/* ========================================
   ONLINEKAN - Main Stylesheet
   Minimalis & Clean | Hitam-Putih + Biru (#2563EB)
   ======================================== */

/* ---- CSS Variables ---- */
:root {
  --color-primary: #2563EB;
  --color-primary-dark: #1D4ED8;
  --color-primary-light: #3B82F6;
  --color-primary-bg: #EFF6FF;
  --color-text: #111827;
  --color-text-light: #6B7280;
  --color-text-muted: #9CA3AF;
  --color-bg: #FFFFFF;
  --color-bg-light: #F9FAFB;
  --color-bg-dark: #111827;
  --color-border: #E5E7EB;
  --color-white: #FFFFFF;
  --font-main: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-display: 'Plus Jakarta Sans', 'Inter', sans-serif;
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
  --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.07), 0 2px 4px -1px rgba(0,0,0,0.04);
  --shadow-lg: 0 10px 25px -3px rgba(0,0,0,0.08), 0 4px 6px -2px rgba(0,0,0,0.03);
  --shadow-xl: 0 20px 50px -12px rgba(0,0,0,0.15);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

body {
  font-family: var(--font-main);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

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

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

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-main);
  font-weight: 600;
  border: 2px solid transparent;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
}

.btn--sm { padding: 8px 20px; font-size: 14px; }
.btn--lg { padding: 14px 32px; font-size: 16px; }
.btn--block { width: 100%; }

.btn--primary {
  background: var(--color-primary);
  color: var(--color-white);
  border-color: var(--color-primary);
}
.btn--primary:hover {
  background: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(37, 99, 235, 0.3);
}

.btn--outline {
  background: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}
.btn--outline:hover {
  background: var(--color-primary);
  color: var(--color-white);
  transform: translateY(-2px);
}

.btn--white {
  background: var(--color-white);
  color: var(--color-primary);
  border-color: var(--color-white);
}
.btn--white:hover {
  background: transparent;
  color: var(--color-white);
  transform: translateY(-2px);
}

.btn--outline-white {
  background: transparent;
  color: var(--color-white);
  border-color: rgba(255,255,255,0.4);
}
.btn--outline-white:hover {
  background: rgba(255,255,255,0.15);
  border-color: var(--color-white);
  transform: translateY(-2px);
}

/* ---- Animation: Scroll Reveal ---- */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.animate-on-scroll.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ========================================
   NAVBAR
   ======================================== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255,255,255,0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid transparent;
  transition: all var(--transition);
}

.navbar.scrolled {
  background: rgba(255,255,255,0.98);
  border-bottom-color: var(--color-border);
  box-shadow: var(--shadow-sm);
}

.navbar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.navbar__logo {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 22px;
  color: var(--color-text);
  display: flex;
  align-items: center;
  gap: 4px;
}

.logo-icon {
  font-size: 24px;
}

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

.navbar__menu a {
  font-size: 15px;
  font-weight: 500;
  color: var(--color-text-light);
  position: relative;
}

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

.navbar__menu a:hover,
.navbar__menu a.active {
  color: var(--color-primary);
}

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

.navbar__actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

/* Language Toggle */
.lang-toggle {
  display: flex;
  align-items: center;
  gap: 6px;
  background: none;
  border: 1px solid var(--color-border);
  border-radius: 20px;
  padding: 6px 14px;
  cursor: pointer;
  font-family: var(--font-main);
  font-size: 13px;
  font-weight: 600;
  transition: all var(--transition);
}

.lang-toggle:hover { border-color: var(--color-primary); }

.lang-toggle__option {
  color: var(--color-text-muted);
  transition: color var(--transition);
}

.lang-toggle__option--active {
  color: var(--color-primary);
}

.lang-toggle__separator {
  color: var(--color-border);
}

/* Hamburger */
.navbar__hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  z-index: 1001;
}

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

.navbar__hamburger.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.navbar__hamburger.active span:nth-child(2) {
  opacity: 0;
}

.navbar__hamburger.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

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

.hero__bg-pattern {
  position: absolute;
  top: 0;
  right: 0;
  width: 50%;
  height: 100%;
  background:
    radial-gradient(circle at 70% 30%, rgba(37, 99, 235, 0.06) 0%, transparent 50%),
    radial-gradient(circle at 30% 70%, rgba(37, 99, 235, 0.04) 0%, transparent 50%);
  z-index: 0;
}

.hero__inner {
  position: relative;
  z-index: 1;
}

.hero__content {
  max-width: 700px;
}

.hero__badge {
  display: inline-block;
  background: var(--color-primary-bg);
  color: var(--color-primary);
  padding: 8px 20px;
  border-radius: 50px;
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 24px;
}

.hero__title {
  font-family: var(--font-display);
  font-size: clamp(36px, 5vw, 64px);
  font-weight: 800;
  line-height: 1.1;
  color: var(--color-text);
  margin-bottom: 24px;
}

.hero__subtitle {
  font-size: 18px;
  line-height: 1.7;
  color: var(--color-text-light);
  margin-bottom: 40px;
  max-width: 560px;
}

.hero__cta {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.hero__stats {
  display: flex;
  gap: 48px;
  margin-top: 80px;
  padding-top: 40px;
  border-top: 1px solid var(--color-border);
}

.stat {
  text-align: left;
}

.stat__number {
  font-family: var(--font-display);
  font-size: 42px;
  font-weight: 800;
  color: var(--color-text);
}

.stat__plus {
  font-family: var(--font-display);
  font-size: 28px;
  font-weight: 800;
  color: var(--color-primary);
}

.stat__label {
  display: block;
  font-size: 14px;
  color: var(--color-text-light);
  margin-top: 4px;
}

/* ========================================
   SECTIONS (shared)
   ======================================== */
.section {
  padding: 100px 0;
}

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

.section__header {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 60px;
}

.section__tag {
  display: inline-block;
  background: var(--color-primary-bg);
  color: var(--color-primary);
  padding: 6px 16px;
  border-radius: 50px;
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 16px;
}

.section__title {
  font-family: var(--font-display);
  font-size: clamp(28px, 3.5vw, 42px);
  font-weight: 800;
  line-height: 1.2;
  color: var(--color-text);
  margin-bottom: 16px;
}

.section__subtitle {
  font-size: 17px;
  line-height: 1.7;
  color: var(--color-text-light);
}

/* ========================================
   ABOUT / FEATURES
   ======================================== */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.feature-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 32px;
  transition: all var(--transition);
}

.feature-card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.feature-card__icon {
  font-size: 36px;
  margin-bottom: 16px;
}

.feature-card__title {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 8px;
}

.feature-card__desc {
  font-size: 15px;
  color: var(--color-text-light);
  line-height: 1.6;
}

/* ========================================
   SERVICES
   ======================================== */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.service-card {
  position: relative;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 32px;
  transition: all var(--transition);
}

.service-card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.service-card--featured {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
  background: linear-gradient(135deg, rgba(37,99,235,0.02), rgba(37,99,235,0.06));
}

.service-card__badge {
  position: absolute;
  top: -12px;
  left: 24px;
  background: var(--color-primary);
  color: var(--color-white);
  padding: 4px 14px;
  border-radius: 50px;
  font-size: 12px;
  font-weight: 700;
}

.service-card__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  background: var(--color-primary-bg);
  color: var(--color-primary);
  border-radius: var(--radius-sm);
  margin-bottom: 20px;
}

.service-card__title {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 10px;
}

.service-card__desc {
  font-size: 15px;
  color: var(--color-text-light);
  line-height: 1.6;
  margin-bottom: 20px;
}

.service-card__price {
  display: inline-block;
  font-size: 14px;
  font-weight: 700;
  color: var(--color-primary);
  background: var(--color-primary-bg);
  padding: 6px 14px;
  border-radius: 50px;
}

/* ========================================
   PORTFOLIO
   ======================================== */
.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.portfolio-card {
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  transition: all var(--transition);
}

.portfolio-card:hover {
  box-shadow: var(--shadow-xl);
  transform: translateY(-6px);
}

.portfolio-card__image {
  position: relative;
  height: 220px;
  overflow: hidden;
}

.portfolio-card__image--1 { background: linear-gradient(135deg, #667eea, #764ba2); }
.portfolio-card__image--2 { background: linear-gradient(135deg, #f093fb, #f5576c); }
.portfolio-card__image--3 { background: linear-gradient(135deg, #4facfe, #00f2fe); }
.portfolio-card__image--4 { background: linear-gradient(135deg, #43e97b, #38f9d7); }
.portfolio-card__image--5 { background: linear-gradient(135deg, #fa709a, #fee140); }
.portfolio-card__image--6 { background: linear-gradient(135deg, #a18cd1, #fbc2eb); }

.portfolio-card__overlay {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.3);
  display: flex;
  align-items: flex-end;
  padding: 16px;
  opacity: 0;
  transition: opacity var(--transition);
}

.portfolio-card:hover .portfolio-card__overlay {
  opacity: 1;
}

.portfolio-card__category {
  background: var(--color-white);
  color: var(--color-text);
  padding: 4px 12px;
  border-radius: 50px;
  font-size: 12px;
  font-weight: 600;
}

.portfolio-card__info {
  padding: 20px;
}

.portfolio-card__info h3 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 6px;
}

.portfolio-card__info p {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.5;
}

/* ========================================
   TESTIMONIALS
   ======================================== */
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.testimonial-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 32px;
  transition: all var(--transition);
}

.testimonial-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.testimonial-card__stars {
  font-size: 16px;
  margin-bottom: 16px;
  letter-spacing: 2px;
}

.testimonial-card__text {
  font-size: 15px;
  line-height: 1.7;
  color: var(--color-text-light);
  font-style: italic;
  margin-bottom: 24px;
}

.testimonial-card__author {
  display: flex;
  align-items: center;
  gap: 12px;
}

.testimonial-card__avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--color-primary);
  color: var(--color-white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 14px;
  flex-shrink: 0;
}

.testimonial-card__author strong {
  display: block;
  font-size: 15px;
}

.testimonial-card__author span {
  font-size: 13px;
  color: var(--color-text-muted);
}

/* ========================================
   PRICING
   ======================================== */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  align-items: start;
}

.pricing-card {
  position: relative;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 36px 32px;
  transition: all var(--transition);
}

.pricing-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.pricing-card--featured {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-lg);
  transform: scale(1.04);
}

.pricing-card--featured:hover {
  transform: scale(1.04) translateY(-4px);
  box-shadow: var(--shadow-xl);
}

.pricing-card__badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-primary);
  color: var(--color-white);
  padding: 6px 20px;
  border-radius: 50px;
  font-size: 13px;
  font-weight: 700;
  white-space: nowrap;
}

.pricing-card__header {
  text-align: center;
  margin-bottom: 24px;
}

.pricing-card__name {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 800;
  margin-bottom: 4px;
}

.pricing-card__desc {
  font-size: 14px;
  color: var(--color-text-light);
}

.pricing-card__price {
  text-align: center;
  margin-bottom: 32px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--color-border);
}

.pricing-card__currency {
  font-size: 18px;
  font-weight: 700;
  vertical-align: super;
  color: var(--color-text-light);
}

.pricing-card__amount {
  font-family: var(--font-display);
  font-size: 52px;
  font-weight: 800;
  color: var(--color-text);
  line-height: 1;
}

.pricing-card__unit {
  font-size: 16px;
  color: var(--color-text-light);
  font-weight: 500;
}

.pricing-card__features {
  margin-bottom: 32px;
}

.pricing-card__features li {
  padding: 8px 0;
  font-size: 14px;
  color: var(--color-text);
}

.pricing-card__feature--disabled {
  color: var(--color-text-muted) !important;
}

/* ========================================
   CTA SECTION
   ======================================== */
.cta-section {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  padding: 100px 0;
}

.cta-section__inner {
  text-align: center;
  max-width: 640px;
  margin: 0 auto;
}

.cta-section__title {
  font-family: var(--font-display);
  font-size: clamp(28px, 3.5vw, 42px);
  font-weight: 800;
  color: var(--color-white);
  margin-bottom: 16px;
}

.cta-section__subtitle {
  font-size: 17px;
  line-height: 1.7;
  color: rgba(255,255,255,0.85);
  margin-bottom: 40px;
}

.cta-section__actions {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

/* ========================================
   CONTACT
   ======================================== */
.contact-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 48px;
  align-items: start;
}

.contact-form {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 36px;
}

.contact-form__group {
  margin-bottom: 20px;
}

.contact-form__row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.contact-form label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--color-text);
}

.contact-form input,
.contact-form select,
.contact-form textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-family: var(--font-main);
  font-size: 15px;
  color: var(--color-text);
  background: var(--color-bg);
  transition: border-color var(--transition), box-shadow var(--transition);
}

.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.contact-form textarea { resize: vertical; }

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

.contact-info__card {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 20px;
  background: var(--color-bg-light);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
}

.contact-info__icon {
  font-size: 24px;
  flex-shrink: 0;
  margin-top: 2px;
}

.contact-info__card h4 {
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 4px;
}

.contact-info__card p {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.5;
}

/* ========================================
   FOOTER
   ======================================== */
.footer {
  background: var(--color-bg-dark);
  color: rgba(255,255,255,0.7);
  padding: 64px 0 0;
}

.footer__grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

.navbar__logo--light {
  color: var(--color-white);
}

.footer__brand p {
  margin-top: 16px;
  font-size: 14px;
  line-height: 1.6;
}

.footer__social {
  display: flex;
  gap: 12px;
  margin-top: 20px;
}

.footer__social-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: 50%;
  font-size: 12px;
  font-weight: 700;
  color: rgba(255,255,255,0.6);
  transition: all var(--transition);
}

.footer__social-link:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background: rgba(37, 99, 235, 0.1);
}

.footer__links h4 {
  color: var(--color-white);
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 20px;
}

.footer__links li {
  margin-bottom: 10px;
}

.footer__links a {
  font-size: 14px;
  color: rgba(255,255,255,0.6);
  transition: color var(--transition);
}

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

.footer__links li:not(:has(a)) {
  font-size: 14px;
}

.footer__bottom {
  padding: 24px 0;
  text-align: center;
  font-size: 14px;
  color: rgba(255,255,255,0.4);
}

/* ========================================
   RESPONSIVE
   ======================================== */

/* Tablet */
@media (max-width: 1024px) {
  .features-grid,
  .services-grid,
  .portfolio-grid,
  .testimonials-grid,
  .pricing-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer__grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .pricing-card--featured {
    transform: none;
  }
  .pricing-card--featured:hover {
    transform: translateY(-4px);
  }
}

/* Mobile */
@media (max-width: 768px) {
  .navbar__menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    background: var(--color-bg);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 24px;
    box-shadow: var(--shadow-xl);
    transition: right var(--transition);
  }

  .navbar__menu.active {
    right: 0;
  }

  .navbar__menu a {
    font-size: 18px;
  }

  .navbar__actions {
    display: none;
  }

  .navbar__hamburger {
    display: flex;
  }

  .hero {
    padding: 100px 0 60px;
    min-height: auto;
  }

  .hero__title {
    font-size: 32px;
  }

  .hero__subtitle {
    font-size: 16px;
  }

  .hero__stats {
    gap: 24px;
    margin-top: 48px;
  }

  .stat__number {
    font-size: 32px;
  }

  .features-grid,
  .services-grid,
  .portfolio-grid,
  .testimonials-grid,
  .pricing-grid {
    grid-template-columns: 1fr;
  }

  .section {
    padding: 64px 0;
  }

  .contact-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .contact-form__row {
    grid-template-columns: 1fr;
  }

  .footer__grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .cta-section {
    padding: 64px 0;
  }

  .hero__cta {
    flex-direction: column;
  }

  .cta-section__actions {
    flex-direction: column;
    align-items: center;
  }

  /* Show lang toggle in mobile */
  .lang-toggle--mobile {
    display: flex;
  }
}

@media (max-width: 480px) {
  .hero__stats {
    flex-direction: column;
    gap: 20px;
  }
  
  .container {
    padding: 0 16px;
  }
}