/* Reset and base styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --sand: #E7D9C5;
    --dark: #000000;
    --ink: #121212;
    --red: #E23A2E;
    --larch-gold: #C9A04F; /* золото как у "larch" в логотипе */
    --olive: #6C715D;
    --white: #ffffff;
    --gray: rgba(255, 255, 255, 0.6);
    --border: rgba(255, 255, 255, 0.06);
    
    --font-mono: 'IBM Plex Mono', ui-monospace, 'SF Mono', Menlo, Consolas, monospace;
    --transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    --container-width: 960px;
}

/* Base styles */
html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-mono);
    background: var(--dark);
    color: var(--white);
    line-height: 1.6;
    letter-spacing: 0.02em;
    overflow-x: hidden;
    cursor: default;
}

/* Grain overlay */
.grain-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url('assets/grain.png');
    background-size: 1024px 1024px;
    opacity: 0.08;
    mix-blend-mode: screen;
    pointer-events: none;
    z-index: 1;
}

/* Preloader */
.preloader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--dark);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

.preloader.hidden {
    opacity: 0;
    visibility: hidden;
}

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

.preloader-logo {
    font-size: 2rem;
    font-weight: 600;
    margin-bottom: 2rem;
    color: var(--red);
}

.preloader-spinner {
    width: 40px;
    height: 40px;
    border: 2px solid var(--border);
    border-top: 2px solid var(--red);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Main app container */
.app {
    position: relative;
    min-height: 100vh;
    z-index: 2;
}

/* Language switcher */
.language-switcher {
    position: fixed;
    top: 2rem;
    right: 2rem;
    z-index: 100;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(0, 0, 0, 0.8);
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 0.5rem;
    backdrop-filter: blur(10px);
}

.language-switcher.hidden-mobile { 
    display: none !important; 
}

.lang-btn {
    background: none;
    border: none;
    color: var(--gray);
    cursor: pointer;
    padding: 0.25rem 0.5rem;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    transition: var(--transition);
    border-radius: 2px;
}

.lang-btn:hover {
    color: var(--white);
    background: rgba(255, 255, 255, 0.1);
}

.lang-btn.active {
    color: var(--red);
    background: rgba(226, 58, 46, 0.2);
}

.lang-separator {
    color: var(--border);
    font-size: 0.75rem;
}

/* Navigation arrows */
.nav-arrow {
    position: fixed;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--white);
    cursor: pointer;
    padding: 1rem;
    z-index: 100;
    transition: var(--transition);
    opacity: 0.6;
}

.nav-arrow:hover {
    opacity: 1;
    transform: translateY(-50%) scale(1.1);
}

.nav-arrow:active {
    transform: translateY(-50%) scale(0.95);
}

.nav-left {
    left: 2rem;
}

.nav-right {
    right: 2rem;
}

.nav-arrow.hidden {
    opacity: 0;
    pointer-events: none;
}

/* Page content */
.page-content {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 4rem 2rem;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

/* Typography */
h1 {
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: 2rem;
    letter-spacing: -0.02em;
}

h2 {
    font-size: clamp(1.5rem, 4vw, 2.5rem);
    font-weight: 500;
    margin-bottom: 1.5rem;
}

h3 {
    font-size: 1.25rem;
    font-weight: 500;
    margin-bottom: 1rem;
}

p {
    font-size: 1rem;
    margin-bottom: 1.5rem;
    line-height: 1.7;
}

.lead {
    font-size: 1.125rem;
    color: var(--gray);
    margin-bottom: 2rem;
}

.kicker {
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--sand);
    margin-bottom: 1rem;
    opacity: 0.8;
}

.quote {
    font-size: 0.875rem;
    color: var(--gray);
    margin-bottom: 0.5rem;
    font-style: italic;
}

/* Arabic text styling */
[dir="rtl"] .quote {
    text-align: right;
    font-family: 'IBM Plex Mono', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

[dir="rtl"] h1,
[dir="rtl"] h2,
[dir="rtl"] h3,
[dir="rtl"] p,
[dir="rtl"] .lead,
[dir="rtl"] .kicker {
    text-align: right;
}

/* Logo */
.logo-container {
    text-align: center;
    margin-bottom: 3rem;
}

.logo {
    max-width: 320px;
    height: auto;
}

/* Contents section */
.contents {
    margin-top: 3rem;
}

.contents-label {
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--gray);
    margin-bottom: 2rem;
    opacity: 0.7;
}

.contents-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1rem;
    list-style: none;
}

.contents-list li {
    position: relative;
    padding-left: 1.5rem;
    margin-bottom: 0.75rem;
    cursor: pointer;
    transition: var(--transition);
}

.contents-list li::before {
    content: '>';
    position: absolute;
    left: 0;
    color: var(--red);
    font-weight: 600;
}

.contents-list li:hover {
    transform: translateX(2px);
    color: var(--red);
}

.content-link {
    text-decoration: none;
    color: inherit;
    display: block;
}

.content-description {
    display: block;
    font-size: 0.875rem;
    color: var(--gray);
    margin-top: 0.25rem;
    font-weight: 400;
}

/* Content lists */
.content-list {
    list-style: none;
    margin: 2rem 0;
}

.content-list li {
    position: relative;
    padding-left: 1.5rem;
    margin-bottom: 1rem;
}

.content-list li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--red);
}

/* Cards and blocks */
.card {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    transition: var(--transition);
}

.card:hover {
    background: rgba(255, 255, 255, 0.04);
    border-color: rgba(255, 255, 255, 0.1);
}

.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.card-icon {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.specs-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin: 2rem 0;
}

.spec-item {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 1rem;
    text-align: center;
    font-size: 0.875rem;
}

/* KPI Cards */
.kpi-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.kpi-card {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 2rem 1rem;
    text-align: center;
}

.kpi-value {
    font-size: 2.5rem;
    font-weight: 600;
    color: var(--red);
    margin-bottom: 0.5rem;
}

.kpi-label {
    font-size: 0.875rem;
    color: var(--gray);
    margin-bottom: 0.25rem;
}

.kpi-suffix {
    font-size: 0.75rem;
    color: var(--sand);
    opacity: 0.7;
}

/* Case Studies */
.case-studies {
    display: grid;
    gap: 2rem;
    margin: 2rem 0;
}

.case-study-card {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 2rem;
}

.case-metrics {
    display: flex;
    gap: 1rem;
    margin-top: 1rem;
    flex-wrap: wrap;
}

.metric {
    background: var(--red);
    color: var(--white);
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 500;
}

/* Badges */
.badges {
    display: flex;
    gap: 1rem;
    margin: 2rem 0;
    flex-wrap: wrap;
}

.badge {
    background: var(--olive);
    color: var(--white);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 500;
}

/* Sub-block */
.sub-block {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 1.5rem;
    margin: 2rem 0;
}

.sub-block h3 {
    color: var(--sand);
    margin-bottom: 1rem;
}

/* Catalog download */
.catalog-download {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 2rem;
    margin: 2rem 0;
    text-align: center;
}

.catalog-download h3 {
    color: var(--sand);
    margin-bottom: 1rem;
}

.catalog-subtitle {
    color: var(--gray);
    margin-bottom: 1.5rem;
    font-size: 0.875rem;
}

.catalog-btn {
    font-size: 1rem;
    padding: 1rem 2rem;
}

/* Notifications */
.notification {
    position: fixed;
    top: 2rem;
    right: 2rem;
    background: var(--ink);
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 1rem 1.5rem;
    color: var(--white);
    z-index: 1000;
    animation: slideIn 0.3s ease;
}

.notification-success {
    border-color: #28a745;
    background: rgba(40, 167, 69, 0.1);
}

.notification-error {
    border-color: var(--red);
    background: rgba(226, 58, 46, 0.1);
}

@keyframes slideIn {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

/* Policy note */
.policy-note {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 1rem;
    margin: 2rem 0;
    font-size: 0.875rem;
    color: var(--gray);
}

/* Buttons and CTAs */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    background: var(--red);
    color: var(--white);
    text-decoration: none;
    border: none;
    border-radius: 4px;
    font-family: var(--font-mono);
    font-size: 0.875rem;
    cursor: pointer;
    transition: var(--transition);
    margin: 0.5rem 0.5rem 0.5rem 0;
}

.btn:hover {
    background: #c0392b;
    transform: translateY(-1px);
}

.btn-secondary {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--white);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: var(--white);
}

.cta-container {
    margin: 2rem 0;
}

/* Form elements */
.contact-form {
    max-width: 500px;
    margin: 2rem 0;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-size: 0.875rem;
    color: var(--gray);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border);
    border-radius: 4px;
    color: var(--white);
    font-family: var(--font-mono);
    font-size: 0.875rem;
    transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--red);
    background: rgba(255, 255, 255, 0.08);
}

.checkbox-group {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    margin: 1.5rem 0;
}

.checkbox-group input[type="checkbox"] {
    width: auto;
    margin-top: 0.25rem;
}

/* Footer */
.footer {
    margin-top: 4rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border);
    text-align: center;
    font-size: 0.75rem;
    color: var(--gray);
}

.footer-content {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 2rem;
    margin-bottom: 1rem;
}

.footer-email {
    color: var(--sand);
    text-decoration: none;
    transition: var(--transition);
    font-family: var(--font-mono);
}

.footer-email:hover {
    color: var(--white);
    text-decoration: underline;
}

.social-icons {
    display: flex;
    gap: 1rem;
}

.social-icon {
    width: 20px;
    height: 20px;
    opacity: 0.6;
    transition: var(--transition);
}

.social-icon:hover {
    opacity: 1;
}

.social-icon svg {
    width: 100%;
    height: 100%;
}

/* Modal */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1000;
    display: none;
    align-items: center;
    justify-content: center;
}

.modal.active {
    display: flex;
}

.modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(10px);
}

.modal-content {
    position: relative;
    background: var(--ink);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 2rem;
    max-width: 500px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
}

.modal-close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: none;
    border: none;
    color: var(--white);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0.5rem;
    transition: var(--transition);
}

.modal-close:hover {
    color: var(--red);
}

/* Fade animations */
.fade-enter {
    opacity: 0;
    transform: translateY(12px);
}

.fade-enter-active {
    opacity: 1;
    transform: none;
    transition: opacity 0.5s ease, transform 0.5s ease;
}

.fade-exit {
    opacity: 1;
}

.fade-exit-active {
    opacity: 0;
    transform: translateY(-12px);
    transition: opacity 0.35s ease, transform 0.35s ease;
}

/* RTL Support for Arabic */
[dir="rtl"] .language-switcher {
    right: auto;
    left: 2rem;
}

[dir="rtl"] .nav-left {
    left: auto;
    right: 2rem;
}

[dir="rtl"] .nav-right {
    right: auto;
    left: 2rem;
}

[dir="rtl"] .contents-list li {
    padding-left: 0;
    padding-right: 1.5rem;
}

[dir="rtl"] .contents-list li::before {
    left: auto;
    right: 0;
}

[dir="rtl"] .content-list li {
    padding-left: 0;
    padding-right: 1.5rem;
}

[dir="rtl"] .content-list li::before {
    left: auto;
    right: 0;
}

[dir="rtl"] .contents-list li:hover {
    transform: translateX(-2px);
}

/* Responsive design */
@media (max-width: 768px) {
    .language-switcher {
        top: 1rem;
        right: 1rem;
    }
    
    .nav-arrow {
        padding: 0.75rem;
    }
    
    .nav-left {
        left: 1rem;
    }
    
    .nav-right {
        right: 1rem;
    }
    
    .page-content {
        padding: 2rem 1rem;
    }
    
    .contents-list {
        grid-template-columns: 1fr;
    }
    
    .card-grid {
        grid-template-columns: 1fr;
    }
    
    .specs-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-content {
        flex-direction: column;
        gap: 1rem;
    }
}

@media (max-width: 480px) {
    .nav-arrow {
        display: none;
    }
    
    .specs-grid {
        grid-template-columns: 1fr;
    }
    
    .btn {
        display: block;
        width: 100%;
        margin: 0.5rem 0;
        text-align: center;
    }
}
/* ------- Utility Rail ------- */
.utility-rail{
    position: fixed;
    right: 24px;
    top: 50%;
    transform: translateY(-50%);
    display: flex;
    flex-direction: column;
    gap: 10px;
    z-index: 90;
  }
  .ur-btn{
    width: 44px; height: 44px;
    border-radius: 50%;
    display: grid; place-items: center;
    color: #fff;
    background: rgba(255,255,255,0.04);
    border: 1px solid rgba(255,255,255,0.08);
    transition: .2s;
  }
  .ur-btn:hover{ background: rgba(255,255,255,0.08); border-color: rgba(255,255,255,0.2); }
  .ur-call{ background: var(--olive); border-color: transparent; color:#fff; }
  .ur-wa  { background: #25D366; border-color: transparent; color:#000; }
  
  /* ------- Mobile FAB ------- */
  .fab{
    position: fixed; right: 16px; bottom: 16px;
    width: 56px; height: 56px; border-radius: 50%;
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(255,255,255,0.12);
    color: #fff; display: none; z-index: 95;
  }
  .fab-menu{
    position: fixed; right: 16px; bottom: 80px;
    display: flex; flex-direction: column; gap: 8px;
    opacity: 0; pointer-events: none; transform: translateY(8px);
    transition: .2s; z-index: 95;
  }
  .fab-menu a{
    padding: 10px 14px; border-radius: 10px;
    background: rgba(0,0,0,0.85);
    border: 1px solid rgba(255,255,255,0.12);
    color: #fff; text-decoration: none; font-size: .9rem;
  }
  .fab-menu.open{ opacity: 1; pointer-events: auto; transform: none; }
  
  /* responsive: rail -> FAB */
  @media (max-width: 640px){
    .utility-rail{ display:none; }
    .fab{ display:grid; place-items:center; }
  }
  /* === Fix: navigation arrows vs utility-rail === */
.nav-left,
.nav-right {
  /* поднимаем выше центра экрана */
  top: 36%;
  transform: translateY(-36%);
  z-index: 80; /* выше контента, ниже рейла (у рейла z-index:90) */
}

/* правую стрелку уводим левее, чтобы не заходила под кнопки рейла */
.nav-right {
  /* 24px (отступ края) + 44px (кнопка рейла) + 16px (зазор) ≈ 84px */
  right: 84px;
}

/* левую можно оставить у края, но тоже подняли выше */
.nav-left {
  left: 24px;
}

/* планшеты: чуть ниже, чтобы не выглядело слишком высоко */
@media (max-width: 1024px) {
  .nav-left, .nav-right { top: 40%; transform: translateY(-40%); }
  .nav-right { right: 76px; }
}

/* мобильные: рейла нет — возвращаем к краю и по центру */
@media (max-width: 640px) {
  .nav-left, .nav-right { top: 50%; transform: translateY(-50%); }
  .nav-right { right: 16px; }
}
/* Кнопка в золоте логотипа */
.btn-gold{
    background: var(--larch-gold);
    border: 1px solid var(--larch-gold);
    color: #121212;            /* тёмный текст для контраста */
  }
  .btn-gold:hover{
    filter: brightness(.95);
    transform: translateY(-1px);
  }
  /* окрасить любую кнопку в блоке catalog-download */
.catalog-download .btn{
    background: var(--larch-gold);
    border-color: var(--larch-gold);
    color: #121212;
  }
  .catalog-download .btn:hover{
    filter: brightness(.95);
    transform: translateY(-1px);
  }    
  .wa-cta {
    color: #25D366; /* WhatsApp green */
    text-decoration: none;
    margin-left: .5rem;
    font-family: "IBM Plex Mono", monospace;
    transition: color 0.2s ease;
  }
  .wa-cta:hover {
    color: #C99A3A; /* Larch gold */
  }
  /* Inline WhatsApp CTA */
.wa-cta{
    color:#25D366;                 /* зелёный WhatsApp */
    text-decoration:none;
    border-bottom:1px dotted rgba(37,211,102,.35);
    padding-bottom:1px;
    transition:color .2s ease,border-color .2s ease;
  }
  .wa-cta:hover{
    color:var(-larch-gold);             /* ваш larch gold */
    border-color:var(-larch-gold);
  }