/* Premium Responsive Design - Enterprise Grade */

/* Advanced Container System */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 clamp(1rem, 4vw, 3rem);
}

.container-narrow {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 clamp(1rem, 4vw, 2rem);
}

.container-wide {
    max-width: 1600px;
    margin: 0 auto;
    padding: 0 clamp(1rem, 4vw, 4rem);
}

/* Responsive Typography Scale */
:root {
    /* Fluid Typography */
    --text-xs: clamp(0.75rem, 1vw, 0.875rem);
    --text-sm: clamp(0.875rem, 1.2vw, 1rem);
    --text-base: clamp(1rem, 1.4vw, 1.125rem);
    --text-lg: clamp(1.125rem, 1.6vw, 1.25rem);
    --text-xl: clamp(1.25rem, 1.8vw, 1.5rem);
    --text-2xl: clamp(1.5rem, 2.2vw, 2rem);
    --text-3xl: clamp(1.875rem, 3vw, 2.5rem);
    --text-4xl: clamp(2.25rem, 4vw, 3.5rem);
    --text-5xl: clamp(3rem, 6vw, 5rem);
    --text-6xl: clamp(3.75rem, 8vw, 6rem);

    /* Responsive Spacing */
    --space-xs: clamp(0.5rem, 1vw, 0.75rem);
    --space-sm: clamp(0.75rem, 2vw, 1rem);
    --space-md: clamp(1rem, 3vw, 1.5rem);
    --space-lg: clamp(1.5rem, 4vw, 2rem);
    --space-xl: clamp(2rem, 6vw, 3rem);
    --space-2xl: clamp(3rem, 8vw, 4rem);
    --space-3xl: clamp(4rem, 10vw, 6rem);
    --space-4xl: clamp(6rem, 12vw, 8rem);
}

/* Responsive Grid System */
.grid-responsive {
    display: grid;
    gap: var(--space-lg);
}

.grid-1-2 {
    grid-template-columns: 1fr 2fr;
}

.grid-2-1 {
    grid-template-columns: 2fr 1fr;
}

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

.grid-auto-fill {
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
}

/* Breakpoint Utilities */
@media (max-width: 1536px) {
    :root {
        --space-4xl: clamp(5rem, 10vw, 7rem);
        --space-3xl: clamp(3.5rem, 8vw, 5rem);
    }
}

@media (max-width: 1280px) {
    .grid-1-2,
    .grid-2-1 {
        grid-template-columns: 1fr;
    }

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

    .training-main-content {
        grid-template-columns: 1fr;
        gap: var(--space-xl);
    }
}

@media (max-width: 1024px) {
    .nav-links-premium {
        display: none;
    }

    .hero-stats-premium {
        flex-direction: column;
        gap: var(--space-md);
        align-items: center;
    }

    .hero-actions-premium {
        justify-content: center;
        flex-direction: column;
        align-items: center;
        gap: var(--space-md);
    }

    .cards-grid-premium {
        grid-template-columns: 1fr;
        gap: var(--space-lg);
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--space-xl);
        text-align: center;
    }
}

@media (max-width: 768px) {
    :root {
        --space-xs: 0.5rem;
        --space-sm: 0.75rem;
        --space-md: 1rem;
        --space-lg: 1.5rem;
        --space-xl: 2rem;
        --space-2xl: 2.5rem;
        --space-3xl: 3rem;
        --space-4xl: 4rem;
    }

    .nav-content-premium {
        padding: var(--space-md);
    }

    .hero-premium {
        min-height: 65vh;
        padding-top: 80px;
    }

    .hero-content-premium {
        padding: var(--space-md);
        gap: var(--space-xl);
    }

    .hero-badge-premium {
        font-size: 0.75rem;
        padding: var(--space-xs) var(--space-md);
    }

    .hero-stats-premium {
        flex-direction: column;
        gap: var(--space-sm);
    }

    .stat-premium {
        padding: var(--space-md);
        background: rgba(255, 255, 255, 0.1);
        border-radius: var(--radius-lg);
        width: 100%;
        max-width: 200px;
    }

    .floating-card {
        display: none;
    }

    .benefits-grid-premium {
        gap: var(--space-md);
    }

    .benefit-card-premium {
        padding: var(--space-md);
    }

    .form-container-premium {
        padding: var(--space-lg);
        margin: var(--space-md);
    }

    .footer-social-links {
        grid-template-columns: 1fr 1fr;
        gap: var(--space-sm);
    }

    .bacb-info {
        flex-direction: column;
        text-align: center;
        gap: var(--space-md);
    }
}

@media (max-width: 640px) {
    .container {
        padding: 0 1rem;
    }

    .hero-title-premium {
        font-size: clamp(2rem, 8vw, 3rem);
        line-height: 1.2;
    }

    .hero-subtitle-premium {
        font-size: 1rem;
        line-height: 1.5;
    }

    .btn-primary-premium,
    .btn-secondary-premium {
        padding: var(--space-md) var(--space-lg);
        font-size: 1rem;
        width: 100%;
        justify-content: center;
    }

    .section-title-premium {
        font-size: clamp(1.875rem, 6vw, 2.5rem);
    }

    .section-description-premium {
        font-size: 1rem;
    }

    .card-premium {
        padding: var(--space-lg);
    }

    .training-title-premium {
        font-size: clamp(1.875rem, 6vw, 2.5rem);
    }

    .training-subtitle-premium {
        font-size: clamp(1.25rem, 4vw, 1.75rem);
    }

    .premium-input {
        padding: var(--space-md);
        font-size: 16px; /* Prevents zoom on iOS */
    }

    .premium-submit-btn {
        padding: var(--space-md) var(--space-lg);
        font-size: 1rem;
    }
}

@media (max-width: 480px) {
    .hero-actions-premium {
        gap: var(--space-sm);
    }

    .hero-stats-premium {
        gap: var(--space-xs);
    }

    .stat-number-premium {
        font-size: 1.875rem;
    }

    .benefit-content-premium {
        flex-direction: column;
        gap: var(--space-sm);
        text-align: center;
    }

    .benefit-icon-premium {
        align-self: center;
    }

    .form-header-premium h4 {
        font-size: 1.5rem;
    }

    .footer-social-links {
        grid-template-columns: 1fr;
    }
}

/* Landscape Mobile Optimization */
@media (max-height: 600px) and (orientation: landscape) {
    .hero-premium {
        min-height: 80vh;
        padding-top: 60px;
    }

    .hero-content-premium {
        gap: var(--space-lg);
    }

    .hero-stats-premium {
        flex-direction: row;
        justify-content: center;
        gap: var(--space-lg);
    }
}

/* High DPI Display Optimization */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    .hero-image-premium,
    .ace-logo {
        image-rendering: -webkit-optimize-contrast;
        image-rendering: crisp-edges;
    }
}

/* Reduced Motion Support */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }

    .floating-orb,
    .floating-shape,
    .floating-card {
        animation: none !important;
    }
}

/* Dark Mode Support */
@media (prefers-color-scheme: dark) {
    :root {
        --gray-50: #1f2937;
        --gray-100: #374151;
        --gray-200: #4b5563;
    }

    .form-container-premium {
        background: rgba(31, 41, 55, 0.95);
        color: white;
    }

    .premium-input {
        background: rgba(55, 65, 81, 0.8);
        color: white;
        border-color: rgba(75, 85, 99, 0.5);
    }

    .premium-input::placeholder {
        color: rgba(255, 255, 255, 0.5);
    }
}

/* Print Styles */
@media print {
    .nav-premium,
    .floating-orb,
    .floating-shape,
    .floating-card,
    .training-floating-elements,
    .hero-orbs-premium {
        display: none !important;
    }

    .hero-premium {
        background: white !important;
        color: black !important;
        min-height: auto !important;
    }

    .section-premium {
        page-break-inside: avoid;
    }

    .card-premium {
        page-break-inside: avoid;
        box-shadow: none !important;
        border: 1px solid #ddd !important;
    }
}

/* Container Queries (Progressive Enhancement) */
@supports (container-type: inline-size) {
    .card-premium {
        container-type: inline-size;
    }

    @container (max-width: 300px) {
        .card-premium {
            padding: var(--space-md);
        }

        .card-title-premium {
            font-size: 1.25rem;
        }
    }
}

/* Focus Visible Support */
@supports selector(:focus-visible) {
    .nav-link-premium:focus,
    .btn-primary-premium:focus,
    .btn-secondary-premium:focus,
    .premium-input:focus {
        outline: none;
    }

    .nav-link-premium:focus-visible,
    .btn-primary-premium:focus-visible,
    .btn-secondary-premium:focus-visible,
    .premium-input:focus-visible {
        outline: 2px solid var(--primary-500);
        outline-offset: 2px;
    }
}

/* Touch Device Optimizations */
@media (hover: none) and (pointer: coarse) {
    .btn-primary-premium,
    .btn-secondary-premium,
    .nav-link-premium,
    .card-link-premium {
        min-height: 44px;
        display: flex;
        align-items: center;
        justify-content: center;
    }

    .premium-input {
        min-height: 44px;
        font-size: 16px;
    }

    .social-link {
        min-height: 44px;
        padding: var(--space-md);
    }
}

/* Performance Optimizations */
.hero-background-premium,
.training-background-premium {
    will-change: transform;
    transform: translateZ(0);
}

.floating-orb,
.floating-shape {
    will-change: transform;
    transform: translateZ(0);
}

/* Accessibility Enhancements */
.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.skip-link {
    position: absolute;
    top: -40px;
    left: 6px;
    background: var(--primary-600);
    color: white;
    padding: 8px;
    text-decoration: none;
    border-radius: 4px;
    z-index: 10000;
}

.skip-link:focus {
    top: 6px;
}

/* Blog Content Responsiveness */
.about-copy img {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius-lg);
    margin: 1.5rem 0;
}

.about-copy blockquote {
    border-left: 4px solid var(--primary-500);
    padding-left: 1.5rem;
    margin: 1.5rem 0;
    font-style: italic;
    color: var(--gray-600);
}

@media (max-width: 640px) {
    .about-copy {
        font-size: 1rem !important;
        line-height: 1.6 !important;
    }
}