/* ============================================================
   Avolo — Coming Soon Landing Page
   Design System & Styles
   ============================================================ */

/* --- Design Tokens --- */
:root {
  /* Colors */
  --clr-bg:         #0a0a0a;
  --clr-surface:    #111113;
  --clr-border:     rgba(255, 255, 255, 0.06);
  --clr-border-hover: rgba(255, 255, 255, 0.12);
  --clr-text:       #f0f0f0;
  --clr-text-muted: #8a8a9a;
  --clr-text-dim:   #555566;

  /* Accent – Purple/Violet */
  --clr-accent:     #a855f7;
  --clr-accent-light: #c084fc;
  --clr-accent-glow: rgba(168, 85, 247, 0.25);
  --clr-accent-bg:  rgba(168, 85, 247, 0.08);

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

  /* Spacing */
  --space-xs:  0.5rem;
  --space-sm:  1rem;
  --space-md:  1.5rem;
  --space-lg:  3rem;
  --space-xl:  5rem;
  --space-2xl: 8rem;

  /* Radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-full: 9999px;

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

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--ff-body);
  background-color: var(--clr-bg);
  color: var(--clr-text);
  line-height: 1.6;
  overflow-x: hidden;
  min-height: 100vh;
}

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

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

strong {
  color: var(--clr-text);
  font-weight: 600;
}

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

/* --- Background Effects --- */
.bg-grid {
  position: fixed;
  inset: 0;
  z-index: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.025) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 30%, black 30%, transparent 100%);
  -webkit-mask-image: radial-gradient(ellipse 80% 60% at 50% 30%, black 30%, transparent 100%);
  pointer-events: none;
}

.bg-glow {
  position: fixed;
  border-radius: 50%;
  filter: blur(120px);
  opacity: 0.4;
  pointer-events: none;
  z-index: 0;
}

.bg-glow--1 {
  width: 600px;
  height: 600px;
  top: -200px;
  left: 50%;
  transform: translateX(-50%);
  background: radial-gradient(circle, var(--clr-accent-glow) 0%, transparent 70%);
}

.bg-glow--2 {
  width: 400px;
  height: 400px;
  bottom: -100px;
  right: -100px;
  background: radial-gradient(circle, rgba(99, 102, 241, 0.15) 0%, transparent 70%);
}

/* --- Layout Container --- */
.header,
.hero,
.about,
.services,
.footer {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 1100px;
  margin: 0 auto;
  padding-left: var(--space-md);
  padding-right: var(--space-md);
}

/* --- Header / Nav --- */
.header {
  padding-top: var(--space-md);
  padding-bottom: var(--space-md);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
  color: var(--clr-text);
}

.logo__icon {
  font-size: 1.6rem;
  color: var(--clr-accent);
  line-height: 1;
}

.logo__text {
  font-family: var(--ff-heading);
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.nav__badge {
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--clr-accent-light);
  background: var(--clr-accent-bg);
  border: 1px solid rgba(168, 85, 247, 0.2);
  padding: 0.35em 0.9em;
  border-radius: var(--radius-full);
}

/* --- Hero Section --- */
.hero {
  text-align: center;
  padding-top: var(--space-2xl);
  padding-bottom: var(--space-xl);
}

.hero__eyebrow {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--clr-accent-light);
  margin-bottom: var(--space-md);
  position: relative;
}

.hero__eyebrow::before,
.hero__eyebrow::after {
  content: '';
  display: inline-block;
  width: 28px;
  height: 1px;
  background: var(--clr-accent);
  vertical-align: middle;
  opacity: 0.4;
}

.hero__eyebrow::before { margin-right: 1rem; }
.hero__eyebrow::after  { margin-left: 1rem; }

.hero__headline {
  font-family: var(--ff-heading);
  font-size: clamp(2.8rem, 8vw, 5.5rem);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin-bottom: var(--space-md);
  background: linear-gradient(135deg, #ffffff 0%, #d4d4d8 40%, var(--clr-accent-light) 100%);
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero__subtext {
  font-size: clamp(1rem, 2.2vw, 1.25rem);
  color: var(--clr-text-muted);
  max-width: 480px;
  margin: 0 auto var(--space-sm);
  line-height: 1.7;
}

.hero__founder {
  font-size: 0.85rem;
  color: var(--clr-text-dim);
  margin-bottom: var(--space-lg);
}

.hero__founder strong {
  color: var(--clr-text-muted);
}

/* --- Signup Form --- */
.signup {
  max-width: 460px;
  margin: 0 auto;
}

.signup__wrapper {
  display: flex;
  gap: 0;
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  padding: 5px;
  transition: border-color var(--transition-base), box-shadow var(--transition-base);
}

.signup__wrapper:focus-within {
  border-color: rgba(168, 85, 247, 0.4);
  box-shadow: 0 0 0 3px var(--clr-accent-glow), 0 8px 32px rgba(0,0,0,0.3);
}

.signup__input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  color: var(--clr-text);
  font-family: var(--ff-body);
  font-size: 0.95rem;
  padding: 0.85rem 1rem;
  min-width: 0;
}

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

.signup__btn {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: linear-gradient(135deg, var(--clr-accent) 0%, #7c3aed 100%);
  color: #fff;
  border: none;
  border-radius: var(--radius-md);
  padding: 0.85rem 1.5rem;
  font-family: var(--ff-body);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
  transition: transform var(--transition-base), box-shadow var(--transition-base), opacity var(--transition-base);
}

.signup__btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 20px var(--clr-accent-glow);
}

.signup__btn:active {
  transform: translateY(0);
}

.signup__btn-icon {
  transition: transform var(--transition-base);
}

.signup__btn:hover .signup__btn-icon {
  transform: translateX(3px);
}

.signup__confirmation {
  margin-top: var(--space-sm);
  font-size: 0.85rem;
  color: #34d399;
  opacity: 0;
  transform: translateY(6px);
  transition: opacity 0.5s var(--ease-out), transform 0.5s var(--ease-out);
  pointer-events: none;
}

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

/* --- Section Label --- */
.section-label {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--clr-accent-light);
  background: var(--clr-accent-bg);
  border: 1px solid rgba(168, 85, 247, 0.15);
  padding: 0.3em 0.85em;
  border-radius: var(--radius-full);
  margin-bottom: var(--space-md);
}

/* --- About Section --- */
.about {
  text-align: center;
  padding-top: var(--space-lg);
  padding-bottom: var(--space-xl);
}

.about__container {
  max-width: 680px;
  margin: 0 auto;
  padding: var(--space-lg);
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  position: relative;
  overflow: hidden;
}

.about__container::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--clr-accent), transparent);
  opacity: 0.4;
}

.about__text {
  font-size: clamp(0.95rem, 2vw, 1.1rem);
  color: var(--clr-text-muted);
  line-height: 1.8;
}

/* --- Services Section --- */
.services {
  text-align: center;
  padding-top: var(--space-lg);
  padding-bottom: var(--space-2xl);
}

.services__heading {
  font-family: var(--ff-heading);
  font-size: clamp(1.6rem, 4vw, 2.2rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-lg);
  color: var(--clr-text);
}

.services__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-md);
  text-align: left;
}

/* --- Service Card --- */
.card {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  padding: var(--space-md) var(--space-md) var(--space-lg);
  transition: border-color var(--transition-base), transform var(--transition-base), box-shadow var(--transition-base);
  position: relative;
  overflow: hidden;
}

.card::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(600px circle at var(--mouse-x, 50%) var(--mouse-y, 50%), var(--clr-accent-bg), transparent 60%);
  opacity: 0;
  transition: opacity var(--transition-base);
  pointer-events: none;
}

.card:hover {
  border-color: var(--clr-border-hover);
  transform: translateY(-3px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3);
}

.card:hover::after {
  opacity: 1;
}

.card__icon-wrapper {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--clr-accent-bg);
  border: 1px solid rgba(168, 85, 247, 0.15);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-sm);
  color: var(--clr-accent-light);
  transition: background var(--transition-base), box-shadow var(--transition-base);
}

.card:hover .card__icon-wrapper {
  background: rgba(168, 85, 247, 0.15);
  box-shadow: 0 0 20px var(--clr-accent-glow);
}

.card__icon {
  width: 22px;
  height: 22px;
}

.card__title {
  font-family: var(--ff-heading);
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 0.4rem;
  color: var(--clr-text);
}

.card__desc {
  font-size: 0.88rem;
  color: var(--clr-text-muted);
  line-height: 1.6;
}

/* --- Footer --- */
.footer {
  border-top: 1px solid var(--clr-border);
  padding-top: var(--space-lg);
  padding-bottom: var(--space-lg);
  text-align: center;
}

.footer__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.4rem;
}

.footer__copy {
  font-size: 0.8rem;
  color: var(--clr-text-dim);
}

.footer__founder {
  font-size: 0.75rem;
  color: var(--clr-text-dim);
}

.footer__contact {
  font-size: 0.85rem;
}

.footer__phone {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  color: var(--clr-text-muted);
  transition: color var(--transition-base);
}

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

.footer__phone-icon {
  font-size: 1rem;
  color: var(--clr-accent);
}

/* --- Fade-in Animation --- */
.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.8s var(--ease-out), transform 0.8s var(--ease-out);
}

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

/* Staggered delays */
.fade-in:nth-child(1) { transition-delay: 0.05s; }
.fade-in:nth-child(2) { transition-delay: 0.15s; }
.fade-in:nth-child(3) { transition-delay: 0.25s; }
.fade-in:nth-child(4) { transition-delay: 0.35s; }

/* --- Responsive --- */

/* Tablet */
@media (max-width: 768px) {
  .services__grid {
    grid-template-columns: 1fr;
    gap: var(--space-sm);
  }

  .hero {
    padding-top: var(--space-xl);
    padding-bottom: var(--space-lg);
  }
}

/* Mobile */
@media (max-width: 480px) {
  .hero__headline {
    font-size: 2.4rem;
  }

  .signup__wrapper {
    flex-direction: column;
    gap: 0;
  }

  .signup__btn {
    justify-content: center;
    border-radius: var(--radius-md);
  }

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

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

  .nav__badge {
    font-size: 0.6rem;
    padding: 0.25em 0.7em;
  }
}