/* ═══════════════════════════════════════════════════════════
   SILVERLIE HOUSING — Design System & Styles
   ═══════════════════════════════════════════════════════════ */

/* ─── Custom Properties ─── */
:root {
    --color-black: #000000;
    --color-white: #ffffff;
    --color-primary: #c8c9c7;
    --color-accent: #c4a4b0;
    --color-accent-dark: #b08e9a;
    --color-bg: #fafaf9;
    --color-text: #1a1a1a;
    --color-text-muted: #6b6b6b;
    --color-border: #e5e5e3;

    --font-family: 'Amarna', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-light: 400;
    --font-regular: 400;
    --font-semibold: 600;
    --font-bold: 700;

    --max-width: 1200px;
    --section-padding: 120px;
    --header-height: 72px;

    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;

    --transition-fast: 200ms ease;
    --transition-base: 300ms ease;
    --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-family);
    font-weight: var(--font-regular);
    color: var(--color-text);
    background: var(--color-white);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

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

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

a {
    color: inherit;
    text-decoration: none;
}

/* ─── Animation Classes ─── */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(32px);
    transition: opacity 0.7s cubic-bezier(0.4, 0, 0.2, 1),
        transform 0.7s cubic-bezier(0.4, 0, 0.2, 1);
}

.animate-on-scroll.is-visible {
    opacity: 1;
    transform: translateY(0);
}

.fade-in {
    opacity: 0;
    transition: opacity 0.6s ease;
}

.fade-in.is-visible {
    opacity: 1;
}

.scale-in {
    opacity: 0;
    transform: scale(0.95);
    transition: opacity 0.5s ease, transform 0.5s ease;
}

.scale-in.is-visible {
    opacity: 1;
    transform: scale(1);
}

@media (prefers-reduced-motion: reduce) {

    .animate-on-scroll,
    .fade-in,
    .scale-in {
        opacity: 1;
        transform: none;
        transition: none;
    }

    html {
        scroll-behavior: auto;
    }

    .hero-scroll svg,
    .method-card,
    .btn {
        animation: none !important;
        transition: none !important;
    }
}

/* ═══════════════════════════════════════════════════════════
   HEADER
   ═══════════════════════════════════════════════════════════ */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    transition: background-color var(--transition-base),
        box-shadow var(--transition-base),
        color var(--transition-base);
    color: var(--color-white);
}

.site-header.scrolled {
    background: var(--color-white);
    color: var(--color-text);
    box-shadow: 0 1px 0 var(--color-border);
}

.header-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 40px;
    height: var(--header-height);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.header-logo {
    display: flex;
    align-items: center;
    z-index: 10;
}

.header-logo-img {
    height: 48px;
    width: auto;
    transition: opacity var(--transition-base);
}

.header-logo-scrolled {
    display: none;
}

.site-header.scrolled .header-logo-default {
    display: none;
}

.site-header.scrolled .header-logo-scrolled {
    display: block;
}

.logo-dark {
    color: var(--color-text);
}

.header-nav {
    display: flex;
    align-items: center;
    gap: 24px;
}

.lang-trigger {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-weight: var(--font-semibold);
    transition: background var(--transition-fast);
    cursor: pointer;
}

.lang-trigger:hover {
    background: rgba(255, 255, 255, 0.1);
}

.site-header.scrolled .lang-trigger:hover {
    background: rgba(0, 0, 0, 0.05);
}

.globe-icon {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
}

/* ─── Buttons ─── */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-weight: var(--font-semibold);
    font-size: 15px;
    padding: 12px 24px;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
    white-space: nowrap;
    cursor: pointer;
}

.btn-header {
    background: var(--color-white);
    color: var(--color-text);
    font-size: 14px;
    padding: 10px 20px;
}

.site-header.scrolled .btn-header {
    background: var(--color-text);
    color: var(--color-white);
}

.btn-header:hover {
    transform: scale(1.03);
}

.btn-accent {
    background: var(--color-accent);
    color: var(--color-black);
}

.btn-accent:hover {
    background: var(--color-accent-dark);
    transform: translateY(-1px);
    box-shadow: 0 4px 16px rgba(196, 164, 176, 0.3);
}

.btn-large {
    font-size: 17px;
    padding: 16px 32px;
    border-radius: var(--radius-md);
}

.btn-hero {
    font-size: 16px;
    padding: 16px 32px;
    border-radius: var(--radius-md);
    margin-top: 8px;
}

.btn-submit {
    width: 100%;
    justify-content: center;
    padding: 16px;
    font-size: 16px;
    border-radius: var(--radius-md);
}

.btn-block {
    width: 100%;
    justify-content: center;
}

.btn-arrow {
    width: 18px;
    height: 18px;
    transition: transform var(--transition-fast);
}

.btn:hover .btn-arrow {
    transform: translateX(4px);
}

/* ─── Hamburger ─── */
.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 8px;
    z-index: 10;
}

.hamburger span {
    display: block;
    width: 22px;
    height: 2px;
    background: currentColor;
    border-radius: 1px;
    transition: all var(--transition-base);
}

.hamburger.is-open span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.hamburger.is-open span:nth-child(2) {
    opacity: 0;
}

.hamburger.is-open span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* ─── Mobile Menu ─── */
.mobile-menu {
    display: none;
    flex-direction: column;
    gap: 16px;
    padding: 16px 40px 24px;
    background: var(--color-white);
    border-top: 1px solid var(--color-border);
}

.mobile-menu:not([hidden]) {
    display: flex;
}

.mobile-menu .lang-trigger {
    color: var(--color-text);
    justify-content: center;
}

/* ═══════════════════════════════════════════════════════════
   HERO
   ═══════════════════════════════════════════════════════════ */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
    background: #000;
}

.hero-bg video {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg,
            rgba(0, 0, 0, 0.65) 0%,
            rgba(0, 0, 0, 0.35) 50%,
            rgba(0, 0, 0, 0.2) 100%);
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 40px;
    padding-top: var(--header-height);
    color: var(--color-white);
}

.hero-badge {
    font-size: 14px;
    font-weight: var(--font-semibold);
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--color-accent);
    margin-bottom: 24px;
}

.hero-title {
    font-size: clamp(36px, 5vw, 64px);
    font-weight: var(--font-bold);
    line-height: 1.1;
    letter-spacing: -0.02em;
    margin-bottom: 20px;
    max-width: 700px;
}

.hero-subtitle {
    font-size: clamp(18px, 2.5vw, 24px);
    font-weight: var(--font-light);
    margin-bottom: 16px;
    color: #ffffff;
}

.hero-description {
    font-size: 19px;
    font-weight: var(--font-semibold);
    line-height: 1.7;
    max-width: 520px;
    color: #ffffff;
    margin-bottom: 32px;
}

.hero-scroll {
    position: absolute;
    bottom: 32px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 1;
    color: var(--color-white);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    font-size: 12px;
    letter-spacing: 1px;
    text-transform: uppercase;
    opacity: 0.6;
}

.hero-scroll svg {
    width: 24px;
    height: 24px;
    animation: scrollBounce 2s ease-in-out infinite;
}

@keyframes scrollBounce {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(6px);
    }
}

/* ═══════════════════════════════════════════════════════════
   CONTACT FORM
   ═══════════════════════════════════════════════════════════ */
.contact-form-panel {
    position: fixed;
    inset: 0;
    z-index: 200;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    visibility: hidden;
    transition: opacity var(--transition-base), visibility var(--transition-base);
}

.contact-form-panel.is-open {
    opacity: 1;
    pointer-events: auto;
    visibility: visible;
}

.contact-form-inner {
    background: var(--color-white);
    border-radius: var(--radius-xl);
    padding: 48px;
    width: 90%;
    max-width: 680px;
    max-height: 90vh;
    overflow-y: auto;
    transform: translateY(24px) scale(0.97);
    transition: transform var(--transition-slow);
    box-shadow: 0 24px 64px rgba(0, 0, 0, 0.2);
}

.contact-form-panel.is-open .contact-form-inner {
    transform: translateY(0) scale(1);
}

.form-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 32px;
}

.form-header h2 {
    font-size: 24px;
    font-weight: var(--font-bold);
    letter-spacing: -0.02em;
}

.form-close {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: background var(--transition-fast);
    flex-shrink: 0;
}

.form-close:hover {
    background: var(--color-bg);
}

.form-close svg {
    width: 20px;
    height: 20px;
}

.form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.form-group-full {
    grid-column: 1 / -1;
}

.form-group label {
    display: block;
    font-size: 13px;
    font-weight: var(--font-semibold);
    color: var(--color-text);
    margin-bottom: 6px;
    letter-spacing: 0.02em;
}

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

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 14px 16px;
    border: 1.5px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-family: var(--font-family);
    font-size: 15px;
    color: var(--color-text);
    background: var(--color-white);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
    outline: none;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--color-primary);
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px rgba(196, 164, 176, 0.15);
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

.form-actions {
    margin-top: 24px;
}

/* ─── Date Range Picker ─── */
.date-picker-group {
    position: relative;
}

.date-picker-trigger {
    width: 100%;
    padding: 14px 16px;
    border: 1.5px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-family: var(--font-family);
    font-size: 15px;
    color: var(--color-primary);
    background: var(--color-white);
    display: flex;
    align-items: center;
    justify-content: space-between;
    cursor: pointer;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
    text-align: left;
}

.date-picker-trigger:hover {
    border-color: var(--color-accent);
}

.date-picker-trigger:focus {
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px rgba(196, 164, 176, 0.15);
    outline: none;
}

.date-picker-trigger.has-value {
    color: var(--color-text);
}

.date-picker-icon {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
    opacity: 0.5;
}

.date-picker-dropdown {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0.97);
    background: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    box-shadow: 0 24px 64px rgba(0, 0, 0, 0.2);
    padding: 28px;
    z-index: 250;
    opacity: 0;
    pointer-events: none;
    visibility: hidden;
    transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s ease;
    min-width: 640px;
    max-height: 90vh;
    overflow-y: auto;
}

.date-picker-dropdown.is-open {
    opacity: 1;
    pointer-events: auto;
    visibility: visible;
    transform: translate(-50%, -50%) scale(1);
}

.date-picker-backdrop {
    position: fixed;
    inset: 0;
    z-index: 240;
    background: rgba(0, 0, 0, 0.3);
    backdrop-filter: blur(2px);
    opacity: 0;
    pointer-events: none;
    visibility: hidden;
    transition: opacity 0.2s ease, visibility 0.2s ease;
}

.date-picker-backdrop.is-open {
    opacity: 1;
    pointer-events: auto;
    visibility: visible;
}

.date-picker-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 16px;
}

.date-picker-months-header {
    display: flex;
    gap: 80px;
}

.date-picker-month-title {
    font-size: 15px;
    font-weight: var(--font-bold);
    color: var(--color-text);
    text-align: center;
    min-width: 140px;
}

.date-picker-nav {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: background var(--transition-fast);
    flex-shrink: 0;
}

.date-picker-nav:hover {
    background: var(--color-bg);
}

.date-picker-nav svg {
    width: 16px;
    height: 16px;
}

.date-picker-calendars {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 32px;
}

.date-picker-calendar {
    width: 100%;
}

.date-picker-calendar table {
    width: 100%;
    border-collapse: collapse;
    table-layout: fixed;
}

.date-picker-calendar th {
    font-size: 12px;
    font-weight: var(--font-semibold);
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    padding: 0 0 8px;
    text-align: center;
}

.date-picker-calendar td {
    padding: 1px 0;
    text-align: center;
}

.date-picker-calendar .dp-day {
    width: 36px;
    height: 36px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    font-weight: var(--font-regular);
    color: var(--color-text);
    border-radius: 50%;
    cursor: pointer;
    transition: background 0.15s ease, color 0.15s ease;
    border: none;
    background: none;
    font-family: var(--font-family);
}

.date-picker-calendar .dp-day:hover:not(.dp-disabled):not(.dp-selected) {
    background: var(--color-bg);
}

.date-picker-calendar .dp-day.dp-today {
    font-weight: var(--font-bold);
}

.date-picker-calendar .dp-day.dp-disabled {
    color: var(--color-border);
    cursor: default;
}

.date-picker-calendar .dp-day.dp-selected {
    background: var(--color-text);
    color: var(--color-white);
    font-weight: var(--font-semibold);
}

.date-picker-calendar .dp-day.dp-in-range {
    background: rgba(196, 164, 176, 0.12);
    border-radius: 0;
}

.date-picker-calendar td.dp-range-start .dp-day.dp-in-range,
.date-picker-calendar td.dp-range-start .dp-day.dp-selected {
    border-radius: 50% 0 0 50%;
}

.date-picker-calendar td.dp-range-end .dp-day.dp-in-range,
.date-picker-calendar td.dp-range-end .dp-day.dp-selected {
    border-radius: 0 50% 50% 0;
}

.date-picker-calendar td.dp-range-start.dp-range-end .dp-day {
    border-radius: 50%;
}

.date-picker-calendar td.dp-in-range-cell {
    background: rgba(196, 164, 176, 0.12);
}

.date-picker-calendar td.dp-range-start {
    border-radius: var(--radius-sm) 0 0 var(--radius-sm);
    background: rgba(196, 164, 176, 0.12);
}

.date-picker-calendar td.dp-range-end {
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    background: rgba(196, 164, 176, 0.12);
}

.date-picker-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 16px;
    padding-top: 16px;
    border-top: 1px solid var(--color-border);
}

.btn-small {
    padding: 10px 24px;
    font-size: 14px;
}

.date-picker-clear {
    font-family: var(--font-family);
    font-size: 14px;
    font-weight: var(--font-semibold);
    color: var(--color-text);
    padding: 8px 20px;
    border-radius: var(--radius-sm);
    transition: background var(--transition-fast);
    text-decoration: underline;
    text-underline-offset: 2px;
}

.date-picker-clear:hover {
    background: var(--color-bg);
}

/* ─── Form Success ─── */
.form-success {
    text-align: center;
    padding: 40px 20px;
}

.form-success svg {
    width: 60px;
    height: 60px;
    margin: 0 auto 20px;
}

.form-success h3 {
    font-size: 22px;
    font-weight: var(--font-bold);
    margin-bottom: 8px;
}

.form-success p {
    color: var(--color-text-muted);
}

/* ═══════════════════════════════════════════════════════════
   CONTENT SECTIONS
   ═══════════════════════════════════════════════════════════ */
.content-section {
    padding: var(--section-padding) 0;
}

.section-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 40px;
}

.section-label {
    display: inline-block;
    font-size: 13px;
    font-weight: var(--font-semibold);
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--color-accent);
    margin-bottom: 16px;
}

.content-section h2 {
    font-size: clamp(28px, 3.5vw, 44px);
    font-weight: var(--font-bold);
    line-height: 1.15;
    letter-spacing: -0.02em;
    margin-bottom: 20px;
}

.content-section p {
    font-size: 20px;
    font-weight: var(--font-semibold);
    line-height: 1.7;
    color: var(--color-text-muted);
}

.text-muted {
    color: var(--color-text-muted) !important;
    margin-top: 12px;
}

.text-accent {
    color: var(--color-accent) !important;
    font-weight: var(--font-semibold);
    margin-top: 16px;
}

/* ─── Zig-Zag Layout ─── */
.zigzag {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.zigzag-reverse .zigzag-text {
    order: -1;
}

.zigzag-image img {
    width: 100%;
    height: 480px;
    object-fit: cover;
    border-radius: var(--radius-lg);
}

.quality-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-top: 24px;
    padding: 10px 16px;
    background: rgba(196, 164, 176, 0.08);
    border: 1px solid rgba(196, 164, 176, 0.2);
    border-radius: var(--radius-sm);
    font-size: 13px;
    font-weight: var(--font-semibold);
    color: var(--color-accent);
}

.quality-badge svg {
    width: 16px;
    height: 16px;
    color: var(--color-accent);
}

/* ─── Problem Section ─── */
.section-problem {
    background: var(--color-bg);
}

/* ─── Housing Tiers Section ─── */
.section-tiers {
    background: var(--color-white);
}

.tiers-header {
    text-align: center;
    max-width: 680px;
    margin: 0 auto 56px;
}

.tiers-header p {
    margin-top: 12px;
}

.tiers-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.tier-card {
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--color-border);
    background: var(--color-white);
    transition: transform var(--transition-base), box-shadow var(--transition-base);
    transition-delay: calc(var(--delay, 0) * 100ms);
}

.tier-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 16px 48px rgba(0, 0, 0, 0.08);
}

.tier-image img {
    width: 100%;
    height: 240px;
    object-fit: cover;
}

.tier-body {
    padding: 28px 24px 32px;
}

.tier-label {
    display: inline-block;
    font-size: 12px;
    font-weight: var(--font-semibold);
    letter-spacing: 1.5px;
    text-transform: uppercase;
    color: var(--color-accent);
    margin-bottom: 8px;
}

.tier-card h3 {
    font-size: 20px;
    font-weight: var(--font-bold);
    margin-bottom: 10px;
    color: var(--color-text);
}

.tier-card p {
    font-size: 18px;
    line-height: 1.7;
    color: var(--color-text-muted);
}

/* ─── Method Section ─── */
.section-method {
    background: var(--color-black);
    color: var(--color-white);
}

.section-method .section-label {
    color: var(--color-accent);
}

.section-method h2 {
    color: var(--color-white);
}

.method-header {
    text-align: center;
    margin-bottom: 64px;
}

.method-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.method-card {
    padding: 40px 32px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-lg);
    transition: background var(--transition-base), border-color var(--transition-base), transform var(--transition-base);
    transition-delay: calc(var(--delay, 0) * 100ms);
}

.method-card:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(196, 164, 176, 0.3);
    transform: translateY(-4px);
}

.method-number {
    display: block;
    font-size: 48px;
    font-weight: var(--font-bold);
    color: var(--color-accent);
    line-height: 1;
    margin-bottom: 20px;
}

.method-card h3 {
    font-size: 20px;
    font-weight: var(--font-bold);
    margin-bottom: 16px;
    color: var(--color-white);
}

.method-card p {
    font-size: 18px;
    line-height: 1.7;
    color: rgba(255, 255, 255, 0.85);
}

/* ─── Testimonial Section ─── */
.section-testimonial {
    background: var(--color-bg);
}

.testimonial {
    text-align: center;
    max-width: 720px;
    margin: 0 auto;
}

.quote-mark {
    width: 40px;
    height: 32px;
    color: var(--color-accent);
    margin-bottom: 32px;
    opacity: 0.4;
}

.testimonial blockquote p {
    font-size: clamp(20px, 2.5vw, 28px);
    font-weight: var(--font-light);
    line-height: 1.5;
    color: var(--color-text);
    font-style: italic;
}

.testimonial cite {
    display: block;
    margin-top: 24px;
    font-size: 16px;
    font-style: normal;
    font-weight: var(--font-semibold);
    color: var(--color-text-muted);
}

/* ─── CTA Section ─── */
.section-cta {
    background: var(--color-white);
    text-align: center;
}

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

.cta-block h2 {
    font-size: clamp(36px, 4vw, 56px);
    margin-bottom: 20px;
}

.cta-block p {
    margin-bottom: 32px;
}

/* ─── Partner Section ─── */
.section-partner {
    background: var(--color-bg);
}

.partner-logo-block {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 24px;
    font-size: 16px;
    font-weight: var(--font-bold);
    color: var(--color-text);
}

.partner-logo-block .logo-icon {
    width: 28px;
    height: 28px;
}

.section-partner .btn {
    margin-top: 32px;
}

.partner-icon {
    width: 40px;
    height: 40px;
}

/* ═══════════════════════════════════════════════════════════
   FOOTER
   ═══════════════════════════════════════════════════════════ */
.site-footer {
    background: var(--color-black);
    color: rgba(255, 255, 255, 0.8);
    padding: 48px 0;
}

.footer-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 40px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 12px;
}

.footer-brand .logo-icon,
.footer-logo-img {
    height: 48px;
    width: auto;
    color: var(--color-white);
}

.footer-name {
    font-size: 15px;
    font-weight: var(--font-semibold);
    color: var(--color-white);
}

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

.footer-copy {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.55);
}

.site-footer .lang-trigger {
    color: rgba(255, 255, 255, 0.7);
    font-size: 14px;
}

.site-footer .lang-trigger:hover {
    color: var(--color-white);
    background: rgba(255, 255, 255, 0.08);
}

/* ═══════════════════════════════════════════════════════════
   LANGUAGE MODAL
   ═══════════════════════════════════════════════════════════ */
.lang-modal-backdrop {
    position: fixed;
    inset: 0;
    z-index: 300;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    visibility: hidden;
    transition: opacity var(--transition-base), visibility var(--transition-base);
}

.lang-modal-backdrop.is-open {
    opacity: 1;
    pointer-events: auto;
    visibility: visible;
}

.lang-modal {
    background: var(--color-white);
    border-radius: var(--radius-xl);
    padding: 40px;
    width: 90%;
    max-width: 480px;
    transform: translateY(16px) scale(0.97);
    transition: transform var(--transition-slow);
}

.lang-modal-backdrop.is-open .lang-modal {
    transform: translateY(0) scale(1);
}

.lang-modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 32px;
}

.lang-modal-header h3 {
    font-size: 20px;
    font-weight: var(--font-bold);
}

.lang-modal-close {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: background var(--transition-fast);
}

.lang-modal-close:hover {
    background: var(--color-bg);
}

.lang-modal-close svg {
    width: 18px;
    height: 18px;
}

.lang-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
}

.lang-option {
    padding: 16px 20px;
    border-radius: var(--radius-sm);
    text-align: left;
    font-size: 15px;
    font-weight: var(--font-regular);
    transition: background var(--transition-fast), border-color var(--transition-fast);
    border: 1.5px solid transparent;
}

.lang-option:hover {
    background: var(--color-bg);
}

.lang-option.active {
    border-color: var(--color-text);
    background: var(--color-bg);
    font-weight: var(--font-semibold);
}

.lang-native {
    display: block;
}

/* ═══════════════════════════════════════════════════════════
   RESPONSIVE — Tablet (768px+)
   ═══════════════════════════════════════════════════════════ */
@media (max-width: 1024px) {
    :root {
        --section-padding: 80px;
    }

    .zigzag {
        gap: 48px;
    }

    .zigzag-image img {
        height: 380px;
    }

    .method-cards {
        gap: 20px;
    }

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

    .tiers-cards {
        gap: 20px;
    }

    .tier-image img {
        height: 200px;
    }
}

/* ═══════════════════════════════════════════════════════════
   RESPONSIVE — Mobile (≤768px)
   ═══════════════════════════════════════════════════════════ */
@media (max-width: 768px) {
    :root {
        --section-padding: 64px;
        --header-height: 64px;
    }

    .header-inner {
        padding: 0 20px;
    }

    .header-nav {
        display: none;
    }

    .hamburger {
        display: flex;
    }

    .mobile-menu {
        padding: 16px 20px 24px;
    }

    .hero-content {
        padding: 0 20px;
        padding-top: calc(var(--header-height) + 40px);
    }

    .hero-title {
        max-width: 100%;
    }

    .hero-description {
        max-width: 100%;
    }

    .section-inner {
        padding: 0 20px;
    }

    /* Zig-zag → stacked */
    .zigzag {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .zigzag-reverse .zigzag-text {
        order: 0;
    }

    .zigzag-image img {
        height: 280px;
        border-radius: var(--radius-md);
    }

    /* Method cards → stack */
    .method-cards {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .method-card {
        padding: 28px 24px;
    }

    /* Tier cards → stack */
    .tiers-cards {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .tier-image img {
        height: 220px;
    }

    .tier-body {
        padding: 24px 20px 28px;
    }

    .method-number {
        font-size: 36px;
        margin-bottom: 12px;
    }

    /* Form → modal full-screen */
    .contact-form-inner {
        width: 100%;
        max-width: 100%;
        height: 100%;
        max-height: 100%;
        border-radius: 0;
        padding: 24px 20px;
        transform: translateY(100%);
    }

    .contact-form-panel.is-open .contact-form-inner {
        transform: translateY(0);
    }

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

    .form-header h2 {
        font-size: 20px;
    }

    .date-picker-dropdown {
        min-width: auto;
        width: calc(100vw - 32px);
        max-width: 360px;
        padding: 20px;
    }

    .date-picker-calendars {
        grid-template-columns: 1fr;
        gap: 24px;
    }

    .date-picker-months-header {
        gap: 0;
        flex-direction: column;
        align-items: center;
    }

    /* Footer */
    .footer-inner {
        flex-direction: column;
        gap: 20px;
        text-align: center;
        padding: 0 20px;
    }

    .footer-meta {
        flex-direction: column;
        gap: 16px;
    }

    /* Language modal → bottom sheet */
    .lang-modal-backdrop {
        align-items: flex-end;
    }

    .lang-modal {
        width: 100%;
        max-width: 100%;
        border-radius: var(--radius-xl) var(--radius-xl) 0 0;
        padding: 32px 20px;
        transform: translateY(100%);
    }

    .lang-modal-backdrop.is-open .lang-modal {
        transform: translateY(0);
    }

    .lang-grid {
        grid-template-columns: 1fr;
        gap: 4px;
    }

    /* Testimonial */
    .testimonial blockquote p {
        font-size: 20px;
    }
}

/* ─── Body overflow lock ─── */
body.no-scroll {
    overflow: hidden;
}