/* MONTAGE TALLINN v56.1 — Complete UX/UI Redesign
   Premium service website with polished interactions
   Reference: Linear.app, Notion, Superhuman
   Mobile-first, vanilla CSS, no frameworks */

:root {
  /* === COLOR PALETTE === */
  --color-green-dark:    #064E3B;    /* Primary dark green */
  --color-green-medium:  #047857;    /* Secondary green */
  --color-green-main:    #10B981;    /* Primary action green */
  --color-green-light:   #34D399;    /* Accent lighter green */
  --color-green-pale:    #ECFDF5;    /* Pale green background */
  --color-green-lime:    #A7F06B;    /* Bright accent */

  --color-bg-dark:       #0a1f17;    /* Footer dark */
  --color-bg-cream:      #F7F2EB;    /* Cream section bg */
  --color-bg-white:      #FFFFFF;

  --color-gray-50:       #F9FAFB;
  --color-gray-100:      #F3F4F6;
  --color-gray-200:      #E5E7EB;
  --color-gray-300:      #D1D5DB;
  --color-gray-400:      #9CA3AF;
  --color-gray-600:      #4B5563;
  --color-gray-900:      #111827;

  --color-text-primary:  #1F2937;
  --color-text-secondary: #6B7280;
  --color-text-light:    #9CA3AF;
  --color-white:         #FFFFFF;

  /* === SHADOWS === */
  --shadow-xs:           0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-sm:           0 2px 4px 0 rgba(0, 0, 0, 0.06);
  --shadow-card:         0 2px 16px rgba(0, 0, 0, 0.08);
  --shadow-hover:        0 8px 24px rgba(0, 0, 0, 0.12);
  --shadow-lg:           0 10px 28px rgba(0, 0, 0, 0.15);
  --shadow-xl:           0 20px 40px rgba(0, 0, 0, 0.2);
  --shadow-green:        0 4px 20px rgba(6, 78, 59, 0.15);

  /* === RADIUS === */
  --radius-sm:           8px;
  --radius-md:           12px;
  --radius-lg:           16px;
  --radius-xl:           20px;
  --radius-2xl:          24px;

  /* === SPACING === */
  --space-1:             4px;
  --space-2:             8px;
  --space-3:             12px;
  --space-4:             16px;
  --space-6:             24px;
  --space-8:             32px;
  --space-10:            40px;
  --space-12:            48px;
  --space-16:            64px;
  --space-20:            80px;
  --space-24:            96px;

  /* === TYPOGRAPHY === */
  --font-family-base:    -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-size-xs:        12px;
  --font-size-sm:        14px;
  --font-size-base:      16px;
  --font-size-md:        18px;
  --font-size-lg:        20px;
  --font-size-xl:        24px;
  --font-size-2xl:       30px;
  --font-size-3xl:       36px;
  --font-size-4xl:       48px;
  --font-size-5xl:       60px;

  --font-weight-normal:  400;
  --font-weight-medium:  500;
  --font-weight-semibold: 600;
  --font-weight-bold:    700;
  --font-weight-extrabold: 800;

  --line-height-tight:   1.2;
  --line-height-snug:    1.35;
  --line-height-normal:  1.65;
  --line-height-relaxed: 1.8;

  /* === LAYOUT === */
  --container-max:       1200px;
  --container-pad:       20px;
  --section-padding:     80px;

  /* === TRANSITIONS === */
  --transition-fast:     100ms ease;
  --transition-base:     150ms ease;
  --transition-smooth:   200ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow:     300ms ease;

  /* === Z-INDEX === */
  --z-header:            40;
  --z-modal:             100;
}

/* === GLOBAL STYLES === */

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  padding: 0;
  font-family: var(--font-family-base);
  font-size: var(--font-size-base);
  line-height: var(--line-height-normal);
  color: var(--color-text-primary);
  background-color: var(--color-white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* === TYPOGRAPHY === */

h1, h2, h3, h4, h5, h6 {
  margin: 0;
  font-weight: var(--font-weight-bold);
  line-height: var(--line-height-tight);
}

h1 {
  font-size: var(--font-size-5xl);
  font-weight: 900;
}

h2 {
  font-size: var(--font-size-4xl);
  font-weight: var(--font-weight-extrabold);
  margin-bottom: var(--space-6);
}

h3 {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
}

h4 {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-bold);
}

p {
  margin: 0 0 var(--space-4) 0;
  color: var(--color-text-secondary);
}

a {
  color: var(--color-green-main);
  text-decoration: none;
  transition: color var(--transition-base);
}

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

ul, ol {
  margin: 0;
  padding: 0;
}

li {
  list-style: none;
}

/* === CONTAINER === */

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

/* === BUTTONS === */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 14px 28px;
  min-height: 48px;
  border: none;
  border-radius: var(--radius-md);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  cursor: pointer;
  transition: all var(--transition-smooth);
  text-decoration: none;
  white-space: nowrap;
  user-select: none;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-green-main) 0%, var(--color-green-dark) 100%);
  color: var(--color-white);
  box-shadow: var(--shadow-green);
  font-weight: var(--font-weight-bold);
}

.btn-primary:hover {
  box-shadow: var(--shadow-lg);
  background: linear-gradient(135deg, var(--color-green-dark) 0%, #033b2c 100%);
}

.btn-secondary {
  background-color: var(--color-white);
  color: var(--color-green-main);
  border: 2px solid var(--color-green-main);
  box-shadow: var(--shadow-sm);
}

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

.btn-sm {
  padding: 10px 20px;
  font-size: var(--font-size-sm);
  min-height: auto;
}

.btn-full {
  width: 100%;
}

/* === HERO SECTION === */

.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-20) var(--container-pad);
  background: linear-gradient(135deg, var(--color-green-dark) 0%, #0a3d2f 50%, var(--color-green-dark) 100%);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -10%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(167, 240, 107, 0.15) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-12);
  align-items: center;
  max-width: var(--container-max);
  margin: 0 auto;
}

@media (min-width: 1024px) {
  .hero-content {
    grid-template-columns: 1fr 1fr;
  }
}

.hero-text h1 {
  font-size: clamp(48px, 8vw, 72px);
  color: var(--color-white);
  margin-bottom: var(--space-4);
  line-height: var(--line-height-snug);
}

.hero-text h2 {
  font-size: 24px;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.95);
  margin: 0 0 var(--space-6) 0;
}

.hero-eyebrow {
  display: inline-block;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--color-green-lime);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--space-4);
}

.hero-lead {
  font-size: var(--font-size-lg);
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: var(--space-8);
  max-width: 500px;
  line-height: var(--line-height-relaxed);
}

.hero-ctas {
  display: flex;
  gap: var(--space-4);
  flex-wrap: wrap;
  margin-bottom: var(--space-12);
}

.hero-trust {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-6);
  padding-top: var(--space-8);
  border-top: 1px solid rgba(255, 255, 255, 0.2);
}

.trust-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  color: rgba(255, 255, 255, 0.9);
  font-size: var(--font-size-sm);
}

.trust-item::before {
  content: '✓';
  color: var(--color-green-lime);
  font-weight: bold;
  font-size: 20px;
}

.hero-image {
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-xl);
  aspect-ratio: 4/3;
}

.hero-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* === SECTIONS === */

.section {
  padding: var(--section-padding) var(--container-pad);
}

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

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

.section.dark {
  background-color: var(--color-green-dark);
  color: var(--color-white);
}

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

.section.dark p {
  color: rgba(255, 255, 255, 0.9);
}

.section-head {
  max-width: 680px;
  margin-bottom: var(--space-12);
}

.section-head.center {
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

.section-eyebrow {
  display: block;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-bold);
  color: var(--color-green-main);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--space-3);
}

/* === CARDS === */

.card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  border: 1px solid var(--color-gray-200);
  border-left: 4px solid var(--color-green-main);
  box-shadow: var(--shadow-card);
  transition: all var(--transition-smooth);
}

.card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-3px);
  border-left-color: var(--color-green-dark);
}

.card-icon {
  font-size: 36px;
  margin-bottom: var(--space-4);
  display: block;
}

.card h4 {
  margin-bottom: var(--space-3);
  color: var(--color-text-primary);
}

.card p {
  margin: 0;
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

.card ul {
  list-style: none;
  padding: 0;
  margin: var(--space-4) 0;
}

.card li {
  padding: var(--space-2) 0;
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
  display: flex;
  align-items: flex-start;
  gap: var(--space-2);
}

.card li::before {
  content: '✓';
  color: var(--color-green-main);
  font-weight: bold;
  flex-shrink: 0;
}

/* === GRIDS === */

.grid-2 {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-8);
}

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

.grid-3 {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-8);
}

@media (min-width: 768px) {
  .grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }
}

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

.grid-4 {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-8);
}

@media (min-width: 768px) {
  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
}

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

/* === STEPS === */

.steps {
  position: relative;
}

@media (min-width: 1024px) {
  .steps::before {
    content: '';
    position: absolute;
    top: 30px;
    left: 0;
    right: 0;
    height: 2px;
    background: repeating-linear-gradient(
      90deg,
      var(--color-green-main),
      var(--color-green-main) 8px,
      transparent 8px,
      transparent 16px
    );
  }
}

.step {
  position: relative;
  text-align: center;
}

.step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-green-main) 0%, var(--color-green-dark) 100%);
  color: white;
  font-size: var(--font-size-3xl);
  font-weight: 900;
  margin-bottom: var(--space-6);
  margin-left: auto;
  margin-right: auto;
}

.step h4 {
  margin-bottom: var(--space-3);
}

.step p {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

/* === PRICING TABLE === */

table {
  width: 100%;
  border-collapse: collapse;
  margin: var(--space-8) 0;
}

thead {
  background-color: var(--color-gray-50);
  border-bottom: 2px solid var(--color-gray-200);
}

th {
  padding: var(--space-4) var(--space-6);
  text-align: left;
  font-weight: var(--font-weight-bold);
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

td {
  padding: var(--space-5) var(--space-6);
  border-bottom: 1px solid var(--color-gray-200);
}

tbody tr:hover {
  background-color: var(--color-gray-50);
}

tbody tr:last-child td {
  border-bottom: none;
}

td:last-child {
  text-align: right;
  font-weight: var(--font-weight-bold);
  color: var(--color-green-main);
  font-size: var(--font-size-md);
}

/* === PRICING GRID === */

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-6);
  margin: var(--space-12) 0;
}

.pricing-card {
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  text-align: center;
  transition: all var(--transition-smooth);
}

.pricing-card:hover,
.pricing-card.highlighted {
  background: rgba(255, 255, 255, 0.15);
  border-color: var(--color-green-lime);
  transform: translateY(-4px);
}

.pricing-card h4 {
  color: var(--color-white);
  margin-bottom: var(--space-3);
}

.pricing-card .price {
  font-size: var(--font-size-3xl);
  font-weight: 900;
  color: var(--color-green-lime);
}

/* === HEADER / NAV === */

header {
  position: sticky;
  top: 0;
  z-index: var(--z-header);
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-gray-200);
  padding: var(--space-4) var(--container-pad);
}

.header-content {
  max-width: var(--container-max);
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-8);
}

.logo {
  font-size: var(--font-size-xl);
  font-weight: 900;
  color: var(--color-green-dark);
  text-decoration: none;
}

nav {
  display: flex;
  gap: var(--space-8);
  align-items: center;
  flex: 1;
}

@media (max-width: 768px) {
  nav {
    display: none;
  }
}

nav a {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-secondary);
  transition: color var(--transition-base);
}

nav a:hover {
  color: var(--color-green-main);
}

/* === FOOTER === */

footer {
  background: var(--color-bg-dark);
  color: var(--color-white);
  padding: var(--space-20) var(--container-pad) var(--space-12);
}

.footer-content {
  max-width: var(--container-max);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-12);
}

@media (min-width: 768px) {
  .footer-content {
    grid-template-columns: repeat(3, 1fr);
  }
}

.footer-section h4 {
  color: var(--color-white);
  margin-bottom: var(--space-6);
  font-size: var(--font-size-md);
}

.footer-section p {
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: var(--space-6);
  font-size: var(--font-size-sm);
}

.footer-section ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-section li {
  margin-bottom: var(--space-3);
}

.footer-section a {
  color: rgba(255, 255, 255, 0.8);
  font-size: var(--font-size-sm);
  transition: color var(--transition-base);
}

.footer-section a:hover {
  color: var(--color-green-lime);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: var(--space-8);
  margin-top: var(--space-8);
  text-align: center;
  font-size: var(--font-size-sm);
  color: rgba(255, 255, 255, 0.6);
}

/* === DETAILS/ACCORDION === */

details {
  margin: var(--space-4) 0;
  padding: var(--space-5) var(--space-6);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-lg);
  background: var(--color-white);
  transition: all var(--transition-smooth);
}

details:hover {
  box-shadow: var(--shadow-sm);
  border-color: var(--color-green-light);
}

details[open] {
  box-shadow: var(--shadow-card);
  border-color: var(--color-green-main);
  background: var(--color-gray-50);
}

summary {
  cursor: pointer;
  font-weight: var(--font-weight-semibold);
  user-select: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: var(--color-text-primary);
  transition: color var(--transition-base);
}

summary:hover {
  color: var(--color-green-main);
}

details[open] summary {
  color: var(--color-green-dark);
  margin-bottom: var(--space-4);
}

summary::marker {
  content: '';
}

summary::after {
  content: '+';
  display: inline-block;
  font-size: 20px;
  width: 24px;
  text-align: center;
  transition: transform var(--transition-base);
  color: var(--color-green-main);
}

details[open] summary::after {
  content: '−';
  transform: rotate(0deg);
}

/* === FORMS === */

input[type="text"],
input[type="email"],
input[type="tel"],
textarea,
select {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  border: 1px solid var(--color-gray-300);
  border-radius: var(--radius-md);
  font-family: var(--font-family-base);
  font-size: var(--font-size-base);
  transition: all var(--transition-base);
}

input[type="text"]:focus,
input[type="email"]:focus,
input[type="tel"]:focus,
textarea:focus,
select:focus {
  outline: none;
  border-color: var(--color-green-main);
  box-shadow: 0 0 0 3px rgba(4, 120, 87, 0.1);
}

textarea {
  resize: vertical;
  min-height: 120px;
}

/* === RESPONSIVE === */

@media (max-width: 768px) {
  :root {
    --section-padding: 48px;
  }

  h1 {
    font-size: var(--font-size-4xl);
  }

  h2 {
    font-size: var(--font-size-3xl);
  }

  .section-head {
    margin-bottom: var(--space-8);
  }

  .hero-ctas {
    flex-direction: column;
  }

  .btn {
    width: 100%;
  }

  .hero-trust {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 480px) {
  :root {
    --section-padding: 32px;
    --container-pad: 16px;
  }

  h1 {
    font-size: var(--font-size-3xl);
  }

  h2 {
    font-size: var(--font-size-2xl);
  }

  .hero-trust {
    grid-template-columns: 1fr;
  }
}

/* === UTILITY CLASSES === */

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

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

.mb-4 {
  margin-bottom: var(--space-4);
}

.mb-6 {
  margin-bottom: var(--space-6);
}

.mb-8 {
  margin-bottom: var(--space-8);
}

.mt-8 {
  margin-top: var(--space-8);
}

.mt-12 {
  margin-top: var(--space-12);
}

/* === PRINT STYLES === */

@media print {
  .no-print {
    display: none !important;
  }
}