/* ================================
   FSE Mobile Stylesheet
   Enhances mobile experience without modifying desktop
   Include after style.css
   ================================ */

/* ================================
   MOBILE NAVIGATION - Hamburger Menu
   ================================ */

/* Hamburger button - hidden on desktop */
.nav-hamburger {
    display: none;
    flex-direction: column;
    justify-content: space-around;
    width: 28px;
    height: 24px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0;
    z-index: 110;
}

.nav-hamburger span {
    width: 100%;
    height: 3px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: all 0.3s ease;
}

/* Hamburger animation when open */
.nav-hamburger.open span:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px);
}

.nav-hamburger.open span:nth-child(2) {
    opacity: 0;
}

.nav-hamburger.open span:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -6px);
}

/* Mobile menu overlay */
.nav-mobile-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    z-index: 99;
    opacity: 0;
    transition: opacity 0.3s ease;
    pointer-events: none;
}

.nav-mobile-overlay.visible {
    display: block;
    opacity: 1;
    pointer-events: auto;
}

@media (max-width: 768px) {
    .nav-hamburger {
        display: flex;
    }

    .nav-links {
        display: flex !important;
        flex-direction: column;
        position: fixed;
        top: 0;
        right: -280px;
        width: 280px;
        height: 100vh;
        background: var(--bg-secondary);
        padding: 5rem 2rem 2rem;
        gap: 0;
        border-left: 1px solid var(--border);
        transition: right 0.3s ease;
        z-index: 100;
        overflow-y: auto;
    }

    .nav-links.open {
        right: 0;
    }

    .nav-links a {
        padding: 1rem 0;
        font-size: 1.1rem;
        border-bottom: 1px solid var(--border);
    }

    .nav-links a:last-child {
        border-bottom: none;
    }

    .nav-mobile-overlay {
        display: block;
    }
}

/* ================================
   HERO SECTION - Mobile Optimizations
   ================================ */

@media (max-width: 768px) {
    .hero {
        min-height: auto;
        padding: 6rem 1.25rem 3rem;
    }

    .hero h1 {
        font-size: 2rem;
        line-height: 1.2;
    }

    .hero-badge {
        font-size: 0.75rem;
        padding: 0.4rem 0.75rem;
    }

    .hero-subtitle {
        font-size: 1rem;
        margin-bottom: 2rem;
    }

    .hero-stats {
        gap: 1.5rem;
    }

    .stat-value {
        font-size: 1.75rem;
    }

    .stat-label {
        font-size: 0.8rem;
    }

    .hero-disclaimer {
        font-size: 0.75rem;
        padding: 0.4rem 1rem;
        margin-top: 1rem;
    }
}

@media (max-width: 480px) {
    .hero h1 {
        font-size: 1.75rem;
    }

    .hero-stats {
        gap: 1rem;
    }

    .stat-value {
        font-size: 1.5rem;
    }
}

/* ================================
   SECTIONS - General Mobile Improvements
   ================================ */

@media (max-width: 768px) {
    .section {
        padding: 3rem 0;
    }

    .container {
        padding: 0 1rem;
    }

    .section-header {
        margin-bottom: 2rem;
    }

    .section-header h2 {
        font-size: 1.75rem;
    }

    .section-subtitle {
        font-size: 0.95rem;
    }

    .section-label {
        font-size: 0.75rem;
    }
}

/* ================================
   PROBLEM SECTION - Mobile Cards
   ================================ */

@media (max-width: 768px) {
    .problem-grid {
        gap: 1rem;
    }

    .problem-card {
        padding: 1.25rem;
    }

    .problem-stat {
        font-size: 2rem;
    }

    .problem-label {
        font-size: 0.85rem;
    }

    .problem-insight {
        flex-direction: column;
        text-align: center;
        padding: 1.25rem;
        gap: 1rem;
    }

    .insight-icon {
        width: 40px;
        height: 40px;
        font-size: 1.25rem;
        margin: 0 auto;
    }

    .insight-content h3 {
        font-size: 1.1rem;
    }

    .insight-content p {
        font-size: 0.9rem;
    }
}

/* ================================
   TIER TABS - Mobile Optimization
   ================================ */

@media (max-width: 768px) {
    .tier-tabs {
        flex-direction: column;
        gap: 0.25rem;
        padding: 0.25rem;
    }

    .tier-tab {
        padding: 0.75rem 1rem;
        flex-direction: row;
        justify-content: space-between;
        text-align: left;
    }

    .tier-range {
        font-size: 0.75rem;
    }
}

/* ================================
   LOSS BREAKDOWN - Mobile Layout
   ================================ */

@media (max-width: 768px) {
    .loss-breakdown {
        padding: 1.25rem;
    }

    .loss-breakdown h3 {
        font-size: 1.25rem;
    }

    .loss-intro {
        font-size: 0.9rem;
    }

    .loss-item {
        grid-template-columns: 1fr;
        gap: 0.5rem;
        padding: 1rem;
    }

    .loss-category {
        font-size: 0.95rem;
    }

    .loss-amount {
        text-align: left;
        font-size: 1.1rem;
    }

    .loss-desc {
        font-size: 0.8rem;
    }

    .loss-total {
        flex-direction: column;
        gap: 0.5rem;
        text-align: center;
        padding: 1rem;
    }

    .total-label {
        font-size: 0.9rem;
    }

    .total-amount {
        font-size: 1.25rem;
    }

    .savings-explanation {
        font-size: 0.8rem;
        padding: 0.5rem 0.75rem;
    }
}

/* ================================
   ESTIMATE SAVINGS BUTTON - Mobile
   ================================ */

@media (max-width: 768px) {
    .estimate-savings-btn {
        padding: 1.25rem 1.5rem;
        font-size: 1.1rem;
        margin-top: 2rem;
    }

    .estimate-savings-btn .btn-icon {
        font-size: 1.25rem;
    }
}

/* ================================
   SAVINGS CHART - Mobile
   ================================ */

@media (max-width: 768px) {
    .savings-chart {
        padding: 1.25rem;
    }

    .savings-chart h4 {
        font-size: 1rem;
        margin-bottom: 1rem;
    }

    .chart-bar-group {
        grid-template-columns: 70px 1fr;
        gap: 0.75rem;
    }

    .chart-label {
        font-size: 0.75rem;
    }

    .bar {
        height: 18px;
    }

    .chart-legend {
        gap: 1rem;
        font-size: 0.75rem;
    }

    .legend-before::before,
    .legend-after::before {
        width: 12px;
        height: 12px;
    }
}

/* ================================
   SAVINGS SUMMARY - Mobile
   ================================ */

@media (max-width: 768px) {
    .savings-summary {
        flex-direction: column;
        gap: 1.25rem;
        padding: 1.25rem;
    }

    .savings-summary.visible {
        padding: 1.25rem;
    }

    .summary-stat .summary-value {
        font-size: 1.5rem;
    }

    .summary-stat .summary-label {
        font-size: 0.8rem;
    }
}

/* ================================
   SOLUTION SECTION - Mobile Cards
   ================================ */

@media (max-width: 768px) {
    .solution-grid {
        gap: 1rem;
    }

    .solution-card {
        padding: 1.5rem;
    }

    .solution-icon {
        width: 40px;
        height: 40px;
        margin-bottom: 1rem;
    }

    .solution-icon svg {
        width: 20px;
        height: 20px;
    }

    .solution-card h3 {
        font-size: 1rem;
    }

    .solution-card p {
        font-size: 0.85rem;
    }

    .ml-advantage {
        padding: 1.5rem;
        gap: 1rem;
    }

    .ml-advantage-icon {
        width: 48px;
        height: 48px;
    }

    .ml-advantage-icon svg {
        width: 24px;
        height: 24px;
    }

    .ml-advantage-content h3 {
        font-size: 1.1rem;
    }

    .ml-advantage-content p {
        font-size: 0.9rem;
    }
}

/* ================================
   EVIDENCE SECTION - Mobile Tables
   ================================ */

@media (max-width: 768px) {
    .evidence-comparison {
        padding: 1.25rem;
    }

    .comparison-header h3 {
        font-size: 1.1rem;
    }

    .comparison-row {
        padding: 0.75rem;
        gap: 0.25rem;
    }

    .comparison-row.header-row {
        font-size: 0.7rem;
    }

    .method-col {
        font-size: 0.85rem;
    }

    .method-badge {
        font-size: 0.65rem;
        padding: 0.15rem 0.35rem;
    }

    .accuracy-col {
        font-size: 0.85rem;
    }

    .source-col {
        font-size: 0.7rem;
    }

    .comparison-insight {
        font-size: 0.85rem;
        padding: 0.75rem 1rem;
    }

    .aace-standards {
        padding: 1.25rem;
    }

    .aace-standards h3 {
        font-size: 1.1rem;
    }

    .aace-row {
        padding: 0.5rem;
        font-size: 0.8rem;
    }

    .aace-note {
        font-size: 0.8rem;
    }
}

/* ================================
   FUTURE VISION - Mobile Cards
   ================================ */

@media (max-width: 768px) {
    .future-products {
        gap: 1.5rem;
    }

    .future-card {
        padding: 1.5rem;
    }

    .future-badge {
        top: 1rem;
        right: 1rem;
        font-size: 0.65rem;
        padding: 0.25rem 0.5rem;
    }

    .future-icon {
        width: 48px;
        height: 48px;
        margin-bottom: 1rem;
    }

    .future-icon svg {
        width: 24px;
        height: 24px;
    }

    .future-card h3 {
        font-size: 1.25rem;
    }

    .future-tagline {
        font-size: 0.85rem;
    }

    .future-description > p {
        font-size: 0.9rem;
    }

    .future-feature {
        gap: 0.75rem;
    }

    .feature-icon {
        width: 28px;
        height: 28px;
    }

    .feature-icon svg {
        width: 14px;
        height: 14px;
    }

    .future-feature strong {
        font-size: 0.9rem;
    }

    .future-feature p {
        font-size: 0.8rem;
    }
}

/* ================================
   CTA SECTION - Mobile
   ================================ */

@media (max-width: 768px) {
    .cta-content {
        padding: 1rem 0;
    }

    .cta-content h2 {
        font-size: 1.5rem;
    }

    .cta-content > p {
        font-size: 0.95rem;
    }

    .cta-stats {
        gap: 1rem;
    }

    .cta-stat-value {
        font-size: 1.5rem;
    }

    .cta-stat-label {
        font-size: 0.8rem;
    }
}

/* ================================
   FOOTER - Mobile
   ================================ */

@media (max-width: 768px) {
    .footer {
        padding: 2rem 0;
    }

    .footer-brand {
        font-size: 1.25rem;
    }

    .brand-icon {
        width: 28px;
        height: 28px;
        font-size: 0.9rem;
    }

    .footer-tagline {
        font-size: 0.9rem;
    }

    .footer-copy {
        font-size: 0.8rem;
    }
}

/* ================================
   CUSTOM CALCULATOR - Mobile
   ================================ */

@media (max-width: 768px) {
    .custom-input-section {
        flex-direction: column;
        gap: 0.75rem;
        padding: 1rem;
    }

    .custom-input-section label {
        font-size: 0.9rem;
    }

    .custom-input-wrapper {
        width: 100%;
    }

    .custom-input-wrapper input {
        width: 100%;
    }

    .calculate-btn {
        width: 100%;
        justify-content: center;
    }

    .custom-savings-summary {
        flex-direction: column;
        gap: 1rem;
    }

    .custom-savings-summary.visible {
        padding: 1.25rem;
    }

    .custom-savings-value {
        font-size: 1.5rem;
    }
}

/* ================================
   TECHNOLOGY PAGE - Mobile
   ================================ */

@media (max-width: 768px) {
    .tech-accuracy-table {
        overflow-x: auto;
    }

    .accuracy-row {
        min-width: 500px;
        font-size: 0.85rem;
        padding: 0.75rem 1rem;
    }

    .tech-level {
        padding: 1.5rem;
    }

    .tech-level-header {
        flex-direction: column;
        text-align: center;
        gap: 1rem;
    }

    .tech-level-number {
        margin: 0 auto;
    }

    .tech-level-title h3 {
        font-size: 1.2rem;
    }

    .tech-level-content > p {
        font-size: 0.9rem;
    }

    .tech-level-stats {
        flex-wrap: wrap;
        justify-content: center;
        gap: 1rem;
    }

    .tech-stat {
        flex: 1 1 calc(50% - 0.5rem);
        min-width: 120px;
    }

    .tech-capabilities {
        gap: 1rem;
    }

    .tech-capability {
        padding: 1.5rem;
    }

    .tech-capability-icon {
        width: 48px;
        height: 48px;
    }

    .tech-capability h4 {
        font-size: 1rem;
    }

    .tech-capability p {
        font-size: 0.85rem;
    }

    .arch-diagram {
        padding: 0 0.5rem;
    }

    .arch-section {
        padding: 1rem;
    }

    .arch-section h4 {
        font-size: 0.9rem;
    }

    .arch-item {
        flex-direction: column;
        gap: 0.25rem;
        text-align: center;
    }

    .arch-label {
        font-size: 0.85rem;
    }

    .arch-detail {
        font-size: 0.75rem;
    }

    .arch-output {
        padding: 1rem;
    }

    .arch-output-item {
        font-size: 0.95rem;
    }

    .tech-features-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }

    .tech-features-category h5 {
        font-size: 0.8rem;
    }

    .tech-features-category li {
        font-size: 0.75rem;
    }
}

/* ================================
   UNICO PAGE - Mobile
   ================================ */

@media (max-width: 768px) {
    .unico-stats {
        gap: 1rem;
    }

    .unico-stat-card {
        padding: 1.5rem;
    }

    .unico-stat-label {
        font-size: 0.8rem;
    }

    .unico-stat-value {
        font-size: 1.75rem;
    }

    .unico-stat-note {
        font-size: 0.75rem;
    }

    .unico-breakdown {
        padding: 1.25rem;
    }

    .unico-breakdown h3 {
        font-size: 1.1rem;
    }

    .unico-loss-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }

    .unico-loss-item {
        padding: 1rem;
    }

    .unico-loss-category {
        font-size: 0.75rem;
        min-height: auto;
    }

    .unico-loss-amount {
        font-size: 0.95rem;
    }

    .unico-loss-recoverable {
        font-size: 0.7rem;
    }

    .unico-advantage {
        padding: 1.5rem;
    }

    .unico-advantage-icon {
        width: 48px;
        height: 48px;
    }

    .unico-advantage-content h3 {
        font-size: 1.2rem;
    }

    .unico-advantage-content p {
        font-size: 0.9rem;
    }

    .unico-deliverables {
        gap: 1rem;
    }

    .unico-deliverable {
        padding: 1.5rem;
    }

    .unico-deliverable-icon {
        width: 48px;
        height: 48px;
    }

    .unico-deliverable h4 {
        font-size: 1rem;
    }

    .unico-deliverable p {
        font-size: 0.8rem;
    }

    .unico-pricing {
        gap: 1rem;
    }

    .unico-price-card {
        padding: 1.5rem;
    }

    .unico-price-amount {
        font-size: 2rem;
    }

    .unico-price-features li {
        font-size: 0.85rem;
    }

    .unico-partnership {
        padding: 1.5rem;
    }

    .unico-partnership-header h2 {
        font-size: 1.5rem;
    }

    .unico-partnership-point {
        padding: 1rem;
    }

    .partnership-icon {
        width: 36px;
        height: 36px;
    }

    .unico-partnership-point strong {
        font-size: 0.9rem;
    }

    .unico-partnership-point span {
        font-size: 0.8rem;
    }

    .unico-cta h2 {
        font-size: 1.5rem;
    }

    .unico-cta-item {
        padding: 1.5rem 2rem;
    }

    .unico-cta-value {
        font-size: 2rem;
    }
}

/* ================================
   PRICING PAGE - Mobile
   ================================ */

@media (max-width: 768px) {
    .pricing-grid {
        gap: 1.5rem;
    }

    .pricing-card {
        padding: 1.5rem;
    }

    .pricing-badge {
        font-size: 0.65rem;
        padding: 0.35rem 1rem;
    }

    .pricing-header h3 {
        font-size: 1.25rem;
    }

    .pricing-amount .price {
        font-size: 2.25rem;
    }

    .pricing-features li {
        font-size: 0.85rem;
    }

    .negotiability-section {
        padding: 1.5rem;
    }

    .negotiability-icon {
        width: 48px;
        height: 48px;
    }

    .negotiability-content h3 {
        font-size: 1.1rem;
    }

    .negotiability-content p {
        font-size: 0.9rem;
    }
}

/* ================================
   SMALL MOBILE (< 480px)
   ================================ */

@media (max-width: 480px) {
    .container {
        padding: 0 0.75rem;
    }

    .section-header h2 {
        font-size: 1.5rem;
    }

    .problem-stat {
        font-size: 1.75rem;
    }

    .unico-loss-grid {
        grid-template-columns: 1fr;
    }

    .tech-features-grid {
        grid-template-columns: 1fr;
    }

    .unico-cta-item {
        padding: 1rem 1.5rem;
    }

    .unico-cta-value {
        font-size: 1.75rem;
    }
}

/* ================================
   TOUCH DEVICE OPTIMIZATIONS
   ================================ */

@media (hover: none) and (pointer: coarse) {
    /* Larger touch targets */
    .nav-links a {
        min-height: 44px;
        display: flex;
        align-items: center;
    }

    .tier-tab {
        min-height: 48px;
    }

    .estimate-savings-btn {
        min-height: 56px;
    }

    .calculate-btn {
        min-height: 44px;
    }

    /* Remove hover effects on touch */
    .solution-card:hover,
    .future-card:hover,
    .pricing-card:hover {
        transform: none;
    }
}

/* ================================
   LANDSCAPE PHONE ADJUSTMENTS
   ================================ */

@media (max-height: 500px) and (orientation: landscape) {
    .hero {
        min-height: auto;
        padding: 5rem 1rem 2rem;
    }

    .hero h1 {
        font-size: 1.75rem;
    }

    .hero-stats {
        flex-direction: row;
        gap: 2rem;
    }

    .nav-links {
        padding-top: 4rem;
    }
}