/* ============================================================
   SmartECM — Corporate Website Stylesheet
   Palette: White / Black / Reflex Blue (#0033A0)
   ============================================================ */

/* --- Custom Properties ------------------------------------ */
:root {
  --color-primary: #0033A0;
  --color-primary-dark: #002080;
  --color-primary-light: #E8EEF8;
  --color-text: #1A1A2E;
  --color-text-light: #555555;
  --color-text-muted: #777777;
  --color-bg: #FFFFFF;
  --color-bg-alt: #F7F8FA;
  --color-border: #E0E0E0;
  --color-border-light: #EEEEEE;

  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
  --font-mono: 'SF Mono', 'Fira Code', 'Fira Mono', Menlo, Consolas, monospace;

  --max-width: 1200px;
  --header-height: 72px;

  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2.5rem;
  --space-xl: 4rem;
  --space-2xl: 6rem;

  --radius: 6px;
  --radius-lg: 10px;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.1);
  --transition: 0.2s ease;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-height);
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-family);
  font-size: 1rem;
  line-height: 1.7;
  color: var(--color-text);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

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

a:hover {
  color: var(--color-primary-dark);
}

ul, ol {
  list-style: none;
}

/* --- Skip Link -------------------------------------------- */
.skip-link {
  position: absolute;
  top: -100%;
  left: 16px;
  z-index: 9999;
  padding: 0.75rem 1.25rem;
  background: var(--color-primary);
  color: #fff;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 0.875rem;
}

.skip-link:focus {
  top: 8px;
  color: #fff;
}

/* --- Typography ------------------------------------------- */
h1, h2, h3, h4, h5, h6 {
  line-height: 1.2;
  font-weight: 700;
  color: var(--color-text);
}

h1 { font-size: clamp(2rem, 5vw, 3.25rem); }
h2 { font-size: clamp(1.6rem, 3.5vw, 2.25rem); }
h3 { font-size: clamp(1.15rem, 2.5vw, 1.4rem); }
h4 { font-size: 1.1rem; }

p {
  margin-bottom: 1rem;
}

.text-muted {
  color: var(--color-text-light);
}

.text-small {
  font-size: 0.875rem;
}

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

.section {
  padding: var(--space-2xl) 0;
}

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

.section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto var(--space-xl);
}

.section-header h2 {
  margin-bottom: var(--space-sm);
}

.section-header p {
  color: var(--color-text-light);
  font-size: 1.1rem;
  line-height: 1.7;
}

.section-label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: var(--space-xs);
}

/* --- Grid ------------------------------------------------- */
.grid {
  display: grid;
  gap: var(--space-md);
}

.grid--2 { grid-template-columns: 1fr; }
.grid--3 { grid-template-columns: 1fr; }
.grid--4 { grid-template-columns: 1fr; }

@media (min-width: 640px) {
  .grid--2 { grid-template-columns: repeat(2, 1fr); }
  .grid--3 { grid-template-columns: repeat(2, 1fr); }
  .grid--4 { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1024px) {
  .grid--3 { grid-template-columns: repeat(3, 1fr); }
  .grid--4 { grid-template-columns: repeat(4, 1fr); }
}

/* --- Header ----------------------------------------------- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 1000;
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.header.scrolled {
  border-bottom-color: var(--color-border-light);
  box-shadow: var(--shadow-sm);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.header__logo img {
  height: 32px;
  width: auto;
}

.header__nav {
  display: none;
  align-items: center;
  gap: var(--space-md);
}

@media (min-width: 1024px) {
  .header__nav {
    display: flex;
  }
}

.header__nav a {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text-light);
  transition: color var(--transition);
  white-space: nowrap;
}

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

.header__actions {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.lang-switch {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-text-muted);
}

.lang-switch a {
  color: var(--color-text-muted);
  padding: 0.2rem 0.4rem;
  border-radius: 3px;
  transition: color var(--transition), background var(--transition);
}

.lang-switch a:hover {
  color: var(--color-primary);
}

.lang-switch a.active {
  color: var(--color-primary);
  background: var(--color-primary-light);
}

.lang-switch__sep {
  color: var(--color-border);
  user-select: none;
}

/* Hamburger */
.menu-toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 28px;
  height: 28px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
}

.menu-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}

.menu-toggle.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.menu-toggle.open span:nth-child(2) {
  opacity: 0;
}

.menu-toggle.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

@media (min-width: 1024px) {
  .menu-toggle {
    display: none;
  }
}

/* Mobile Nav */
.mobile-nav {
  display: none;
  position: fixed;
  top: var(--header-height);
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--color-bg);
  z-index: 999;
  padding: var(--space-lg) var(--space-md);
  overflow-y: auto;
}

.mobile-nav.open {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.mobile-nav a {
  display: block;
  padding: 0.75rem 0;
  font-size: 1.1rem;
  font-weight: 500;
  color: var(--color-text);
  border-bottom: 1px solid var(--color-border-light);
}

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

/* --- Buttons ---------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.7rem 1.5rem;
  font-family: var(--font-family);
  font-size: 0.9rem;
  font-weight: 600;
  border-radius: var(--radius);
  border: 2px solid transparent;
  cursor: pointer;
  transition: background var(--transition), color var(--transition), border-color var(--transition), box-shadow var(--transition);
  white-space: nowrap;
  text-decoration: none;
}

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

.btn--primary:hover {
  background: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
  color: #fff;
}

.btn--outline {
  background: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}

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

.btn--sm {
  padding: 0.5rem 1rem;
  font-size: 0.8rem;
}

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

.btn--white:hover {
  background: var(--color-primary-light);
  border-color: var(--color-primary-light);
  color: var(--color-primary-dark);
}

/* --- Hero ------------------------------------------------- */
.hero {
  padding: calc(var(--header-height) + var(--space-2xl)) 0 var(--space-2xl);
  text-align: center;
}

.hero__content {
  max-width: 820px;
  margin: 0 auto;
}

.hero h1 {
  margin-bottom: var(--space-md);
  letter-spacing: -0.02em;
}

.hero h1 .accent {
  color: var(--color-primary);
}

.hero__subtitle {
  font-size: clamp(1.05rem, 2vw, 1.25rem);
  color: var(--color-text-light);
  line-height: 1.7;
  max-width: 680px;
  margin: 0 auto var(--space-lg);
}

.hero__actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  flex-wrap: wrap;
}

.hero__badges {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-lg);
  margin-top: var(--space-xl);
  flex-wrap: wrap;
}

.hero__badge {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.25rem;
}

.hero__badge-value {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--color-primary);
  line-height: 1;
}

.hero__badge-label {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* --- Cards ------------------------------------------------ */
.card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  transition: box-shadow var(--transition), transform var(--transition);
}

.card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.card__icon {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-primary-light);
  color: var(--color-primary);
  border-radius: var(--radius);
  margin-bottom: var(--space-sm);
}

.card__icon svg {
  width: 22px;
  height: 22px;
  stroke: currentColor;
  fill: none;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.card h3 {
  margin-bottom: 0.5rem;
}

.card p {
  color: var(--color-text-light);
  font-size: 0.95rem;
  margin-bottom: 0;
  line-height: 1.65;
}

/* Card on alt background */
.section--alt .card {
  background: var(--color-bg);
}

/* --- Module Cards ----------------------------------------- */
.module-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  position: relative;
  overflow: hidden;
  transition: box-shadow var(--transition), transform var(--transition);
}

.module-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--color-primary);
}

.module-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.module-card h3 {
  margin-bottom: 0.5rem;
  color: var(--color-primary);
}

.module-card p {
  color: var(--color-text-light);
  font-size: 0.95rem;
  margin-bottom: 0;
  line-height: 1.65;
}

.module-card__tag {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-primary);
  background: var(--color-primary-light);
  padding: 0.2rem 0.6rem;
  border-radius: 3px;
  margin-bottom: var(--space-sm);
}

/* --- Tech Stack ------------------------------------------- */
.tech-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-sm);
}

@media (min-width: 640px) {
  .tech-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 1024px) {
  .tech-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.tech-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.9rem 1rem;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font-size: 0.9rem;
  font-weight: 500;
  transition: border-color var(--transition);
}

.tech-item:hover {
  border-color: var(--color-primary);
}

.tech-item__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-primary);
  flex-shrink: 0;
}

/* --- Compliance List -------------------------------------- */
.compliance-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-md);
}

@media (min-width: 768px) {
  .compliance-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.compliance-item {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}

.compliance-item__icon {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-primary-light);
  color: var(--color-primary);
  border-radius: var(--radius);
  flex-shrink: 0;
}

.compliance-item__icon svg {
  width: 20px;
  height: 20px;
  stroke: currentColor;
  fill: none;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.compliance-item h4 {
  margin-bottom: 0.25rem;
}

.compliance-item p {
  color: var(--color-text-light);
  font-size: 0.9rem;
  margin-bottom: 0;
}

/* --- Deployment / Cloud ----------------------------------- */
.deploy-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  justify-content: center;
  margin-bottom: var(--space-lg);
}

.deploy-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.6rem 1.2rem;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 50px;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-text);
  transition: border-color var(--transition), box-shadow var(--transition);
}

.deploy-badge:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-sm);
}

.deploy-features {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-sm);
  max-width: 800px;
  margin: 0 auto;
}

@media (min-width: 640px) {
  .deploy-features {
    grid-template-columns: repeat(2, 1fr);
  }
}

.deploy-feature {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1rem 1.25rem;
  border-left: 3px solid var(--color-primary);
  background: var(--color-bg-alt);
  border-radius: 0 var(--radius) var(--radius) 0;
  font-size: 0.95rem;
  font-weight: 500;
}

/* --- Industries ------------------------------------------- */
.industry-card {
  text-align: center;
  padding: var(--space-lg);
}

.industry-card__icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-primary-light);
  color: var(--color-primary);
  border-radius: 50%;
  margin: 0 auto var(--space-sm);
}

.industry-card__icon svg {
  width: 26px;
  height: 26px;
  stroke: currentColor;
  fill: none;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.industry-card h3 {
  font-size: 1.1rem;
  margin-bottom: 0.4rem;
}

.industry-card p {
  color: var(--color-text-light);
  font-size: 0.9rem;
  margin-bottom: 0;
}

/* --- CTA Section ------------------------------------------ */
.cta-section {
  background: var(--color-primary);
  color: #fff;
  text-align: center;
  padding: var(--space-2xl) 0;
}

.cta-section h2 {
  color: #fff;
  margin-bottom: var(--space-sm);
}

.cta-section p {
  color: rgba(255, 255, 255, 0.85);
  font-size: 1.1rem;
  max-width: 600px;
  margin: 0 auto var(--space-lg);
}

.cta-section .cta-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  flex-wrap: wrap;
}

.cta-contact {
  margin-top: var(--space-lg);
  max-width: 36rem;
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

.cta-contact__emails {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 0.35rem 0.75rem;
  margin: 0 0 var(--space-md);
  font-size: 0.95rem;
}

.cta-contact__emails a {
  color: #fff;
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-color: rgba(255, 255, 255, 0.45);
}

.cta-contact__emails a:hover {
  color: #fff;
  text-decoration-color: rgba(255, 255, 255, 0.9);
}

.cta-contact__sep {
  color: rgba(255, 255, 255, 0.45);
  user-select: none;
}

.cta-contact__predix {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-top: var(--space-xs);
  font-size: 0.95rem;
  font-weight: 600;
  color: #fff;
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-color: rgba(255, 255, 255, 0.45);
}

.cta-contact__predix:hover {
  color: #fff;
  text-decoration-color: rgba(255, 255, 255, 0.95);
}

/* --- Footer ----------------------------------------------- */
.footer {
  background: var(--color-text);
  color: rgba(255, 255, 255, 0.7);
  padding: var(--space-xl) 0 var(--space-lg);
}

.footer__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-lg);
}

@media (min-width: 768px) {
  .footer__inner {
    grid-template-columns: 2fr 1fr 1fr 1fr;
  }
}

.footer__brand p {
  font-size: 0.9rem;
  line-height: 1.7;
  margin-top: var(--space-sm);
  margin-bottom: 0;
}

.footer__logo {
  height: 28px;
  width: auto;
  filter: brightness(0) invert(1);
}

.footer__group h4 {
  color: #fff;
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--space-sm);
}

.footer__group a {
  display: block;
  color: rgba(255, 255, 255, 0.65);
  font-size: 0.875rem;
  padding: 0.2rem 0;
  transition: color var(--transition);
}

.footer__group a:hover {
  color: #fff;
}

.footer__bottom {
  margin-top: var(--space-lg);
  padding-top: var(--space-md);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
  align-items: center;
  text-align: center;
  font-size: 0.8rem;
}

@media (min-width: 768px) {
  .footer__bottom {
    flex-direction: row;
    justify-content: space-between;
    align-items: flex-start;
    text-align: left;
  }
}

.footer__copyright {
  max-width: 42rem;
  margin: 0;
  line-height: 1.55;
  color: rgba(255, 255, 255, 0.65);
}

.footer__meta {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  align-items: center;
  flex-shrink: 0;
}

@media (min-width: 768px) {
  .footer__meta {
    align-items: flex-end;
    text-align: right;
  }
}

.footer__meta a {
  color: rgba(255, 255, 255, 0.65);
}

.footer__meta a:hover {
  color: #fff;
}

/* --- Utilities -------------------------------------------- */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.text-center { text-align: center; }
.mt-sm { margin-top: var(--space-sm); }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }
.mb-0 { margin-bottom: 0; }

/* --- Fade In Animation ------------------------------------ */
.fade-in {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

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

/* --- Responsive Adjustments ------------------------------- */
@media (max-width: 639px) {
  .section {
    padding: var(--space-xl) 0;
  }

  .hero {
    padding: calc(var(--header-height) + var(--space-xl)) 0 var(--space-xl);
  }

  .hero__badges {
    gap: var(--space-md);
  }
}