/* =============================================================================
   Responsive CSS - Breakpoint-specific styles
   ============================================================================= */

/* =============================================================================
   Base Responsive Utilities
   ============================================================================= */
.container {
    max-width: 100%;
    margin: 0 auto;
    padding: 0 20px;
}

/* =============================================================================
   1920px+ (Extra Large Screens)
   ============================================================================= */
@media screen and (min-width: 1920px) {
    .main-container {
        max-width: 1920px;
    }
    
    .hero__content {
        max-width: 1400px;
    }
    
    .hero__title {
        font-size: 4rem;
    }
    
    .hero__subtitle {
        font-size: 1.75rem;
    }
    
    .hero__profile-image {
        width: 250px;
        height: 250px;
    }
    
    .hero__cta {
        font-size: 1.5rem;
        padding: 1.25rem 3rem;
    }
    
    .hero__description-text {
        font-size: 1.25rem;
    }
    
    .hero__description-text--secondary {
        font-size: 1.125rem;
    }
    
    .features__container,
    .promo__container,
    .community__container,
    .disclaimer__container,
    .footer__container {
        max-width: 1400px;
    }
    
    .feature-card {
        padding: 2.5rem;
        margin-bottom: 2.5rem;
    }
    
    .feature-card__icon-emoji {
        font-size: 3rem;
    }
    
    .feature-card__title {
        font-size: 1.75rem;
    }
    
    .feature-card__description {
        font-size: 1.125rem;
    }
    
    .community__title {
        font-size: 2.25rem;
    }
    
    .community__feature-item {
        font-size: 1.25rem;
    }
    
    .features__cta-text {
        font-size: 1.5rem;
    }
}

/* =============================================================================
   1440px (Large Screens)
   ============================================================================= */
@media screen and (max-width: 1440px) {
    .hero__content {
        max-width: 1200px;
        padding: 0 30px;
    }
    
    .hero__title {
        font-size: 3.25rem;
    }
    
    .hero__subtitle {
        font-size: 1.375rem;
    }
    
    .hero__profile-image {
        width: 180px;
        height: 180px;
    }
    
    .features__container,
    .promo__container,
    .community__container,
    .disclaimer__container,
    .footer__container {
        max-width: 1200px;
        padding: 0 30px;
    }
    
    .feature-card {
        padding: 1.75rem;
    }
    
    .community__card {
        padding: 2.5rem;
    }
}

/* =============================================================================
   1024px (Medium Screens)
   ============================================================================= */
@media screen and (max-width: 1024px) {
    .hero__content {
        max-width: 900px;
        padding: 0 25px;
    }
    
    .hero__title {
        font-size: 2.75rem;
    }
    
    .hero__subtitle {
        font-size: 1.25rem;
    }
    
    .hero__profile-image {
        width: 160px;
        height: 160px;
    }
    
    .hero__cta {
        font-size: 1.125rem;
        padding: 0.875rem 2rem;
    }
    
    .hero__description-text {
        font-size: 1.0625rem;
    }
    
    .features {
        padding: 4rem 0;
    }
    
    .features__container,
    .promo__container,
    .community__container,
    .disclaimer__container,
    .footer__container {
        max-width: 900px;
        padding: 0 25px;
    }
    
    .feature-card {
        flex-direction: column;
        text-align: center;
        padding: 1.5rem;
    }
    
    .feature-card__icon {
        margin-right: 0;
        margin-bottom: 1rem;
    }
    
    .feature-card__icon-emoji {
        font-size: 2.25rem;
    }
    
    .feature-card__title {
        font-size: 1.375rem;
    }
    
    .community__card {
        padding: 2rem;
    }
    
    .community__title {
        font-size: 1.875rem;
    }
    
    .community__feature-item {
        font-size: 1.0625rem;
    }
    
    .footer__nav-list {
        gap: 0.75rem;
    }
}

/* =============================================================================
   768px (Small Tablets)
   ============================================================================= */
@media screen and (max-width: 768px) {
    .hero {
        min-height: 80vh;
        padding: 2rem 0;
    }
    
    .hero__content {
        max-width: 700px;
        padding: 0 20px;
    }
    
    .hero__title {
        font-size: 2.25rem;
        margin-bottom: 1rem;
    }
    
    .hero__subtitle {
        font-size: 1.125rem;
        margin-bottom: 2rem;
    }
    
    .hero__profile {
        margin: 2rem 0;
    }
    
    .hero__profile-image {
        width: 140px;
        height: 140px;
    }
    
    .hero__cta {
        font-size: 1rem;
        padding: 0.75rem 1.5rem;
        margin: 1.5rem 0 2rem 0;
    }
    
    .hero__description {
        margin-top: 2rem;
    }
    
    .hero__description-text {
        font-size: 1rem;
    }
    
    .hero__description-text--secondary {
        font-size: 0.9375rem;
    }
    
    .features {
        padding: 3rem 0;
    }
    
    .features__container,
    .promo__container,
    .community__container,
    .disclaimer__container,
    .footer__container {
        max-width: 700px;
        padding: 0 20px;
    }
    
    .feature-card {
        padding: 1.25rem;
        margin-bottom: 1.5rem;
    }
    
    .feature-card__icon-emoji {
        font-size: 2rem;
    }
    
    .feature-card__title {
        font-size: 1.25rem;
    }
    
    .feature-card__description {
        font-size: 0.9375rem;
    }
    
    .features__cta-banner {
        padding: 1.5rem;
        margin-top: 2rem;
    }
    
    .features__cta-text {
        font-size: 1.125rem;
    }
    
    .promo {
        padding: 3rem 0;
    }
    
    .community {
        padding: 4rem 0;
    }
    
    .community__card {
        padding: 1.5rem;
    }
    
    .community__title {
        font-size: 1.625rem;
        flex-direction: column;
        text-align: center;
        gap: 0.75rem;
    }
    
    .community__feature-item {
        font-size: 1rem;
        padding: 0.75rem 0;
        padding-left: 1.25rem;
    }
    
    .community__feature-item::before {
        top: 0.75rem;
    }
    
    .disclaimer {
        padding: 1.5rem 0;
    }
    
    .disclaimer__text {
        font-size: 0.8125rem;
    }
    
    .footer {
        padding: 2.5rem 0 1.5rem 0;
    }
    
    .footer__company-info,
    .footer__privacy,
    .footer__terms {
        margin-bottom: 1.5rem;
    }
    
    .footer__company-title {
        font-size: 1.125rem;
    }
    
    .footer__company-item,
    .footer__privacy-text,
    .footer__terms-text {
        font-size: 0.8125rem;
    }
    
    .footer__privacy-links,
    .footer__terms-links {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.25rem;
    }
    
    .footer__nav {
        padding-top: 1.5rem;
        margin-top: 1.5rem;
    }
    
    .footer__nav-list {
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .footer__nav-separator {
        display: none;
    }
}

/* =============================================================================
   375px (Mobile)
   ============================================================================= */
@media screen and (max-width: 375px) {
    .hero {
        min-height: 70vh;
        padding: 1.5rem 0;
    }
    
    .hero__content {
        max-width: 100%;
        padding: 0 15px;
    }
    
    .hero__title {
        font-size: 1.875rem;
        margin-bottom: 0.75rem;
    }
    
    .hero__subtitle {
        font-size: 1rem;
        margin-bottom: 1.5rem;
    }
    
    .hero__profile {
        margin: 1.5rem 0;
    }
    
    .hero__profile-image {
        width: 120px;
        height: 120px;
    }
    
    .hero__cta {
        font-size: 0.9375rem;
        padding: 0.625rem 1.25rem;
        margin: 1rem 0 1.5rem 0;
    }
    
    .hero__description {
        margin-top: 1.5rem;
    }
    
    .hero__description-text {
        font-size: 0.9375rem;
    }
    
    .hero__description-text--secondary {
        font-size: 0.875rem;
    }
    
    .features {
        padding: 2.5rem 0;
    }
    
    .features__container,
    .promo__container,
    .community__container,
    .disclaimer__container,
    .footer__container {
        max-width: 100%;
        padding: 0 15px;
    }
    
    .feature-card {
        padding: 1rem;
        margin-bottom: 1.25rem;
    }
    
    .feature-card__icon-emoji {
        font-size: 1.75rem;
    }
    
    .feature-card__title {
        font-size: 1.125rem;
    }
    
    .feature-card__description {
        font-size: 0.875rem;
    }
    
    .features__cta-banner {
        padding: 1.25rem;
        margin-top: 1.5rem;
    }
    
    .features__cta-text {
        font-size: 1rem;
    }
    
    .promo {
        padding: 2.5rem 0;
    }
    
    .promo__image {
        border-radius: 12px;
    }
    
    .community {
        padding: 3rem 0;
    }
    
    .community__card {
        padding: 1.25rem;
    }
    
    .community__title {
        font-size: 1.5rem;
        margin-bottom: 1.5rem;
    }
    
    .community__feature-item {
        font-size: 0.9375rem;
        padding: 0.625rem 0;
        padding-left: 1rem;
    }
    
    .community__feature-item::before {
        top: 0.625rem;
    }
    
    .disclaimer {
        padding: 1.25rem 0;
    }
    
    .disclaimer__text {
        font-size: 0.75rem;
    }
    
    .footer {
        padding: 2rem 0 1.25rem 0;
    }
    
    .footer__company-info,
    .footer__privacy,
    .footer__terms {
        margin-bottom: 1.25rem;
    }
    
    .footer__company-title {
        font-size: 1.0625rem;
        margin-bottom: 0.75rem;
    }
    
    .footer__company-item,
    .footer__privacy-text,
    .footer__terms-text {
        font-size: 0.75rem;
        margin-bottom: 0.375rem;
    }
    
    .footer__privacy-links,
    .footer__terms-links {
        gap: 0.125rem;
    }
    
    .footer__privacy-link,
    .footer__terms-link {
        font-size: 0.75rem;
    }
    
    .footer__privacy-separator,
    .footer__terms-separator {
        font-size: 0.75rem;
    }
    
    .footer__nav {
        padding-top: 1.25rem;
        margin-top: 1.25rem;
    }
    
    .footer__nav-list {
        gap: 0.375rem;
    }
    
    .footer__nav-link {
        font-size: 0.75rem;
    }
}

/* =============================================================================
   Orientation-specific styles
   ============================================================================= */
@media screen and (max-width: 768px) and (orientation: landscape) {
    .hero {
        min-height: 100vh;
        padding: 1rem 0;
    }
    
    .hero__profile-image {
        width: 100px;
        height: 100px;
    }
    
    .hero__title {
        font-size: 1.75rem;
    }
    
    .hero__subtitle {
        font-size: 1rem;
    }
    
    .hero__cta {
        font-size: 0.875rem;
        padding: 0.5rem 1rem;
    }
    
    .feature-card {
        flex-direction: row;
        text-align: left;
        padding: 1rem;
    }
    
    .feature-card__icon {
        margin-right: 1rem;
        margin-bottom: 0;
    }
}

/* =============================================================================
   High DPI displays
   ============================================================================= */
@media screen and (-webkit-min-device-pixel-ratio: 2),
       screen and (min-resolution: 192dpi) {
    .hero__profile-image,
    .promo__image {
        image-rendering: -webkit-optimize-contrast;
        image-rendering: crisp-edges;
    }
}

/* =============================================================================
   Reduced motion preference
   ============================================================================= */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    html {
        scroll-behavior: auto;
    }
}

/* =============================================================================
   Dark mode support (optional enhancement)
   ============================================================================= */
@media (prefers-color-scheme: dark) {
    :root {
        --text-primary: #ffffff;
        --text-secondary: #cccccc;
        --bg-primary: #1a1a1a;
        --bg-secondary: #2d2d2d;
        --border-color: #404040;
    }
    
    body {
        background-color: var(--bg-primary);
        color: var(--text-primary);
    }
    
    .feature-card {
        background: var(--bg-secondary);
        border-color: var(--border-color);
    }
    
    .community__card {
        background: var(--bg-secondary);
        border-color: var(--border-color);
    }
    
    .features__cta-banner {
        background: linear-gradient(135deg, #4a5568 0%, #2d3748 100%);
    }
}