/* ============================================
   Zenify Print — Styles
   ============================================ */

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

:root {
  --color-primary: #1B3A5C;
  --color-primary-light: #2A5A8C;
  --color-accent: #D4952B;
  --color-accent-hover: #C07E1A;
  --color-bg: #FAFBFC;
  --color-bg-alt: #F0F3F7;
  --color-bg-dark: #0F1F33;
  --color-text: #1A1A2E;
  --color-text-light: #5A6478;
  --color-border: #E2E6EC;
  --color-white: #FFFFFF;
  --color-success: #28a745;
  --color-error: #dc3545;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.08);
  --shadow-lg: 0 8px 32px rgba(0,0,0,0.10);
  --shadow-xl: 0 16px 48px rgba(0,0,0,0.12);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 24px;
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --max-width: 1120px;
  --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
  font-family: var(--font);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.container { max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }

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

/* --- Typography --- */
h1, h2, h3, h4 { line-height: 1.2; font-weight: 700; }

.section-label {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 12px;
}

.section-title {
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  color: var(--color-primary);
  margin-bottom: 16px;
}

.section-desc {
  font-size: 1.1rem;
  color: var(--color-text-light);
  max-width: 560px;
  margin: 0 auto 48px;
}

.gradient-text {
  background: linear-gradient(135deg, var(--color-accent) 0%, #E8AE4A 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font);
  font-weight: 600;
  font-size: 1rem;
  padding: 14px 28px;
  border-radius: var(--radius-sm);
  border: none;
  cursor: pointer;
  text-decoration: none;
  transition: all var(--transition);
  white-space: nowrap;
}

.btn--primary {
  background: var(--color-accent);
  color: var(--color-white);
  box-shadow: 0 2px 8px rgba(212, 149, 43, 0.3);
}
.btn--primary:hover {
  background: var(--color-accent-hover);
  box-shadow: 0 4px 16px rgba(212, 149, 43, 0.4);
  transform: translateY(-1px);
}
.btn--primary:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

.btn--large { padding: 18px 36px; font-size: 1.1rem; }
.btn--full { width: 100%; }

.btn--loading {
  pointer-events: none;
  position: relative;
  color: transparent !important;
}
.btn--loading::after {
  content: '';
  position: absolute;
  width: 20px; height: 20px;
  border: 2px solid rgba(255,255,255,0.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* --- Nav --- */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(250, 251, 252, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
}

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

.nav__logo {
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 8px;
}

.logo-text {
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--color-primary);
  letter-spacing: -0.02em;
}

.logo-text span {
  font-weight: 400;
  color: var(--color-accent);
}

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

.nav__links a {
  text-decoration: none;
  color: var(--color-text-light);
  font-size: 0.92rem;
  font-weight: 500;
  transition: color var(--transition);
}
.nav__links a:hover { color: var(--color-primary); }

.nav__mobile-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}
.nav__mobile-toggle span {
  width: 24px;
  height: 2px;
  background: var(--color-primary);
  border-radius: 2px;
  transition: all var(--transition);
}
.nav__mobile-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.nav__mobile-toggle.active span:nth-child(2) { opacity: 0; }
.nav__mobile-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* --- Hero --- */
.hero {
  padding: 160px 0 80px;
  text-align: center;
  background: linear-gradient(180deg, var(--color-bg) 0%, var(--color-bg-alt) 100%);
}

.hero__badge {
  display: inline-block;
  padding: 8px 20px;
  background: rgba(27, 58, 92, 0.06);
  border: 1px solid var(--color-border);
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 32px;
}

.hero__title {
  font-size: clamp(2.4rem, 6vw, 3.6rem);
  font-weight: 800;
  color: var(--color-primary);
  margin-bottom: 24px;
  letter-spacing: -0.03em;
}

.hero__subtitle {
  font-size: clamp(1rem, 2.5vw, 1.2rem);
  color: var(--color-text-light);
  max-width: 580px;
  margin: 0 auto 40px;
  line-height: 1.7;
}

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

/* --- Sections --- */
section {
  padding: 100px 0;
}

section:nth-child(even) {
  background: var(--color-bg-alt);
}

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

/* --- Steps (How it works) --- */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  margin-top: 48px;
}

.step-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 36px 28px;
  text-align: center;
  transition: all var(--transition);
}
.step-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.step-card__number {
  width: 48px; height: 48px;
  border-radius: 50%;
  background: var(--color-accent);
  color: var(--color-white);
  font-weight: 700;
  font-size: 1.2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
}

.step-card__icon {
  font-size: 2.4rem;
  margin-bottom: 16px;
}

.step-card__title {
  font-size: 1.15rem;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.step-card__desc {
  font-size: 0.95rem;
  color: var(--color-text-light);
  line-height: 1.6;
}

/* --- Product Selector --- */
.product-selector {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 24px;
}

.product-card {
  position: relative;
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 28px 20px;
  text-align: center;
  cursor: pointer;
  transition: all var(--transition);
  background: var(--color-white);
}

.product-card:hover {
  border-color: var(--color-primary-light);
  box-shadow: var(--shadow-sm);
}

.product-card.selected {
  border-color: var(--color-accent);
  background: rgba(212, 149, 43, 0.04);
  box-shadow: 0 2px 8px rgba(212, 149, 43, 0.15);
}

.product-card input[type="radio"] {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.product-card__icon {
  font-size: 2rem;
  margin-bottom: 12px;
}

.product-card__title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 4px;
}

.product-card__desc {
  font-size: 0.82rem;
  color: var(--color-text-light);
  margin-bottom: 12px;
  line-height: 1.4;
}

.product-card__price {
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--color-accent);
}

.product-card__price small {
  font-size: 0.75rem;
  font-weight: 400;
  color: var(--color-text-light);
}

/* --- Sender Address (conditional) --- */
.sender-address {
  display: none;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 20px;
  margin-bottom: 24px;
  background: var(--color-bg-alt);
}

.sender-address.visible {
  display: block;
}

.sender-address__title {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 16px;
}

/* --- Order Form --- */
.order {
  background: var(--color-white);
}

.order-card {
  max-width: 640px;
  margin: 0 auto;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 48px;
  box-shadow: var(--shadow-md);
}

/* Step Indicator */
.step-indicator {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-bottom: 40px;
}

.step-indicator__item {
  display: flex;
  align-items: center;
  gap: 8px;
}

.step-indicator__dot {
  width: 32px; height: 32px;
  border-radius: 50%;
  background: var(--color-bg-alt);
  color: var(--color-text-light);
  font-weight: 600;
  font-size: 0.85rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition);
}

.step-indicator__dot.active {
  background: var(--color-accent);
  color: var(--color-white);
}

.step-indicator__dot.done {
  background: var(--color-success);
  color: var(--color-white);
}

.step-indicator__line {
  width: 40px;
  height: 2px;
  background: var(--color-border);
  transition: background var(--transition);
}

.step-indicator__line.active {
  background: var(--color-accent);
}

/* Form Steps */
.form-step {
  display: none;
}
.form-step.active {
  display: block;
}

.form-step__title {
  font-size: 1.3rem;
  color: var(--color-primary);
  margin-bottom: 24px;
  text-align: center;
}

/* Upload Zone */
.upload-zone {
  border: 2px dashed var(--color-border);
  border-radius: var(--radius-md);
  padding: 48px 24px;
  text-align: center;
  cursor: pointer;
  transition: all var(--transition);
  background: var(--color-bg);
}

.upload-zone:hover,
.upload-zone.dragover {
  border-color: var(--color-accent);
  background: rgba(212, 149, 43, 0.04);
}

.upload-zone__icon {
  font-size: 3rem;
  margin-bottom: 16px;
  color: var(--color-text-light);
}

.upload-zone__text {
  font-size: 1rem;
  color: var(--color-text-light);
  margin-bottom: 8px;
}

.upload-zone__hint {
  font-size: 0.85rem;
  color: var(--color-text-light);
  opacity: 0.7;
}

.upload-zone input[type="file"] {
  display: none;
}

/* File Info */
.file-info {
  display: none;
  align-items: center;
  gap: 16px;
  padding: 16px 20px;
  background: var(--color-bg-alt);
  border-radius: var(--radius-sm);
  margin-top: 16px;
}

.file-info.visible {
  display: flex;
}

.file-info__icon {
  font-size: 2rem;
  flex-shrink: 0;
}

.file-info__details {
  flex: 1;
  min-width: 0;
}

.file-info__name {
  font-weight: 600;
  color: var(--color-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.file-info__meta {
  font-size: 0.85rem;
  color: var(--color-text-light);
}

.file-info__remove {
  background: none;
  border: none;
  font-size: 1.2rem;
  cursor: pointer;
  color: var(--color-text-light);
  padding: 4px 8px;
  border-radius: var(--radius-sm);
  transition: all var(--transition);
}
.file-info__remove:hover {
  background: var(--color-error);
  color: var(--color-white);
}

/* Form Fields */
.form-group {
  margin-bottom: 20px;
}

.form-label {
  display: block;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 6px;
}

.form-input {
  width: 100%;
  padding: 14px 20px;
  border: 2px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 1rem;
  font-family: var(--font);
  background: var(--color-white);
  transition: border-color var(--transition);
}
.form-input:focus {
  outline: none;
  border-color: var(--color-accent);
}
.form-input.error {
  border-color: var(--color-error);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 16px;
}

.form-error {
  font-size: 0.82rem;
  color: var(--color-error);
  margin-top: 4px;
  display: none;
}
.form-error.visible {
  display: block;
}

/* Print Options */
.print-options {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 24px;
}

.print-option {
  position: relative;
}

.print-option input[type="radio"] {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.print-option__label {
  display: block;
  padding: 20px;
  border: 2px solid var(--color-border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  text-align: center;
  transition: all var(--transition);
}

.print-option input:checked + .print-option__label {
  border-color: var(--color-accent);
  background: rgba(212, 149, 43, 0.04);
}

.print-option__icon {
  font-size: 1.5rem;
  margin-bottom: 8px;
}

.print-option__title {
  font-weight: 600;
  color: var(--color-primary);
  font-size: 0.95rem;
}

.print-option__desc {
  font-size: 0.8rem;
  color: var(--color-text-light);
  margin-top: 4px;
}

/* Order Summary */
.order-summary {
  background: var(--color-bg-alt);
  border-radius: var(--radius-sm);
  padding: 24px;
  margin-bottom: 24px;
}

.order-summary__row {
  display: flex;
  justify-content: space-between;
  padding: 8px 0;
  font-size: 0.95rem;
  color: var(--color-text-light);
}

.order-summary__row:last-child {
  border-top: 1px solid var(--color-border);
  margin-top: 8px;
  padding-top: 16px;
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--color-primary);
}

/* Form Navigation */
.form-nav {
  display: flex;
  justify-content: space-between;
  margin-top: 32px;
}

.btn--back {
  background: transparent;
  color: var(--color-text-light);
  border: 1px solid var(--color-border);
}
.btn--back:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

/* Checkbox */
.checkbox-label {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  cursor: pointer;
  font-size: 0.88rem;
  color: var(--color-text-light);
  line-height: 1.5;
}

.checkbox-label input[type="checkbox"] {
  margin-top: 3px;
  flex-shrink: 0;
  width: 18px;
  height: 18px;
  accent-color: var(--color-accent);
  cursor: pointer;
}

.checkbox-label a {
  color: var(--color-accent);
  text-decoration: underline;
}
.checkbox-label a:hover {
  color: var(--color-accent-hover);
}

/* Global error message */
.global-error {
  background: rgba(220, 53, 69, 0.08);
  border: 1px solid var(--color-error);
  border-radius: var(--radius-sm);
  padding: 12px 20px;
  color: var(--color-error);
  font-size: 0.9rem;
  margin-bottom: 20px;
  display: none;
}
.global-error.visible {
  display: block;
}

/* --- Pricing Section --- */
.pricing-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  max-width: 800px;
  margin: 0 auto;
}

.pricing-card {
  background: var(--color-white);
  border: 2px solid var(--color-accent);
  border-radius: var(--radius-lg);
  padding: 48px;
  text-align: center;
  box-shadow: var(--shadow-lg);
}

.pricing-card__price {
  font-size: 3rem;
  font-weight: 800;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.pricing-card__price small {
  font-size: 1rem;
  font-weight: 400;
  color: var(--color-text-light);
}

.pricing-card__subtitle {
  font-size: 1rem;
  color: var(--color-text-light);
  margin-bottom: 32px;
}

.pricing-card__features {
  list-style: none;
  text-align: left;
}

.pricing-card__features li {
  padding: 10px 0;
  border-bottom: 1px solid var(--color-border);
  font-size: 0.95rem;
  color: var(--color-text);
  display: flex;
  align-items: center;
  gap: 12px;
}

.pricing-card__features li:last-child {
  border-bottom: none;
}

.pricing-card__features li::before {
  content: '\2713';
  color: var(--color-success);
  font-weight: 700;
  font-size: 1.1rem;
  flex-shrink: 0;
}

/* --- FAQ --- */
.faq-list {
  max-width: 720px;
  margin: 0 auto;
}

.faq__item {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  margin-bottom: 8px;
  overflow: hidden;
  transition: all var(--transition);
}

.faq__item[open] {
  border-color: var(--color-accent);
}

.faq__item summary {
  padding: 20px 24px;
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--color-primary);
  transition: all var(--transition);
}

.faq__item summary::-webkit-details-marker { display: none; }

.faq__item summary::after {
  content: '+';
  font-size: 1.4rem;
  font-weight: 300;
  color: var(--color-accent);
  transition: transform var(--transition);
}

.faq__item[open] summary::after {
  transform: rotate(45deg);
}

.faq__item p {
  padding: 0 24px 20px;
  color: var(--color-text-light);
  line-height: 1.7;
  font-size: 0.95rem;
}

/* --- Footer --- */
.footer {
  background: var(--color-bg-dark);
  color: rgba(255,255,255,0.7);
  padding: 48px 0 32px;
}

.footer__inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 24px;
}

.footer__brand {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--color-white);
}

.footer__brand span {
  font-weight: 400;
  color: var(--color-accent);
}

.footer__links {
  display: flex;
  gap: 24px;
}

.footer__links a {
  color: rgba(255,255,255,0.6);
  text-decoration: none;
  font-size: 0.9rem;
  transition: color var(--transition);
}
.footer__links a:hover {
  color: var(--color-white);
}

.footer__bottom {
  text-align: center;
  margin-top: 32px;
  padding-top: 24px;
  border-top: 1px solid rgba(255,255,255,0.1);
  font-size: 0.85rem;
}

/* --- Reveal Animation --- */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* --- Responsive --- */
@media (max-width: 768px) {
  .nav__links { display: none; }
  .nav__links.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 72px;
    left: 0; right: 0;
    background: var(--color-white);
    padding: 24px;
    gap: 16px;
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-md);
  }
  .nav__mobile-toggle { display: flex; }

  .hero { padding: 120px 0 60px; }
  .hero__title { font-size: clamp(1.8rem, 8vw, 2.8rem); }

  section { padding: 64px 0; }

  .steps-grid { grid-template-columns: 1fr; }

  .order-card { padding: 24px; }

  .form-row { grid-template-columns: 1fr; }

  .product-selector { grid-template-columns: 1fr; }

  .print-options { grid-template-columns: 1fr; }

  .pricing-grid { grid-template-columns: 1fr; }

  .pricing-card { padding: 32px 24px; }

  .footer__inner { flex-direction: column; text-align: center; }
  .footer__links { flex-wrap: wrap; justify-content: center; }

  .step-indicator__line { width: 24px; }
}