/* BASE VARIABLES */
:root {
    --bg-color: #0a0a0a;
    --text-primary: #ededed;
    --text-secondary: #a1a1aa;
    --accent: #ffffff;
    --border-subtle: rgba(255, 255, 255, 0.1);
    --font-main: 'Inter', sans-serif;
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 8rem;
    --spacing-xxl: 12rem;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html {
    scroll-behavior: smooth;
    background-color: var(--bg-color);
    color: var(--text-primary);
    font-family: var(--font-main);
    line-height: 1.6;
}

body { overflow-x: hidden; }

h1, h2, h3, h4 { color: var(--accent); line-height: 1.2; font-weight: 600; }

a { text-decoration: none; color: inherit; transition: all 0.3s ease; }

/* TYPOGRAPHY */
h1 { font-size: clamp(2rem, 5vw, 5rem); font-weight: 800; letter-spacing: -0.02em; }
h2 { font-size: clamp(1.75rem, 4vw, 3.5rem); margin-bottom: var(--spacing-sm); }
h3 { font-size: clamp(1.1rem, 2vw, 1.5rem); margin-bottom: var(--spacing-xs); }
p { color: var(--text-secondary); margin-bottom: var(--spacing-sm); font-weight: 300; }
.large-text { font-size: clamp(1rem, 2vw, 1.25rem); font-weight: 400; color: var(--text-primary); }

/* BUTTONS */
.btn-primary, .btn-secondary {
    display: inline-block;
    padding: 0.8rem 1.5rem;
    font-weight: 600;
    border-radius: 2px;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    font-size: 0.85rem;
    cursor: pointer;
    white-space: nowrap;
}
.btn-primary { background-color: var(--accent); color: var(--bg-color); border: 1px solid var(--accent); }
.btn-primary:hover { background-color: transparent; color: var(--accent); }
.btn-secondary { background-color: transparent; color: var(--accent); border: 1px solid var(--border-subtle); }
.btn-secondary:hover { border-color: var(--accent); }
.cta-large { padding: 1rem 2.5rem; font-size: 1rem; }

/* NAVIGATION */
header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md) 5%;
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    background-color: rgba(10, 10, 10, 0.85);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid transparent;
    transition: all 0.4s ease;
}
header.scrolled { padding: var(--spacing-sm) 5%; border-bottom: 1px solid var(--border-subtle); }

.logo { font-weight: 800; letter-spacing: 2px; font-size: clamp(0.85rem, 1.5vw, 1.1rem); }

nav ul { display: flex; list-style: none; gap: var(--spacing-md); }
nav a { font-weight: 300; font-size: 0.9rem; opacity: 0.7; }
nav a:hover { opacity: 1; }

/* LANGUAGE SWITCHER */
.lang-switcher {
    display: flex;
    align-items: center;
    gap: 0.35rem;
    margin-right: 0.5rem;
}
.lang-btn {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-family: var(--font-main);
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.1em;
    cursor: pointer;
    padding: 3px 5px;
    transition: color 0.2s ease;
    opacity: 0.6;
}
.lang-btn:hover { color: var(--text-primary); opacity: 1; }
.lang-btn.active { color: var(--text-primary); opacity: 1; border-bottom: 1px solid var(--text-primary); }
.lang-sep { color: var(--border-subtle); font-size: 0.7rem; }

/* HAMBURGER */
.hamburger {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    z-index: 1100;
}
.hamburger span {
    display: block;
    width: 24px;
    height: 2px;
    background-color: var(--accent);
    transition: all 0.3s ease;
    transform-origin: center;
}
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* MOBILE NAV */
.mobile-nav {
    display: none;
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100vh;
    background-color: rgba(10, 10, 10, 0.98);
    z-index: 999;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}
.mobile-nav.open { opacity: 1; pointer-events: all; }
.mobile-nav ul { list-style: none; text-align: center; display: flex; flex-direction: column; gap: var(--spacing-md); }
.mobile-nav-link {
    font-size: clamp(1.5rem, 6vw, 2rem);
    font-weight: 600;
    color: var(--text-primary);
    letter-spacing: 2px;
    text-transform: uppercase;
    opacity: 0.7;
    transition: opacity 0.2s ease;
}
.mobile-nav-link:hover { opacity: 1; }

.mobile-lang-switcher {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-top: var(--spacing-lg);
}
.mobile-lang-switcher .lang-btn {
    font-size: 1rem;
    padding: 6px 10px;
    opacity: 0.5;
}
.mobile-lang-switcher .lang-btn.active { opacity: 1; }

/* SECTIONS */
section {
    padding: var(--spacing-xl) 5%;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.section-header { margin-bottom: var(--spacing-lg); max-width: 600px; }
.section-header.centered { text-align: center; margin: 0 auto var(--spacing-lg); }

/* HERO */
#hero {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
    align-items: center;
    padding-top: calc(var(--spacing-xl) + 80px);
    min-height: 100vh;
}
.hero-content { max-width: 600px; }
.hero-subtitle { font-size: clamp(1rem, 2vw, 1.2rem); margin-bottom: var(--spacing-md); }
.hero-tagline { font-size: clamp(0.9rem, 1.5vw, 1rem); opacity: 0.7; margin-top: -0.5rem; margin-bottom: var(--spacing-md); }
.hero-buttons { display: flex; gap: var(--spacing-sm); flex-wrap: wrap; }
.hero-image-container { border-radius: 4px; overflow: hidden; position: relative; }
.hero-video { width: 100%; height: 100%; object-fit: cover; min-height: 400px; display: block; }

/* SEO */
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border-width: 0; }

/* PORTFOLIO */
.portfolio-img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform 0.5s ease; }
.portfolio-item:hover .portfolio-img { transform: scale(1.05); }
.founder-img { width: 100%; height: 100%; object-fit: cover; object-position: center 15%; border-radius: 4px; display: block; min-height: 400px; }

.portfolio-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: var(--spacing-md); }
.portfolio-item { position: relative; aspect-ratio: 4/5; overflow: hidden; cursor: pointer; border-radius: 4px; }
.item-overlay {
    position: absolute; bottom: 0; left: 0; width: 100%;
    padding: var(--spacing-md);
    background: linear-gradient(to top, rgba(0,0,0,0.9), transparent);
    transform: translateY(20px); opacity: 0; transition: all 0.3s ease;
}
.portfolio-item:hover .item-overlay { transform: translateY(0); opacity: 1; }

/* SERVICES */
.services-container { display: grid; grid-template-columns: 1fr 2fr; gap: var(--spacing-lg); }
.services-list { display: flex; flex-direction: column; gap: var(--spacing-md); }
.service-card {
    padding: var(--spacing-md);
    border: 1px solid var(--border-subtle);
    border-radius: 4px;
    background: rgba(255,255,255,0.02);
    transition: transform 0.3s ease, border-color 0.3s ease;
}
.service-card:hover { transform: translateX(8px); border-color: rgba(255,255,255,0.2); }


/* PROCESS — PREMIUM SPLIT LAYOUT */
.process-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: start;
    margin-top: 4rem;
}

@media (max-width: 900px) {
    .process-layout {
        grid-template-columns: 1fr;
    }
    .process-visual-col {
        order: -1;
    }
}

.process-steps-col {
    display: flex;
    flex-direction: column;
    gap: 0;
}

.process-step-item {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 1.5rem;
    padding: 2rem 0;
    border-bottom: 1px solid var(--border-subtle);
    cursor: pointer;
    opacity: 0.3;
    transform: translateX(-8px);
    transition: opacity 0.5s ease, transform 0.5s ease;
}

.process-step-item:first-child {
    border-top: 1px solid var(--border-subtle);
}

.process-step-item.active,
.process-step-item:hover {
    opacity: 1;
    transform: translateX(0);
}

.process-step-meta {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
    padding-top: 0.25rem;
}

.process-step-num {
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.15em;
    color: var(--text-secondary);
    transition: color 0.3s ease;
}

.process-step-item.active .process-step-num,
.process-step-item:hover .process-step-num {
    color: var(--text-primary);
}

.process-progress-bar {
    width: 1px;
    height: 60px;
    background: rgba(255,255,255,0.1);
    position: relative;
    overflow: hidden;
    border-radius: 2px;
}

.process-progress-fill {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 0%;
    background: #fff;
    transition: height 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.process-step-item.active .process-progress-fill {
    height: 100%;
}

.process-step-body h3 {
    font-size: 1.3rem;
    font-weight: 500;
    margin-bottom: 0.6rem;
    letter-spacing: -0.02em;
    color: var(--text-primary);
}

.process-step-body p {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.65;
}

/* Visual Panel */
.process-visual-col {
    position: sticky;
    top: 120px;
}

@media (max-width: 900px) {
    .process-visual-col {
        position: static;
    }
}

.process-visual-panel {
    position: relative;
    width: 100%;
    aspect-ratio: 4/5;
    border-radius: 6px;
    overflow: hidden;
    background: #111;
}

.process-img {
    position: absolute;
    inset: 0;
    opacity: 0;
    transform: scale(1.04);
    transition: opacity 0.7s cubic-bezier(0.4,0,0.2,1), transform 0.7s cubic-bezier(0.4,0,0.2,1);
}

.process-img.active {
    opacity: 1;
    transform: scale(1);
}

.process-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.process-img-label {
    position: absolute;
    bottom: 1.5rem;
    left: 1.5rem;
    font-size: 0.75rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: rgba(255,255,255,0.6);
    background: rgba(0,0,0,0.5);
    padding: 6px 12px;
    border-radius: 3px;
    backdrop-filter: blur(8px);
}

/* UPCOMING / IN PROGRESS */
#upcoming { min-height: auto; }
.upcoming-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: var(--spacing-md); }
.upcoming-card {
    border: 1px solid var(--border-subtle);
    border-radius: 4px;
    overflow: hidden;
    background: rgba(255,255,255,0.02);
    transition: border-color 0.3s ease;
}
.upcoming-card:hover { border-color: rgba(255,255,255,0.2); }
.upcoming-placeholder {
    aspect-ratio: 16/9;
    background: rgba(255,255,255,0.03);
    border-bottom: 1px solid var(--border-subtle);
    display: flex;
    align-items: center;
    justify-content: center;
}
.upcoming-placeholder.open-slot {
    background: rgba(255,255,255,0.05);
    border-bottom-color: rgba(255,255,255,0.15);
}
.upcoming-label {
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--text-secondary);
    font-weight: 500;
    padding: 4px 10px;
    border: 1px solid var(--border-subtle);
    border-radius: 2px;
}
.upcoming-info { padding: var(--spacing-md); }
.upcoming-info h3 { font-size: 1.1rem; margin-bottom: 0.4rem; }
.upcoming-info p { font-size: 0.9rem; margin-bottom: var(--spacing-sm); }
.upcoming-tag {
    display: inline-block;
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-secondary);
    border: 1px solid var(--border-subtle);
    padding: 3px 8px;
    border-radius: 2px;
}
.upcoming-tag.founding { color: var(--accent); border-color: rgba(255,255,255,0.3); }

/* INSTAGRAM */
#instagram { min-height: auto; }
.instagram-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    margin-bottom: var(--spacing-lg);
    gap: var(--spacing-md);
    flex-wrap: wrap;
}
.instagram-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 4px;
    margin-bottom: var(--spacing-sm);
}
.instagram-placeholder {
    aspect-ratio: 1;
    background: rgba(255,255,255,0.03);
    border: 1px solid var(--border-subtle);
    border-radius: 2px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.2s ease;
}
.instagram-placeholder:hover { background: rgba(255,255,255,0.06); }
.instagram-note { font-size: 0.8rem; color: var(--text-secondary); opacity: 0.6; margin-top: var(--spacing-sm); }

/* PRICING */
.founding-banner {
    display: inline-block;
    background: rgba(255,255,255,0.05);
    padding: 0.8rem 1.5rem;
    border-radius: 4px;
    font-size: 0.95rem;
    border: 1px solid rgba(255,255,255,0.1);
    margin-bottom: 0;
    max-width: 600px;
}
.pricing-container { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: var(--spacing-md); max-width: 1200px; margin: 0 auto; }
.pricing-card {
    border: 1px solid var(--border-subtle); border-radius: 4px;
    padding: var(--spacing-lg) var(--spacing-md);
    background: rgba(255,255,255,0.02);
    display: flex; flex-direction: column;
    transition: transform 0.3s ease, border-color 0.3s ease;
}
.pricing-card:hover { transform: translateY(-5px); border-color: rgba(255,255,255,0.2); }
.featured-pricing { background: rgba(255,255,255,0.05); border-color: rgba(255,255,255,0.15); transform: scale(1.02); }
.featured-pricing:hover { transform: scale(1.02) translateY(-5px); }
.pricing-header { text-align: center; border-bottom: 1px solid var(--border-subtle); padding-bottom: var(--spacing-sm); margin-bottom: var(--spacing-md); }
.price-desc { font-size: 0.9rem; min-height: 40px; margin-bottom: var(--spacing-xs); }
.price-amount { font-size: clamp(1.5rem, 3vw, 2rem); color: var(--accent); margin-top: var(--spacing-xs); font-weight: 700; letter-spacing: -0.02em; }
.price-tag { font-size: 0.72rem; text-transform: uppercase; letter-spacing: 1px; color: var(--text-secondary); opacity: 0.7; margin-bottom: 0; margin-top: 0.25rem; }
.pricing-features { list-style: none; flex-grow: 1; margin-bottom: var(--spacing-md); }
.pricing-features li { padding: var(--spacing-xs) 0; color: var(--text-secondary); font-size: 0.95rem; border-bottom: 1px dashed rgba(255,255,255,0.05); }
.pricing-features li:last-child { border-bottom: none; }

/* FAQ */
#faq { min-height: auto; }
.faq-list { max-width: 760px; margin: 0 auto; display: flex; flex-direction: column; gap: 0; }
.faq-item { border-bottom: 1px solid var(--border-subtle); }
.faq-item:first-child { border-top: 1px solid var(--border-subtle); }
.faq-question {
    width: 100%; background: none; border: none; cursor: pointer;
    display: flex; justify-content: space-between; align-items: center;
    padding: var(--spacing-md) 0;
    color: var(--text-primary); font-size: clamp(0.95rem, 1.5vw, 1.1rem);
    font-weight: 500; font-family: var(--font-main); text-align: left;
    transition: opacity 0.2s ease; gap: var(--spacing-sm);
}
.faq-question:hover { opacity: 0.75; }
.faq-icon { font-size: 1.4rem; font-weight: 300; color: var(--text-secondary); flex-shrink: 0; transition: transform 0.3s ease; }
.faq-item.open .faq-icon { transform: rotate(45deg); }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.4s ease, padding 0.3s ease; }
.faq-answer p { padding-bottom: var(--spacing-md); color: var(--text-secondary); font-size: 0.95rem; line-height: 1.7; margin-bottom: 0; }
.faq-item.open .faq-answer { max-height: 300px; }

/* PHILOSOPHY */
.split-layout { display: grid; grid-template-columns: 1fr 1fr; gap: var(--spacing-lg); align-items: center; }
.about-xul { margin-top: var(--spacing-lg); padding-top: var(--spacing-md); border-top: 1px solid var(--border-subtle); }

/* CONTACT */
#contact { text-align: center; min-height: 60vh; }
.contact-sub { max-width: 500px; margin: 0 auto var(--spacing-md); color: var(--text-secondary); }
.cta-buttons { display: flex; justify-content: center; gap: var(--spacing-sm); margin-top: var(--spacing-md); flex-wrap: wrap; }

/* FOOTER */
footer { padding: var(--spacing-md) 5%; border-top: 1px solid var(--border-subtle); color: var(--text-secondary); font-size: 0.85rem; display: flex; justify-content: space-between; }

/* ANIMATIONS */
.reveal-on-scroll { opacity: 0; transform: translateY(30px); transition: all 0.8s cubic-bezier(0.16, 1, 0.3, 1); }
.reveal-on-scroll.is-visible { opacity: 1; transform: translateY(0); }

/* RESPONSIVE — TABLET */
@media (max-width: 1024px) {
    .process-grid { grid-template-columns: 1fr; gap: var(--spacing-md); }
    .process-connector { width: 1px; height: 30px; margin: 0 auto; }
    .instagram-grid { grid-template-columns: repeat(3, 1fr); }
}

/* RESPONSIVE — MOBILE */
@media (max-width: 768px) {
    :root { --spacing-xl: 5rem; --spacing-lg: 2.5rem; }

    #hero {
        grid-template-columns: 1fr;
        padding-top: calc(var(--spacing-lg) + 70px);
        gap: var(--spacing-md);
    }
    .hero-image-container { order: -1; }
    .hero-video { min-height: 260px; }
    .hero-buttons { flex-direction: column; }
    .hero-buttons .btn-primary,
    .hero-buttons .btn-secondary { text-align: center; width: 100%; }

    header nav { display: none; }
    #header-cta { display: none; }
    .hamburger { display: flex; }
    .mobile-nav { display: flex; }

    .services-container { grid-template-columns: 1fr; }
    .split-layout { grid-template-columns: 1fr; }

    /* Portfolio: always show overlay on mobile (no hover on touch) */
    .item-overlay {
        transform: translateY(0);
        opacity: 1;
        background: linear-gradient(to top, rgba(0,0,0,0.85) 60%, transparent);
    }
    /* Disable zoom on touch — feels broken without hover */
    .portfolio-item:hover .portfolio-img { transform: none; }

    /* Process: stack vertically, no sticky, all steps always visible */
    .process-layout { grid-template-columns: 1fr; gap: var(--spacing-md); }
    .process-visual-col { position: static; order: -1; }
    .process-visual-panel { aspect-ratio: 16/9; }
    /* Show all images stacked instead of hidden panels */
    .process-img {
        position: static;
        opacity: 1;
        transform: none;
        display: none;
    }
    .process-img.active { display: block; }
    /* All steps fully visible on mobile */
    .process-step-item {
        opacity: 1;
        transform: translateX(0);
    }

    .portfolio-grid { grid-template-columns: 1fr; }
    .upcoming-grid { grid-template-columns: 1fr; }
    .pricing-container { grid-template-columns: 1fr; }

    .featured-pricing { transform: scale(1); }
    .featured-pricing:hover { transform: translateY(-5px); }

    .instagram-grid { grid-template-columns: repeat(3, 1fr); }
    .instagram-header { flex-direction: column; align-items: flex-start; }

    .cta-buttons { flex-direction: column; align-items: center; }
    .cta-buttons .btn-primary,
    .cta-buttons .btn-secondary { width: 100%; max-width: 320px; text-align: center; }

    footer { flex-direction: column; gap: 0.4rem; text-align: center; }

    section { padding: var(--spacing-lg) 5%; }
    #process, #upcoming, #instagram, #faq { min-height: auto; }

    /* Lang switcher: hide on mobile to save header space */
    .lang-switcher { display: none; }
}

/* =========================================================================
   ABOUT (hidden page) SPECIFICS
========================================================================= */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 5%;
}

.about-hero {
    padding: var(--spacing-xxl) 0 var(--spacing-lg);
}

.about-hero-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    line-height: 1.1;
    margin-bottom: var(--spacing-md);
    letter-spacing: -0.02em;
    color: var(--text-primary);
}

.about-content-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
}

@media (min-width: 992px) {
    .about-content-grid {
        grid-template-columns: 1.2fr 1fr;
        align-items: center;
    }
}

.about-text p {
    margin-bottom: 1.5rem;
    color: var(--text-secondary);
    font-size: 1.1rem;
    line-height: 1.6;
}

.about-text p strong {
    color: var(--text-primary);
}

.personal-masonry-grid {
    column-count: 1;
    column-gap: 1.5rem;
    margin-top: var(--spacing-xl);
}

@media (min-width: 600px) {
    .personal-masonry-grid {
        column-count: 2;
    }
}

@media (min-width: 1024px) {
    .personal-masonry-grid {
        column-count: 3;
    }
}

.personal-masonry-item {
    break-inside: avoid;
    margin-bottom: 1.5rem;
    position: relative;
    border-radius: 4px;
    overflow: hidden;
}

.personal-masonry-item img {
    width: 100%;
    height: auto;
    display: block;
    transition: transform 0.6s ease, opacity 0.5s ease;
}

.personal-masonry-item:hover img {
    transform: scale(1.03);
}

.interest-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 2rem;
}

.interest-tag {
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.1);
    padding: 0.5rem 1rem;
    border-radius: 50px;
    font-size: 0.9rem;
    color: var(--text-primary);
}

/* =========================================================================
   CHAT / QUESTIONNAIRE PAGE
   ========================================================================= */
.chat-page {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.chat-main {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: calc(var(--spacing-xl) + 60px) 5% var(--spacing-lg);
}

.chat-wrapper {
    width: 100%;
    max-width: 600px;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.chat-header {
    text-align: center;
    margin-bottom: var(--spacing-sm);
}

.chat-header h1 {
    font-size: clamp(2rem, 4vw, 3rem);
    margin-bottom: 0.5rem;
}

.chat-header p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.chat-window {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-subtle);
    border-radius: 8px;
    padding: var(--spacing-md);
    min-height: 350px;
    max-height: 50vh;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    position: relative;
    /* scrollbar styling */
    scrollbar-width: thin;
    scrollbar-color: var(--border-subtle) transparent;
}
.chat-window::-webkit-scrollbar { width: 6px; }
.chat-window::-webkit-scrollbar-thumb { background-color: var(--border-subtle); border-radius: 6px; }

.chat-bubble {
    padding: 1rem;
    border-radius: 8px;
    max-width: 85%;
    line-height: 1.4;
    animation: bubbleFadeIn 0.3s ease forwards;
    opacity: 0;
    transform: translateY(10px);
}

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

.chat-bubble.bot {
    align-self: flex-start;
    background: rgba(255, 255, 255, 0.08);
    color: var(--text-primary);
    border-bottom-left-radius: 0;
}

.chat-bubble.user {
    align-self: flex-end;
    background: var(--text-primary);
    color: var(--bg-color);
    border-bottom-right-radius: 0;
}

.chat-controls {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    opacity: 0;
    transform: translateY(10px);
    transition: all 0.3s ease;
}

.chat-controls.visible {
    opacity: 1;
    transform: translateY(0);
}

.chat-btn {
    background: transparent;
    border: 1px solid var(--border-subtle);
    color: var(--text-primary);
    padding: 1rem;
    border-radius: 4px;
    font-size: 0.95rem;
    text-align: left;
    cursor: pointer;
    transition: all 0.2s ease;
    font-family: inherit;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

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

.chat-input-wrapper {
    display: flex;
    gap: 0.5rem;
}

.chat-input {
    flex: 1;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-subtle);
    color: var(--text-primary);
    padding: 1rem;
    border-radius: 4px;
    font-family: inherit;
    font-size: 0.95rem;
}

.chat-input:focus {
    outline: none;
    border-color: var(--text-secondary);
}

.chat-btn-submit {
    background: var(--text-primary);
    color: var(--bg-color);
    border: none;
    padding: 1rem 1.5rem;
    border-radius: 4px;
    font-weight: 500;
    cursor: pointer;
    transition: opacity 0.2s;
}

.chat-btn-submit:hover {
    opacity: 0.9;
}

.typing-indicator {
    display: inline-flex;
    gap: 4px;
    padding: 1.25rem 1.5rem;
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.08);
    align-self: flex-start;
    border-bottom-left-radius: 0;
}

.typing-dot {
    width: 6px;
    height: 6px;
    background: var(--text-secondary);
    border-radius: 50%;
    animation: typingBounce 1.4s infinite ease-in-out both;
}
.typing-dot:nth-child(1) { animation-delay: -0.32s; }
.typing-dot:nth-child(2) { animation-delay: -0.16s; }
@keyframes typingBounce {
    0%, 80%, 100% { transform: scale(0); }
    40% { transform: scale(1); }
}