/* ============================================================
   DAYLIGHT SOLUTIONS — styles.css
   ============================================================ */

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

:root {
  --clr-bg:          #05080f;
  --clr-bg-2:        #0b1020;
  --clr-surface:     #111827;
  --clr-surface-2:   #1a2235;
  --clr-border:      rgba(255,255,255,0.08);
  --clr-primary:     #3b82f6;
  --clr-primary-h:   #2563eb;
  --clr-accent:      #06b6d4;
  --clr-grad-start:  #3b82f6;
  --clr-grad-end:    #06b6d4;
  --clr-text:        #f1f5f9;
  --clr-text-muted:  #94a3b8;
  --clr-text-faint:  #475569;

  --font:            'Inter', system-ui, sans-serif;
  --radius-sm:       8px;
  --radius:          14px;
  --radius-lg:       22px;
  --shadow:          0 4px 24px rgba(0,0,0,0.45);
  --shadow-card:     0 2px 32px rgba(0,0,0,0.5);
  --transition:      0.25s ease;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font);
  background: var(--clr-bg);
  color: var(--clr-text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

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

ul { list-style: none; }
img { display: block; max-width: 100%; }

/* ---------- Utilities ---------- */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.gradient-text {
  background: linear-gradient(135deg, var(--clr-grad-start), var(--clr-grad-end));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section {
  padding: 100px 0;
}

.section__header {
  text-align: center;
  margin-bottom: 64px;
}

.section__tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--clr-primary);
  border: 1px solid rgba(59,130,246,0.35);
  background: rgba(59,130,246,0.08);
  padding: 5px 16px;
  border-radius: 999px;
  margin-bottom: 16px;
}

.section__title {
  font-size: clamp(1.75rem, 3.5vw, 2.75rem);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--clr-text);
  margin-bottom: 16px;
}

.section__subtitle {
  font-size: 1.0625rem;
  color: var(--clr-text-muted);
  max-width: 580px;
  margin: 0 auto;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 24px;
  border-radius: var(--radius-sm);
  font-size: 0.9375rem;
  font-weight: 600;
  font-family: var(--font);
  cursor: pointer;
  border: none;
  transition: var(--transition);
  white-space: nowrap;
}

.btn--primary {
  background: linear-gradient(135deg, var(--clr-grad-start), var(--clr-grad-end));
  color: #fff;
  box-shadow: 0 0 0 0 rgba(59,130,246,0);
}

.btn--primary:hover {
  filter: brightness(1.12);
  box-shadow: 0 0 32px rgba(59,130,246,0.35);
  transform: translateY(-1px);
}

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

.btn--ghost:hover {
  background: var(--clr-surface);
  border-color: rgba(255,255,255,0.18);
}

.btn--lg {
  padding: 14px 32px;
  font-size: 1rem;
}

.btn--full { width: 100%; justify-content: center; }

/* ---------- Header / Nav ---------- */
.header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  transition: background var(--transition), box-shadow var(--transition);
}

.header.scrolled {
  background: rgba(5,8,15,0.85);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  box-shadow: 0 1px 0 var(--clr-border);
}

.nav {
  display: flex;
  align-items: center;
  gap: 32px;
  height: 72px;
}

.nav__logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1rem;
  color: var(--clr-text);
  flex-shrink: 0;
}

.logo__icon { color: var(--clr-primary); line-height: 0; }
.logo__text { letter-spacing: -0.01em; }

.nav__menu {
  display: flex;
  gap: 4px;
  margin-left: auto;
}

.nav__link {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--clr-text-muted);
  padding: 6px 14px;
  border-radius: var(--radius-sm);
  transition: var(--transition);
}

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

.nav__cta { margin-left: 8px; }

.nav__hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  margin-left: auto;
}

.nav__hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--clr-text);
  border-radius: 2px;
  transition: var(--transition);
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 120px 0 80px;
  overflow: hidden;
}

.hero__bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.hero__orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.18;
}

.hero__orb--1 {
  width: 600px; height: 600px;
  background: radial-gradient(circle, #3b82f6, transparent 70%);
  top: -200px; left: -100px;
}

.hero__orb--2 {
  width: 400px; height: 400px;
  background: radial-gradient(circle, #06b6d4, transparent 70%);
  bottom: -100px; right: 10%;
}

.hero__orb--3 {
  width: 300px; height: 300px;
  background: radial-gradient(circle, #8b5cf6, transparent 70%);
  top: 40%; right: -50px;
  opacity: 0.12;
}

.hero__grid {
  position: absolute;
  inset: 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% 80% at 50% 50%, black, transparent);
}

.hero__container {
  position: relative;
  z-index: 1;
  max-width: 820px;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--clr-text-muted);
  border: 1px solid var(--clr-border);
  background: rgba(255,255,255,0.03);
  padding: 6px 14px;
  border-radius: 999px;
  margin-bottom: 28px;
  backdrop-filter: blur(8px);
}

.badge__dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: #22c55e;
  box-shadow: 0 0 8px #22c55e;
}

.hero__title {
  font-size: clamp(2.5rem, 6vw, 4.25rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 24px;
}

.hero__subtitle {
  font-size: clamp(1rem, 2vw, 1.1875rem);
  color: var(--clr-text-muted);
  max-width: 600px;
  margin-bottom: 40px;
  line-height: 1.75;
}

.hero__actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 64px;
}

.hero__stats {
  display: flex;
  align-items: center;
  gap: 32px;
  flex-wrap: wrap;
}

.stat__number {
  display: block;
  font-size: 1.75rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--clr-text), var(--clr-text-muted));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -0.02em;
}

.stat__label {
  display: block;
  font-size: 0.8125rem;
  color: var(--clr-text-faint);
  font-weight: 500;
}

.stat__divider {
  width: 1px;
  height: 40px;
  background: var(--clr-border);
}

/* ---------- Services ---------- */
.services {
  background: var(--clr-bg-2);
}

.services__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.service-card--wide {
  grid-column: span 2;
}

.service-card {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  padding: 36px 32px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(59,130,246,0.06), rgba(6,182,212,0.03));
  opacity: 0;
  transition: var(--transition);
  border-radius: inherit;
}

.service-card:hover {
  border-color: rgba(59,130,246,0.3);
  transform: translateY(-4px);
  box-shadow: var(--shadow-card);
}

.service-card:hover::before { opacity: 1; }

.service-card__icon {
  width: 52px; height: 52px;
  border-radius: var(--radius-sm);
  background: rgba(59,130,246,0.1);
  border: 1px solid rgba(59,130,246,0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
  color: var(--clr-primary);
  position: relative;
  z-index: 1;
}

.service-card__icon svg { width: 24px; height: 24px; }

.service-card__title {
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: 12px;
  position: relative;
  z-index: 1;
}

.service-card__text {
  font-size: 0.9375rem;
  color: var(--clr-text-muted);
  margin-bottom: 20px;
  line-height: 1.7;
  position: relative;
  z-index: 1;
}

.service-card__list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  position: relative;
  z-index: 1;
}

.service-card__list li {
  font-size: 0.875rem;
  color: var(--clr-text-muted);
  padding-left: 18px;
  position: relative;
}

.service-card__list li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--clr-primary);
  font-size: 0.8rem;
}

.service-card__list--inline {
  flex-direction: row;
  flex-wrap: wrap;
  gap: 10px;
}

.service-card__list--inline li {
  background: rgba(59,130,246,0.08);
  border: 1px solid rgba(59,130,246,0.2);
  border-radius: 999px;
  padding: 4px 14px 4px 14px;
  font-size: 0.8125rem;
  color: var(--clr-primary);
  font-weight: 500;
}

.service-card__list--inline li::before { display: none; }

/* ---------- About ---------- */
.about__container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.about__visual {
  position: relative;
  height: 420px;
}

.about__card {
  position: absolute;
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow-card);
}

.about__card--main {
  top: 0; left: 0;
  width: 220px;
}

.about__card-icon {
  color: var(--clr-primary);
  margin-bottom: 12px;
}
.about__card-icon svg { width: 28px; height: 28px; }

.about__card--secondary {
  top: 120px; right: 0;
  width: 180px;
}

.about__card--tertiary {
  bottom: 40px; left: 60px;
  width: 160px;
}

.about__card-label {
  font-size: 0.8rem;
  color: var(--clr-text-faint);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 4px;
}

.about__card-value {
  font-size: 1.125rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--clr-grad-start), var(--clr-grad-end));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.about__lines {
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
}

.about__line {
  position: absolute;
  background: linear-gradient(to bottom, var(--clr-primary), transparent);
  opacity: 0.12;
  border-radius: 2px;
}

.about__line:first-child {
  width: 1px; height: 200px;
  top: 60px; left: 110px;
}

.about__line:last-child {
  width: 200px; height: 1px;
  top: 200px; left: 0;
}

.about__content .section__tag { margin-bottom: 12px; }
.about__content .section__title { text-align: left; margin-bottom: 20px; }

.about__text {
  font-size: 0.9875rem;
  color: var(--clr-text-muted);
  margin-bottom: 18px;
  line-height: 1.75;
}

.about__pillars {
  display: flex;
  flex-direction: column;
  gap: 18px;
  margin-top: 32px;
}

.pillar {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.pillar__icon {
  flex-shrink: 0;
  width: 28px; height: 28px;
  background: rgba(59,130,246,0.1);
  border: 1px solid rgba(59,130,246,0.25);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  color: var(--clr-primary);
  font-weight: 700;
  margin-top: 2px;
}

.pillar strong {
  display: block;
  font-size: 0.9375rem;
  font-weight: 600;
  margin-bottom: 4px;
}

.pillar p {
  font-size: 0.875rem;
  color: var(--clr-text-muted);
}

/* ---------- Why Us ---------- */
.why-us {
  background: var(--clr-bg-2);
}

.why-us__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.why-card {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius);
  padding: 36px 28px;
  transition: var(--transition);
}

.why-card:hover {
  border-color: rgba(59,130,246,0.3);
  transform: translateY(-4px);
  box-shadow: var(--shadow-card);
}

.why-card__number {
  font-size: 2.5rem;
  font-weight: 900;
  background: linear-gradient(135deg, var(--clr-grad-start), var(--clr-grad-end));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  opacity: 0.5;
  margin-bottom: 20px;
  letter-spacing: -0.02em;
}

.why-card h3 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.why-card p {
  font-size: 0.9rem;
  color: var(--clr-text-muted);
  line-height: 1.7;
}

/* ---------- Contact ---------- */
.contact__container {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 80px;
  align-items: start;
}

.contact__info .section__tag { margin-bottom: 12px; }
.contact__info .section__title { text-align: left; margin-bottom: 16px; }

.contact__text {
  font-size: 0.9875rem;
  color: var(--clr-text-muted);
  margin-bottom: 40px;
  line-height: 1.75;
}

.contact__details {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.contact__detail {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  transition: var(--transition);
}

a.contact__detail:hover .contact__detail-value { color: var(--clr-primary); }

.contact__detail-icon {
  flex-shrink: 0;
  width: 44px; height: 44px;
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--clr-primary);
}

.contact__detail-icon svg { width: 20px; height: 20px; }

.contact__detail-label {
  display: block;
  font-size: 0.8rem;
  color: var(--clr-text-faint);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 2px;
}

.contact__detail-value {
  font-size: 0.9375rem;
  font-weight: 500;
  transition: var(--transition);
  line-height: 1.5;
}

/* Contact Form */
.contact__form-wrap {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  padding: 40px;
}

.contact__form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.form__group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form__group label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--clr-text);
}

.form__group input,
.form__group select,
.form__group textarea {
  background: var(--clr-bg);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-sm);
  color: var(--clr-text);
  font-family: var(--font);
  font-size: 0.9375rem;
  padding: 12px 16px;
  transition: var(--transition);
  outline: none;
  resize: vertical;
}

.form__group select {
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2394a3b8' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  background-size: 18px;
  padding-right: 44px;
}

.form__group select option {
  background: var(--clr-surface);
  color: var(--clr-text);
}

.form__group input:focus,
.form__group select:focus,
.form__group textarea:focus {
  border-color: var(--clr-primary);
  box-shadow: 0 0 0 3px rgba(59,130,246,0.15);
}

.form__group input::placeholder,
.form__group textarea::placeholder { color: var(--clr-text-faint); }

.form__note {
  text-align: center;
  font-size: 0.8125rem;
  color: var(--clr-text-faint);
  margin-top: -6px;
}

/* ---------- Footer ---------- */
.footer {
  background: var(--clr-bg-2);
  border-top: 1px solid var(--clr-border);
  padding-top: 72px;
}

.footer__container {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 64px;
  padding-bottom: 56px;
}

.footer__logo { margin-bottom: 16px; }
.footer__tagline { font-size: 0.9rem; color: var(--clr-text-faint); }

.footer__links {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.footer__col h4 {
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--clr-text);
  margin-bottom: 16px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.footer__col ul {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer__col a {
  font-size: 0.9rem;
  color: var(--clr-text-faint);
  transition: var(--transition);
}

.footer__col a:hover { color: var(--clr-primary); }

.footer__bottom {
  border-top: 1px solid var(--clr-border);
  padding: 20px 0;
}

.footer__bottom-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 0.8125rem;
  color: var(--clr-text-faint);
}

.footer__legal-link {
  font-size: 0.8125rem;
  color: var(--clr-text-faint);
  transition: var(--transition);
}

.footer__legal-link:hover { color: var(--clr-primary); }

/* ---------- Animations ---------- */
.fade-up {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-up.visible {
  opacity: 1;
  transform: none;
}

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  .services__grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .service-card--wide {
    grid-column: span 2;
  }
  .why-us__grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .about__container {
    grid-template-columns: 1fr;
    gap: 48px;
  }
  .about__visual {
    height: 300px;
    max-width: 420px;
  }
  .contact__container {
    grid-template-columns: 1fr;
    gap: 48px;
  }
  .footer__container {
    grid-template-columns: 1fr;
    gap: 40px;
  }
}

@media (max-width: 768px) {
  .section { padding: 72px 0; }

  .nav__menu { display: none; flex-direction: column; gap: 4px; }
  .nav__cta { display: none; }
  .nav__hamburger { display: flex; }

  .nav__menu.open {
    display: flex;
    position: fixed;
    top: 72px; left: 0; right: 0;
    background: rgba(5,8,15,0.97);
    backdrop-filter: blur(20px);
    padding: 20px 24px;
    border-bottom: 1px solid var(--clr-border);
  }

  .nav__menu.open .nav__link {
    font-size: 1rem;
    padding: 10px 14px;
  }

  .services__grid { grid-template-columns: 1fr; }
  .service-card--wide { grid-column: span 1; }
  .why-us__grid { grid-template-columns: 1fr; }

  .hero__stats { gap: 20px; }
  .stat__divider { display: none; }

  .footer__links { grid-template-columns: 1fr 1fr; }
  .footer__bottom-inner { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 480px) {
  .hero__title { font-size: 2.25rem; }
  .hero__actions { flex-direction: column; }
  .hero__actions .btn { width: 100%; justify-content: center; }
  .contact__form-wrap { padding: 24px 20px; }
  .footer__links { grid-template-columns: 1fr; }
}