pricing__features {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-bottom: 2rem;
}

.pricing__features li {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.95rem;
  color: var(--color-text-muted);
}

.pricing__features li svg {
  flex-shrink: 0;
}

.pricing__note {
  text-align: center;
  color: var(--color-text-muted);
  font-size: 0.9rem;
  margin-top: 2rem;
}

/* ========== Testimonials ========== */
.testimonials__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
}

.testimonial {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 2rem;
}

.testimonial__quote {
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--color-text-muted);
  margin-bottom: 1.5rem;
  font-style: italic;
}

.testimonial__author {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.testimonial__avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--color-accent-glow);
  color: var(--color-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.8rem;
  flex-shrink: 0;
}

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

.testimonial__role {
  color: var(--color-text-muted);
  font-size: 0.8rem;
}

/* ========== Contact ========== */
.contact__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: start;
}

.contact__title {
  font-size: clamp(1.75rem, 4vw, 2.25rem);
  font-weight: 700;
  margin-bottom: 1rem;
}

.contact__text {
  color: var(--color-text-muted);
  font-size: 1rem;
  line-height: 1.7;
  margin-bottom: 2rem;
}

.contact__book-btn {
  margin-bottom: 2rem;
}

.contact__alt {
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

.contact__alt p {
  margin-bottom: 0.25rem;
}

.contact__alt a {
  color: var(--color-accent);
  transition: color 0.2s ease;
}

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

/* Form */
.contact__form {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.form__group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.form__group label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text-muted);
}

.form__group input,
.form__group select,
.form__group textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  color: var(--color-text);
  transition: border-color 0.2s ease;
  appearance: none;
}

.form__group select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 16 16'%3E%3Cpath d='M4 6l4 4 4-4' fill='none' stroke='%238888a0' stroke-width='1.5' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  padding-right: 2.5rem;
}

.form__group input:focus,
.form__group select:focus,
.form__group textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px var(--color-accent-glow);
}

.form__group input::placeholder,
.form__group textarea::placeholder {
  color: var(--color-text-muted);
  opacity: 0.5;
}

.form__group textarea {
  resize: vertical;
  min-height: 100px;
}

.form__status {
  font-size: 0.9rem;
  min-height: 1.4rem;
}

.form__status--success {
  color: var(--color-success);
}

.form__status--error {
  color: #ef4444;
}

@media (max-width: 768px) {
  .contact__grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
}

/* ========== Footer ========== */
.footer {
  border-top: 1px solid var(--color-border);
  padding: 3rem 0;
}

.footer__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
  text-align: center;
}

.footer__tagline {
  color: var(--color-text-muted);
  font-size: 0.85rem;
  margin-top: 0.5rem;
}

.footer__nav ul {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
  justify-content: center;
}

.footer__nav a {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  transition: color 0.2s ease;
}

.footer__nav a:hover {
  color: var(--color-text);
}

.footer__copy {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  opacity: 0.6;
}

/* ========== Animations ========== */
@media (prefers-reduced-motion: no-preference) {
  [data-animate] {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.5s ease, transform 0.5s ease;
  }

  [data-animate].visible {
    opacity: 1;
    transform: translateY(0);
  }

  /* Stagger children in grids */
  [data-animate]:nth-child(2) { transition-delay: 0.1s; }
  [data-animate]:nth-child(3) { transition-delay: 0.2s; }
  [data-animate]:nth-child(4) { transition-delay: 0.3s; }
}

/* Users who prefer reduced motion see everything immediately */
@media (prefers-reduced-motion: reduce) {
  [data-animate] {
    opacity: 1;
    transform: none;
  }
}

/* ========== Responsive ========== */
@media (min-width: 1024px) {
  .section {
    padding: 7rem 0;
  }

  .hero__inner {
    padding: 6rem 0;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 1rem;
  }

  .section {
    padding: 3.5rem 0;
  }

  .hero__actions {
    flex-direction: column;
  }

  .hero__actions .btn {
    width: 100%;
  }

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

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