/* ===== CSS Variables ===== */
:root {
    --bg-primary: #ffffff;
    --bg-secondary: #f8f8f8;
    --text-primary: #1a1a1a;
    --text-secondary: rgba(0, 0, 0, 0.65);
    --accent: #ff4700;
    --accent-glow: rgba(255, 71, 0, 0.25);
    --border-color: rgba(0, 0, 0, 0.08);
    --border-radius: 12px;
    --font-sans: 'DM Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
}

/* Background ambient glows */
body::before {
    content: '';
    position: fixed;
    top: -50%;
    right: -30%;
    width: 80%;
    height: 100%;
    background: radial-gradient(ellipse, rgba(255, 71, 0, 0.06) 0%, transparent 70%);
    pointer-events: none;
    z-index: 0;
}

body::after {
    content: '';
    position: fixed;
    bottom: -30%;
    left: -20%;
    width: 60%;
    height: 80%;
    background: radial-gradient(ellipse, rgba(255, 71, 0, 0.04) 0%, transparent 70%);
    pointer-events: none;
    z-index: 0;
}

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

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

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ===== Header ===== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    padding: 20px 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
    transition: background 0.3s ease;
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-size: 1.35rem;
}

.logo-icon-img {
    width: 40px;
    height: 40px;
    display: block;
}

.logo-text {
    font-weight: 700;
    font-size: 1.35rem;
}

@media (max-width: 480px) {
    .logo-icon-img {
        width: 32px;
        height: 32px;
    }
}

.nav {
    display: flex;
    gap: 32px;
}

.nav-link {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-secondary);
    transition: color 0.2s ease;
}

.nav-link:hover,
.nav-link.active {
    color: var(--accent);
    text-shadow: 0 0 20px var(--accent-glow);
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 6px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.mobile-menu-btn span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
}

body.menu-open {
    overflow: hidden;
}

/* ===== Hero ===== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 140px 0 80px;
    z-index: 1;
}

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

.hero-visual {
    flex-shrink: 0;
}

.hero-robot {
    max-width: 380px;
    height: auto;
}

@media (max-width: 900px) {
    .hero-inner {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-visual {
        order: -1;
        justify-self: center;
    }

    .hero-robot {
        max-width: 280px;
    }

    .hero-actions {
        justify-content: center;
    }

    .hero-desc {
        margin-left: auto;
        margin-right: auto;
    }
}

.hero-glow {
    position: absolute;
    border-radius: 50%;
    filter: blur(120px);
    opacity: 0.5;
    pointer-events: none;
}

.hero-glow-1 {
    top: 10%;
    right: 10%;
    width: 400px;
    height: 400px;
    background: var(--accent-glow);
}

.hero-glow-2 {
    bottom: 20%;
    left: 5%;
    width: 300px;
    height: 300px;
    background: var(--accent-glow);
}

.hero-content {
    position: relative;
    z-index: 2;
}

.hero-title {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 24px;
    letter-spacing: -0.02em;
}

.hero-title-line {
    display: block;
}

.hero-title .highlight {
    color: var(--accent);
    text-shadow: 0 0 30px var(--accent-glow);
}

.hero-desc {
    font-size: 1.2rem;
    color: var(--text-secondary);
    max-width: 520px;
    margin-bottom: 40px;
}

.hero-actions {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.hero-actions-dual {
    gap: 20px;
}

/* ===== About Intro ===== */
.about-intro {
    padding: 80px 0;
    position: relative;
    z-index: 1;
}

.about-intro-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.about-intro-text {
    font-size: 1.15rem;
    color: var(--text-secondary);
    line-height: 1.8;
}

.about-intro-grid {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 48px;
    align-items: center;
}

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

@media (max-width: 768px) {
    .about-intro-grid {
        grid-template-columns: 1fr;
    }

    .about-intro-visual {
        order: -1;
        text-align: center;
    }

    .about-robot {
        max-width: 260px;
        margin: 0 auto;
    }
}

/* ===== Value Proposition ===== */
.value-proposition {
    padding: 80px 0;
    position: relative;
    z-index: 1;
}

.value-prop-visual {
    text-align: center;
    margin-bottom: 48px;
}

.value-prop-visual img {
    max-width: 320px;
    height: auto;
}

.value-prop-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 32px;
}

.value-prop-item {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 40px;
    transition: all 0.3s ease;
}

.value-prop-item:hover {
    border-color: rgba(255, 71, 0, 0.2);
}

.value-prop-item h3 {
    font-size: 1.25rem;
    margin-bottom: 12px;
    background: var(--accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.value-prop-item p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* ===== Video Section ===== */
.video-section {
    padding: 80px 0 100px;
    position: relative;
    z-index: 1;
}

.video-wrapper {
    max-width: 800px;
    margin: 0 auto;
}

.video-placeholder {
    aspect-ratio: 16/9;
    background: var(--bg-secondary);
    border: 2px dashed var(--border-color);
    border-radius: var(--border-radius);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 8px;
    color: var(--text-secondary);
}

.video-placeholder-note {
    font-size: 0.85rem;
    opacity: 0.7;
}

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 28px;
    font-size: 1rem;
    font-weight: 600;
    border-radius: var(--border-radius);
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: var(--accent);
    color: #ffffff;
    box-shadow: 0 0 30px var(--accent-glow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 40px var(--accent-glow);
}

.btn-outline {
    background: transparent;
    color: var(--text-primary);
    border: 2px solid var(--border-color);
}

.btn-outline:hover {
    border-color: var(--accent);
    color: var(--accent);
    box-shadow: 0 0 20px var(--accent-glow);
}

.btn-full {
    width: 100%;
}

.btn-small {
    padding: 10px 20px;
    font-size: 0.9rem;
}

/* ===== Features ===== */
.features {
    padding: 100px 0;
    position: relative;
    z-index: 1;
}

.section-title {
    font-size: 2rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 56px;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 32px;
}

.feature-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 40px 32px;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--accent);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.feature-card:hover {
    border-color: rgba(255, 71, 0, 0.2);
    box-shadow: 0 0 40px rgba(255, 71, 0, 0.1);
}

.feature-card:hover::before {
    opacity: 1;
}

.feature-icon {
    width: 48px;
    height: 48px;
    border-radius: 10px;
    margin-bottom: 24px;
    background: var(--accent);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #ffffff;
}

.feature-icon svg {
    width: 24px;
    height: 24px;
}

.feature-card h3 {
    font-size: 1.25rem;
    margin-bottom: 12px;
}

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

/* ===== Page Hero (inner pages) ===== */
.page-hero {
    position: relative;
    padding: 160px 0 80px;
    text-align: center;
    z-index: 1;
}

.page-hero-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, var(--accent-glow) 0%, transparent 60%);
    filter: blur(100px);
    opacity: 0.4;
}

.page-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    margin-bottom: 12px;
}

.page-title-accent {
    color: var(--accent);
    text-shadow: 0 0 30px var(--accent-glow);
}

.page-subtitle {
    color: var(--text-secondary);
    font-size: 1.1rem;
}

.page-hero-with-robot .page-hero-content {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 48px;
    align-items: center;
}

.page-hero-robot img {
    max-width: 300px;
    height: auto;
}

@media (max-width: 768px) {
    .page-hero-with-robot .page-hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .page-hero-robot {
        order: -1;
    }

    .page-hero-robot img {
        max-width: 220px;
        margin: 0 auto;
    }
}

.about-story-grid {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 48px;
    align-items: center;
    margin-bottom: 48px;
}

.about-page-robot {
    max-width: 280px;
    height: auto;
}

@media (max-width: 768px) {
    .about-story-grid {
        grid-template-columns: 1fr;
    }

    .about-story-visual {
        text-align: center;
    }

    .about-page-robot {
        max-width: 220px;
        margin: 0 auto;
    }
}

/* ===== Content Section ===== */
.content-section {
    padding: 60px 0 100px;
    position: relative;
    z-index: 1;
}

/* ===== Mission & Vision ===== */
.mission-vision-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 40px;
    margin-bottom: 80px;
}

.mv-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 48px 40px;
    position: relative;
    overflow: hidden;
}

.mv-card-mission { border-left: 4px solid var(--accent); }
.mv-card-vision { border-left: 4px solid var(--accent); }

.mv-icon {
    width: 48px;
    height: 48px;
    margin-bottom: 24px;
    border-radius: 10px;
    background: var(--accent);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    box-shadow: 0 0 20px var(--accent-glow);
}

.mv-icon svg {
    width: 24px;
    height: 24px;
}

.mv-card h2 {
    font-size: 1.5rem;
    margin-bottom: 16px;
}

.mv-card p {
    color: var(--text-secondary);
    font-size: 1rem;
    line-height: 1.7;
}

/* Values */
.values-section {
    margin-top: 60px;
}

.values-section .section-title {
    margin-bottom: 48px;
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 32px;
}

.value-item {
    text-align: center;
    padding: 32px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    transition: all 0.3s ease;
}

.value-item:hover {
    border-color: rgba(255, 71, 0, 0.2);
}

.value-number {
    font-size: 2rem;
    font-weight: 800;
    background: var(--accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 16px;
}

.value-icon {
    width: 48px;
    height: 48px;
    margin: 0 auto 16px;
    border-radius: 10px;
    background: var(--accent);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    box-shadow: 0 0 20px var(--accent-glow);
}

.value-icon svg {
    width: 24px;
    height: 24px;
}

.value-item h3 {
    font-size: 1.15rem;
    margin-bottom: 8px;
}

.value-item p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* ===== Algorithms ===== */
.algorithms-intro {
    max-width: 700px;
    margin: 0 auto 56px;
    text-align: center;
    color: var(--text-secondary);
    font-size: 1.1rem;
}

.algorithms-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 32px;
}

.algorithm-card {
    position: relative;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 40px 32px;
    transition: all 0.3s ease;
}

.algorithm-card:hover {
    border-color: rgba(255, 71, 0, 0.3);
    box-shadow: 0 0 40px rgba(255, 71, 0, 0.1);
}

.algorithm-connector {
    position: absolute;
    top: 24px;
    left: 24px;
    width: 40px;
    height: 2px;
    background: var(--accent);
    opacity: 0.6;
}

.algorithm-connector-1,
.algorithm-connector-2,
.algorithm-connector-3,
.algorithm-connector-4 { background: var(--accent); }

.algorithm-icon {
    width: 48px;
    height: 48px;
    margin-bottom: 24px;
}

.algorithm-icon span {
    display: block;
    width: 100%;
    height: 100%;
    background: var(--accent);
    border-radius: 10px;
    box-shadow: 0 0 20px var(--accent-glow);
}

.algorithm-card h3 {
    font-size: 1.2rem;
    margin-bottom: 12px;
}

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

.cta-section {
    margin-top: 80px;
    text-align: center;
    padding: 60px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
}

.cta-section h2 {
    font-size: 1.5rem;
    margin-bottom: 12px;
}

.cta-section p {
    color: var(--text-secondary);
    margin-bottom: 24px;
}

/* ===== Page Intro ===== */
.page-intro {
    max-width: 700px;
    margin-bottom: 48px;
}

.page-intro p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    line-height: 1.8;
}

/* ===== About Story ===== */
.about-story {
    margin-bottom: 48px;
}

.about-story h2 {
    font-size: 1.5rem;
    margin-bottom: 16px;
}

.about-story p {
    color: var(--text-secondary);
    line-height: 1.8;
}

/* ===== Why MatKod ===== */
.why-matkod {
    margin-top: 60px;
}

.why-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 32px;
}

.why-item {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 32px;
}

.why-item-solution {
    border-left: 4px solid var(--accent);
}

.why-item h3 {
    font-size: 1.2rem;
    margin-bottom: 16px;
}

.why-item ul {
    color: var(--text-secondary);
    padding-left: 20px;
}

.why-item li {
    margin-bottom: 8px;
}

/* ===== Team ===== */
.team-section {
    margin-top: 60px;
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 32px;
}

.team-card {
    text-align: center;
    padding: 32px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
}

.team-avatar {
    width: 80px;
    height: 80px;
    margin: 0 auto 16px;
    border-radius: 50%;
    background: var(--accent);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    box-shadow: 0 0 20px var(--accent-glow);
}

.team-avatar svg {
    width: 36px;
    height: 36px;
}

.team-card h3 {
    font-size: 1.1rem;
    margin-bottom: 8px;
}

.team-card p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* ===== Process ===== */
.process-section {
    margin-top: 48px;
}

.process-list {
    max-width: 600px;
    padding-left: 24px;
    color: var(--text-secondary);
}

.process-list li {
    margin-bottom: 16px;
    line-height: 1.6;
}

/* ===== Earnings ===== */
.earnings-section {
    margin-top: 48px;
}

.earnings-content p {
    color: var(--text-secondary);
    margin-bottom: 16px;
}

.earnings-content ul {
    color: var(--text-secondary);
    padding-left: 20px;
}

.earnings-content li {
    margin-bottom: 8px;
}

/* ===== Student extra ===== */
.student-features-extra {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 24px;
    margin-top: 48px;
}

.extra-item {
    padding: 24px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
}

.extra-item h3 {
    font-size: 1.1rem;
    margin-bottom: 8px;
}

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

/* ===== Testimonials ===== */
.testimonials {
    margin-top: 60px;
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
}

.testimonial-card {
    padding: 32px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    font-style: italic;
    border-left: 4px solid var(--accent);
}

.testimonial-card p {
    color: var(--text-secondary);
    margin: 0;
}

/* ===== AI Tech ===== */
.ai-tech-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 32px;
}

.ai-tech-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 40px;
}

.ai-tech-card h2 {
    font-size: 1.25rem;
    margin-bottom: 12px;
}

.ai-tech-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* ===== Tech Stack ===== */
.tech-stack {
    margin-top: 60px;
}

.tech-stack-list {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.tech-badge {
    padding: 10px 20px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 0.95rem;
}

/* ===== Flow Diagram ===== */
.studio-flow {
    margin-bottom: 48px;
}

.flow-diagram {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    gap: 16px;
    padding: 32px;
}

.flow-step {
    padding: 16px 24px;
    background: var(--bg-secondary);
    border: 1px solid rgba(255, 71, 0, 0.3);
    border-radius: 8px;
    font-weight: 600;
}

.flow-arrow {
    color: var(--accent);
    font-size: 1.5rem;
}

.studio-intro {
    margin-bottom: 48px;
}

.studio-intro p {
    font-size: 1.1rem;
    color: var(--text-secondary);
}

/* ===== Teacher Cards (Marketplace) ===== */
.teacher-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
}

.teacher-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 32px;
}

.teacher-card-header {
    display: flex;
    gap: 16px;
    margin-bottom: 16px;
}

.teacher-avatar {
    width: 56px;
    height: 56px;
    min-width: 56px;
    border-radius: 50%;
    background: var(--accent);
    opacity: 0.8;
}

.ai-score {
    font-size: 0.9rem;
    color: var(--accent);
}

.teacher-desc {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 16px;
}

.teacher-meta {
    display: flex;
    justify-content: space-between;
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 20px;
}

.marketplace-intro,
.marketplace-note {
    text-align: center;
    color: var(--text-secondary);
    margin-bottom: 32px;
}

/* ===== FAQ ===== */
.faq-section {
    margin-bottom: 48px;
}

.faq-category-title {
    font-size: 1.35rem;
    margin-bottom: 24px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border-color);
}

.faq-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.faq-item {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    overflow: hidden;
}

.faq-item summary {
    padding: 20px 24px;
    cursor: pointer;
    font-weight: 600;
    list-style: none;
}

.faq-item summary::-webkit-details-marker { display: none; }

.faq-item[open] summary {
    border-bottom: 1px solid var(--border-color);
}

.faq-item p {
    padding: 20px 24px;
    color: var(--text-secondary);
    margin: 0;
}

/* ===== Blog ===== */
.blog-categories {
    margin-bottom: 48px;
}

.category-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.category-tag {
    padding: 8px 16px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    font-size: 0.9rem;
    color: var(--text-secondary);
    transition: all 0.2s;
}

.category-tag:hover,
.category-tag.active {
    border-color: var(--accent);
    color: var(--accent);
}

.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 32px;
}

.blog-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    overflow: hidden;
}

.blog-card-image {
    height: 180px;
    background: linear-gradient(135deg, rgba(255,71,0,0.2) 0%, rgba(255,71,0,0.1) 100%);
    overflow: hidden;
}

.blog-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.blog-card-content {
    padding: 24px;
}

.blog-category {
    font-size: 0.8rem;
    color: var(--accent);
    margin-bottom: 8px;
}

.blog-card h3 {
    font-size: 1.15rem;
    margin-bottom: 8px;
}

.blog-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 12px;
}

.blog-link {
    font-size: 0.9rem;
    color: var(--accent);
}

.blog-link:hover {
    text-decoration: underline;
}

.blog-note,
.blog-setup-note {
    text-align: center;
    color: var(--text-secondary);
    margin-top: 32px;
}

.blog-setup-note {
    background: #fff3e0;
    border: 1px solid rgba(255, 71, 0, 0.3);
    padding: 24px;
    border-radius: var(--border-radius);
}

.blog-setup-note code {
    background: rgba(0,0,0,0.06);
    padding: 2px 8px;
    border-radius: 4px;
}

/* ===== Contact Map ===== */
.contact-map {
    margin-top: 60px;
}

.contact-map h3 {
    margin-bottom: 16px;
}

.map-embed-wrap {
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.map-link {
    display: inline-block;
    margin-top: 16px;
    color: var(--accent);
    font-weight: 500;
}

.map-link:hover {
    text-decoration: underline;
}

.map-placeholder {
    height: 300px;
    background: var(--bg-secondary);
    border: 2px dashed var(--border-color);
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
}

.support-channels {
    margin-top: 32px;
}

.support-channels h3 {
    font-size: 1.1rem;
    margin-bottom: 8px;
}

.social-links {
    display: flex;
    gap: 16px;
    margin-bottom: 20px;
}

.social-links a {
    color: var(--accent);
    font-weight: 500;
}

.social-links a:hover {
    text-decoration: underline;
}

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

/* ===== Legal ===== */
.legal-content {
    max-width: 800px;
    margin: 0 auto;
}

.legal-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    margin-bottom: 48px;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--border-color);
}

.legal-nav a {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.legal-nav a:hover {
    color: var(--accent);
}

.legal-block {
    margin-bottom: 48px;
}

.legal-block h2 {
    font-size: 1.35rem;
    margin-bottom: 16px;
}

.legal-block p {
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 12px;
}

.legal-block a {
    color: var(--accent);
}

/* ===== Demo ===== */
.demo-intro {
    margin-bottom: 48px;
}

.demo-intro p {
    font-size: 1.1rem;
    color: var(--text-secondary);
}

.demo-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: start;
}

.demo-info-cards {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.demo-info-card {
    padding: 24px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
}

.demo-info-card h3 {
    font-size: 1.1rem;
    margin-bottom: 8px;
}

.demo-info-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* ===== Press ===== */
.press-intro {
    margin-bottom: 48px;
}

.press-intro p {
    color: var(--text-secondary);
}

.press-sections {
    display: flex;
    flex-direction: column;
    gap: 40px;
}

.press-section h2 {
    font-size: 1.25rem;
    margin-bottom: 12px;
}

.press-section p,
.press-section ul {
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.press-section a {
    color: var(--accent);
}

/* ===== Algorithms Page ===== */
.algorithms-intro-text {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 48px;
    color: var(--text-secondary);
    font-size: 1.1rem;
}

.algorithm-list {
    display: flex;
    flex-direction: column;
    gap: 32px;
}

.algorithm-item {
    display: flex;
    gap: 24px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 32px;
    transition: border-color 0.3s ease;
}

.algorithm-item:hover {
    border-color: rgba(255, 71, 0, 0.2);
}

.algorithm-number {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 800;
    font-size: 1.25rem;
}

.algorithm-body {
    flex: 1;
}

.algorithm-body h2 {
    font-size: 1.2rem;
    margin-bottom: 12px;
}

.algorithm-body p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 8px;
    line-height: 1.6;
}

.algorithm-body ul {
    color: var(--text-secondary);
    padding-left: 20px;
    margin: 12px 0;
}

.algorithm-body li {
    margin-bottom: 6px;
}

.algorithm-body code {
    background: #f0f0f0;
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 0.9em;
}

.algorithm-usage {
    font-size: 0.9rem !important;
    opacity: 0.9;
}

.code-block {
    margin: 16px 0 0;
    padding: 16px 20px;
    background: #f5f5f5;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    overflow-x: auto;
}

.code-block code {
    font-family: 'SF Mono', Monaco, 'Cascadia Code', monospace;
    font-size: 0.9rem;
    color: var(--accent);
    background: none !important;
    padding: 0 !important;
}

.algorithms-summary {
    margin-top: 64px;
    padding: 48px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    text-align: center;
}

.algorithms-summary h2 {
    font-size: 1.5rem;
    margin-bottom: 24px;
}

.algorithm-tags {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 12px;
}

.algorithm-tags span {
    padding: 8px 16px;
    background: #f5f5f5;
    border: 1px solid var(--border-color);
    border-radius: 20px;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

@media (max-width: 640px) {
    .algorithm-item {
        flex-direction: column;
        gap: 16px;
    }

    .algorithm-number {
        width: 40px;
        height: 40px;
        font-size: 1rem;
    }
}

/* ===== Contact ===== */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: start;
}

.contact-info h2 {
    font-size: 1.75rem;
    margin-bottom: 16px;
}

.contact-info > p {
    color: var(--text-secondary);
    margin-bottom: 40px;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 28px;
}

.contact-item {
    display: flex;
    gap: 20px;
    align-items: flex-start;
}

.contact-icon {
    width: 48px;
    height: 48px;
    min-width: 48px;
    border-radius: 10px;
    background: var(--accent);
    box-shadow: 0 0 20px var(--accent-glow);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #ffffff;
}

.contact-icon svg {
    width: 24px;
    height: 24px;
}

.contact-item strong {
    display: block;
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 4px;
}

.contact-item a,
.contact-item address {
    color: var(--text-primary);
    font-style: normal;
}

.contact-item a:hover {
    color: var(--accent);
}

.contact-form {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 48px;
}

.contact-form h3 {
    font-size: 1.35rem;
    margin-bottom: 32px;
}

.form-group {
    margin-bottom: 24px;
}

.form-group label {
    display: block;
    font-size: 0.9rem;
    font-weight: 500;
    margin-bottom: 8px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 14px 18px;
    background: #fafafa;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    font-family: inherit;
    font-size: 1rem;
    transition: border-color 0.2s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(255, 71, 0, 0.1);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: rgba(0, 0, 0, 0.4);
}

/* ===== Footer ===== */
.footer {
    position: relative;
    z-index: 1;
    margin-top: 80px;
    padding: 80px 0 0;
    background: linear-gradient(180deg, var(--bg-secondary) 0%, #f0f0f0 100%);
    border-top: 1px solid var(--border-color);
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 20%;
    right: 20%;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255, 71, 0, 0.5), transparent);
    opacity: 0.8;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.4fr repeat(3, 1fr);
    gap: 56px;
    margin-bottom: 56px;
}

.footer-brand {
    max-width: 280px;
}

.footer-brand .footer-logo {
    display: inline-flex;
    margin-bottom: 20px;
}

.footer-tagline {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
    opacity: 0.9;
}

.footer-social {
    display: flex;
    gap: 16px;
    margin-top: 16px;
}

.footer-social a {
    color: var(--accent);
    font-size: 0.9rem;
}

.footer-social a:hover {
    text-decoration: underline;
}

.footer-links-group {
    padding: 8px 0;
}

.footer-links-group h4 {
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    margin-bottom: 20px;
    color: var(--text-primary);
    position: relative;
    padding-bottom: 12px;
}

.footer-links-group h4::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 24px;
    height: 2px;
    background: var(--accent);
    border-radius: 2px;
}

.footer-links-group a {
    display: block;
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 12px;
    transition: all 0.2s ease;
}

.footer-links-group a:hover {
    color: var(--accent);
    transform: translateX(4px);
}

.footer-bottom {
    padding: 32px 0 40px;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
}

.footer-bottom p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin: 0;
}

.footer-bottom-links {
    display: flex;
    gap: 24px;
}

.footer-bottom-links a {
    color: var(--text-secondary);
    font-size: 0.85rem;
    transition: color 0.2s ease;
}

.footer-bottom-links a:hover {
    color: var(--accent);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 24px;
}

.footer-content p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.footer-links {
    display: flex;
    gap: 24px;
}

.footer-links a {
    color: var(--text-secondary);
    font-size: 0.9rem;
    transition: color 0.2s ease;
}

.footer-links a:hover {
    color: var(--accent);
}

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

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

/* ===== Responsive ===== */
@media (max-width: 900px) {
    .contact-grid {
        grid-template-columns: 1fr;
    }

    .nav {
        display: none;
    }

    .nav.open {
        display: flex;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        flex-direction: column;
        background: #ffffff;
        padding: 24px;
        gap: 16px;
    }

    .mobile-menu-btn {
        display: flex;
    }
}

@media (max-width: 640px) {
    .hero-actions {
        flex-direction: column;
    }

    .btn {
        width: 100%;
    }

    .footer-content {
        flex-direction: column;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .footer-brand {
        max-width: none;
    }

    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }

    .demo-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 1100px) {
    .nav {
        gap: 20px;
        font-size: 0.9rem;
    }
}