/* ============================================================
   GENERAL LASERS ULM — Design System
   Inspired by generallasers.de
   Colors: Red #BE1823, White, Black #1A1A1A
   Font: Montserrat
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@300;400;500;600;700;800;900&display=swap');

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

:root {
    --primary: #BE1823;
    --primary-dark: #9A131C;
    --primary-light: #E8363F;
    --black: #1A1A1A;
    --dark-gray: #333333;
    --gray: #666666;
    --light-gray: #F5F5F5;
    --white: #FFFFFF;
    --shadow: 0 4px 20px rgba(0,0,0,0.08);
    --shadow-lg: 0 10px 40px rgba(0,0,0,0.12);
    --radius: 12px;
    --radius-lg: 20px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

html { scroll-behavior: smooth; }

body {
    font-family: 'Montserrat', sans-serif;
    color: var(--dark-gray);
    line-height: 1.7;
    background: var(--white);
    overflow-x: hidden;
}

a { text-decoration: none; color: inherit; transition: var(--transition); }
img { max-width: 100%; height: auto; display: block; }
ul { list-style: none; }

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* --- HEADER / NAVBAR --- */
.navbar {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 1000;
    background: rgba(255,255,255,0.97);
    backdrop-filter: blur(12px);
    box-shadow: 0 2px 20px rgba(0,0,0,0.06);
    transition: var(--transition);
}

.navbar .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
}

.navbar-logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.navbar-logo .logo-icon {
    color: var(--primary);
}

.navbar-logo .logo-text {
    display: flex;
    flex-direction: column;
    line-height: 1.1;
}

.navbar-logo .logo-text .logo-general {
    font-size: 18px;
    font-weight: 800;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: var(--black);
}

.navbar-logo .logo-text .logo-lasers {
    font-size: 14px;
    font-weight: 600;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--dark-gray);
}

.navbar-logo .logo-text .logo-ulm {
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 4px;
    text-transform: uppercase;
    color: var(--primary);
}

.navbar-logo img.custom-logo {
    max-height: 50px;
    width: auto;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-links a {
    font-size: 13px;
    font-weight: 800;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    color: var(--dark-gray);
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: var(--transition);
}

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

.nav-links a:hover { color: var(--primary); }

.btn-contact {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 28px;
    background: var(--primary);
    color: var(--white) !important;
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    border-radius: 6px;
    border: none;
    cursor: pointer;
    transition: var(--transition);
}

.btn-contact:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(190, 24, 35, 0.3);
}

.btn-contact::after { display: none !important; }

/* Mobile Menu Toggle */
.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    background: none;
    border: none;
    padding: 8px;
}

.nav-toggle span {
    width: 25px;
    height: 2px;
    background: var(--black);
    transition: var(--transition);
}

/* --- HERO --- */
.hero {
    position: relative;
    height: 100vh;
    min-height: 600px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
    filter: brightness(0.85);
}

.hero-video {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: 0;
    filter: brightness(0.85);
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        180deg,
        rgba(255,255,255,0.3) 0%,
        rgba(255,255,255,0.1) 50%,
        rgba(255,255,255,0.95) 100%
    );
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 800px;
    padding: 0 24px;
}

.hero-content h1 {
    font-size: clamp(32px, 5vw, 56px);
    font-weight: 900;
    color: var(--color-hero-title, #FFFFFF);
    line-height: 1.2;
    margin-bottom: 16px;
}

.hero-content p {
    font-size: clamp(16px, 2vw, 20px);
    color: var(--color-hero-subtitle, #FFFFFF);
    font-weight: 400;
    max-width: 600px;
    margin: 0 auto 32px;
}

.hero-content .btn-contact {
    font-size: 15px;
    padding: 16px 36px;
}

/* --- SECTION SPACING --- */
.section {
    padding: 100px 0;
}

.section-title {
    text-align: center;
    margin-bottom: 60px;
}

.section-title h2 {
    font-size: clamp(28px, 3.5vw, 42px);
    font-weight: 800;
    color: var(--color-section-title, var(--black));
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 16px;
}

.section-title p {
    font-size: 17px;
    color: var(--color-body-text, var(--gray));
    max-width: 600px;
    margin: 0 auto;
}

/* --- BENEFITS (NiSV, Zertifizierung, Prämie) --- */
.benefits { background: var(--white); }

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}

.benefit-card {
    text-align: center;
    padding: 40px 30px;
    border-radius: var(--radius-lg);
    transition: var(--transition);
    background: var(--white);
}

.benefit-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.benefit-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(190, 24, 35, 0.08);
    border-radius: 50%;
    color: var(--primary);
}

.benefit-icon svg { width: 36px; height: 36px; }

.benefit-card h3 {
    font-size: 20px;
    font-weight: 700;
    color: var(--color-benefit-title, var(--black));
    margin-bottom: 12px;
}

.benefit-card p {
    font-size: 15px;
    color: var(--color-body-text, var(--gray));
}

/* --- CONSULTATION STEPS --- */
.consultation { background: var(--light-gray); }

.steps-grid {
    display: flex;
    justify-content: center;
    gap: 24px;
    flex-wrap: wrap;
}

.step-item {
    text-align: center;
    flex: 0 0 180px;
    padding: 24px 16px;
    position: relative;
}

.step-icon {
    width: 72px;
    height: 72px;
    margin: 0 auto 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary);
    border-radius: 50%;
    color: var(--white);
    transition: var(--transition);
}

.step-item:hover .step-icon {
    transform: scale(1.1);
    box-shadow: 0 8px 30px rgba(190, 24, 35, 0.35);
}

.step-icon svg { width: 28px; height: 28px; }

.step-item h4 {
    font-size: 15px;
    font-weight: 700;
    color: var(--color-benefit-title, var(--black));
    margin-bottom: 8px;
}

.step-item p {
    font-size: 13px;
    color: var(--color-body-text, var(--gray));
}

/* --- PRODUCTS --- */
.products { background: var(--light-gray); }

.products-count {
    display: inline-block;
    margin-top: 16px;
    padding: 6px 20px;
    background: var(--primary);
    color: var(--white);
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    border-radius: 50px;
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 24px;
}

.product-card {
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
    background: var(--white);
    cursor: pointer;
    position: relative;
}

.product-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(190, 24, 35, 0.15);
}

.product-card-image {
    height: 200px;
    overflow: hidden;
    background: var(--light-gray);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 16px;
    position: relative;
}

.product-card-image img {
    max-height: 100%;
    width: auto;
    object-fit: contain;
    transition: var(--transition);
}

.product-card:hover .product-card-image img {
    transform: scale(1.08);
}

.product-placeholder {
    color: #ccc;
    font-size: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.product-card-overlay { display: none; }

/* Compact Detail Button */
.product-btn-detail {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    margin-top: 10px;
    padding: 6px 14px;
    font-size: 11px;
    font-weight: 700;
    color: var(--primary);
    background: rgba(190, 24, 35, 0.08);
    border-radius: 6px;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    transition: var(--transition);
}

.product-card:hover .product-btn-detail {
    background: var(--primary);
    color: var(--white);
}

.product-card-body {
    padding: 16px 14px 18px;
    text-align: center;
}

.product-card-body h3 {
    font-size: 14px;
    font-weight: 800;
    color: var(--color-benefit-title, var(--black));
    margin-bottom: 6px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    line-height: 1.3;
}

.product-card-body p {
    font-size: 12px;
    color: var(--color-body-text, var(--gray));
    line-height: 1.5;
}

/* --- PRODUCT MODAL --- */
.product-modal-overlay {
    position: fixed;
    inset: 0;
    z-index: 9999;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.product-modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.product-modal {
    background: var(--white);
    border-radius: var(--radius-lg);
    max-width: 700px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
    transform: scale(0.9) translateY(30px);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 25px 60px rgba(0,0,0,0.3);
}

.product-modal-overlay.active .product-modal {
    transform: scale(1) translateY(0);
}

.product-modal-close {
    position: absolute;
    top: 16px;
    right: 16px;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: none;
    background: rgba(0,0,0,0.06);
    color: var(--dark-gray);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10;
    transition: var(--transition);
}

.product-modal-close:hover {
    background: var(--primary);
    color: var(--white);
}

.product-modal-image {
    padding: 40px 40px 20px;
    text-align: center;
}

.product-modal-image img {
    max-height: 350px;
    width: auto;
    margin: 0 auto;
    object-fit: contain;
}

.product-modal-body {
    padding: 20px 40px 40px;
    text-align: center;
}

.product-modal-body h2 {
    font-size: 28px;
    font-weight: 800;
    color: var(--black);
    text-transform: uppercase;
    letter-spacing: 1.5px;
    margin-bottom: 16px;
}

.product-modal-body p {
    font-size: 16px;
    color: var(--gray);
    line-height: 1.8;
    margin-bottom: 28px;
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}

.product-modal-body .btn-contact {
    font-size: 14px;
    padding: 14px 32px;
}

/* --- CONTACT --- */
.contact {
    background: var(--primary);
    padding: 80px 0;
}

.contact .section-title h2 { color: var(--white); }
.contact .section-title p { color: rgba(255,255,255,0.8); }

.contact-form {
    max-width: 700px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: 16px 20px;
    border: none;
    border-radius: 8px;
    font-family: 'Montserrat', sans-serif;
    font-size: 14px;
    background: rgba(255,255,255,0.95);
    color: var(--dark-gray);
    transition: var(--transition);
}

.contact-form input::placeholder,
.contact-form textarea::placeholder { color: #999; }

.contact-form input:focus,
.contact-form textarea:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(255,255,255,0.3);
}

.contact-form textarea {
    grid-column: 1 / -1;
    resize: vertical;
    min-height: 100px;
}

.contact-form .btn-submit {
    grid-column: 1 / -1;
    padding: 16px 40px;
    background: var(--black);
    color: var(--white);
    font-family: 'Montserrat', sans-serif;
    font-size: 14px;
    font-weight: 700;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: var(--transition);
}

.contact-form .btn-submit:hover {
    background: var(--dark-gray);
    transform: translateY(-2px);
}

/* --- FOOTER --- */
.footer {
    background: var(--black);
    padding: 60px 0 30px;
    color: var(--color-footer-text, rgba(255,255,255,0.7));
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-brand .footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 20px;
    color: var(--white);
}

.footer-brand .footer-logo-text {
    display: flex;
    flex-direction: column;
    line-height: 1.1;
}

.footer-brand .footer-logo-text span:first-child {
    font-size: 16px;
    font-weight: 800;
    letter-spacing: 2px;
    text-transform: uppercase;
}

.footer-brand .footer-logo-text span:nth-child(2) {
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    opacity: 0.7;
}

.footer-brand .footer-logo-text span:last-child {
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: var(--primary);
}

.footer-brand p {
    font-size: 14px;
    line-height: 1.8;
    margin-bottom: 20px;
}

.footer-social {
    display: flex;
    gap: 12px;
}

.footer-social a {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: rgba(255,255,255,0.1);
    color: var(--white);
    transition: var(--transition);
}

.footer-social a:hover {
    background: var(--primary);
    transform: translateY(-3px);
}

.footer-col h4 {
    font-size: 14px;
    font-weight: 700;
    color: var(--white);
    text-transform: uppercase;
    letter-spacing: 1.5px;
    margin-bottom: 20px;
}

.footer-col ul li { margin-bottom: 10px; }

.footer-col a {
    font-size: 14px;
    color: rgba(255,255,255,0.6);
}

.footer-col a:hover { color: var(--primary); }

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 24px;
    text-align: center;
    font-size: 13px;
}

/* --- ANIMATIONS --- */
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}

.animate-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.animate-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* --- RESPONSIVE --- */
@media (max-width: 1024px) {
    .benefits-grid { grid-template-columns: repeat(2, 1fr); }
    .products-grid { grid-template-columns: repeat(3, 1fr); }
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .custom-section-inner { grid-template-columns: 1fr !important; }
}

@media (max-width: 768px) {
    .nav-links { display: none; }
    .nav-toggle { display: flex; }
    
    .nav-links.active {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 80px;
        left: 0;
        right: 0;
        background: var(--white);
        padding: 24px;
        box-shadow: var(--shadow-lg);
        gap: 16px;
    }

    .benefits-grid { grid-template-columns: 1fr; }
    .products-grid { grid-template-columns: repeat(2, 1fr); }
    .contact-form { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; }
    .steps-grid { gap: 12px; }
    .step-item { flex: 0 0 140px; }
    .hero-content h1 { font-size: 28px; }
    .section { padding: 60px 0; }
    .chat-window { width: calc(100vw - 32px); right: auto; left: 16px; bottom: 80px; }
    .footer-legal { flex-wrap: wrap; }
}

/* --- CUSTOM SECTIONS --- */
.custom-section { padding: 80px 0; background: var(--white); }
.custom-section.cs-dark { background: var(--black); color: var(--white); }
.custom-section.cs-dark h2 { color: var(--white); }
.custom-section.cs-dark .cs-content { color: rgba(255,255,255,0.7); }
.custom-section.cs-gray { background: var(--light-gray); }

.custom-section-inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: center;
}

.cs-image img {
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
}

.cs-text h2 {
    font-size: clamp(24px, 3vw, 36px);
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    margin-bottom: 12px;
    color: var(--color-section-title, var(--black));
}

.cs-subtitle {
    font-size: 16px;
    color: var(--primary);
    font-weight: 600;
    margin-bottom: 16px;
}

.cs-content {
    font-size: 15px;
    line-height: 1.9;
    color: var(--color-body-text, var(--gray));
}

/* --- FOOTER LEGAL --- */
.footer-legal {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 12px;
    padding: 16px 0;
    border-top: 1px solid rgba(255,255,255,0.1);
    margin-bottom: 16px;
}
.footer-legal a {
    color: rgba(255,255,255,0.5);
    font-size: 13px;
    font-weight: 500;
    transition: var(--transition);
}
.footer-legal a:hover { color: var(--primary); }
.footer-legal span { color: rgba(255,255,255,0.2); font-size: 12px; }

/* --- SCROLL TO TOP --- */
.scroll-top {
    position: fixed;
    bottom: 28px;
    right: 28px;
    width: 52px;
    height: 52px;
    border-radius: 14px;
    background: linear-gradient(135deg, #BE1823 0%, #E8363F 100%);
    color: var(--white);
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 6px 20px rgba(190, 24, 35, 0.35);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 900;
}
.scroll-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}
.scroll-top:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 30px rgba(190, 24, 35, 0.5);
    border-radius: 16px;
}

/* --- CHAT WIDGET --- */
.chat-widget { position: fixed; bottom: 24px; left: 24px; z-index: 1000; }

.chat-toggle {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: var(--primary);
    color: var(--white);
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 20px rgba(190, 24, 35, 0.4);
    transition: var(--transition);
    position: relative;
}
.chat-toggle:hover {
    transform: scale(1.08);
    box-shadow: 0 6px 28px rgba(190, 24, 35, 0.5);
}

.chat-badge {
    position: absolute;
    top: -2px;
    right: -2px;
    width: 18px;
    height: 18px;
    background: #22C55E;
    color: #fff;
    font-size: 10px;
    font-weight: 800;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.2); }
}

.chat-window {
    position: absolute;
    bottom: 72px;
    left: 0;
    width: 360px;
    background: var(--white);
    border-radius: 16px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.15);
    overflow: hidden;
    transform: scale(0.9) translateY(10px);
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}
.chat-window.open {
    transform: scale(1) translateY(0);
    opacity: 1;
    visibility: visible;
}

.chat-header {
    background: var(--black);
    color: var(--white);
    padding: 16px 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.chat-header-info {
    display: flex;
    align-items: center;
    gap: 12px;
}
.chat-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
}
.chat-header-info strong { font-size: 14px; display: block; }
.chat-status { font-size: 11px; color: #22C55E; font-weight: 500; }
.chat-close {
    background: none;
    border: none;
    color: rgba(255,255,255,0.6);
    cursor: pointer;
    padding: 4px;
    transition: var(--transition);
}
.chat-close:hover { color: #fff; }

.chat-messages {
    height: 300px;
    overflow-y: auto;
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    background: #f8f9fa;
}

.chat-msg {
    max-width: 80%;
}
.chat-msg p {
    padding: 10px 14px;
    border-radius: 12px;
    font-size: 13px;
    line-height: 1.5;
}
.chat-msg.admin { align-self: flex-start; }
.chat-msg.admin p { background: var(--white); color: var(--dark-gray); border: 1px solid #eee; }
.chat-msg.visitor { align-self: flex-end; }
.chat-msg.visitor p { background: var(--primary); color: var(--white); }

.chat-input-area { padding: 12px; border-top: 1px solid #eee; }
.chat-name-input {
    width: 100%;
    padding: 8px 12px;
    border: 1px solid #e0e0e0;
    border-radius: 8px;
    font-size: 12px;
    font-family: 'Montserrat', sans-serif;
    margin-bottom: 8px;
    outline: none;
    transition: var(--transition);
}
.chat-name-input:focus { border-color: var(--primary); }
.chat-input-row {
    display: flex;
    gap: 8px;
}
.chat-input-row input {
    flex: 1;
    padding: 10px 14px;
    border: 1px solid #e0e0e0;
    border-radius: 8px;
    font-size: 13px;
    font-family: 'Montserrat', sans-serif;
    outline: none;
    transition: var(--transition);
}
.chat-input-row input:focus { border-color: var(--primary); }
.chat-send {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: none;
    background: var(--primary);
    color: var(--white);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    flex-shrink: 0;
}
.chat-send:hover { background: var(--primary-dark); }