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

:root {
    /* Colors */
    --primary-color: #6366f1;
    --primary-dark: #4f46e5;
    --secondary-color: #f8fafc;
    --accent-color: #10b981;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --text-muted: #94a3b8;
    --border-color: #e2e8f0;
    --background: #ffffff;
    --background-secondary: #f8fafc;
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
    --gradient-secondary: linear-gradient(135deg, #10b981 0%, #059669 100%);
    
    /* 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;
    --spacing-4xl: 6rem;
    
    /* Border radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--background);
    background-image: url('../images/bg.jpg');
    background-attachment: fixed;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Semi-transparent overlay for better readability */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(255, 255, 255, 0.35);
    z-index: -1;
    pointer-events: none;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

/* 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);
}

.text-gradient {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-xl);
    border: none;
    border-radius: var(--radius-lg);
    font-size: var(--font-size-base);
    font-weight: 500;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.2s ease;
    white-space: nowrap;
}

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

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

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

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

.btn--large {
    padding: var(--spacing-lg) var(--spacing-2xl);
    font-size: var(--font-size-lg);
}

.btn__icon {
    width: 20px;
    height: 20px;
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md) var(--spacing-lg);
}

.nav__brand {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-weight: 600;
    font-size: var(--font-size-lg);
    color: var(--text-primary);
    text-decoration: none;
}

.nav__logo {
    width: 32px;
    height: 32px;
}

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

.nav__link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s ease;
}

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

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

/* Hero Section */
.hero {
    padding: calc(80px + var(--spacing-4xl)) 0 var(--spacing-4xl);
    background: rgba(248, 250, 252, 0.9);
    backdrop-filter: blur(10px);
    position: relative;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.05) 0%, rgba(139, 92, 246, 0.05) 100%);
    z-index: -1;
}

.hero__content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-4xl);
    align-items: center;
}

.hero__title {
    font-size: var(--font-size-5xl);
    font-weight: 700;
    margin-bottom: var(--spacing-lg);
    line-height: 1.1;
}

.hero__subtitle {
    font-size: var(--font-size-xl);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-2xl);
    line-height: 1.6;
}

.hero__actions {
    display: flex;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-3xl);
}

.hero__stats {
    display: flex;
    gap: var(--spacing-2xl);
}

.stat {
    text-align: center;
}

.stat__number {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: var(--spacing-xs);
}

.stat__label {
    font-size: var(--font-size-sm);
    color: var(--text-muted);
}

/* Phone Mockup */
.phone-mockup {
    position: relative;
    width: 300px;
    height: 600px;
    margin: 0 auto;
    background: #1a1a1a;
    border-radius: 30px;
    padding: 20px;
    box-shadow: var(--shadow-xl);
}

.phone-mockup__screen {
    width: 100%;
    height: 100%;
    background: white;
    border-radius: 20px;
    overflow: hidden;
    position: relative;
}

.chat-demo {
    padding: var(--spacing-lg);
    height: 100%;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.chat-demo__message {
    display: flex;
    gap: var(--spacing-sm);
    max-width: 80%;
}

.chat-demo__message--bot {
    align-self: flex-start;
}

.chat-demo__message--user {
    align-self: flex-end;
    flex-direction: row-reverse;
}

.chat-demo__avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-lg);
    flex-shrink: 0;
}

.chat-demo__content {
    background: var(--background-secondary);
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    position: relative;
}

.chat-demo__message--user .chat-demo__content {
    background: var(--primary-color);
    color: white;
}

.chat-demo__text {
    font-size: var(--font-size-sm);
    line-height: 1.4;
}

.chat-demo__typing {
    display: flex;
    gap: 4px;
    margin-top: var(--spacing-sm);
}

.chat-demo__typing span {
    width: 6px;
    height: 6px;
    background: var(--text-muted);
    border-radius: 50%;
    animation: typing 1.4s infinite ease-in-out;
}

.chat-demo__typing span:nth-child(2) {
    animation-delay: 0.2s;
}

.chat-demo__typing span:nth-child(3) {
    animation-delay: 0.4s;
}

@keyframes typing {
    0%, 60%, 100% {
        transform: translateY(0);
    }
    30% {
        transform: translateY(-10px);
    }
}

/* Section Styles */
.section-header {
    text-align: center;
    margin-bottom: var(--spacing-4xl);
}

.section-title {
    font-size: var(--font-size-4xl);
    font-weight: 700;
    margin-bottom: var(--spacing-lg);
}

.section-subtitle {
    font-size: var(--font-size-xl);
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* Features Section */
.features {
    padding: var(--spacing-4xl) 0;
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(5px);
}

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

.feature-card {
    padding: var(--spacing-2xl);
    background: var(--background);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    text-align: center;
    transition: all 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.feature-card__icon {
    width: 64px;
    height: 64px;
    margin: 0 auto var(--spacing-lg);
    background: var(--gradient-primary);
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
}

.feature-card__icon svg {
    width: 32px;
    height: 32px;
}

.feature-card__title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.feature-card__description {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* How it works */
.how-it-works {
    padding: var(--spacing-4xl) 0;
    background: rgba(248, 250, 252, 0.8);
    backdrop-filter: blur(5px);
}

.steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-2xl);
}

.step {
    display: flex;
    gap: var(--spacing-lg);
    align-items: flex-start;
}

.step__number {
    width: 48px;
    height: 48px;
    background: var(--gradient-primary);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-xl);
    font-weight: 700;
    flex-shrink: 0;
}

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

.step__description {
    color: var(--text-secondary);
    line-height: 1.6;
}

.bot-name {
    position: relative;
    display: inline-block;
    color: var(--primary-color);
    font-weight: 600;
    cursor: pointer;
    padding: 2px 6px;
    border-radius: var(--radius-sm);
    background: rgba(99, 102, 241, 0.1);
    border: 1px solid rgba(99, 102, 241, 0.2);
    transition: all 0.2s ease;
    user-select: none;
}

.bot-name:hover {
    background: rgba(99, 102, 241, 0.15);
    border-color: var(--primary-color);
    transform: translateY(-1px);
    box-shadow: 0 2px 4px rgba(99, 102, 241, 0.2);
}

.bot-name:active {
    transform: translateY(0);
    box-shadow: 0 1px 2px rgba(99, 102, 241, 0.3);
}

.bot-name::after {
    content: "📋";
    margin-left: 4px;
    font-size: 0.8em;
    opacity: 0.7;
    transition: opacity 0.2s ease;
}

.bot-name:hover::after {
    opacity: 1;
}

/* Notification styles */
.notification {
    position: fixed;
    top: 20px;
    right: 20px;
    background: var(--background);
    color: var(--text-primary);
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    border-left: 4px solid var(--accent-color);
    z-index: 10000;
    transform: translateX(100%);
    transition: transform 0.3s ease;
    max-width: 300px;
    font-weight: 500;
}

.notification.show {
    transform: translateX(0);
}

.notification--success {
    border-left-color: var(--accent-color);
}

.notification--error {
    border-left-color: #ef4444;
}

.notification--warning {
    border-left-color: #f59e0b;
}

/* Pricing Section */
.pricing {
    padding: var(--spacing-4xl) 0;
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(5px);
}

.pricing__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-2xl);
    max-width: 800px;
    margin: 0 auto;
}

.pricing-card {
    position: relative;
    padding: var(--spacing-2xl);
    background: var(--background);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-2xl);
    text-align: center;
    transition: all 0.3s ease;
}

.pricing-card--featured {
    border-color: var(--primary-color);
    transform: scale(1.05);
    box-shadow: var(--shadow-xl);
}

.pricing-card--featured:hover {
    transform: scale(1.05) translateY(-4px);
}

.pricing-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.pricing-card__badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--gradient-primary);
    color: white;
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-lg);
    font-size: var(--font-size-sm);
    font-weight: 600;
}

.pricing-card__title {
    font-size: var(--font-size-2xl);
    font-weight: 600;
    margin-bottom: var(--spacing-lg);
    color: var(--text-primary);
}

.pricing-card__price {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-2xl);
}

.pricing-card__currency {
    font-size: var(--font-size-xl);
    color: var(--text-secondary);
}

.pricing-card__amount {
    font-size: var(--font-size-4xl);
    font-weight: 700;
    color: var(--primary-color);
}

.pricing-card__period {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
}

.pricing-card__features {
    margin-bottom: var(--spacing-2xl);
}

.pricing-card__feature {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) 0;
    color: var(--text-secondary);
}

.pricing-card__check {
    width: 20px;
    height: 20px;
    color: var(--accent-color);
    flex-shrink: 0;
}

.pricing-card__button {
    width: 100%;
    justify-content: center;
}

/* Reviews Section */
.reviews {
    padding: var(--spacing-4xl) 0;
    background: rgba(248, 250, 252, 0.8);
    backdrop-filter: blur(5px);
}

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

.review-card {
    padding: var(--spacing-2xl);
    background: var(--background);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    transition: all 0.3s ease;
}

.review-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.review-card__rating {
    display: flex;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-lg);
}

.review-card__rating svg {
    width: 20px;
    height: 20px;
    color: #fbbf24;
}

.review-card__text {
    font-size: var(--font-size-lg);
    line-height: 1.6;
    color: var(--text-primary);
    margin-bottom: var(--spacing-lg);
    font-style: italic;
}

.review-card__author {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.review-card__avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    object-fit: cover;
    flex-shrink: 0;
    border: 3px solid var(--primary-color);
    box-shadow: 0 2px 8px rgba(99, 102, 241, 0.2);
    transition: all 0.3s ease;
}

.review-card__avatar:hover {
    border-color: var(--primary-dark);
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3);
    transform: scale(1.05);
}

.review-card__name {
    font-weight: 600;
    color: var(--text-primary);
}

.review-card__role {
    font-size: var(--font-size-sm);
    color: var(--text-muted);
}

/* FAQ Section */
.faq {
    padding: var(--spacing-4xl) 0;
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(5px);
}

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

.faq__item {
    border-bottom: 1px solid var(--border-color);
}

.faq__item:last-child {
    border-bottom: none;
}

.faq__question {
    width: 100%;
    padding: var(--spacing-xl) 0;
    background: none;
    border: none;
    text-align: left;
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--text-primary);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: color 0.2s ease;
}

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

.faq__icon {
    width: 24px;
    height: 24px;
    transition: transform 0.2s ease;
}

.faq__item.active .faq__icon {
    transform: rotate(180deg);
}

.faq__answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.faq__item.active .faq__answer {
    max-height: 200px;
}

.faq__answer p {
    padding-bottom: var(--spacing-xl);
    color: var(--text-secondary);
    line-height: 1.6;
}

/* CTA Section */
.cta {
    padding: var(--spacing-4xl) 0;
    background: var(--gradient-primary);
    color: white;
    text-align: center;
}

.cta__title {
    font-size: var(--font-size-4xl);
    font-weight: 700;
    margin-bottom: var(--spacing-lg);
    color: white;
}

.cta__subtitle {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-2xl);
    color: rgba(255, 255, 255, 0.9);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.cta__actions {
    display: flex;
    gap: var(--spacing-lg);
    justify-content: center;
}

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

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

.cta .btn--secondary {
    background: transparent;
    color: white;
    border-color: rgba(255, 255, 255, 0.3);
}

.cta .btn--secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: white;
}

/* Footer */
.footer {
    padding: var(--spacing-4xl) 0 var(--spacing-xl);
    background: var(--text-primary);
    color: white;
}

.footer__content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: var(--spacing-4xl);
    margin-bottom: var(--spacing-2xl);
}

.footer__logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-lg);
}

.footer__logo img {
    width: 32px;
    height: 32px;
}

.footer__description {
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.6;
}

.footer__links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-2xl);
}

.footer__title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-lg);
    color: white;
}

.footer__link {
    display: block;
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    margin-bottom: var(--spacing-sm);
    transition: color 0.2s ease;
}

.footer__link:hover {
    color: white;
}

.footer__bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--spacing-xl);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer__copyright {
    color: rgba(255, 255, 255, 0.7);
}

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

.footer__social-link {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    text-decoration: none;
    transition: all 0.2s ease;
}

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

.footer__social-link svg {
    width: 20px;
    height: 20px;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .hero__content {
        grid-template-columns: 1fr;
        gap: var(--spacing-2xl);
        text-align: center;
    }
    
    .hero__actions {
        justify-content: center;
    }
    
    .hero__stats {
        justify-content: center;
    }
    
    .features__grid {
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    }
    
    .steps {
        grid-template-columns: 1fr;
    }
    
    .pricing__grid {
        grid-template-columns: 1fr;
    }
    
    .pricing-card--featured {
        transform: none;
    }
    
    .reviews__grid {
        grid-template-columns: 1fr;
    }
    
    .footer__content {
        grid-template-columns: 1fr;
        gap: var(--spacing-2xl);
    }
    
    .footer__links {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .container {
        padding: 0 var(--spacing-md);
    }
    
    .nav {
        flex-wrap: wrap;
        gap: var(--spacing-md);
    }
    
    .nav__menu {
        display: none;
    }
    
    .nav__brand {
        flex: 1;
        min-width: 0;
    }
    
    .nav__title {
        font-size: var(--font-size-base);
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
    }
    
    .nav__actions {
        flex-shrink: 0;
    }
    
    .nav__actions .btn {
        padding: var(--spacing-sm) var(--spacing-md);
        font-size: var(--font-size-sm);
    }
    
    .hero {
        padding: calc(80px + var(--spacing-2xl)) 0 var(--spacing-2xl);
    }
    
    .hero__title {
        font-size: var(--font-size-3xl);
    }
    
    .hero__subtitle {
        font-size: var(--font-size-lg);
    }
    
    .hero__actions {
        flex-direction: column;
        align-items: center;
    }
    
    .hero__stats {
        flex-direction: column;
        gap: var(--spacing-lg);
    }
    
    .section-title {
        font-size: var(--font-size-3xl);
    }
    
    .section-subtitle {
        font-size: var(--font-size-lg);
    }
    
    .features__grid {
        grid-template-columns: 1fr;
    }
    
    .step {
        flex-direction: column;
        text-align: center;
    }
    
    .cta__actions {
        flex-direction: column;
        align-items: center;
    }
    
    .footer__links {
        grid-template-columns: 1fr;
    }
    
    .footer__bottom {
        flex-direction: column;
        gap: var(--spacing-md);
        text-align: center;
    }
    
    .review-card__avatar {
        width: 40px;
        height: 40px;
        border-width: 2px;
    }
}

@media (max-width: 480px) {
    .nav {
        padding: var(--spacing-sm) var(--spacing-md);
    }
    
    .nav__brand {
        gap: var(--spacing-xs);
    }
    
    .nav__logo {
        width: 24px;
        height: 24px;
    }
    
    .nav__title {
        font-size: var(--font-size-sm);
    }
    
    .nav__actions .btn {
        padding: var(--spacing-xs) var(--spacing-sm);
        font-size: var(--font-size-xs);
    }
    
    .hero__title {
        font-size: var(--font-size-2xl);
    }
    
    .section-title {
        font-size: var(--font-size-2xl);
    }
    
    .cta__title {
        font-size: var(--font-size-3xl);
    }
    
    .phone-mockup {
        width: 250px;
        height: 500px;
    }
}