/* ============================================
   razvanvirlan.ro — Design System & Styles
   Mobile-first, Emerald + Dark Slate palette
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap');

/* --- Custom Properties --- */
:root {
  --color-primary: #0f172a;
  --color-primary-light: #1e293b;
  --color-accent: #10b981;
  --color-accent-dark: #059669;
  --color-accent-light: #d1fae5;
  --color-accent-glow: rgba(16, 185, 129, 0.15);
  --color-bg: #f8fafc;
  --color-surface: #ffffff;
  --color-text: #1e293b;
  --color-text-secondary: #64748b;
  --color-text-light: #94a3b8;
  --color-border: #e2e8f0;
  --color-dark-bg: #0f172a;
  --color-dark-surface: #1e293b;
  --color-danger: #ef4444;
  --color-danger-light: rgba(239, 68, 68, 0.1);

  --font: 'Inter', system-ui, -apple-system, sans-serif;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
  --shadow-lg: 0 12px 32px rgba(0,0,0,0.1);
  --shadow-xl: 0 24px 48px rgba(0,0,0,0.12);
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --max-width: 1200px;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
  font-size: 16px;
}

body {
  font-family: var(--font);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; transition: var(--transition); }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }

.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* --- Section Base --- */
.section { padding: 80px 0; }
.section--dark {
  background: var(--color-dark-bg);
  color: #f1f5f9;
}
.section--dark .section__subtitle { color: #94a3b8; }

.section__badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: var(--color-accent-glow);
  color: var(--color-accent);
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 16px;
}

.section__title {
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 16px;
}

.section__subtitle {
  font-size: 1.05rem;
  color: var(--color-text-secondary);
  max-width: 600px;
  line-height: 1.7;
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.95rem;
  transition: var(--transition);
  white-space: nowrap;
}

.btn--primary {
  background: var(--color-accent);
  color: #fff;
  box-shadow: 0 4px 14px rgba(16, 185, 129, 0.3);
}
.btn--primary:hover {
  background: var(--color-accent-dark);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(16, 185, 129, 0.4);
}

.btn--outline {
  border: 2px solid var(--color-border);
  color: var(--color-text);
  background: transparent;
}
.btn--outline:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.btn--dark-outline {
  border: 2px solid rgba(255,255,255,0.2);
  color: #fff;
}
.btn--dark-outline:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.btn--whatsapp {
  background: #25d366;
  color: #fff;
}
.btn--whatsapp:hover {
  background: #1fb855;
  transform: translateY(-2px);
}

/* ============================================
   NAVIGATION
   ============================================ */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  padding: 20px 0;
  transition: var(--transition);
}

.navbar.scrolled {
  padding: 12px 0;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
}

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

.navbar__logo {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: -0.02em;
}
.navbar__logo span { color: var(--color-accent); }

.navbar__links {
  display: none;
  gap: 32px;
}
.navbar__links a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text-secondary);
}
.navbar__links a:hover { color: var(--color-accent); }

.navbar__cta { display: none; }

.navbar__menu-btn {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
}
.navbar__menu-btn span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-primary);
  border-radius: 2px;
  transition: var(--transition);
}
.navbar__menu-btn.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.navbar__menu-btn.active span:nth-child(2) { opacity: 0; }
.navbar__menu-btn.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* Mobile Menu */
.mobile-menu {
  position: fixed;
  top: 0;
  right: -100%;
  width: 80%;
  max-width: 360px;
  height: 100vh;
  background: var(--color-surface);
  z-index: 999;
  padding: 100px 32px 40px;
  transition: right 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: var(--shadow-xl);
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.mobile-menu.active { right: 0; }
.mobile-menu a {
  display: block;
  padding: 14px 0;
  font-size: 1.1rem;
  font-weight: 500;
  color: var(--color-text);
  border-bottom: 1px solid var(--color-border);
}
.mobile-menu a:hover { color: var(--color-accent); }
.mobile-menu .btn { margin-top: 16px; text-align: center; justify-content: center; }

.mobile-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  z-index: 998;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
}
.mobile-overlay.active { opacity: 1; visibility: visible; }

/* ============================================
   HERO
   ============================================ */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 120px 0 80px;
  background: linear-gradient(135deg, #f8fafc 0%, #ecfdf5 30%, #f0fdf4 60%, #f8fafc 100%);
  background-size: 300% 300%;
  animation: heroGradient 12s ease infinite;
  position: relative;
  overflow: hidden;
}

@keyframes heroGradient {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, var(--color-accent-glow) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.hero__inner {
  display: flex;
  flex-direction: column-reverse;
  align-items: center;
  gap: 48px;
}

.hero__content { text-align: center; }

.hero__title {
  font-size: clamp(2rem, 5.5vw, 3.5rem);
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 20px;
  color: var(--color-primary);
}
.hero__title .accent { color: var(--color-accent); }

.hero__description {
  font-size: 1.05rem;
  color: var(--color-text-secondary);
  margin-bottom: 32px;
  max-width: 540px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.8;
}

.hero__ctas {
  display: flex;
  flex-direction: column;
  gap: 12px;
  align-items: center;
}

.hero__stats {
  display: flex;
  justify-content: center;
  gap: 32px;
  margin-top: 48px;
  padding-top: 32px;
  border-top: 1px solid var(--color-border);
}

.hero__stat-value {
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--color-accent);
  display: block;
}
.hero__stat-label {
  font-size: 0.8rem;
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.hero__image {
  position: relative;
  width: 260px;
  height: 260px;
  flex-shrink: 0;
}
.hero__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: var(--radius-xl);
  position: relative;
  z-index: 2;
}
.hero__image::before {
  content: '';
  position: absolute;
  inset: -6px;
  border-radius: calc(var(--radius-xl) + 6px);
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent-dark));
  z-index: 1;
  opacity: 0.6;
}
.hero__image::after {
  content: '';
  position: absolute;
  width: 80px;
  height: 80px;
  bottom: -12px;
  right: -12px;
  background: var(--color-accent-glow);
  border-radius: 50%;
  z-index: 0;
  filter: blur(20px);
}

/* ============================================
   PROBLEMA (Problem Section)
   ============================================ */
.problema { position: relative; }

.problema__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  margin-top: 48px;
}

.problema__card {
  background: var(--color-dark-surface);
  border-radius: var(--radius-md);
  padding: 28px;
  border: 1px solid rgba(255,255,255,0.06);
  transition: var(--transition);
}
.problema__card:hover {
  border-color: rgba(239, 68, 68, 0.2);
  transform: translateY(-4px);
}

.problema__card-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background: var(--color-danger-light);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
  color: var(--color-danger);
}
.problema__card-icon svg { width: 22px; height: 22px; }

.problema__card h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: #f1f5f9;
}

.problema__card p {
  font-size: 0.9rem;
  color: #94a3b8;
  line-height: 1.7;
}

.problema__transition {
  text-align: center;
  margin-top: 48px;
  padding-top: 40px;
  border-top: 1px solid rgba(255,255,255,0.08);
}
.problema__transition h3 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-accent);
  margin-bottom: 8px;
}
.problema__transition p {
  color: #94a3b8;
  font-size: 0.95rem;
}

/* ============================================
   SERVICII (Services)
   ============================================ */
.servicii__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  margin-top: 48px;
}

.servicii__card {
  background: var(--color-surface);
  border-radius: var(--radius-md);
  padding: 32px;
  border: 1px solid var(--color-border);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.servicii__card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--color-accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: var(--transition);
}
.servicii__card:hover {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}
.servicii__card:hover::before { transform: scaleX(1); }

.servicii__card-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  background: var(--color-accent-glow);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  color: var(--color-accent);
}
.servicii__card-icon svg { width: 26px; height: 26px; }

.servicii__card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 10px;
}

.servicii__card p {
  font-size: 0.92rem;
  color: var(--color-text-secondary);
  line-height: 1.7;
}

/* ============================================
   CUM LUCREZ (Process)
   ============================================ */
.process__steps {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  margin-top: 48px;
  position: relative;
}

.process__step {
  display: flex;
  gap: 20px;
  align-items: flex-start;
}

.process__step-number {
  width: 48px;
  height: 48px;
  min-width: 48px;
  border-radius: 50%;
  background: var(--color-accent);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 1.1rem;
  position: relative;
}

.process__step-content h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 6px;
}
.process__step-content .timeline {
  font-size: 0.8rem;
  color: var(--color-accent);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 8px;
}
.process__step-content p {
  font-size: 0.92rem;
  color: var(--color-text-secondary);
  line-height: 1.7;
}

/* ============================================
   REZULTATE (Case Studies)
   ============================================ */
.rezultate__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  margin-top: 48px;
}

.rezultate__card {
  background: var(--color-surface);
  border-radius: var(--radius-md);
  padding: 32px;
  border: 1px solid var(--color-border);
  transition: var(--transition);
}
.rezultate__card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.rezultate__card-tag {
  display: inline-block;
  padding: 4px 12px;
  background: var(--color-accent-glow);
  color: var(--color-accent-dark);
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 16px;
}

.rezultate__card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 16px;
}

.rezultate__card-detail {
  margin-bottom: 12px;
}
.rezultate__card-detail strong {
  font-size: 0.8rem;
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  display: block;
  margin-bottom: 4px;
}
.rezultate__card-detail p {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

.rezultate__card-result {
  margin-top: 20px;
  padding-top: 20px;
  border-top: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  gap: 12px;
}
.rezultate__card-result .metric {
  font-size: 2rem;
  font-weight: 800;
  color: var(--color-accent);
  line-height: 1;
}
.rezultate__card-result .metric-label {
  font-size: 0.85rem;
  color: var(--color-text-secondary);
}

/* ============================================
   DESPRE (About)
   ============================================ */
.despre {
  background: linear-gradient(180deg, var(--color-bg) 0%, #f0fdf4 100%);
}

.despre__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 40px;
}

.despre__image {
  width: 200px;
  height: 200px;
  border-radius: 50%;
  overflow: hidden;
  border: 4px solid var(--color-accent);
  flex-shrink: 0;
  box-shadow: 0 0 0 8px var(--color-accent-glow);
}
.despre__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.despre__text p {
  font-size: 1rem;
  color: var(--color-text-secondary);
  line-height: 1.8;
  margin-bottom: 16px;
}
.despre__text p:last-child {
  color: var(--color-accent-dark);
  font-weight: 600;
}

/* ============================================
   FAQ
   ============================================ */
.faq__list {
  margin-top: 48px;
  max-width: 800px;
}

.faq__item {
  border-bottom: 1px solid var(--color-border);
}

.faq__question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 0;
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-text);
  text-align: left;
  transition: var(--transition);
  gap: 16px;
}
.faq__question:hover { color: var(--color-accent); }

.faq__icon {
  width: 24px;
  height: 24px;
  min-width: 24px;
  transition: transform 0.3s ease;
}
.faq__item.active .faq__icon { transform: rotate(45deg); }

.faq__answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.3s ease;
}
.faq__answer-inner {
  padding-bottom: 20px;
  font-size: 0.92rem;
  color: var(--color-text-secondary);
  line-height: 1.8;
}

/* ============================================
   CONTACT
   ============================================ */
.contact__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 48px;
  margin-top: 48px;
}

.contact__info-item {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 24px;
}
.contact__info-icon {
  width: 48px;
  height: 48px;
  min-width: 48px;
  border-radius: var(--radius-sm);
  background: rgba(255,255,255,0.06);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-accent);
}
.contact__info-icon svg { width: 22px; height: 22px; }
.contact__info-label {
  font-size: 0.8rem;
  color: #94a3b8;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.contact__info-value {
  font-size: 1rem;
  font-weight: 600;
  color: #f1f5f9;
}
.contact__info-value a:hover { color: var(--color-accent); }

.contact__form {
  background: var(--color-dark-surface);
  border-radius: var(--radius-md);
  padding: 32px;
  border: 1px solid rgba(255,255,255,0.06);
}

.form__group {
  margin-bottom: 20px;
}
.form__group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 500;
  color: #cbd5e1;
  margin-bottom: 8px;
}
.form__group input,
.form__group textarea {
  width: 100%;
  padding: 14px 16px;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-sm);
  color: #f1f5f9;
  font-family: var(--font);
  font-size: 0.95rem;
  transition: var(--transition);
}
.form__group input:focus,
.form__group textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px var(--color-accent-glow);
}
.form__group textarea { resize: vertical; min-height: 100px; }
.form__group input::placeholder,
.form__group textarea::placeholder { color: #475569; }

.form__note {
  font-size: 0.8rem;
  color: #64748b;
  margin-top: 12px;
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
  background: var(--color-primary);
  padding: 32px 0;
  text-align: center;
  border-top: 1px solid rgba(255,255,255,0.06);
}
.footer p {
  font-size: 0.85rem;
  color: #64748b;
}

/* ============================================
   FLOATING WHATSAPP
   ============================================ */
.whatsapp-float {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 56px;
  height: 56px;
  background: #25d366;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  z-index: 900;
  box-shadow: 0 4px 16px rgba(37, 211, 102, 0.4);
  transition: var(--transition);
  animation: whatsappPulse 2s infinite;
}
.whatsapp-float:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 24px rgba(37, 211, 102, 0.5);
}
.whatsapp-float svg { width: 28px; height: 28px; }

@keyframes whatsappPulse {
  0%, 100% { box-shadow: 0 4px 16px rgba(37, 211, 102, 0.4); }
  50% { box-shadow: 0 4px 24px rgba(37, 211, 102, 0.6), 0 0 0 8px rgba(37, 211, 102, 0.1); }
}

/* ============================================
   ANIMATIONS
   ============================================ */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
  .reveal { opacity: 1; transform: none; }
  html { scroll-behavior: auto; }
}

/* ============================================
   RESPONSIVE — Tablet (768px+)
   ============================================ */
@media (min-width: 768px) {
  .section { padding: 100px 0; }

  .hero__inner {
    flex-direction: row;
    text-align: left;
  }
  .hero__content { text-align: left; }
  .hero__description { margin-left: 0; }
  .hero__ctas { flex-direction: row; }
  .hero__stats { justify-content: flex-start; }
  .hero__image { width: 300px; height: 300px; }

  .problema__grid { grid-template-columns: 1fr 1fr; }
  .servicii__grid { grid-template-columns: 1fr 1fr; }
  .rezultate__grid { grid-template-columns: 1fr 1fr; }

  .despre__inner { flex-direction: row; align-items: flex-start; }
  .despre__image { width: 240px; height: 240px; }

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

/* ============================================
   RESPONSIVE — Desktop (1024px+)
   ============================================ */
@media (min-width: 1024px) {
  .section { padding: 120px 0; }

  .navbar__links { display: flex; }
  .navbar__cta { display: inline-flex; }
  .navbar__menu-btn { display: none; }

  .hero { padding: 140px 0 100px; }
  .hero__image { width: 360px; height: 400px; }

  .servicii__grid { grid-template-columns: repeat(4, 1fr); }
  .rezultate__grid { grid-template-columns: repeat(3, 1fr); }
  
  .process__steps { grid-template-columns: repeat(4, 1fr); gap: 24px; }
  .process__step { flex-direction: column; text-align: center; }
  .process__step-content .timeline { text-align: center; }
}