/* ============================================
   ÉLYA PRO — Minimalist Landing Page
   Typography: Montserrat
   Style: Clean, Boutique, Elegant
   ============================================ */

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

:root {
    --color-bg: #FFFFFF;
    --color-bg-alt: #F5F5F5;
    --color-text: #1A1A1A;
    --color-text-secondary: #555555;
    --color-text-muted: #888888;
    --color-accent: #2C2C2C;
    --color-border: #E5E5E5;
    --color-footer-bg: #111111;
    --color-footer-text: #E8E8E8;
    --color-footer-muted: #777777;
    --color-banner-bg: #1A1A1A;
    --color-banner-text: #FAFAFA;
    --color-dot: #4ADE80;

    --font-primary: 'Montserrat', sans-serif;
    --font-size-xs: 1rem;
    --font-size-sm: 1.25rem;
    --font-size-base: 1.5rem;
    --font-size-md: 1.8rem;
    --font-size-lg: 2.4rem;
    --font-size-xl: 3.2rem;
    --font-size-2xl: 4.5rem;
    --font-size-hero: clamp(4rem, 12vw, 10rem);

    --spacing-xs: 0.5rem;
    --spacing-sm: 0.75rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2.5rem;
    --spacing-xl: 4rem;
    --spacing-2xl: 6rem;

    --max-width: 1400px;
    --transition: 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-primary);
    font-weight: 300;
    color: var(--color-text);
    background-color: var(--color-bg);
    line-height: 1.8;
    overflow-x: hidden;
}

a {
    color: inherit;
    text-decoration: none;
    transition: opacity var(--transition);
}

a:hover {
    opacity: 0.6;
}

::selection {
    background-color: var(--color-text);
    color: var(--color-bg);
}

/* --- Container --- */
.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* --- Construction Banner --- */
.construction-banner {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: var(--color-banner-bg);
    color: var(--color-banner-text);
    font-size: var(--font-size-xs);
    font-weight: 500;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    text-align: center;
    padding: 0.6rem var(--spacing-md);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    transform: translateY(0);
    transition: transform 0.5s ease;
}

.construction-banner.hidden {
    transform: translateY(-100%);
}

.construction-dot,
.construction-dot-small {
    display: inline-block;
    width: 6px;
    height: 6px;
    background: var(--color-dot);
    border-radius: 50%;
    animation: pulse 2s ease-in-out infinite;
}

.construction-dot-small {
    width: 5px;
    height: 5px;
}

@keyframes pulse {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0.3;
    }
}

.banner-close {
    position: absolute;
    right: var(--spacing-sm);
    background: none;
    border: none;
    color: var(--color-banner-text);
    font-size: 1.2rem;
    cursor: pointer;
    opacity: 0.5;
    transition: opacity var(--transition);
    line-height: 1;
}

.banner-close:hover {
    opacity: 1;
}

/* --- Navigation (Centered) --- */
.nav {
    position: fixed;
    top: 30px;
    left: 0;
    right: 0;
    z-index: 900;
    padding: var(--spacing-sm) 0;
    transition: all 0.5s ease;
}

.nav.scrolled {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--color-border);
    top: 0;
}

.nav.banner-hidden {
    top: 0;
}

.nav-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

/* Centered navigation layout */
.nav-inner--centered {
    justify-content: center;
}

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

.nav-links a {
    font-size: var(--font-size-xs);
    font-weight: 500;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--color-text);
    transition: width var(--transition);
}

.nav-links a:hover {
    opacity: 1;
}

.nav-links a:hover::after {
    width: 100%;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.nav-toggle span {
    display: block;
    width: 22px;
    height: 1.5px;
    background: var(--color-text);
    transition: all 0.3s ease;
}

/* Mobile Menu */
.mobile-menu {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 850;
    background: var(--color-bg);
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-lg);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.4s ease;
}

.mobile-menu.active {
    opacity: 1;
    pointer-events: auto;
}

.mobile-menu a {
    font-size: var(--font-size-lg);
    font-weight: 500;
    letter-spacing: 0.15em;
    text-transform: uppercase;
}

/* --- Hero Section --- */
.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: var(--spacing-2xl) var(--spacing-md);
    position: relative;
}

.hero-content {
    max-width: none;
    text-align: center;
}

.hero-title {
    margin-bottom: var(--spacing-md);
    opacity: 0;
    transform: translateY(25px);
}

.hero-title.animate {
    animation: fadeUp 0.8s ease forwards;
}

.hero-logo-img {
    width: min(1000px, 85vw);
    height: auto;
    display: block;
    margin: 0 auto;
}

.hero-divider {
    width: 60px;
    height: 1px;
    background: var(--color-text);
    margin: 0 auto var(--spacing-md);
    transform: scaleX(0);
}

.hero-divider.animate {
    animation: scaleX 0.8s ease forwards;
}

.hero-welcome {
    font-size: var(--font-size-md);
    font-weight: 300;
    line-height: 1.8;
    color: var(--color-text-secondary);
    margin-bottom: 1.5rem;
    max-width: none;
    white-space: nowrap;
    text-align: center;
    opacity: 0;
    transform: translateY(20px);
}

.hero-welcome.animate {
    animation: fadeUp 0.8s ease forwards;
}

.hero-submessage {
    font-size: var(--font-size-base);
    font-weight: 300;
    font-style: italic;
    line-height: 1.7;
    color: var(--color-text-secondary);
    margin-bottom: 1rem;
    max-width: none;
    white-space: nowrap;
    text-align: center;
    opacity: 0;
    transform: translateY(20px);
}

.hero-submessage.animate {
    animation: fadeUp 0.8s ease forwards;
}

.hero-notice {
    font-size: var(--font-size-sm);
    font-style: italic;
    font-weight: 300;
    color: var(--color-text-muted);
    line-height: 1.8;
    margin-bottom: 1rem;
    white-space: nowrap;
    text-align: center;
    opacity: 0;
    transform: translateY(20px);
}

.hero-notice.animate {
    animation: fadeUp 0.8s ease forwards;
}

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: var(--spacing-lg);
    display: flex;
    flex-direction: column;
    align-items: center;
    opacity: 0;
}

.scroll-indicator.animate {
    animation: fadeUp 0.8s ease forwards;
}

.scroll-line {
    display: block;
    width: 1px;
    height: 50px;
    background: linear-gradient(to bottom, var(--color-text), transparent);
    animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {

    0%,
    100% {
        transform: scaleY(1);
        opacity: 0.5;
    }

    50% {
        transform: scaleY(0.6);
        opacity: 0.2;
    }
}

/* --- Sections Common --- */
.section {
    padding: var(--spacing-xl) 0;
}

.section-label {
    font-size: var(--font-size-xs);
    font-weight: 600;
    letter-spacing: 0.2em;
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-sm);
    opacity: 0;
    transform: translateY(20px);
}

.section-label.animate {
    animation: fadeUp 0.6s ease forwards;
}

.section-title {
    font-size: var(--font-size-xl);
    font-weight: 700;
    letter-spacing: 0.05em;
    margin-bottom: var(--spacing-lg);
    opacity: 0;
    transform: translateY(20px);
}

.section-title.animate {
    animation: fadeUp 0.6s ease forwards;
}

/* --- Introduction / Content Blocks --- */
.section--intro {
    border-top: 1px solid var(--color-border);
}

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

.intro-content {
    max-width: 1000px;
}

.intro-text {
    font-size: var(--font-size-base);
    font-weight: 300;
    line-height: 1.7;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-md);
    opacity: 0;
    transform: translateY(20px);
}

.intro-text.animate {
    animation: fadeUp 0.6s ease forwards;
}

.intro-mission {
    padding-left: var(--spacing-md);
    border-left: 2px solid var(--color-text);
    opacity: 0;
    transform: translateY(20px);
}

.intro-mission.animate {
    animation: fadeUp 0.6s ease forwards;
}

.intro-mission-label {
    display: block;
    font-size: var(--font-size-xs);
    font-weight: 600;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-xs);
}

.intro-mission p {
    font-size: var(--font-size-base);
    font-weight: 300;
    line-height: 2;
    color: var(--color-text-secondary);
}

/* --- Eco Regions (used in Geography) --- */
.eco-regions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
    margin-top: var(--spacing-md);
}

.eco-tag {
    display: inline-block;
    font-size: var(--font-size-xs);
    font-weight: 500;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    padding: 0.5rem 1.2rem;
    border: 1px solid var(--color-border);
    border-radius: 100px;
    color: var(--color-text-secondary);
    transition: all var(--transition);
}

.eco-tag:hover {
    background: var(--color-text);
    color: var(--color-bg);
    border-color: var(--color-text);
}

/* --- Values --- */
.section--valeurs {
    background: var(--color-bg-alt);
}

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

.value-card {
    opacity: 0;
    transform: translateY(30px);
}

.value-card.animate {
    animation: fadeUp 0.7s ease forwards;
}

.value-number {
    display: block;
    font-size: var(--font-size-xs);
    font-weight: 300;
    color: var(--color-text-muted);
    letter-spacing: 0.1em;
    margin-bottom: var(--spacing-sm);
}

.value-title {
    font-size: var(--font-size-lg);
    font-weight: 700;
    letter-spacing: 0.05em;
    margin-bottom: var(--spacing-sm);
}

.value-desc {
    font-size: var(--font-size-base);
    font-weight: 300;
    color: var(--color-text-secondary);
    line-height: 1.8;
}

/* Quote */
.quote {
    max-width: 700px;
    margin: 0 auto;
    text-align: center;
    position: relative;
    padding: var(--spacing-lg) 0;
    border-top: 1px solid var(--color-border);
    opacity: 0;
    transform: translateY(20px);
}

.quote.animate {
    animation: fadeUp 0.6s ease forwards;
}

.quote-mark {
    display: block;
    font-size: 4rem;
    font-weight: 200;
    color: var(--color-text-muted);
    line-height: 1;
    margin-bottom: var(--spacing-sm);
}

.quote p {
    font-size: var(--font-size-md);
    font-weight: 400;
    font-style: italic;
    line-height: 2;
    color: var(--color-text-secondary);
}

/* --- Contact Section --- */
.section--contact {
    border-top: 1px solid var(--color-border);
    background: var(--color-bg);
    padding: var(--spacing-xl) 0 var(--spacing-2xl);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
    align-items: start;
}

.contact-info {
    opacity: 0;
    transform: translateY(20px);
}

.contact-info.animate {
    animation: fadeUp 0.6s ease forwards;
}

.contact-info-title {
    font-size: var(--font-size-lg);
    font-weight: 700;
    letter-spacing: 0.03em;
    margin-bottom: var(--spacing-sm);
    line-height: 1.4;
    color: var(--color-text);
}

.contact-info-desc {
    font-size: var(--font-size-sm);
    font-weight: 300;
    color: var(--color-text-secondary);
    line-height: 1.8;
    margin-bottom: var(--spacing-lg);
}

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

.contact-item-white {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.contact-label-white {
    font-size: var(--font-size-xs);
    font-weight: 500;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--color-text-muted);
}

.contact-link-white {
    font-size: var(--font-size-base);
    font-weight: 600;
    letter-spacing: 0.03em;
    color: var(--color-text);
    transition: opacity var(--transition);
}

.contact-link-white:hover {
    opacity: 0.6;
}

/* --- Contact Form --- */
.contact-form-wrapper {
    opacity: 0;
    transform: translateY(20px);
}

.contact-form-wrapper.animate {
    animation: fadeUp 0.6s ease forwards;
}

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

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
}

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

.form-label {
    font-size: var(--font-size-xs);
    font-weight: 500;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--color-text-muted);
}

.form-label .required {
    color: var(--color-text-muted);
}

.form-input {
    font-family: var(--font-primary);
    font-size: var(--font-size-sm);
    font-weight: 300;
    color: var(--color-text);
    background: transparent;
    border: none;
    border-bottom: 1px solid var(--color-border);
    padding: 0.6rem 0;
    outline: none;
    transition: border-color var(--transition);
    width: 100%;
}

.form-input::placeholder {
    color: var(--color-text-muted);
    font-weight: 200;
}

.form-input:focus {
    border-bottom-color: var(--color-text);
}

.form-input.error {
    border-bottom-color: #c0392b;
}

.form-textarea {
    resize: vertical;
    min-height: 120px;
    line-height: 1.7;
}

/* Submit Button */
.form-submit {
    align-self: flex-start;
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    font-family: var(--font-primary);
    font-size: var(--font-size-xs);
    font-weight: 600;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--color-bg);
    background: var(--color-text);
    border: 1px solid var(--color-text);
    padding: 0.9rem 2.5rem;
    cursor: pointer;
    transition: all var(--transition);
    margin-top: var(--spacing-sm);
}

.form-submit:hover {
    background: transparent;
    color: var(--color-text);
}

.form-submit:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.form-submit:disabled:hover {
    background: var(--color-text);
    color: var(--color-bg);
}

/* Loader Spinner */
.form-submit-loader {
    display: none;
    width: 14px;
    height: 14px;
    border: 2px solid transparent;
    border-top-color: currentColor;
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

.form-submit.loading .form-submit-loader {
    display: inline-block;
}

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

/* Status Messages */
.form-status {
    font-size: var(--font-size-xs);
    font-weight: 400;
    line-height: 1.6;
    padding: 0;
    transition: all 0.3s ease;
}

.form-status:empty {
    display: none;
}

.form-status.success {
    color: #27ae60;
    padding: 0.75rem 0;
}

.form-status.error {
    color: #c0392b;
    padding: 0.75rem 0;
}

/* --- Form Select (Dropdown) --- */
.form-select {
    font-family: var(--font-primary);
    font-size: var(--font-size-xs);
    font-weight: 300;
    color: var(--color-text);
    background: transparent;
    border: none;
    border-bottom: 1px solid var(--color-border);
    padding: 0.6rem 0;
    outline: none;
    transition: border-color var(--transition);
    width: 100%;
    cursor: pointer;
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%23888888' d='M1.41 0L6 4.58 10.59 0 12 1.41l-6 6-6-6z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 4px center;
    background-size: 12px;
    padding-right: 24px;
}

.form-select:focus {
    border-bottom-color: var(--color-text);
}

.form-select.error {
    border-bottom-color: #c0392b;
}

.form-select option {
    font-family: var(--font-primary);
    font-size: 14px;
    font-weight: 300;
    color: var(--color-text);
    background: var(--color-bg);
    padding: 8px;
}

/* --- Form Header & Subheader --- */
.form-header {
    font-size: var(--font-size-lg);
    font-weight: 700;
    letter-spacing: 0.03em;
    color: var(--color-text);
    margin-bottom: var(--spacing-xs);
}

.form-subheader {
    font-size: var(--font-size-xs);
    font-weight: 300;
    color: var(--color-text-secondary);
    line-height: 1.7;
    margin-bottom: var(--spacing-lg);
}

/* --- Calendly CTA --- */
.contact-calendly {
    margin-top: var(--spacing-lg);
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--color-border);
}

.contact-calendly-text {
    font-size: var(--font-size-xs);
    font-weight: 500;
    color: var(--color-text);
    line-height: 1.7;
    margin-bottom: var(--spacing-md);
}

.contact-calendly-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    font-family: var(--font-primary);
    font-size: var(--font-size-xs);
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--color-bg);
    background: var(--color-text);
    border: 1px solid var(--color-text);
    padding: 0.75rem 1.8rem;
    cursor: pointer;
    transition: all var(--transition);
    text-decoration: none;
}

.contact-calendly-btn:hover {
    background: transparent;
    color: var(--color-text);
    opacity: 1;
}

.calendly-icon {
    font-size: 1.1rem;
    line-height: 1;
}

/* --- Contact Footer Note --- */
.contact-footer-note {
    margin-top: var(--spacing-lg);
    font-size: var(--font-size-xs);
    font-weight: 300;
    font-style: italic;
    color: var(--color-text-muted);
    line-height: 1.7;
}

/* --- Privacy Checkbox --- */
.form-checkbox-group {
    margin-top: var(--spacing-xs);
}

.form-checkbox-label {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    cursor: pointer;
    user-select: none;
}

.form-checkbox {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
    pointer-events: none;
}

.form-checkbox-custom {
    display: inline-block;
    width: 18px;
    height: 18px;
    min-width: 18px;
    border: 1px solid var(--color-border);
    background: transparent;
    transition: all var(--transition);
    position: relative;
    flex-shrink: 0;
}

.form-checkbox:checked + .form-checkbox-custom {
    background: var(--color-text);
    border-color: var(--color-text);
}

.form-checkbox:checked + .form-checkbox-custom::after {
    content: '';
    position: absolute;
    top: 2px;
    left: 5px;
    width: 5px;
    height: 9px;
    border: solid var(--color-bg);
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
}

.form-checkbox-custom.error {
    border-color: #c0392b;
}

.form-checkbox-text {
    font-size: var(--font-size-xs);
    font-weight: 400;
    color: var(--color-text-secondary);
    line-height: 1.5;
}

/* --- Footer --- */
.footer {
    background: var(--color-footer-bg);
    color: var(--color-footer-text);
    padding: var(--spacing-xl) 0 var(--spacing-md);
}

.footer-inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
    align-items: start;
}

.footer-message,
.footer-contact {
    opacity: 0;
    transform: translateY(20px);
}

.footer-message.animate,
.footer-contact.animate {
    animation: fadeUp 0.6s ease forwards;
}

.footer-title {
    font-size: var(--font-size-lg);
    font-weight: 700;
    letter-spacing: 0.03em;
    margin-bottom: var(--spacing-sm);
    line-height: 1.4;
}

.footer-desc {
    font-size: var(--font-size-sm);
    font-weight: 300;
    color: var(--color-footer-muted);
    line-height: 1.8;
}

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

.contact-item {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.contact-label {
    font-size: var(--font-size-xs);
    font-weight: 500;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--color-footer-muted);
}

.contact-link {
    font-size: var(--font-size-base);
    font-weight: 600;
    letter-spacing: 0.03em;
    transition: opacity var(--transition);
}

.contact-link:hover {
    opacity: 0.6;
}

.footer-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: var(--spacing-md);
    border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-brand {
    font-weight: 700;
    font-size: var(--font-size-xs);
    letter-spacing: 0.2em;
}

.footer-copy {
    font-size: var(--font-size-xs);
    font-weight: 300;
    color: var(--color-footer-muted);
}

.footer-construction {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: var(--font-size-xs);
    font-weight: 400;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--color-footer-muted);
}

/* --- Animations --- */
@keyframes fadeUp {
    from {
        opacity: 0;
        transform: translateY(25px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes scaleX {
    from {
        transform: scaleX(0);
    }

    to {
        transform: scaleX(1);
    }
}

/* --- Responsive --- */

/* ===== Tablet / Small Desktop (max-width: 1024px) ===== */
@media (max-width: 1024px) {
    :root {
        --font-size-xl: 2.6rem;
        --font-size-2xl: 3.5rem;
        --font-size-lg: 2rem;
        --font-size-md: 1.5rem;
        --font-size-base: 1.3rem;
    }

    .hero-logo-img {
        width: min(700px, 80vw);
    }

    .hero-welcome {
        white-space: normal;
        max-width: 90vw;
    }

    .hero-submessage {
        white-space: normal;
        max-width: 90vw;
    }

    .hero-notice {
        white-space: normal;
    }
}

/* ===== Mobile Landscape / Small Tablet (max-width: 768px) ===== */
@media (max-width: 768px) {
    :root {
        --font-size-xs: 0.85rem;
        --font-size-sm: 1.05rem;
        --font-size-base: 1.1rem;
        --font-size-md: 1.3rem;
        --font-size-lg: 1.7rem;
        --font-size-xl: 2.2rem;
        --font-size-2xl: 2.8rem;
        --spacing-xl: 3rem;
        --spacing-2xl: 4rem;
        --spacing-lg: 2rem;
    }

    /* Construction Banner — smaller text for mobile */
    .construction-banner {
        font-size: 0.7rem;
        letter-spacing: 0.08em;
        padding: 0.5rem var(--spacing-sm);
        gap: 0.5rem;
    }

    .banner-close {
        font-size: 1rem;
    }

    /* Navigation — hamburger menu */
    .nav {
        top: 26px;
    }

    .nav-links {
        display: none;
    }

    .nav-toggle {
        display: flex;
    }

    .nav-inner--centered {
        justify-content: flex-end;
    }

    /* Mobile Menu — fullscreen overlay */
    .mobile-menu {
        display: flex;
    }

    .mobile-menu a {
        font-size: var(--font-size-md);
        letter-spacing: 0.12em;
    }

    /* Hero Section — scale down and allow text wrapping */
    .hero {
        min-height: 100vh;
        min-height: 100dvh;
        padding: var(--spacing-2xl) var(--spacing-md);
    }

    .hero-logo-img {
        width: min(500px, 85vw);
    }

    .hero-welcome {
        font-size: var(--font-size-base);
        white-space: normal;
        max-width: 92vw;
        line-height: 1.7;
        margin-bottom: 1.2rem;
    }

    .hero-submessage {
        font-size: var(--font-size-sm);
        white-space: normal;
        max-width: 92vw;
        line-height: 1.6;
        margin-bottom: 0.8rem;
    }

    .hero-notice {
        font-size: var(--font-size-xs);
        white-space: normal;
        line-height: 1.7;
        margin-bottom: 0.8rem;
    }

    .hero-divider {
        width: 45px;
        margin: 0 auto var(--spacing-sm);
    }

    /* Sections */
    .section {
        padding: var(--spacing-xl) 0;
    }

    .section-title {
        font-size: var(--font-size-xl);
        margin-bottom: var(--spacing-md);
    }

    .intro-content {
        max-width: 100%;
    }

    .intro-text {
        font-size: var(--font-size-base);
        line-height: 1.7;
    }

    .intro-mission p {
        font-size: var(--font-size-base);
        line-height: 1.7;
    }

    /* Eco Regions — tags */
    .eco-regions {
        gap: 0.5rem;
    }

    .eco-tag {
        font-size: 0.8rem;
        padding: 0.4rem 1rem;
    }

    /* Values Grid — single column */
    .values-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }

    .value-title {
        font-size: var(--font-size-lg);
    }

    .value-desc {
        font-size: var(--font-size-base);
    }

    /* Quote */
    .quote {
        padding: var(--spacing-md) 0;
    }

    .quote-mark {
        font-size: 3rem;
    }

    .quote p {
        font-size: var(--font-size-base);
        line-height: 1.8;
    }

    /* Contact Section */
    .contact-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }

    .contact-info-title {
        font-size: var(--font-size-lg);
    }

    .contact-info-desc {
        font-size: var(--font-size-sm);
    }

    .contact-link-white {
        font-size: var(--font-size-sm);
    }

    .form-header {
        font-size: var(--font-size-lg);
    }

    .form-subheader {
        font-size: var(--font-size-xs);
    }

    .contact-calendly-btn {
        font-size: 0.8rem;
        padding: 0.65rem 1.4rem;
    }

    .form-select {
        font-size: var(--font-size-xs);
    }

    /* Footer */
    .footer {
        padding: var(--spacing-lg) 0 var(--spacing-md);
    }

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

    .footer-title {
        font-size: var(--font-size-lg);
    }

    .footer-desc {
        font-size: var(--font-size-sm);
    }

    .contact-link {
        font-size: var(--font-size-sm);
    }

    .footer-bottom {
        flex-direction: column;
        gap: var(--spacing-sm);
        text-align: center;
    }

    /* Scroll Indicator */
    .scroll-line {
        height: 35px;
    }
}

/* ===== Mobile Portrait (max-width: 480px) ===== */
@media (max-width: 480px) {
    :root {
        --font-size-xs: 0.8rem;
        --font-size-sm: 0.95rem;
        --font-size-base: 1rem;
        --font-size-md: 1.15rem;
        --font-size-lg: 1.45rem;
        --font-size-xl: 1.8rem;
        --font-size-2xl: 2.2rem;
        --spacing-xl: 2.5rem;
        --spacing-2xl: 3.5rem;
        --spacing-lg: 1.5rem;
        --spacing-md: 1rem;
    }

    /* Construction Banner — compact */
    .construction-banner {
        font-size: 0.6rem;
        letter-spacing: 0.06em;
        padding: 0.4rem 0.5rem;
    }

    .construction-banner span:not(.construction-dot) {
        max-width: 85%;
        display: inline;
    }

    /* Navigation */
    .nav {
        top: 22px;
    }

    .nav.scrolled {
        padding: var(--spacing-xs) 0;
    }

    /* Hero */
    .hero {
        padding: var(--spacing-2xl) var(--spacing-sm);
    }

    .hero-logo-img {
        width: 90vw;
    }

    .hero-welcome {
        font-size: var(--font-size-base);
        line-height: 1.65;
        max-width: 95vw;
    }

    .hero-submessage {
        font-size: var(--font-size-sm);
        line-height: 1.6;
        max-width: 95vw;
    }

    .hero-notice {
        font-size: 0.8rem;
    }

    .hero-divider {
        width: 35px;
        margin: 0 auto var(--spacing-xs);
    }

    /* Container */
    .container {
        padding: 0 var(--spacing-sm);
    }

    /* Sections */
    .section-label {
        font-size: 0.75rem;
    }

    .section-title {
        font-size: var(--font-size-xl);
        line-height: 1.3;
    }

    .intro-mission {
        padding-left: var(--spacing-sm);
    }

    /* Eco Regions */
    .eco-regions {
        gap: 0.4rem;
    }

    .eco-tag {
        font-size: 0.75rem;
        padding: 0.35rem 0.85rem;
    }

    /* Values */
    .value-card {
        padding-bottom: var(--spacing-sm);
        border-bottom: 1px solid var(--color-border);
    }

    .value-card:last-child {
        border-bottom: none;
        padding-bottom: 0;
    }

    .value-title {
        font-size: var(--font-size-lg);
        margin-bottom: var(--spacing-xs);
    }

    .value-desc {
        font-size: var(--font-size-sm);
        line-height: 1.7;
    }

    /* Quote */
    .quote-mark {
        font-size: 2.5rem;
    }

    .quote p {
        font-size: var(--font-size-sm);
    }

    /* Contact Section */
    .contact-info-title {
        font-size: var(--font-size-lg);
        line-height: 1.35;
    }

    .contact-info-desc {
        font-size: var(--font-size-xs);
    }

    .contact-label-white {
        font-size: 0.75rem;
    }

    .contact-link-white {
        font-size: var(--font-size-base);
        word-break: break-all;
    }

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

    .form-submit {
        width: 100%;
        justify-content: center;
    }

    .form-header {
        font-size: var(--font-size-lg);
        line-height: 1.35;
    }

    .form-subheader {
        font-size: 0.8rem;
    }

    .contact-calendly {
        margin-top: var(--spacing-md);
        padding-top: var(--spacing-md);
    }

    .contact-calendly-text {
        font-size: 0.8rem;
    }

    .contact-calendly-btn {
        font-size: 0.75rem;
        padding: 0.6rem 1.2rem;
    }

    .contact-footer-note {
        font-size: 0.8rem;
        margin-top: var(--spacing-md);
    }

    .form-checkbox-text {
        font-size: 0.8rem;
    }

    .form-select {
        font-size: 0.8rem;
    }

    /* Footer */
    .footer-title {
        font-size: var(--font-size-lg);
        line-height: 1.35;
    }

    .footer-desc {
        font-size: var(--font-size-xs);
    }

    .contact-label {
        font-size: 0.75rem;
    }

    .contact-link {
        font-size: var(--font-size-base);
        word-break: break-all;
    }

    .footer-brand {
        font-size: 0.8rem;
    }

    .footer-copy {
        font-size: 0.75rem;
    }

    .footer-construction {
        font-size: 0.75rem;
    }

    /* Mobile Menu */
    .mobile-menu a {
        font-size: var(--font-size-md);
    }
}

/* ===== Very Small Screens (max-width: 360px) ===== */
@media (max-width: 360px) {
    :root {
        --font-size-xs: 0.75rem;
        --font-size-sm: 0.85rem;
        --font-size-base: 0.95rem;
        --font-size-md: 1.05rem;
        --font-size-lg: 1.3rem;
        --font-size-xl: 1.6rem;
    }

    .hero {
        padding: var(--spacing-xl) 0.5rem;
    }

    .hero-logo-img {
        width: 94vw;
    }

    .container {
        padding: 0 0.75rem;
    }

    .construction-banner {
        font-size: 0.55rem;
    }

    .mobile-menu a {
        font-size: var(--font-size-sm);
        letter-spacing: 0.1em;
    }

    .footer-bottom {
        gap: 0.4rem;
    }

    .eco-tag {
        font-size: 0.7rem;
        padding: 0.3rem 0.7rem;
    }
}