/* ==========================================================================
   Windstream Landing Page Styles
   Design: databy.io inspired (dark purple theme)
   ========================================================================== */

/* --------------------------------------------------------------------------
   CSS Variables
   -------------------------------------------------------------------------- */
:root {
    --color-primary: #3A01D2;
    --color-primary-light: #6b4ce6;
    --color-orange: #ef4036;
    --color-orange-hover: #ff5a4f;
    --color-background: #1a1a2e;
    --color-surface: #1e1e32;
    --color-surface-light: #252540;
    --color-text: #ffffff;
    --color-text-muted: #7a7a8c;
    --color-text-secondary: #b0b0c0;
    --color-border: #2d2d45;
    --color-success: #10b981;
    --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    --max-width: 1200px;
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-xxl: 6rem;
    --border-radius: 8px;
    --border-radius-lg: 12px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    font-size: 18px;
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-background);
}

h1, h2, h3 {
    line-height: 1.2;
    font-weight: 700;
}

h1 {
    font-size: 3.5rem;
}

h2 {
    font-size: 2.75rem;
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-md);
}

h3 {
    font-size: 1.5rem;
}

a {
    color: var(--color-primary-light);
    text-decoration: none;
    transition: color 0.2s;
}

a:hover {
    color: var(--color-text);
}

/* --------------------------------------------------------------------------
   Layout
   -------------------------------------------------------------------------- */
.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    position: relative;
    z-index: 1;
}

section {
    padding: var(--spacing-xxl) 0;
}

.section-subtitle {
    color: var(--color-text-secondary);
    font-size: 1.375rem;
    margin-bottom: var(--spacing-xl);
}

/* --------------------------------------------------------------------------
   CTA Button (solid orange like databy.io)
   -------------------------------------------------------------------------- */
.cta-button {
    display: inline-block;
    padding: 1.25rem 2.5rem;
    background: var(--color-orange);
    color: white;
    font-weight: 600;
    font-size: 1.125rem;
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: background 0.2s, transform 0.2s;
    text-decoration: none;
}

.cta-button:hover {
    background: var(--color-orange-hover);
    transform: translateY(-2px);
    text-decoration: none;
    color: white;
}

.cta-button:active {
    transform: translateY(0);
}

/* --------------------------------------------------------------------------
   Navigation
   -------------------------------------------------------------------------- */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md) calc((100% - var(--max-width)) / 2 + var(--spacing-lg));
    background: rgba(26, 26, 46, 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

@media (max-width: 1200px) {
    .nav {
        padding: var(--spacing-md) var(--spacing-lg);
    }
}

.nav-logo {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--color-text);
}

/* Language Switcher */
.lang-switcher {
    display: flex;
    gap: 0.5rem;
    margin-left: auto;
}

.lang-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 26px;
    padding: 0;
    background: transparent;
    border: 2px solid transparent;
    border-radius: 4px;
    cursor: pointer;
    opacity: 0.6;
    transition: opacity 0.2s, border-color 0.2s, transform 0.2s;
}

.lang-btn:hover {
    opacity: 1;
    transform: scale(1.05);
}

.lang-btn.active {
    opacity: 1;
    border-color: var(--color-orange);
}

.flag-icon {
    width: 28px;
    height: 20px;
    border-radius: 2px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
}

/* --------------------------------------------------------------------------
   Hero Section
   -------------------------------------------------------------------------- */
.hero {
    background: var(--color-background);
    color: var(--color-text);
    min-height: 90vh;
    display: flex;
    flex-direction: column;
    position: relative;
    padding-top: 80px; /* Account for fixed nav */
}

/* Purple triangle - rotated */
.hero::before {
    content: '';
    position: absolute;
    top: 5%;
    right: -100px;
    width: 0;
    height: 0;
    border-style: solid;
    border-width: 0 200px 350px 200px;
    border-color: transparent transparent var(--color-primary) transparent;
    opacity: 0.7;
    pointer-events: none;
    transform: rotate(-25deg);
}

/* Orange triangle - rotated differently */
.hero::after {
    content: '';
    position: absolute;
    top: 20%;
    right: 50px;
    width: 0;
    height: 0;
    border-style: solid;
    border-width: 0 120px 220px 120px;
    border-color: transparent transparent var(--color-orange) transparent;
    opacity: 0.85;
    pointer-events: none;
    transform: rotate(15deg);
}

.hero-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: var(--spacing-xl) var(--spacing-lg);
    max-width: 750px;
    margin-left: auto;
    margin-right: auto;
    position: relative;
    z-index: 1;
}

.hero h1 {
    margin-bottom: var(--spacing-lg);
    font-size: 4.5rem;
    font-weight: 700;
    color: var(--color-text);
    line-height: 1.1;
}

.hero-tagline {
    font-size: 1.5rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-xl);
    max-width: 600px;
    line-height: 1.7;
}

.hero .cta-button {
    align-self: flex-start;
}

/* --------------------------------------------------------------------------
   Features Section (numbered list like databy.io)
   -------------------------------------------------------------------------- */
.features {
    background-color: var(--color-background);
    border-top: 1px solid var(--color-border);
    position: relative;
}

/* Purple triangle - rotated */
.features::before {
    content: '';
    position: absolute;
    top: 10%;
    left: -80px;
    width: 0;
    height: 0;
    border-style: solid;
    border-width: 0 160px 280px 160px;
    border-color: transparent transparent var(--color-primary) transparent;
    opacity: 0.5;
    pointer-events: none;
    transform: rotate(35deg);
}

.features h2 {
    margin-bottom: var(--spacing-xl);
}

.features-intro {
    font-size: 1.75rem;
    color: var(--color-text-secondary);
    max-width: 750px;
    margin-bottom: var(--spacing-xxl);
    line-height: 1.6;
}

.advantages-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
}

.advantage-card {
    background: var(--color-surface);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius-lg);
    border-left: 3px solid var(--color-orange);
    transition: transform 0.2s, box-shadow 0.2s;
}

.advantage-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
}

.advantage-number {
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-orange);
    display: block;
    margin-bottom: var(--spacing-sm);
}

.advantage-card h3 {
    color: var(--color-text);
    font-weight: 600;
    font-size: 1.75rem;
    margin-bottom: var(--spacing-sm);
}

.advantage-stat {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-orange);
    margin-bottom: var(--spacing-sm);
}

.advantage-desc {
    color: var(--color-text-muted);
    font-size: 1.25rem;
    line-height: 1.7;
}

/* --------------------------------------------------------------------------
   Calculator Section
   -------------------------------------------------------------------------- */
.calculator-section {
    background: var(--color-surface);
    position: relative;
}

/* Orange triangle - rotated */
.calculator-section::before {
    content: '';
    position: absolute;
    bottom: 5%;
    right: -50px;
    width: 0;
    height: 0;
    border-style: solid;
    border-width: 0 140px 250px 140px;
    border-color: transparent transparent var(--color-orange) transparent;
    opacity: 0.5;
    pointer-events: none;
    transform: rotate(-40deg);
}

.calculator-section h2 {
    color: var(--color-text-muted);
}

.calculator-section .section-subtitle {
    color: var(--color-text-secondary);
}

/* Product Switcher (above calculator) */
.product-switcher {
    display: flex;
    justify-content: center;
    margin: 0 auto var(--spacing-xl);
}

.product-switcher .product-btn {
    min-width: 200px;
    border-radius: 0;
    margin-left: -2px;
}

.product-switcher .product-btn:first-child {
    border-radius: var(--border-radius) 0 0 var(--border-radius);
    margin-left: 0;
}

.product-switcher .product-btn:last-child {
    border-radius: 0 var(--border-radius) var(--border-radius) 0;
}

.product-switcher .product-btn.active {
    z-index: 1;
}

.calculator {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
    max-width: 950px;
    margin: 0 auto;
}

.calculator-inputs {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.input-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.input-group label {
    font-weight: 500;
    font-size: 1.125rem;
    color: var(--color-text);
}

.input-hint {
    font-weight: 400;
    color: var(--color-text-muted);
    font-size: 1rem;
}

.help-link {
    font-weight: 400;
    font-size: 1rem;
    color: var(--color-primary-light);
}

/* Slider */
.slider-container {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.slider-container input[type="range"] {
    flex: 1;
    height: 8px;
    border-radius: 4px;
    background: var(--color-border);
    appearance: none;
    cursor: pointer;
}

.slider-container input[type="range"]::-webkit-slider-thumb {
    appearance: none;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: var(--color-orange);
    cursor: pointer;
    transition: transform 0.2s;
}

.slider-container input[type="range"]::-webkit-slider-thumb:hover {
    transform: scale(1.15);
}

.slider-container input[type="range"]::-moz-range-thumb {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: var(--color-orange);
    cursor: pointer;
    border: none;
}

.slider-value {
    min-width: 120px;
    text-align: right;
    font-weight: 600;
    font-size: 1.125rem;
    color: var(--color-text);
}

.slider-labels {
    display: flex;
    justify-content: space-between;
    font-size: 0.875rem;
    color: var(--color-text-muted);
}

/* Number inputs */
.input-group input[type="number"] {
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    font-size: 1.125rem;
    width: 100%;
    max-width: 220px;
    transition: border-color 0.2s;
    background: var(--color-background);
    color: var(--color-text);
}

.input-group input[type="number"]:focus {
    outline: none;
    border-color: var(--color-primary-light);
}

.input-group input[type="number"]::placeholder {
    color: var(--color-text-muted);
}

/* Toggle */
.toggle-group {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md) 0;
    border-bottom: 1px solid var(--color-border);
}

.toggle {
    position: relative;
    display: inline-block;
    width: 56px;
    height: 30px;
    flex-shrink: 0;
}

.toggle input {
    opacity: 0;
    width: 0;
    height: 0;
}

.toggle-slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--color-border);
    transition: 0.3s;
    border-radius: 30px;
}

.toggle-slider::before {
    position: absolute;
    content: "";
    height: 24px;
    width: 24px;
    left: 3px;
    bottom: 3px;
    background-color: var(--color-text);
    transition: 0.3s;
    border-radius: 50%;
}

.toggle input:checked + .toggle-slider {
    background-color: var(--color-orange);
}

.toggle input:checked + .toggle-slider::before {
    transform: translateX(26px);
}

/* Conditional input (shown when toggle is checked) */
.conditional-input {
    background: var(--color-surface-light);
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
    margin-top: calc(var(--spacing-sm) * -1);
    border-left: 3px solid var(--color-orange);
}

/* Range slider input */
.slider-input {
    width: 100%;
    height: 8px;
    border-radius: 4px;
    background: var(--color-border);
    appearance: none;
    cursor: pointer;
    margin: var(--spacing-sm) 0;
}

.slider-input::-webkit-slider-thumb {
    appearance: none;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: var(--color-orange);
    cursor: pointer;
    transition: transform 0.2s;
}

.slider-input::-webkit-slider-thumb:hover {
    transform: scale(1.15);
}

.slider-input::-moz-range-thumb {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: var(--color-orange);
    cursor: pointer;
    border: none;
}

.slider-value {
    font-weight: 600;
    font-size: 1.125rem;
    color: var(--color-text);
    text-align: center;
}

.slider-value span {
    color: var(--color-orange);
    font-size: 1.5rem;
}

/* Calculator Result */
.calculator-result {
    background: var(--color-background);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-xl);
    text-align: center;
}

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

.price-label {
    display: block;
    color: var(--color-text-muted);
    font-size: 1.125rem;
    margin-bottom: var(--spacing-sm);
}

.price-amount {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 4px;
}

.currency {
    font-size: 2rem;
    font-weight: 600;
    color: var(--color-text-muted);
}

#total-price {
    font-size: 4.5rem;
    font-weight: 700;
    color: var(--color-text);
    line-height: 1;
}

.price-period {
    font-size: 1.25rem;
    color: var(--color-text-muted);
}

.quote-message {
    background: var(--color-orange);
    color: white;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius);
    font-size: 1rem;
    margin-bottom: var(--spacing-md);
}

.price-breakdown {
    border-top: 1px solid var(--color-border);
    padding-top: var(--spacing-md);
    text-align: left;
}

.breakdown-item {
    display: flex;
    justify-content: space-between;
    font-size: 1rem;
    padding: var(--spacing-xs) 0;
    color: var(--color-text-muted);
}

.breakdown-item span:last-child {
    font-weight: 500;
    color: var(--color-text);
}

/* Button Group (for tier and product selection) */
.button-group {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.tier-group {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
}

.tier-btn,
.product-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    padding: var(--spacing-md) var(--spacing-lg);
    background: var(--color-background);
    border: 2px solid var(--color-border);
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: all 0.2s;
    color: var(--color-text-secondary);
    text-align: center;
}

/* Tier buttons - larger and more prominent */
.tier-btn {
    padding: var(--spacing-lg) var(--spacing-md);
    gap: var(--spacing-xs);
}

.tier-btn strong {
    font-size: 1.5rem;
    color: var(--color-text);
}

.tier-btn span {
    font-size: 1rem;
    color: var(--color-text-muted);
}

.product-btn strong {
    font-size: 1.125rem;
    color: var(--color-text);
}

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

.tier-btn:hover,
.product-btn:hover {
    border-color: var(--color-primary-light);
}

.tier-btn.active,
.product-btn.active {
    border-color: var(--color-orange);
    background: rgba(239, 64, 54, 0.1);
}

.tier-btn.active strong,
.product-btn.active strong {
    color: var(--color-orange);
}

.product-btn {
    flex: 1;
    min-width: 200px;
}

/* Help text */
.help-text {
    background: var(--color-surface-light);
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
    font-size: 0.95rem;
}

.help-text p {
    margin: 0;
    color: var(--color-text-muted);
}

.help-text p:first-child {
    color: var(--color-text);
    margin-bottom: var(--spacing-xs);
}

/* Price display updates */
#price-eur {
    font-size: 3.5rem;
    font-weight: 700;
    color: var(--color-text);
    line-height: 1;
}

#price-czk {
    font-size: 2rem;
    font-weight: 600;
    color: var(--color-text-muted);
}

.price-separator {
    font-size: 2rem;
    color: var(--color-text-muted);
    margin: 0 var(--spacing-xs);
}

.price-note {
    font-size: 0.95rem;
    color: var(--color-text-muted);
    margin-top: var(--spacing-sm);
}

.quote-message p {
    margin: var(--spacing-xs) 0 0 0;
    font-size: 0.95rem;
}

/* Selected config display */
.selected-config {
    border-top: 1px solid var(--color-border);
    padding-top: var(--spacing-md);
    margin-top: var(--spacing-md);
    text-align: left;
}

.config-item {
    display: flex;
    gap: var(--spacing-sm);
    padding: var(--spacing-xs) 0;
    font-size: 0.95rem;
}

.config-label {
    color: var(--color-text-muted);
    min-width: 70px;
}

.config-price {
    font-weight: 600;
    color: var(--color-orange);
}

/* --------------------------------------------------------------------------
   Contact Section
   -------------------------------------------------------------------------- */
.contact-section {
    background: var(--color-background);
    border-top: 1px solid var(--color-border);
    position: relative;
}

/* Purple triangle - rotated */
.contact-section::before {
    content: '';
    position: absolute;
    top: 15%;
    left: -60px;
    width: 0;
    height: 0;
    border-style: solid;
    border-width: 0 130px 230px 130px;
    border-color: transparent transparent var(--color-primary) transparent;
    opacity: 0.45;
    pointer-events: none;
    transform: rotate(50deg);
}

.contact-section h2 {
    text-align: center;
    color: var(--color-text-muted);
}

.contact-section .section-subtitle {
    text-align: center;
}

.contact-form {
    max-width: 550px;
    margin: 0 auto;
}

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

.form-group label {
    display: block;
    font-weight: 500;
    margin-bottom: var(--spacing-sm);
    font-size: 1.125rem;
    color: var(--color-text);
}

.required {
    color: var(--color-orange);
}

.form-group input[type="email"],
.form-group input[type="text"] {
    width: 100%;
    padding: var(--spacing-md);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    font-size: 1.125rem;
    transition: border-color 0.2s;
    background: var(--color-surface);
    color: var(--color-text);
}

.form-group input::placeholder {
    color: var(--color-text-muted);
}

.form-group input:focus {
    outline: none;
    border-color: var(--color-primary-light);
}

.config-summary {
    background: var(--color-surface);
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
    font-size: 1rem;
    color: var(--color-text-muted);
    border: 1px solid var(--color-border);
}

.config-summary p {
    margin: var(--spacing-xs) 0;
}

.config-summary strong {
    color: var(--color-text);
}

.contact-form .cta-button {
    width: 100%;
    margin-top: var(--spacing-md);
}

/* Form Success */
.form-success {
    max-width: 550px;
    margin: 0 auto;
    text-align: center;
    padding: var(--spacing-xl);
}

.success-icon {
    width: 80px;
    height: 80px;
    background: var(--color-success);
    color: white;
    font-size: 2.5rem;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-lg);
}

.form-success h3 {
    margin-bottom: var(--spacing-sm);
    color: var(--color-text);
    font-size: 1.75rem;
}

.form-success p {
    color: var(--color-text-secondary);
    font-size: 1.125rem;
}

.link-button {
    background: none;
    border: none;
    color: var(--color-orange);
    font-size: 1rem;
    cursor: pointer;
    text-decoration: underline;
    margin-top: var(--spacing-md);
    padding: 0;
}

.link-button:hover {
    color: var(--color-text);
}

/* --------------------------------------------------------------------------
   Requirements Section
   -------------------------------------------------------------------------- */
.requirements-section {
    background: var(--color-surface);
    position: relative;
}

/* Purple triangle - rotated */
.requirements-section::before {
    content: '';
    position: absolute;
    top: 0;
    right: -80px;
    width: 0;
    height: 0;
    border-style: solid;
    border-width: 0 170px 300px 170px;
    border-color: transparent transparent var(--color-primary) transparent;
    opacity: 0.35;
    pointer-events: none;
    transform: rotate(-60deg);
}

/* Orange triangle - rotated differently */
.requirements-section::after {
    content: '';
    position: absolute;
    bottom: -20px;
    right: 100px;
    width: 0;
    height: 0;
    border-style: solid;
    border-width: 0 100px 180px 100px;
    border-color: transparent transparent var(--color-orange) transparent;
    opacity: 0.6;
    pointer-events: none;
    transform: rotate(20deg);
}

.requirements-section h2 {
    text-align: center;
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-xl);
}

.requirements-list {
    max-width: 650px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 0;
}

.requirement-item {
    display: flex;
    gap: var(--spacing-lg);
    align-items: flex-start;
    padding: var(--spacing-lg) 0;
    border-top: 1px solid var(--color-border);
}

.requirement-item:last-child {
    border-bottom: 1px solid var(--color-border);
}

.requirement-number {
    width: 40px;
    height: 40px;
    color: var(--color-orange);
    font-weight: 700;
    font-size: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.requirement-content h3 {
    margin-bottom: var(--spacing-xs);
    color: var(--color-text);
    font-weight: 500;
    font-size: 1.375rem;
}

.requirement-content p {
    color: var(--color-text-muted);
    font-size: 1.125rem;
}

/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */
.footer {
    background: var(--color-background);
    border-top: 1px solid var(--color-border);
    padding: var(--spacing-xl) 0;
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
}

.footer-logo {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--color-text);
}

.footer p {
    color: var(--color-text-muted);
    font-size: 1rem;
}

.footer-email {
    font-size: 0.875rem;
}

.footer-email a {
    color: var(--color-text-muted);
}

/* --------------------------------------------------------------------------
   reCAPTCHA
   -------------------------------------------------------------------------- */
.recaptcha-disclaimer {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    margin-top: var(--spacing-sm);
    text-align: center;
}

.recaptcha-disclaimer a {
    color: var(--color-text-muted);
    text-decoration: underline;
}

/* Hide the floating reCAPTCHA badge */
.grecaptcha-badge {
    visibility: hidden !important;
}

/* --------------------------------------------------------------------------
   Utility Classes
   -------------------------------------------------------------------------- */
.hidden {
    display: none !important;
}

/* Section label (like "SLOVO ÚVODEM" on databy.io) */
.section-label {
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-orange);
    margin-bottom: var(--spacing-lg);
    display: block;
}

/* --------------------------------------------------------------------------
   Responsive: Tablet (768px+)
   -------------------------------------------------------------------------- */
@media (min-width: 768px) {
    h1 {
        font-size: 4rem;
    }

    h2 {
        font-size: 3rem;
    }

    .hero h1 {
        font-size: 5rem;
    }

    .advantages-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-lg);
    }

    .calculator {
        grid-template-columns: 1fr 1fr;
        align-items: start;
    }

    .calculator-result {
        position: sticky;
        top: var(--spacing-lg);
    }
}

/* --------------------------------------------------------------------------
   Responsive: Desktop (1024px+)
   -------------------------------------------------------------------------- */
@media (min-width: 1024px) {
    h1 {
        font-size: 4.5rem;
    }

    .hero h1 {
        font-size: 5.5rem;
    }

    .hero-tagline {
        font-size: 1.625rem;
    }

    .features-intro {
        font-size: 2rem;
    }
}