/* =============================================
   Specra - Global Styles
   ============================================= */

:root {
  /* Colors */
  --color-primary: #10b981;
  --color-primary-dark: #059669;
  --color-secondary: #3b82f6;
  --color-accent: #f97316;
  --color-accent-light: #fdba74;

  /* Gradient */
  --gradient-health: linear-gradient(135deg, #10b981 0%, #3b82f6 100%);
  --gradient-hero: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);

  /* Neutrals */
  --color-white: #ffffff;
  --color-gray-50: #f8fafc;
  --color-gray-100: #f1f5f9;
  --color-gray-200: #e2e8f0;
  --color-gray-300: #cbd5e1;
  --color-gray-400: #94a3b8;
  --color-gray-500: #64748b;
  --color-gray-600: #475569;
  --color-gray-700: #334155;
  --color-gray-800: #1e293b;
  --color-gray-900: #0f172a;

  /* Typography */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-display: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  --spacing-3xl: 4rem;

  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 200ms ease;
  --transition-slow: 300ms ease;

  /* Container */
  --container-max: 1200px;
  --container-narrow: 800px;
}

/* =============================================
   Reset & Base
   ============================================= */

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-gray-700);
  background-color: var(--color-white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  color: #1e40af;
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:visited {
  color: #1e40af;
}

a:hover {
  color: #1e3a8a;
}

button {
  font-family: inherit;
  cursor: pointer;
}

/* =============================================
   Typography
   ============================================= */

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-gray-900);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }
h5 { font-size: 1.125rem; }
h6 { font-size: 1rem; }

@media (min-width: 768px) {
  h1 { font-size: 3.5rem; }
  h2 { font-size: 2.5rem; }
  h3 { font-size: 1.75rem; }
}

p {
  margin-bottom: var(--spacing-md);
}

/* =============================================
   Layout
   ============================================= */

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

.container--narrow {
  max-width: var(--container-narrow);
}

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

.section--gray {
  background-color: var(--color-gray-50);
}

/* =============================================
   Header & Navigation
   ============================================= */

.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-gray-100);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.header__logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-gray-900);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.header__logo:hover {
  color: var(--color-gray-900);
}

.header__logo-icon {
  width: 32px;
  height: 32px;
  background: var(--gradient-health);
  border-radius: var(--radius-md);
}

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

.hero__logo {
  height: 80px;
  width: auto;
  margin-bottom: var(--spacing-lg);
}

@media (min-width: 768px) {
  .hero__logo {
    height: 100px;
  }
}

.nav {
  display: none;
}

.nav__list {
  display: flex;
  list-style: none;
  gap: var(--spacing-xl);
}

.nav__link {
  color: var(--color-gray-600);
  font-weight: 500;
  font-size: 0.9375rem;
  transition: color var(--transition-fast);
}

.nav__link:hover {
  color: var(--color-gray-900);
}

.nav__actions {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.lang-switch {
  font-size: 0.875rem;
  color: var(--color-gray-500);
  background: none;
  border: 1px solid var(--color-gray-200);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.lang-switch:hover {
  border-color: var(--color-gray-300);
  color: var(--color-gray-700);
}

/* Mobile Menu */
.menu-toggle {
  display: flex;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  padding: var(--spacing-sm);
}

.menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--color-gray-700);
  transition: all var(--transition-fast);
}

@media (min-width: 768px) {
  .nav {
    display: block;
  }

  .menu-toggle {
    display: none;
  }
}

/* Mobile Nav */
.mobile-nav {
  display: none;
  position: fixed;
  top: 64px;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: var(--color-white);
  padding: var(--spacing-xl);
  z-index: 999;
}

.mobile-nav.is-open {
  display: block;
}

.mobile-nav__list {
  list-style: none;
}

.mobile-nav__link {
  display: block;
  padding: var(--spacing-md) 0;
  font-size: 1.125rem;
  color: var(--color-gray-700);
  border-bottom: 1px solid var(--color-gray-100);
}

/* =============================================
   Buttons
   ============================================= */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: 0.75rem 1.5rem;
  font-size: 1rem;
  font-weight: 600;
  border-radius: var(--radius-lg);
  border: none;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
}

.btn--primary {
  background-color: #1e40af;
  color: var(--color-white);
  box-shadow: var(--shadow-md);
}

a.btn--primary,
a.btn--primary:visited {
  color: var(--color-white);
}

.btn--primary:hover {
  background-color: #1e3a8a;
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  color: var(--color-white);
}

.btn--primary:disabled {
  background-color: var(--color-gray-300);
  color: var(--color-gray-500);
  box-shadow: none;
  cursor: not-allowed;
  transform: none;
}

.btn--primary:disabled:hover {
  background-color: var(--color-gray-300);
  transform: none;
  box-shadow: none;
}

.btn--secondary {
  background-color: var(--color-white);
  color: var(--color-gray-700);
  border: 1px solid var(--color-gray-200);
}

.btn--secondary:hover {
  background-color: var(--color-gray-50);
  border-color: var(--color-gray-300);
  color: var(--color-gray-900);
}

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

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

.btn--large {
  padding: 1rem 2rem;
  font-size: 1.125rem;
}

.btn--small {
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
}

.btn--block {
  width: 100%;
}

/* =============================================
   Cards
   ============================================= */

.card {
  background-color: var(--color-white);
  border-radius: var(--radius-xl);
  padding: var(--spacing-xl);
  box-shadow: var(--shadow-md);
  transition: all var(--transition-base);
}

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

.card__icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gradient-health);
  border-radius: var(--radius-lg);
  margin-bottom: var(--spacing-lg);
  font-size: 1.5rem;
}

.card__title {
  font-size: 1.25rem;
  margin-bottom: var(--spacing-sm);
}

.card__text {
  color: var(--color-gray-600);
  margin-bottom: 0;
}

/* =============================================
   Hero Section
   ============================================= */

.hero {
  padding-top: calc(64px + var(--spacing-3xl));
  padding-bottom: var(--spacing-3xl);
  min-height: 100vh;
  display: flex;
  align-items: center;
}

.hero--dark {
  background: var(--gradient-hero);
  color: var(--color-white);
}

.hero--dark h1,
.hero--dark h2,
.hero--dark h3 {
  color: var(--color-white);
}

.hero--dark p {
  color: var(--color-gray-300);
}

.hero__inner {
  display: grid;
  gap: var(--spacing-2xl);
  align-items: center;
}

@media (min-width: 768px) {
  .hero__inner {
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
  }
}

.hero__content {
  text-align: center;
}

@media (min-width: 768px) {
  .hero__content {
    text-align: left;
  }
}

.hero__badge {
  display: inline-block;
  padding: var(--spacing-xs) var(--spacing-md);
  background-color: rgba(16, 185, 129, 0.1);
  color: var(--color-primary);
  font-size: 0.875rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  margin-bottom: var(--spacing-lg);
}

.hero--dark .hero__badge {
  background-color: rgba(16, 185, 129, 0.2);
}

.hero__title {
  margin-bottom: var(--spacing-lg);
}

.hero__subtitle {
  font-size: 1.25rem;
  margin-bottom: var(--spacing-xl);
}

.hero__actions {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

@media (min-width: 480px) {
  .hero__actions {
    flex-direction: row;
    justify-content: center;
  }
}

@media (min-width: 768px) {
  .hero__actions {
    justify-content: flex-start;
  }
}

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

.hero__mockup {
  max-width: 300px;
  filter: drop-shadow(0 25px 50px rgba(0, 0, 0, 0.25));
}

/* =============================================
   Features Grid
   ============================================= */

.features {
  display: grid;
  gap: var(--spacing-xl);
}

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

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

.section__header {
  text-align: center;
  max-width: 100%;
  margin: 0 auto var(--spacing-3xl);
}

.section__title {
  margin-bottom: var(--spacing-md);
}

.section__subtitle {
  color: var(--color-gray-600);
  font-size: 1.125rem;
}

/* =============================================
   App Cards (Portfolio)
   ============================================= */

.app-card {
  display: flex;
  flex-direction: column;
  background-color: var(--color-white);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-base);
}

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

.app-card__image {
  position: relative;
  padding-top: 56.25%;
  background: var(--gradient-health);
}

.app-card__image img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.app-card__body {
  padding: var(--spacing-xl);
  flex-grow: 1;
  display: flex;
  flex-direction: column;
}

.app-card__category {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-primary);
  margin-bottom: var(--spacing-sm);
}

.app-card__title {
  font-size: 1.5rem;
  margin-bottom: var(--spacing-sm);
}

.app-card__desc {
  color: var(--color-gray-600);
  flex-grow: 1;
}

.app-card__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: var(--spacing-lg);
  padding-top: var(--spacing-lg);
  border-top: 1px solid var(--color-gray-100);
}

.app-card__status {
  font-size: 0.875rem;
  color: var(--color-gray-500);
}

.app-card__status--live {
  color: var(--color-primary);
}

/* =============================================
   Pricing
   ============================================= */

.pricing {
  display: grid;
  gap: var(--spacing-xl);
}

@media (min-width: 768px) {
  .pricing {
    grid-template-columns: repeat(2, 1fr);
    max-width: 800px;
    margin: 0 auto;
  }
}

.pricing-card {
  background-color: var(--color-white);
  border-radius: var(--radius-xl);
  padding: var(--spacing-2xl);
  box-shadow: var(--shadow-md);
  text-align: center;
  position: relative;
}

.pricing-card--featured {
  border: 2px solid var(--color-primary);
}

.pricing-card__badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--gradient-health);
  color: var(--color-white);
  padding: var(--spacing-xs) var(--spacing-lg);
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
}

.pricing-card__name {
  font-size: 1.25rem;
  margin-bottom: var(--spacing-md);
}

.pricing-card__price {
  font-size: 3rem;
  font-weight: 700;
  color: var(--color-gray-900);
}

.pricing-card__period {
  color: var(--color-gray-500);
  font-size: 1rem;
  font-weight: 400;
}

.pricing-card__desc {
  color: var(--color-gray-600);
  margin: var(--spacing-lg) 0;
}

.pricing-card__features {
  list-style: none;
  text-align: left;
  margin-bottom: var(--spacing-xl);
}

.pricing-card__features li {
  padding: var(--spacing-sm) 0;
  color: var(--color-gray-600);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.pricing-card__features li::before {
  content: "✓";
  color: var(--color-primary);
  font-weight: 700;
}

/* =============================================
   Footer
   ============================================= */

.footer {
  background-color: var(--color-gray-900);
  color: var(--color-gray-400);
  padding: var(--spacing-3xl) 0 var(--spacing-xl);
}

.footer__inner {
  display: grid;
  gap: var(--spacing-2xl);
}

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

.footer__brand {
  margin-bottom: var(--spacing-lg);
}

.footer__logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-white);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-md);
}

.footer__logo-img {
  height: 32px;
  width: auto;
}

.footer__desc {
  color: var(--color-gray-400);
  font-size: 0.9375rem;
  margin-bottom: 0;
}

.footer__title {
  font-size: 0.875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-white);
  margin-bottom: var(--spacing-lg);
}

.footer__links {
  list-style: none;
}

.footer__links li {
  margin-bottom: var(--spacing-sm);
}

.footer__links a {
  color: var(--color-gray-400);
  font-size: 0.9375rem;
  transition: color var(--transition-fast);
}

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

.footer__social {
  display: flex;
  gap: var(--spacing-md);
}

.footer__social a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background-color: var(--color-gray-800);
  border-radius: var(--radius-md);
  color: var(--color-gray-400);
  transition: all var(--transition-fast);
}

.footer__social a:hover {
  background-color: var(--color-primary);
  color: var(--color-white);
}

.footer__bottom {
  margin-top: var(--spacing-2xl);
  padding-top: var(--spacing-xl);
  border-top: 1px solid var(--color-gray-800);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  align-items: center;
  text-align: center;
}

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

.footer__copy {
  font-size: 0.875rem;
  margin-bottom: 0;
}

/* =============================================
   Forms
   ============================================= */

.form-group {
  margin-bottom: var(--spacing-lg);
}

.form-label {
  display: block;
  font-weight: 500;
  color: var(--color-gray-700);
  margin-bottom: var(--spacing-sm);
}

.form-label--required::after {
  content: " *";
  color: #ef4444;
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: 0.75rem 1rem;
  font-size: 1rem;
  font-family: inherit;
  color: var(--color-gray-900);
  background-color: var(--color-white);
  border: 1px solid var(--color-gray-300);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.1);
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--color-gray-400);
}

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

.form-help {
  font-size: 0.875rem;
  color: var(--color-gray-500);
  margin-top: var(--spacing-xs);
}

.form-error {
  font-size: 0.875rem;
  color: #ef4444;
  margin-top: var(--spacing-xs);
}

.form-checkbox {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  cursor: pointer;
  font-size: 0.9375rem;
  color: var(--color-gray-700);
}

.form-checkbox input[type="checkbox"] {
  width: 18px;
  height: 18px;
  cursor: pointer;
  accent-color: #1e40af;
}

.form-checkbox span a {
  color: #1e40af;
  text-decoration: underline;
}

.form-checkbox span a:hover {
  color: #1e3a8a;
}

/* =============================================
   Legal Pages
   ============================================= */

.legal-page {
  padding-top: calc(64px + var(--spacing-2xl));
  padding-bottom: var(--spacing-3xl);
}

.legal-content {
  max-width: var(--container-narrow);
  margin: 0 auto;
}

.legal-content h1 {
  margin-bottom: var(--spacing-xl);
}

.legal-content h2 {
  font-size: 1.5rem;
  margin-top: var(--spacing-2xl);
  margin-bottom: var(--spacing-md);
}

.legal-content h3 {
  font-size: 1.25rem;
  margin-top: var(--spacing-xl);
  margin-bottom: var(--spacing-sm);
}

.legal-content p,
.legal-content ul,
.legal-content ol {
  margin-bottom: var(--spacing-md);
  color: var(--color-gray-600);
}

.legal-content ul,
.legal-content ol {
  padding-left: var(--spacing-xl);
}

.legal-content li {
  margin-bottom: var(--spacing-sm);
}

.legal-meta {
  color: var(--color-gray-500);
  font-size: 0.875rem;
  margin-bottom: var(--spacing-xl);
  padding-bottom: var(--spacing-xl);
  border-bottom: 1px solid var(--color-gray-200);
}

/* =============================================
   Contact Page
   ============================================= */

.contact-page {
  padding-top: calc(64px + var(--spacing-2xl));
  padding-bottom: var(--spacing-3xl);
}

.contact-grid {
  display: grid;
  gap: var(--spacing-2xl);
}

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

.contact-info {
  background-color: var(--color-gray-50);
  border-radius: var(--radius-xl);
  padding: var(--spacing-2xl);
}

.contact-info__item {
  display: flex;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-xl);
}

.contact-info__item:last-child {
  margin-bottom: 0;
}

.contact-info__icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: #1e40af;
  border-radius: var(--radius-lg);
  color: var(--color-white);
  font-size: 1.25rem;
  flex-shrink: 0;
}

.contact-info__content h3 {
  font-size: 1rem;
  margin-bottom: var(--spacing-xs);
}

.contact-info__content p {
  color: var(--color-gray-600);
  margin-bottom: 0;
}

.contact-form {
  background-color: var(--color-white);
  border-radius: var(--radius-xl);
  padding: var(--spacing-2xl);
  box-shadow: var(--shadow-md);
}

/* =============================================
   Alert / Notice
   ============================================= */

.alert {
  padding: var(--spacing-md) var(--spacing-lg);
  border-radius: var(--radius-md);
  margin-bottom: var(--spacing-lg);
}

.alert--success {
  background-color: #dcfce7;
  color: #166534;
  border: 1px solid #86efac;
}

.alert--error {
  background-color: #fef2f2;
  color: #991b1b;
  border: 1px solid #fca5a5;
}

.alert--info {
  background-color: #eff6ff;
  color: #1e40af;
  border: 1px solid #93c5fd;
}

/* =============================================
   Utilities
   ============================================= */

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

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: var(--spacing-md); }
.mt-2 { margin-top: var(--spacing-xl); }
.mt-3 { margin-top: var(--spacing-2xl); }

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--spacing-md); }
.mb-2 { margin-bottom: var(--spacing-xl); }
.mb-3 { margin-bottom: var(--spacing-2xl); }

.hidden { display: none; }
.visible { display: block; }

@media (max-width: 767px) {
  .hide-mobile { display: none; }
}

@media (min-width: 768px) {
  .hide-desktop { display: none; }
}

/* =============================================
   Animations
   ============================================= */

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.animate-fade-in {
  animation: fadeIn 0.5s ease forwards;
}

.animate-slide-up {
  animation: slideUp 0.5s ease forwards;
}

/* Loading spinner */
.spinner {
  width: 24px;
  height: 24px;
  border: 3px solid var(--color-gray-200);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}