/* ===========================================
   Tafread Website - CSS Variables & Styles
   Based on theme.ts color system
   =========================================== */

:root {
  /* Primary Colors */
  --color-primary: #0d3319;
  --color-primary-light: #1a5c2e;
  --color-primary-dark: #081f0f;
  --color-secondary: #2d7a45;
  --color-accent: #4a9960;

  /* Neutral Colors */
  --color-text: #11181c;
  --color-text-light: #6b7280;
  --color-text-muted: #9ca3af;
  --color-background: #ffffff;
  --color-card: #f3f4f6;
  --color-border: #e5e7eb;

  /* Status Colors */
  --color-success: #10b981;
  --color-warning: #f59e0b;
  --color-error: #ef4444;
  --color-info: #3b82f6;

  /* Ebee Solutions Branding */
  --color-ebee-bg: #0f172a;
  --color-ebee-accent: #22d3ee;

  /* 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);

  /* Fonts */
  --font-sans:
    system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica,
    Arial, sans-serif;
  --font-serif: Georgia, "Times New Roman", serif;

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-normal: 300ms ease;
  --transition-slow: 500ms ease;

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

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

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

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

body {
  font-family: var(--font-sans);
  color: var(--color-text);
  background-color: var(--color-background);
  line-height: 1.6;
  -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-fast);
}

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

ul,
ol {
  list-style: none;
}

button {
  cursor: pointer;
  font-family: inherit;
  border: none;
  background: none;
}

input,
textarea,
select {
  font-family: inherit;
  font-size: inherit;
}

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

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

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

h2 {
  font-size: clamp(1.5rem, 4vw, 2.5rem);
}

h3 {
  font-size: clamp(1.25rem, 3vw, 1.75rem);
}

h4 {
  font-size: 1.25rem;
}

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

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

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

/* ===========================================
   Layout & Container
   =========================================== */

.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--hero {
  padding: var(--spacing-3xl) 0 var(--spacing-2xl);
  min-height: 80vh;
  display: flex;
  align-items: center;
}

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

/* ===========================================
   Navigation
   =========================================== */

.navbar {
  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-border);
  padding: var(--spacing-md) 0;
  transition: box-shadow var(--transition-normal);
}

.navbar--scrolled {
  box-shadow: var(--shadow-md);
}

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

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

.navbar__logo img {
  height: 40px;
  width: auto;
}

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

.navbar__link {
  font-weight: 500;
  color: var(--color-text);
  position: relative;
  padding: var(--spacing-xs) 0;
}

.navbar__link::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-primary);
  transition: width var(--transition-fast);
}

.navbar__link:hover::after,
.navbar__link--active::after {
  width: 100%;
}

.navbar__link:hover {
  color: var(--color-primary);
}

.navbar__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: var(--spacing-sm);
}

.navbar__toggle span {
  width: 24px;
  height: 2px;
  background-color: var(--color-text);
  transition:
    transform var(--transition-fast),
    opacity var(--transition-fast);
}

.navbar__toggle--active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

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

.navbar__toggle--active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile Navigation */
@media (max-width: 768px) {
  .navbar__toggle {
    display: flex;
  }

  .navbar__menu {
    position: fixed;
    top: 73px;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--color-background);
    flex-direction: column;
    justify-content: flex-start;
    padding: var(--spacing-xl);
    gap: var(--spacing-lg);
    transform: translateX(100%);
    transition: transform var(--transition-normal);
  }

  .navbar__menu--open {
    transform: translateX(0);
  }

  .navbar__link {
    font-size: 1.25rem;
  }
}

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-md) var(--spacing-xl);
  font-weight: 600;
  font-size: 1rem;
  border-radius: var(--radius-xl);
  transition: all var(--transition-fast);
}

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

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

.btn--secondary {
  background-color: var(--color-card);
  color: var(--color-text);
  border: 1px solid var(--color-border);
}

.btn--secondary:hover {
  background-color: var(--color-border);
}

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

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

.btn--large {
  padding: var(--spacing-lg) var(--spacing-2xl);
  font-size: 1.125rem;
}

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

.btn--icon {
  padding: var(--spacing-md);
}

.btn-group {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-md);
}

/* Store Buttons */
.store-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-md);
  padding: var(--spacing-md) var(--spacing-xl);
  background-color: var(--color-text);
  color: white;
  border-radius: var(--radius-lg);
  transition: all var(--transition-fast);
}

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

.store-btn__icon {
  font-size: 2rem;
}

.store-btn__text {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.store-btn__text small {
  font-size: 0.75rem;
  opacity: 0.8;
}

.store-btn__text span {
  font-size: 1.125rem;
  font-weight: 600;
}

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

.card {
  background-color: var(--color-background);
  border-radius: var(--radius-xl);
  padding: var(--spacing-xl);
  box-shadow: var(--shadow-md);
  transition:
    transform var(--transition-fast),
    box-shadow var(--transition-fast);
}

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

.card--flat {
  box-shadow: none;
  border: 1px solid var(--color-border);
}

.card--flat:hover {
  transform: none;
  box-shadow: none;
  border-color: var(--color-primary);
}

.card__icon {
  width: 60px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-primary);
  color: white;
  border-radius: var(--radius-lg);
  font-size: 1.5rem;
  margin-bottom: var(--spacing-lg);
}

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

.card__text {
  color: var(--color-text-light);
  margin-bottom: 0;
}

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

.hero {
  text-align: center;
  margin-top: 80px;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-lg);
  background-color: var(--color-card);
  color: var(--color-primary);
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  font-weight: 500;
  margin-bottom: var(--spacing-xl);
}

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

.hero__title span {
  color: var(--color-primary);
}

.hero__subtitle {
  font-size: 1.25rem;
  color: var(--color-text-light);
  max-width: 600px;
  margin: 0 auto var(--spacing-2xl);
}

.hero__image {
  max-width: 300px;
  margin: var(--spacing-2xl) auto 0;
  border-radius: var(--radius-2xl);
  box-shadow: var(--shadow-xl);
}

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

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-xl);
}

/* ===========================================
   About Section
   =========================================== */

.about-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-3xl);
  align-items: center;
}

@media (max-width: 768px) {
  .about-content {
    grid-template-columns: 1fr;
    text-align: center;
  }
}

.about-image {
  border-radius: var(--radius-2xl);
  box-shadow: var(--shadow-lg);
}

/* ===========================================
   Contact Form
   =========================================== */

.form {
  max-width: 600px;
  margin: 0 auto;
}

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

.form__label {
  display: block;
  font-weight: 500;
  margin-bottom: var(--spacing-sm);
  color: var(--color-text);
}

.form__input,
.form__textarea,
.form__select {
  width: 100%;
  padding: var(--spacing-md);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background-color: var(--color-background);
  color: var(--color-text);
  transition:
    border-color var(--transition-fast),
    box-shadow 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(13, 51, 25, 0.1);
}

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

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

.form__success {
  text-align: center;
  padding: var(--spacing-2xl);
  background-color: rgba(16, 185, 129, 0.1);
  border-radius: var(--radius-xl);
  color: var(--color-success);
}

/* Honeypot - Hidden from users */
.form__honeypot {
  position: absolute;
  left: -9999px;
  opacity: 0;
  pointer-events: none;
  height: 0;
  overflow: hidden;
}

/* ===========================================
   Donation Section
   =========================================== */

.donation-options {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-xl);
  margin-top: var(--spacing-2xl);
}

.donation-card {
  text-align: center;
  padding: var(--spacing-2xl);
}

.donation-card__icon {
  width: 80px;
  height: 80px;
  margin: 0 auto var(--spacing-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-primary);
  color: white;
  border-radius: var(--radius-full);
  font-size: 2rem;
}

.donation-card__title {
  margin-bottom: var(--spacing-sm);
}

.donation-card__description {
  color: var(--color-text-light);
  margin-bottom: var(--spacing-lg);
}

.amount-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-lg);
}

.amount-btn {
  padding: var(--spacing-md);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  font-weight: 600;
  background-color: var(--color-background);
  transition: all var(--transition-fast);
  font-size: 0.9rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.amount-btn:hover,
.amount-btn--active {
  border-color: var(--color-primary);
  background-color: var(--color-primary);
  color: white;
}

/* Responsive amount grid */
@media (max-width: 768px) {
  .amount-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .amount-btn {
    padding: var(--spacing-sm) var(--spacing-xs);
    font-size: 0.85rem;
  }
}

@media (max-width: 480px) {
  .amount-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-xs);
  }
  
  .amount-btn {
    padding: var(--spacing-sm) var(--spacing-xs);
    font-size: 0.8rem;
  }
}

.custom-amount {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-lg);
}

.custom-amount__symbol {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--color-text-light);
}

.custom-amount input {
  flex: 1;
}

/* Donation Email Input */
.donation-email {
  margin-bottom: var(--spacing-lg);
}

.donation-email input {
  margin-bottom: var(--spacing-sm);
}

.form__help {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  font-style: italic;
}

/* Form Input Error State */
.form__input--error {
  border-color: var(--color-error) !important;
  box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.1) !important;
}

.form__input--error:focus {
  box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.2) !important;
}

/* ===========================================
   Powered By Section
   =========================================== */

.powered-by {
  background-color: var(--color-ebee-bg);
  padding: var(--spacing-2xl);
  border-radius: var(--radius-2xl);
  text-align: center;
  color: white;
}

.powered-by__logo {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
}

.powered-by__icon {
  width: 60px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: rgba(34, 211, 238, 0.2);
  border-radius: var(--radius-lg);
  color: var(--color-ebee-accent);
  font-size: 1.75rem;
}

.powered-by__title {
  color: white;
  font-size: 1.5rem;
}

.powered-by__subtitle {
  color: rgba(255, 255, 255, 0.7);
  font-size: 1rem;
  margin-bottom: var(--spacing-lg);
}

.powered-by__text {
  max-width: 600px;
  margin: 0 auto var(--spacing-xl);
  color: rgba(255, 255, 255, 0.8);
}

.powered-by__btn {
  background-color: var(--color-ebee-accent);
  color: var(--color-ebee-bg);
}

.powered-by__btn:hover {
  background-color: white;
  color: var(--color-ebee-bg);
}

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

.footer {
  background-color: var(--color-primary-dark);
  color: white;
  padding: var(--spacing-3xl) 0 var(--spacing-xl);
}

.footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--spacing-2xl);
  margin-bottom: var(--spacing-2xl);
}

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

@media (max-width: 480px) {
  .footer__grid {
    grid-template-columns: 1fr;
    text-align: center;
  }
}

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

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

.footer__logo img {
  height: 36px;
  width: auto;
  filter: brightness(0) invert(1);
}

.footer__description {
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.875rem;
}

.footer__title {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: var(--spacing-lg);
  color: white;
}

.footer__links {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.footer__link {
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.875rem;
  transition: color var(--transition-fast);
}

.footer__link:hover {
  color: white;
}

.footer__bottom {
  padding-top: var(--spacing-xl);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--spacing-md);
}

@media (max-width: 480px) {
  .footer__bottom {
    flex-direction: column;
    text-align: center;
  }
}

.footer__copyright {
  color: rgba(255, 255, 255, 0.5);
  font-size: 0.875rem;
}

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

.footer__social-link {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-full);
  color: white;
  transition: background-color var(--transition-fast);
}

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

/* ===========================================
   Legal Pages (Privacy, Terms)
   =========================================== */

.legal {
  padding-top: 120px;
  padding-bottom: var(--spacing-3xl);
}

.legal__header {
  margin-bottom: var(--spacing-2xl);
  padding-bottom: var(--spacing-xl);
  border-bottom: 1px solid var(--color-border);
}

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

.legal__updated {
  color: var(--color-text-muted);
  font-size: 0.875rem;
}

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

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

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

.legal__content ul {
  list-style: disc;
  padding-left: var(--spacing-xl);
  margin-bottom: var(--spacing-md);
  color: var(--color-text-light);
}

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

/* ===========================================
   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;
}

.mt-1 {
  margin-top: var(--spacing-sm);
}
.mt-2 {
  margin-top: var(--spacing-md);
}
.mt-3 {
  margin-top: var(--spacing-lg);
}
.mt-4 {
  margin-top: var(--spacing-xl);
}
.mt-5 {
  margin-top: var(--spacing-2xl);
}

.mb-1 {
  margin-bottom: var(--spacing-sm);
}
.mb-2 {
  margin-bottom: var(--spacing-md);
}
.mb-3 {
  margin-bottom: var(--spacing-lg);
}
.mb-4 {
  margin-bottom: var(--spacing-xl);
}
.mb-5 {
  margin-bottom: var(--spacing-2xl);
}

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

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

.animate-fade-in {
  animation: fadeIn 0.6s ease forwards;
}

.animate-delay-1 {
  animation-delay: 0.1s;
}
.animate-delay-2 {
  animation-delay: 0.2s;
}
.animate-delay-3 {
  animation-delay: 0.3s;
}
.animate-delay-4 {
  animation-delay: 0.4s;
}

/* ===========================================
   Toast Notifications
   =========================================== */

.toast-container {
  position: fixed;
  bottom: var(--spacing-xl);
  right: var(--spacing-xl);
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.toast {
  padding: var(--spacing-md) var(--spacing-xl);
  background-color: var(--color-text);
  color: white;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  animation: slideIn 0.3s ease;
}

.toast--success {
  background-color: var(--color-success);
}

.toast--error {
  background-color: var(--color-error);
}

@keyframes slideIn {
  from {
    opacity: 0;
    transform: translateX(100px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* ===========================================
   Loading Spinner
   =========================================== */

.spinner {
  width: 24px;
  height: 24px;
  border: 3px solid rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  border-top-color: white;
  animation: spin 0.8s linear infinite;
}

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