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

:root {
    /* Dark theme color palette */
    --primary-color: #00d4ff;
    --secondary-color: #ff6b6b;
    --accent-color: #4ecdc4;
    --background-color: #0a0a0a;
    --surface-color: #1a1a1a;
    --surface-hover: #2a2a2a;
    --text-primary: #ffffff;
    --text-secondary: #b0b0b0;
    --text-muted: #666666;
    --border-color: #333333;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.5);
    
    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    
    /* Border radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    
    /* Transitions */
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-fast: all 0.15s ease-in-out;
}

html {
    scroll-behavior: smooth;
}

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

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
}

h1 { font-size: var(--font-size-5xl); }
h2 { font-size: var(--font-size-4xl); }
h3 { font-size: var(--font-size-3xl); }
h4 { font-size: var(--font-size-2xl); }
h5 { font-size: var(--font-size-xl); }
h6 { font-size: var(--font-size-lg); }

p {
    margin-bottom: var(--spacing-md);
    color: var(--text-secondary);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-md) var(--spacing-xl);
    border: none;
    border-radius: var(--radius-md);
    font-size: var(--font-size-base);
    font-weight: 500;
    text-decoration: none;
    cursor: pointer;
    transition: var(--transition);
    gap: var(--spacing-sm);
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    color: var(--background-color);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

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

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

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    transition: var(--transition);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.nav-logo h2 {
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin: 0;
    font-size: var(--font-size-xl);
}

.nav-menu {
    display: flex;
    gap: var(--spacing-xl);
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    position: relative;
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary-color);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: var(--transition);
}

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

.nav-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.nav-lang {
    display: flex;
    align-items: center;
    margin-left: 12px;
}

.lang-btn {
    background: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
    padding: 6px 10px;
    border-radius: 6px;
    cursor: pointer;
    font-weight: 600;
}

.lang-btn:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.bar {
    width: 25px;
    height: 3px;
    background: var(--text-primary);
    margin: 3px 0;
    transition: var(--transition);
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    /* dark fallback color if images fail */
    background-color: var(--surface-color);
    /* overlay gradient on top, then local image fallbacks */
    background-image: linear-gradient(135deg, rgba(0,0,0,0.55) 0%, rgba(0,0,0,0.45) 100%),
                      url('images/cloud-ai-background.jpg'),
                      url('images/cloud-ai-background.svg');
    background-repeat: no-repeat;
    background-position: center center;
    background-size: cover;
    /* avoid `fixed` which can be problematic on mobile browsers */
    background-attachment: scroll;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(
        135deg,
        rgba(0, 0, 0, 0.6) 0%,
        rgba(0, 0, 0, 0.4) 50%,
        rgba(0, 0, 0, 0.7) 100%
    );
    pointer-events: none;
    z-index: 1;
}

/* Ensure readable content when background image fails */
.hero.no-bg::before {
    background: linear-gradient(135deg, rgba(10,10,10,0.85), rgba(26,26,26,0.85));
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: center;
    position: relative;
    z-index: 2;
}

.hero-title {
    font-size: var(--font-size-5xl);
    font-weight: 700;
    margin-bottom: var(--spacing-lg);
    color: var(--text-primary);
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.8);
    position: relative;
    z-index: 3;
}

.hero-subtitle {
    font-size: var(--font-size-xl);
    color: var(--text-primary);
    margin-bottom: var(--spacing-2xl);
    line-height: 1.6;
    text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.7);
    position: relative;
    z-index: 3;
}

.hero-purpose {
    max-width: 800px;
    margin: 0 0 var(--spacing-2xl) 0;
    position: relative;
    color: var(--text-primary);
    font-size: var(--font-size-lg);
    text-align: left;
    line-height: 1.6;
    z-index: 3;
    padding: var(--spacing-lg);
    background: rgba(0, 0, 0, 0.4);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.hero-purpose b {
    color: var(--primary-color);
    font-weight: 600;
    text-shadow: 0 1px 2px rgba(0,0,0,0.8);
}

.hero-purpose:hover {
    background: rgba(0, 0, 0, 0.5);
    border-color: var(--primary-color);
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
    position: relative;
    z-index: 3;
}

.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
    z-index: 3;
}

.hero-avatar {
    width: 300px;
    height: 300px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 120px;
    color: var(--background-color);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5), 0 0 20px rgba(0, 212, 255, 0.3);
    position: relative;
    overflow: hidden;
    border: 4px solid rgba(255, 255, 255, 0.2);
}

.hero-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 50%;
    display: block;
}

.hero-avatar #default-avatar-icon {
    position: absolute;
    z-index: 1;
}

.hero-avatar:has(img) {
    background: none;
}

.hero-avatar:has(img) #default-avatar-icon {
    display: none;
}

/* Section Styles */
section {
    padding: var(--spacing-3xl) 0;
}

.section-title {
    text-align: center;
    font-size: var(--font-size-4xl);
    margin-bottom: var(--spacing-md);
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-subtitle {
    text-align: center;
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-2xl);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* About Section */
.about {
    background: var(--surface-color);
}

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

.about-text p {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-2xl);
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--spacing-xl);
    margin-top: var(--spacing-2xl);
}

.stat {
    text-align: center;
    padding: var(--spacing-lg);
    background: var(--background-color);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
}

.stat h3 {
    font-size: var(--font-size-3xl);
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
}

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

/* Certifications Section */
.certifications-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--spacing-xl);
    margin-top: var(--spacing-2xl);
}

/* AWS Certifications background */
.certifications {
    position: relative;
    background: linear-gradient(135deg, rgba(3,10,14,0.6), rgba(10,15,20,0.6)), url('https://github.com/Marubozu-Ousseini/Static-Portfolio-Website/blob/main/images/AWS%20Certifications.png?raw=true') no-repeat center center;
    background-size: cover;
    color: var(--text-primary);
}

.certifications::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(0,0,0,0.45), rgba(0,0,0,0.6));
    pointer-events: none;
}

.certifications .container {
    position: relative; /* keep content above overlay */
    z-index: 2;
}

.certification-card {
    background: var(--surface-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    border: 1px solid var(--border-color);
    transition: var(--transition);
    text-align: center;
}

.certification-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.certification-image {
    width: 100px;
    height: 100px;
    margin: 0 auto var(--spacing-lg);
    border-radius: var(--radius-md);
    overflow: hidden;
    border: 2px solid var(--border-color);
}

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

.certification-name {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.certification-date {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-md);
}

.certification-description {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    line-height: 1.5;
    margin-bottom: var(--spacing-lg);
    text-align: left;
}

.certification-link {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
}

.certification-link:hover {
    color: var(--accent-color);
}

/* Loading and Error States */
.loading {
    text-align: center;
    padding: var(--spacing-3xl);
}

.spinner {
    width: 40px;
    height: 40px;
    border: 4px solid var(--border-color);
    border-top: 4px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto var(--spacing-lg);
}

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

.error-message {
    text-align: center;
    padding: var(--spacing-xl);
    background: rgba(255, 107, 107, 0.1);
    border: 1px solid rgba(255, 107, 107, 0.3);
    border-radius: var(--radius-md);
    color: var(--secondary-color);
}

/* Projects Section */
.projects {
    position: relative;
    background: linear-gradient(135deg, rgba(4,8,12,0.6), rgba(8,12,18,0.6)), url('https://github.com/Marubozu-Ousseini/Static-Portfolio-Website/blob/main/images/projects-bg.jpg?raw=true') no-repeat center center;
    background-size: cover;
    color: var(--text-primary);
}

.projects::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(0,0,0,0.35), rgba(0,0,0,0.55));
    pointer-events: none;
}

.projects .container {
    position: relative; /* keep content above overlay */
    z-index: 2;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: var(--spacing-xl);
    margin-top: var(--spacing-2xl);
}

.project-card {
    background: var(--background-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.project-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.project-image {
    height: 200px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 48px;
    color: var(--background-color);
    overflow: hidden;
    position: relative;
}

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

.project-image:has(img) {
    background: var(--surface-color);
}

.project-content {
    padding: var(--spacing-xl);
}

.project-title {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.project-description {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
    line-height: 1.6;
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
}

.tech-tag {
    background: var(--surface-color);
    color: var(--primary-color);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    font-size: var(--font-size-sm);
    font-weight: 500;
}

.project-links {
    display: flex;
    gap: var(--spacing-md);
}

.project-link {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
}

.project-link:hover {
    color: var(--accent-color);
}

/* Skills Section */
.skills-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-xl);
    margin-top: var(--spacing-2xl);
}

.skill-category {
    background: var(--surface-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.skill-category:hover {
    border-color: var(--primary-color);
    transform: translateY(-2px);
}

.skill-category-title {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-lg);
    color: var(--primary-color);
    text-align: center;
}

.skill-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.skill-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-sm);
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

.skill-item:hover {
    background: var(--surface-hover);
}

.skill-icon {
    width: 24px;
    height: 24px;
    color: var(--primary-color);
}

.skill-name {
    color: var(--text-primary);
    font-weight: 500;
}

/* Contact Section */
.contact {
    position: relative;
    background: linear-gradient(135deg, rgba(4,8,12,0.6), rgba(8,12,18,0.6)), url('https://github.com/Marubozu-Ousseini/Static-Portfolio-Website/blob/main/images/contact-bg.jpg?raw=true') no-repeat center center;
    background-size: cover;
    color: var(--text-primary);
}

.contact::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(0,0,0,0.35), rgba(0,0,0,0.55));
    pointer-events: none;
}

.contact .container {
    position: relative; /* keep content above overlay */
    z-index: 2;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    margin-top: var(--spacing-2xl);
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
}

.contact-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    padding: var(--spacing-lg);
    background: var(--background-color);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.contact-item:hover {
    border-color: var(--primary-color);
}

.contact-item i {
    font-size: var(--font-size-xl);
    color: var(--primary-color);
    width: 24px;
}

.contact-item h4 {
    margin-bottom: var(--spacing-xs);
    color: var(--text-primary);
}

.contact-item p {
    margin: 0;
    color: var(--text-secondary);
}

.contact-form {
    background: var(--background-color);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
}

.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: var(--spacing-md);
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

/* Footer */
.footer {
    background: var(--background-color);
    border-top: 1px solid var(--border-color);
    padding: var(--spacing-2xl) 0;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-lg);
}

.footer-content p {
    margin: 0;
    color: var(--text-muted);
}

.social-links {
    display: flex;
    gap: var(--spacing-md);
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: var(--surface-color);
    color: var(--text-secondary);
    border-radius: 50%;
    text-decoration: none;
    transition: var(--transition);
}

.social-link:hover {
    background: var(--primary-color);
    color: var(--background-color);
    transform: translateY(-2px);
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background: var(--background-color);
        width: 100%;
        text-align: center;
        transition: var(--transition);
        box-shadow: var(--shadow);
        padding: var(--spacing-xl) 0;
    }

    .nav-menu.active {
        left: 0;
    }

    .nav-toggle {
        display: flex;
    }

    .nav-toggle.active .bar:nth-child(2) {
        opacity: 0;
    }

    .nav-toggle.active .bar:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }

    .nav-toggle.active .bar:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }

    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: var(--spacing-2xl);
    }

    .hero-title {
        font-size: var(--font-size-4xl);
    }

    .hero-subtitle {
        font-size: var(--font-size-lg);
    }

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

    .hero-avatar {
        width: 200px;
        height: 200px;
        font-size: 80px;
    }

    .contact-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-2xl);
    }

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

    .section-title {
        font-size: var(--font-size-3xl);
    }

    .about-stats {
        grid-template-columns: 1fr;
    }

    .certifications-grid,
    .projects-grid {
        grid-template-columns: 1fr;
    }

    .skills-container {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-sm);
    }

    .hero-title {
        font-size: var(--font-size-3xl);
    }

    .section-title {
        font-size: var(--font-size-2xl);
    }

    .btn {
        padding: var(--spacing-sm) var(--spacing-lg);
        font-size: var(--font-size-sm);
    }

    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
}

/* Smooth animations for dynamic content */
.fade-in {
    animation: fadeIn 0.6s ease-in-out;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Custom scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--background-color);
}

::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: var(--radius-sm);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-color);
}

/* Chat widget */
.chat-widget {
    position: fixed;
    right: 20px;
    bottom: 20px;
    z-index: 2000;
    display: flex;
    flex-direction: column;
    align-items: flex-end;
}

.chat-toggle {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    color: var(--background-color);
    border: none;
    font-size: 22px;
    cursor: pointer;
    box-shadow: var(--shadow-lg);
}

.chat-panel {
    width: 340px;
    max-height: 480px;
    background: var(--background-color);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    margin-bottom: 12px;
    overflow: hidden;
    display: none;
    flex-direction: column;
}

.chat-panel.open {
    display: flex;
}

.chat-header {
    padding: 12px;
    background: linear-gradient(90deg, rgba(0,0,0,0.2), rgba(0,0,0,0.1));
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border-color);
}

.chat-messages {
    padding: 12px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 8px;
    background: linear-gradient(180deg, rgba(255,255,255,0.01), transparent);
}

.chat-message {
    max-width: 80%;
    padding: 8px 12px;
    border-radius: 8px;
    font-size: 0.95rem;
}

.chat-message.user {
    align-self: flex-end;
    background: linear-gradient(135deg, rgba(0,212,255,0.12), rgba(78,205,196,0.08));
    color: var(--text-primary);
}

.chat-message.bot {
    align-self: flex-start;
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
}

.chat-form {
    display: flex;
    gap: 8px;
    padding: 12px;
    border-top: 1px solid var(--border-color);
    background: var(--background-color);
}

.chat-form input[type="text"] {
    flex: 1;
    padding: 8px 10px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    background: var(--surface-color);
    color: var(--text-primary);
}

@media (max-width: 480px) {
    .chat-panel { width: 90%; right: 8px; left: 8px; }
    .chat-widget { right: 8px; bottom: 8px; }
}