/* ========================================
   Memago GmbH - Main Stylesheet
   ======================================== */

/* CSS Custom Properties */
:root {
  /* Colors */
  --color-navy: #0A1628;
  --color-blue: #2563EB;
  --color-blue-dark: #1D4ED8;
  --color-teal: #0D9488;
  --color-light: #F8FAFC;
  --color-gray: #64748B;
  --color-gray-light: #E2E8F0;
  --color-white: #FFFFFF;

  /* Typography */
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

  /* Spacing */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2rem;
  --space-xl: 3rem;
  --space-2xl: 4rem;
  --space-3xl: 6rem;

  /* Layout */
  --max-width: 1200px;
  --nav-height: 72px;

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-normal: 250ms ease;

  /* Border radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--nav-height);
}

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

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

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

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

ul {
  list-style: none;
}

/* ========================================
   Typography
   ======================================== */
h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: 1.2;
  color: var(--color-navy);
}

h1 {
  font-size: clamp(2rem, 5vw, 3.5rem);
}

h2 {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  margin-bottom: var(--space-md);
}

h3 {
  font-size: 1.25rem;
  margin-bottom: var(--space-sm);
}

p {
  margin-bottom: var(--space-sm);
}

.text-gray {
  color: var(--color-gray);
}

.text-center {
  text-align: center;
}

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

.section {
  padding: var(--space-3xl) 0;
}

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

/* ========================================
   Buttons
   ======================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-sm) var(--space-lg);
  font-family: var(--font-primary);
  font-size: 1rem;
  font-weight: 500;
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
}

.btn--primary {
  background-color: var(--color-blue);
  color: var(--color-white);
}

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

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

.btn--outline:hover {
  background-color: var(--color-blue);
  color: var(--color-white);
}

/* ========================================
   Navigation
   ======================================== */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  background-color: var(--color-white);
  border-bottom: 1px solid var(--color-gray-light);
  z-index: 1000;
}

.nav__container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.nav__logo {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--color-navy);
  text-decoration: none;
}

.nav__logo:hover {
  color: var(--color-navy);
}

.nav__logo-icon {
  width: 32px;
  height: 32px;
}

.nav__logo-accent {
  color: var(--color-blue);
}

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

.nav__link {
  color: var(--color-navy);
  font-weight: 500;
  transition: color var(--transition-fast);
}

.nav__link:hover {
  color: var(--color-blue);
}

.nav__lang {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-xs) var(--space-sm);
  background-color: var(--color-light);
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  font-weight: 500;
}

.nav__lang-link {
  color: var(--color-gray);
}

.nav__lang-link--active {
  color: var(--color-navy);
}

.nav__lang-divider {
  color: var(--color-gray-light);
}

/* Mobile Navigation */
.nav__toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 32px;
  height: 32px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav__toggle-bar {
  width: 100%;
  height: 2px;
  background-color: var(--color-navy);
  border-radius: 2px;
  transition: all var(--transition-fast);
}

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

.nav__toggle.active .nav__toggle-bar:nth-child(2) {
  opacity: 0;
}

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

.nav__mobile {
  display: none;
  position: fixed;
  top: var(--nav-height);
  left: 0;
  right: 0;
  bottom: 0;
  background-color: var(--color-white);
  padding: var(--space-lg);
  flex-direction: column;
  gap: var(--space-md);
}

.nav__mobile.active {
  display: flex;
}

.nav__mobile-link {
  font-size: 1.25rem;
  color: var(--color-navy);
  padding: var(--space-sm) 0;
  border-bottom: 1px solid var(--color-gray-light);
}

/* ========================================
   Hero Section
   ======================================== */
.hero {
  padding-top: calc(var(--nav-height) + var(--space-3xl));
  padding-bottom: var(--space-3xl);
  background: linear-gradient(135deg, var(--color-light) 0%, var(--color-white) 100%);
}

.hero__content {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
}

.hero__title {
  margin-bottom: var(--space-md);
}

.hero__title-accent {
  color: var(--color-blue);
}

.hero__subtitle {
  font-size: 1.25rem;
  color: var(--color-gray);
  margin-bottom: var(--space-xl);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

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

/* ========================================
   Services Section
   ======================================== */
.services__grid {
  display: grid;
  gap: var(--space-lg);
  margin-top: var(--space-xl);
}

.service-card {
  background-color: var(--color-white);
  padding: var(--space-lg);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-gray-light);
  transition: all var(--transition-normal);
}

.service-card:hover {
  border-color: var(--color-blue);
  box-shadow: 0 4px 20px rgba(37, 99, 235, 0.1);
}

.service-card__icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-light);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-md);
  color: var(--color-blue);
}

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

.service-card__title {
  color: var(--color-navy);
}

.service-card__description {
  color: var(--color-gray);
  margin-bottom: var(--space-sm);
}

.service-card__list {
  margin-top: var(--space-sm);
}

.service-card__list-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-xs);
  color: var(--color-gray);
  font-size: 0.9rem;
  margin-bottom: var(--space-xs);
}

.service-card__list-item::before {
  content: "•";
  color: var(--color-teal);
  font-weight: bold;
}

/* ========================================
   About Section
   ======================================== */
.about__content {
  max-width: 700px;
  margin: 0 auto;
  text-align: center;
}

.about__text {
  max-width: 600px;
}

.about__lead {
  font-size: 1.25rem;
  color: var(--color-gray);
  margin-bottom: var(--space-lg);
}

.about__features {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
  max-width: 600px;
  margin: 0 auto;
}

.about__feature {
  background-color: var(--color-light);
  border-radius: var(--radius-lg);
  padding: var(--space-md);
  text-align: center;
}

.about__feature-icon {
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-teal);
  border-radius: 50%;
  color: var(--color-white);
  margin: 0 auto var(--space-sm);
}

.about__feature-icon svg {
  width: 14px;
  height: 14px;
}

.about__feature-text {
  font-weight: 500;
}

@media (max-width: 480px) {
  .about__features {
    grid-template-columns: 1fr;
  }
}

.about__founder {
  padding: var(--space-lg);
  background-color: var(--color-light);
  border-radius: var(--radius-lg);
  border-left: 4px solid var(--color-blue);
}

.about__founder-title {
  font-size: 0.875rem;
  color: var(--color-gray);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-xs);
}

.about__founder-text {
  color: var(--color-navy);
  margin-bottom: 0;
}

/* ========================================
   Founder Section
   ======================================== */
.founder {
  display: grid;
  gap: var(--space-lg);
  max-width: 640px;
  margin: 0 auto;
  text-align: center;
}

.founder > h2 {
  margin-bottom: 0;
}

.founder__image {
  display: flex;
  justify-content: center;
}

.founder__image img {
  width: 200px;
  height: 200px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--color-gray-light);
}

.founder__content h2 {
  margin-bottom: var(--space-md);
}

.founder__lead {
  font-size: 1.15rem;
  color: var(--color-gray);
  margin-bottom: var(--space-md);
}

.founder__content p {
  margin-bottom: var(--space-sm);
}

.founder__links {
  margin-top: var(--space-lg);
  display: flex;
  gap: var(--space-sm);
}

.founder__links .btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
}

@media (min-width: 640px) {
  .founder__content {
    text-align: left;
  }
}

/* ========================================
   Contact Section
   ======================================== */
#kontakt,
#contact {
  padding-top: var(--space-lg);
}

.contact__grid {
  display: grid;
  gap: var(--space-xl);
  margin-top: var(--space-xl);
}

.contact__info {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

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

.contact__item-icon {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-light);
  border-radius: var(--radius-md);
  color: var(--color-blue);
}

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

.contact__item-label {
  font-size: 0.875rem;
  color: var(--color-gray);
  margin-bottom: 2px;
}

.contact__item-value {
  font-weight: 500;
  color: var(--color-navy);
}

.contact__item-value a {
  color: var(--color-navy);
}

.contact__item-value a:hover {
  color: var(--color-blue);
}

/* Contact Form */
.contact__form {
  background-color: var(--color-light);
  padding: var(--space-lg);
  border-radius: var(--radius-lg);
  max-width: 600px;
  margin: var(--space-xl) auto 0;
}

.contact__form.is-submitting {
  opacity: 0.96;
}

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

.form__group {
  margin-bottom: var(--space-md);
}

.form__label {
  display: block;
  font-weight: 500;
  margin-bottom: var(--space-xs);
  color: var(--color-navy);
}

.form__label--optional::after {
  content: " (optional)";
  font-weight: 400;
  color: var(--color-gray);
}

.form__input,
.form__textarea {
  width: 100%;
  padding: var(--space-sm);
  font-family: var(--font-primary);
  font-size: 1rem;
  border: 1px solid var(--color-gray-light);
  border-radius: var(--radius-md);
  background-color: var(--color-white);
  transition: border-color var(--transition-fast);
}

.form__input:focus,
.form__textarea:focus {
  outline: none;
  border-color: var(--color-blue);
}

.form__textarea {
  min-height: 150px;
  resize: vertical;
}

.form__hidden-field {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.form__submit {
  width: 100%;
}

.form__submit:disabled {
  cursor: wait;
  opacity: 0.8;
}

.form__status {
  min-height: 1.5rem;
  margin-top: var(--space-md);
  margin-bottom: 0;
  font-size: 0.95rem;
}

.form__status--pending {
  color: var(--color-gray);
}

.form__status--success {
  color: #047857;
}

.form__status--error {
  color: #B91C1C;
}

@media (max-width: 640px) {
  .form__row {
    grid-template-columns: 1fr;
  }
}

/* ========================================
   Legal Pages
   ======================================== */
.legal-page {
  padding-top: calc(var(--nav-height) + var(--space-xl));
  padding-bottom: var(--space-3xl);
  background: linear-gradient(180deg, var(--color-light) 0%, var(--color-white) 100%);
}

.legal {
  max-width: 860px;
  margin: 0 auto;
}

.legal__header {
  margin-bottom: var(--space-xl);
}

.legal__eyebrow {
  display: inline-block;
  margin-bottom: var(--space-sm);
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-blue);
}

.legal__intro {
  max-width: 680px;
  font-size: 1.05rem;
  color: var(--color-gray);
}

.legal__meta {
  margin-top: var(--space-sm);
  color: var(--color-gray);
  font-size: 0.95rem;
}

.legal__content {
  background-color: var(--color-white);
  border: 1px solid var(--color-gray-light);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  box-shadow: 0 16px 40px rgba(10, 22, 40, 0.06);
}

.legal__section + .legal__section {
  margin-top: var(--space-xl);
  padding-top: var(--space-xl);
  border-top: 1px solid var(--color-gray-light);
}

.legal__section h2 {
  font-size: 1.5rem;
  margin-bottom: var(--space-sm);
}

.legal__section h3 {
  margin-top: var(--space-md);
}

.legal__section p:last-child,
.legal__section ul:last-child,
.legal__section address:last-child {
  margin-bottom: 0;
}

.legal__card {
  padding: var(--space-md);
  background-color: var(--color-light);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-gray-light);
}

.legal__address {
  font-style: normal;
  line-height: 1.7;
}

.legal__list {
  list-style: disc;
  padding-left: 1.25rem;
  margin-bottom: var(--space-sm);
}

.legal__list li {
  margin-bottom: var(--space-xs);
}

.legal__list li:last-child {
  margin-bottom: 0;
}

.legal__backlink {
  display: inline-flex;
  margin-top: var(--space-xl);
  font-weight: 500;
}

/* ========================================
   Footer
   ======================================== */
.footer {
  background-color: var(--color-navy);
  color: var(--color-white);
  padding: var(--space-xl) 0;
}

.footer__content {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

.footer__top {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.footer__logo {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--color-white);
}

.footer__logo-accent {
  color: var(--color-blue);
}

.footer__location {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  color: var(--color-gray);
  font-size: 0.9rem;
}

.footer__location svg {
  width: 16px;
  height: 16px;
}

.footer__links {
  display: flex;
  gap: var(--space-lg);
}

.footer__link {
  color: var(--color-gray);
  font-size: 0.9rem;
}

.footer__link:hover {
  color: var(--color-white);
}

.footer__bottom {
  padding-top: var(--space-lg);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer__copyright {
  color: var(--color-gray);
  font-size: 0.875rem;
}

/* ========================================
   Responsive Styles
   ======================================== */

/* Tablet (640px+) */
@media (min-width: 640px) {
  .services__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .contact__grid {
    grid-template-columns: 1fr 1fr;
    align-items: center;
  }

  .footer__content {
    flex-direction: row;
    justify-content: space-between;
    align-items: flex-start;
  }

  .footer__top {
    flex-direction: row;
    align-items: center;
    gap: var(--space-lg);
  }

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

/* Desktop (1024px+) */
@media (min-width: 1024px) {
  .nav__links {
    display: flex;
  }

  .nav__toggle {
    display: none;
  }

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

}

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