/* CSS Variables */
:root {
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --accent: #06b6d4;
    --dark: #0f172a;
    --gray-900: #1e293b;
    --gray-700: #334155;
    --gray-500: #64748b;
    --gray-300: #cbd5e1;
    --gray-100: #f1f5f9;
    --white: #ffffff;
    --gradient: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    color: var(--gray-900);
    line-height: 1.6;
}

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

h1, h2, h3 {
    line-height: 1.2;
    font-weight: 700;
}

h1 { font-size: 3.5rem; }
h2 { font-size: 2.5rem; margin-bottom: 1rem; }
h3 { font-size: 1.5rem; }

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

.section-subtitle {
    font-size: 1.25rem;
    color: var(--gray-500);
    margin-bottom: 3rem;
    text-align: center;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 24px;
    border-radius: 8px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: var(--gradient);
    color: var(--white);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(37, 99, 235, 0.3);
}

.btn-secondary {
    background: var(--white);
    color: var(--primary);
    border: 2px solid var(--primary);
}

.btn-secondary:hover {
    background: var(--primary);
    color: var(--white);
}

.btn-large {
    padding: 16px 32px;
    font-size: 1.1rem;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    padding: 16px 0;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--dark);
}

.logo-img {
    height: 45px;
    width: auto;
}

.logo-text {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--dark);
    letter-spacing: -0.5px;
}

.logo-icon { font-size: 2rem; }

.nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
    list-style: none;
}

.nav-links a {
    text-decoration: none;
    color: var(--gray-700);
    font-weight: 500;
    transition: color 0.3s;
}

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

/* Hero Section */
.hero {
    padding: 160px 0 100px;
    background: linear-gradient(180deg, var(--gray-100) 0%, var(--white) 100%);
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero h1 {
    margin-bottom: 24px;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--gray-500);
    margin-bottom: 32px;
}

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

.robot-showcase {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.robot-card {
    background: var(--white);
    padding: 12px 20px;
    border-radius: 12px;
    font-size: 1rem;
    font-weight: 600;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    transform: translateX(0);
    transition: transform 0.3s ease;
    display: flex;
    align-items: center;
    gap: 12px;
    max-height: 70px !important;
    overflow: hidden !important;
}

.robot-card img {
    width: 45px !important;
    height: 45px !important;
    max-width: 45px !important;
    max-height: 45px !important;
    object-fit: contain;
    flex-shrink: 0;
}

.robot-card span {
    flex: 1;
    white-space: nowrap;
}

.robot-card:hover {
    transform: translateX(10px);
}

.robot-card:nth-child(1) { border-left: 4px solid var(--primary); }
.robot-card:nth-child(2) { border-left: 4px solid var(--accent); }
.robot-card:nth-child(3) { border-left: 4px solid #8b5cf6; }

/* About Section */
.about {
    padding: 100px 0;
}

.about-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 60px;
    align-items: start;
}

.about-text p {
    margin-bottom: 24px;
    color: var(--gray-700);
    font-size: 1.1rem;
}

.features-list {
    list-style: none;
}

.features-list li {
    padding: 8px 0;
    font-size: 1.1rem;
}

.about-stats {
    display: grid;
    gap: 16px;
}

.stat-card {
    background: var(--gradient);
    color: var(--white);
    padding: 32px;
    border-radius: 16px;
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 3rem;
    font-weight: 700;
}

.stat-label {
    font-size: 1rem;
    opacity: 0.9;
}

/* Robots Section */
.robots {
    padding: 100px 0;
    background: var(--gray-100);
}

.robots h2 {
    text-align: center;
}

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

.robot-detail-card {
    background: var(--white);
    padding: 40px 32px;
    border-radius: 20px;
    text-align: center;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
    transition: transform 0.3s, box-shadow 0.3s;
}

.robot-detail-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.12);
}

.robot-image {
    margin-bottom: 20px;
    min-height: 140px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.robot-image img {
    width: auto;
    height: 130px;
    max-width: 200px;
    object-fit: contain;
}

.robot-emoji {
    font-size: 4rem;
    margin-bottom: 20px;
}

.robot-detail-card h3 {
    margin-bottom: 12px;
    color: var(--dark);
}

.robot-detail-card p {
    color: var(--gray-500);
    margin-bottom: 20px;
}

.robot-features {
    list-style: none;
    text-align: left;
}

.robot-features li {
    padding: 8px 0;
    padding-left: 24px;
    position: relative;
    color: var(--gray-700);
}

.robot-features li::before {
    content: "→";
    position: absolute;
    left: 0;
    color: var(--accent);
}

/* Services Section */
.services {
    padding: 100px 0;
}

.services h2 {
    text-align: center;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.service-card {
    padding: 32px 24px;
    border-radius: 16px;
    background: var(--white);
    border: 1px solid var(--gray-300);
    transition: all 0.3s;
}

.service-card:hover {
    border-color: var(--primary);
    box-shadow: 0 8px 30px rgba(37, 99, 235, 0.1);
}

.service-icon {
    font-size: 2.5rem;
    margin-bottom: 16px;
    display: block;
}

.service-card h3 {
    margin-bottom: 12px;
}

.service-card p {
    color: var(--gray-500);
    margin-bottom: 16px;
}

.service-duration {
    display: inline-block;
    background: var(--gray-100);
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 0.85rem;
    color: var(--gray-700);
}

/* Contact Section */
.contact {
    padding: 100px 0;
    background: var(--dark);
    color: var(--white);
}

.contact h2 {
    text-align: center;
}

.contact .section-subtitle {
    color: var(--gray-300);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 60px;
}

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

.contact-item {
    display: flex;
    align-items: center;
    gap: 16px;
}

.contact-icon {
    font-size: 2rem;
}

.contact-item strong {
    display: block;
    margin-bottom: 4px;
}

.contact-item a {
    color: var(--accent);
    text-decoration: none;
}

.contact-item a:hover {
    text-decoration: underline;
}

.contact-form {
    display: grid;
    gap: 16px;
}

.contact-form input,
.contact-form textarea {
    padding: 16px;
    border: 1px solid var(--gray-700);
    border-radius: 8px;
    background: var(--gray-900);
    color: var(--white);
    font-size: 1rem;
    font-family: inherit;
}

.contact-form input::placeholder,
.contact-form textarea::placeholder {
    color: var(--gray-500);
}

.contact-form input:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: var(--accent);
}

/* Footer */
.footer {
    background: var(--gray-900);
    color: var(--gray-300);
    padding: 60px 0 30px;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: 30px;
    border-bottom: 1px solid var(--gray-700);
}

.footer-brand {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-logo {
    max-height: 80px;
    max-width: 200px;
    width: auto;
    height: auto;
    object-fit: contain;
}

.footer-brand .logo-text {
    color: var(--white);
}

.footer-links {
    display: flex;
    gap: 32px;
}

.footer-links a {
    color: var(--gray-300);
    text-decoration: none;
    transition: color 0.3s;
}

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

.footer-bottom {
    padding-top: 24px;
    text-align: center;
    font-size: 0.9rem;
}

/* Robot Link Card */
.robot-link {
    text-decoration: none;
    color: inherit;
    display: block;
    cursor: pointer;
}

.robot-link .learn-more {
    display: inline-block;
    margin-top: 16px;
    color: var(--primary);
    font-weight: 600;
    transition: transform 0.3s;
}

.robot-link:hover .learn-more {
    transform: translateX(5px);
}

/* ==============================
   ROBOT DETAIL PAGES
   ============================== */

/* Back Link */
.back-link {
    display: inline-block;
    color: var(--gray-500);
    text-decoration: none;
    margin-bottom: 24px;
    font-weight: 500;
    transition: color 0.3s;
}

.back-link:hover {
    color: var(--primary);
}

/* Robot Hero */
.robot-hero {
    padding: 140px 0 80px;
    background: linear-gradient(180deg, var(--gray-100) 0%, var(--white) 100%);
}

.robot-hero-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.robot-hero-image {
    display: flex;
    align-items: center;
    justify-content: center;
}

.robot-hero-image img {
    max-width: 100%;
    max-height: 400px;
    object-fit: contain;
    border-radius: 16px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.1);
}

.robot-tag {
    display: inline-block;
    background: var(--primary);
    color: var(--white);
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 16px;
}

.robot-tag-purple {
    background: #8b5cf6;
}

.robot-tag-cyan {
    background: var(--accent);
}

.robot-hero-content h1 {
    margin-bottom: 16px;
    font-size: 3rem;
}

.robot-tagline {
    font-size: 1.25rem;
    color: var(--gray-500);
    margin-bottom: 32px;
}

.robot-quick-stats {
    display: flex;
    gap: 32px;
    margin-bottom: 32px;
}

.quick-stat {
    text-align: center;
}

.quick-stat .stat-value {
    display: block;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
}

.quick-stat .stat-name {
    font-size: 0.9rem;
    color: var(--gray-500);
}

/* Robot Description */
.robot-description {
    padding: 80px 0;
}

.description-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 60px;
}

.description-main h2 {
    margin-bottom: 24px;
}

.description-main h3 {
    margin-top: 40px;
    margin-bottom: 20px;
}

.description-main p {
    color: var(--gray-700);
    font-size: 1.1rem;
    margin-bottom: 20px;
    line-height: 1.8;
}

.learning-points {
    list-style: none;
}

.learning-points li {
    padding: 12px 0;
    padding-left: 28px;
    position: relative;
    color: var(--gray-700);
    font-size: 1.05rem;
    line-height: 1.6;
}

.learning-points li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--accent);
    font-weight: bold;
}

/* Spec Card */
.spec-card {
    background: var(--white);
    border-radius: 16px;
    padding: 32px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    margin-bottom: 24px;
}

.spec-card h4 {
    margin-bottom: 20px;
    color: var(--dark);
}

.spec-list {
    list-style: none;
}

.spec-list li {
    display: flex;
    justify-content: space-between;
    padding: 12px 0;
    border-bottom: 1px solid var(--gray-100);
}

.spec-list li:last-child {
    border-bottom: none;
}

.spec-label {
    color: var(--gray-500);
}

.spec-value {
    font-weight: 600;
    color: var(--dark);
    text-align: right;
}

/* Highlight Card */
.highlight-card {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: var(--white);
    border-radius: 16px;
    padding: 24px;
}

.highlight-card h4 {
    margin-bottom: 12px;
}

.highlight-card p {
    opacity: 0.9;
    line-height: 1.6;
}

.highlight-cyan {
    background: linear-gradient(135deg, var(--accent) 0%, #0891b2 100%);
}

/* Robot Capabilities */
.robot-capabilities {
    padding: 80px 0;
    background: var(--gray-100);
}

.robot-capabilities h2 {
    text-align: center;
}

.capabilities-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.capability-card {
    background: var(--white);
    padding: 32px;
    border-radius: 16px;
    text-align: center;
    transition: transform 0.3s, box-shadow 0.3s;
}

.capability-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.1);
}

.capability-icon {
    font-size: 3rem;
    margin-bottom: 16px;
    display: block;
}

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

.capability-card p {
    color: var(--gray-500);
    font-size: 0.95rem;
}

/* Grade Levels */
.grade-levels {
    padding: 80px 0;
}

.grade-levels h2 {
    text-align: center;
    margin-bottom: 48px;
}

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

.grade-card {
    padding: 32px;
    border-radius: 16px;
    background: var(--white);
    border: 2px solid var(--gray-300);
    transition: border-color 0.3s;
}

.grade-card:hover {
    border-color: var(--primary);
}

.grade-badge {
    display: inline-block;
    background: var(--gradient);
    color: var(--white);
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 12px;
}

.grade-card h3 {
    margin-bottom: 16px;
}

.grade-card ul {
    list-style: none;
}

.grade-card li {
    padding: 8px 0;
    padding-left: 20px;
    position: relative;
    color: var(--gray-700);
}

.grade-card li::before {
    content: "•";
    position: absolute;
    left: 0;
    color: var(--accent);
}

/* Engagement Section */
.engagement-section {
    padding: 80px 0;
    background: var(--gray-100);
}

.engagement-section h2 {
    text-align: center;
    margin-bottom: 48px;
}

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

.engagement-item {
    text-align: center;
}

.engagement-icon {
    font-size: 3rem;
    display: block;
    margin-bottom: 16px;
}

.engagement-item h3 {
    margin-bottom: 12px;
}

.engagement-item p {
    color: var(--gray-500);
}

/* Robot CTA */
.robot-cta {
    padding: 100px 0;
    background: var(--gradient);
    text-align: center;
    color: var(--white);
}

.robot-cta h2 {
    margin-bottom: 16px;
}

.robot-cta p {
    font-size: 1.25rem;
    margin-bottom: 32px;
    opacity: 0.9;
}

.robot-cta .btn {
    background: var(--white);
    color: var(--primary);
}

.robot-cta .btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

/* Robot Category Badge */
.robot-category {
    display: inline-block;
    background: var(--gradient);
    color: var(--white);
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 12px;
}

.robot-description {
    font-size: 1.1rem;
    color: var(--gray-700);
    margin-bottom: 32px;
    line-height: 1.7;
}

/* Robot Quick Specs */
.robot-quick-specs {
    display: flex;
    gap: 24px;
    margin-bottom: 32px;
    flex-wrap: wrap;
}

.robot-quick-specs .spec-item {
    text-align: center;
    padding: 16px 24px;
    background: var(--gray-100);
    border-radius: 12px;
    min-width: 80px;
}

.robot-quick-specs .spec-value {
    display: block;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
}

.robot-quick-specs .spec-label {
    font-size: 0.85rem;
    color: var(--gray-500);
}

/* Robot Video Section */
.robot-video {
    padding: 80px 0;
    background: var(--gray-100);
}

.robot-video h2 {
    text-align: center;
    margin-bottom: 40px;
}

.video-container {
    position: relative;
    padding-bottom: 56.25%;
    height: 0;
    overflow: hidden;
    max-width: 900px;
    margin: 0 auto;
    border-radius: 16px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
}

.video-container iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border-radius: 16px;
}

/* Robot Specs Section */
.robot-specs {
    padding: 80px 0;
}

.robot-specs h2 {
    text-align: center;
    margin-bottom: 48px;
}

.specs-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
}

.specs-category {
    background: var(--white);
    border-radius: 16px;
    padding: 32px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
    border: 1px solid var(--gray-300);
}

.specs-category h3 {
    margin-bottom: 20px;
    color: var(--dark);
    font-size: 1.25rem;
}

.specs-table {
    width: 100%;
    border-collapse: collapse;
}

.specs-table tr {
    border-bottom: 1px solid var(--gray-100);
}

.specs-table tr:last-child {
    border-bottom: none;
}

.specs-table td {
    padding: 12px 0;
}

.specs-table td:first-child {
    color: var(--gray-500);
}

.specs-table td:last-child {
    text-align: right;
    font-weight: 600;
    color: var(--dark);
}

/* Feature List in Specs */
.specs-category .feature-list {
    list-style: none;
}

.specs-category .feature-list li {
    padding: 10px 0;
    padding-left: 24px;
    position: relative;
    color: var(--gray-700);
}

.specs-category .feature-list li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--accent);
    font-weight: bold;
}

.specs-category.highlight-card .feature-list li {
    color: rgba(255, 255, 255, 0.9);
}

.specs-category.highlight-card .feature-list li::before {
    color: rgba(255, 255, 255, 0.9);
}

.specs-category.highlight-card p {
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 16px;
}

.specs-category.highlight-card .specs-table td {
    color: var(--white);
}

.specs-category.highlight-card .specs-table td:first-child {
    color: rgba(255, 255, 255, 0.8);
}

.specs-category.highlight-card .specs-table tr {
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
}

/* Robot Education Section */
.robot-education {
    padding: 80px 0;
    background: var(--gray-100);
}

.robot-education h2 {
    text-align: center;
    margin-bottom: 16px;
}

.education-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.education-card {
    background: var(--white);
    padding: 32px 24px;
    border-radius: 16px;
    text-align: center;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
    transition: transform 0.3s, box-shadow 0.3s;
}

.education-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.1);
}

.education-icon {
    font-size: 3rem;
    display: block;
    margin-bottom: 16px;
}

.education-card h3 {
    margin-bottom: 16px;
    font-size: 1.15rem;
}

.education-card ul {
    list-style: none;
    text-align: left;
}

.education-card li {
    padding: 8px 0;
    padding-left: 20px;
    position: relative;
    color: var(--gray-700);
    font-size: 0.95rem;
}

.education-card li::before {
    content: "→";
    position: absolute;
    left: 0;
    color: var(--accent);
}

/* Capabilities List */
.capabilities-list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    max-width: 900px;
    margin: 0 auto;
}

.capability {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    padding: 24px;
    background: var(--white);
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.06);
}

.capability .capability-icon {
    font-size: 2rem;
    flex-shrink: 0;
}

.capability h4 {
    margin-bottom: 8px;
    color: var(--dark);
}

.capability p {
    color: var(--gray-500);
    font-size: 0.95rem;
    line-height: 1.6;
}

/* About Manufacturer */
.about-manufacturer {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.about-manufacturer p {
    font-size: 1.1rem;
    color: var(--gray-700);
    line-height: 1.8;
    margin-bottom: 20px;
}

/* Other Robots */
.other-robots {
    padding: 80px 0;
}

.other-robots h2 {
    text-align: center;
    margin-bottom: 48px;
}

.other-robots-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
    max-width: 800px;
    margin: 0 auto;
}

.other-robot-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-decoration: none;
    padding: 32px;
    background: var(--white);
    border-radius: 16px;
    border: 2px solid var(--gray-300);
    transition: all 0.3s;
}

.other-robot-card:hover {
    border-color: var(--primary);
    transform: translateY(-4px);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.1);
}

.other-robot-card img {
    width: 120px;
    height: 120px;
    object-fit: contain;
    margin-bottom: 16px;
}

.other-robot-card h3 {
    color: var(--dark);
    margin-bottom: 8px;
}

.other-robot-card span {
    color: var(--primary);
    font-weight: 600;
}

/* Responsive */
@media (max-width: 1024px) {
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    h1 { font-size: 2.5rem; }
    h2 { font-size: 2rem; }
    
    .nav-links {
        display: none; /* Add mobile menu later */
    }
    
    .hero .container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-buttons {
        justify-content: center;
        flex-wrap: wrap;
    }
    
    .robot-showcase {
        display: none;
    }
    
    .about-grid {
        grid-template-columns: 1fr;
    }
    
    .robots-grid {
        grid-template-columns: 1fr;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        flex-direction: column;
        gap: 24px;
        text-align: center;
    }
    
    /* Robot Detail Pages Responsive */
    .robot-hero-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .robot-hero-content h1 {
        font-size: 2.25rem;
    }
    
    .robot-quick-stats {
        justify-content: center;
    }
    
    .description-grid {
        grid-template-columns: 1fr;
    }
    
    .capabilities-grid {
        grid-template-columns: 1fr;
    }
    
    .grades-grid {
        grid-template-columns: 1fr;
    }
    
    .engagement-grid {
        grid-template-columns: 1fr;
    }
    
    .other-robots-grid {
        grid-template-columns: 1fr;
    }
    
    .specs-grid {
        grid-template-columns: 1fr;
    }
    
    .education-grid {
        grid-template-columns: 1fr 1fr;
    }
    
    .capabilities-list {
        grid-template-columns: 1fr;
    }
    
    .robot-quick-specs {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .education-grid {
        grid-template-columns: 1fr;
    }
    
    .robot-quick-specs .spec-item {
        min-width: 60px;
        padding: 12px 16px;
    }
    
    .robot-quick-specs .spec-value {
        font-size: 1.25rem;
    }
}