/* ============================================
   PORTFOLIO WEBSITE - RESPONSIVE STYLES
   Mobile-First Responsive Design
   ============================================ */

/* -------------------- Breakpoints -------------------- */
/*
   Mobile: < 640px (default)
   Tablet: 640px - 1024px
   Desktop: > 1024px
   Large Desktop: > 1280px
*/

/* -------------------- Tablet (640px and up) -------------------- */
@media screen and (max-width: 1024px) {
    :root {
        --font-size-5xl: 2.5rem;
        --font-size-4xl: 2rem;
        --spacing-3xl: 4rem;
    }

    /* Navigation */
    .nav-container {
        padding: 0 var(--spacing-md);
    }

    .nav-menu {
        gap: var(--spacing-lg);
    }

    /* Hero Section */
    .hero-title {
        font-size: var(--font-size-4xl);
    }

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

    /* About Section */
    .about-content {
        gap: var(--spacing-lg);
    }

    /* Bento Grid - Adjust to 2 columns */
    .bento-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .bento-card.large {
        grid-column: span 2;
        grid-row: span 2;
    }

    .bento-card.medium {
        grid-column: span 2;
        grid-row: span 1;
    }

    .bento-card.small {
        grid-column: span 1;
        grid-row: span 1;
    }

    .bento-card.wide {
        grid-column: span 2;
    }

    /* Packages Pop-Out - Tablet */
    .packages-stack {
        min-height: 450px;
    }

    .package-card {
        max-width: 280px;
        padding: var(--spacing-lg);
    }

    .packages-stack.revealing .package-card[data-index="0"] {
        transform: translateX(-360px) scale(1);
    }

    .packages-stack.revealing .package-card[data-index="1"] {
        transform: translateX(-120px) scale(1);
    }

    .packages-stack.revealing .package-card[data-index="2"] {
        transform: translateX(120px) scale(1);
    }

    .packages-stack.revealing .package-card[data-index="3"] {
        transform: translateX(360px) scale(1);
    }

    .package-icon {
        font-size: 2.5rem;
    }

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


    /* Stacked Cards */
    .stack-card {
        height: 450px;
    }

    .card-inner {
        padding: var(--spacing-lg);
    }

    .card-content h3 {
        font-size: var(--font-size-xl);
    }

    .card-content p {
        font-size: var(--font-size-base);
    }
}

/* -------------------- Mobile & Tablet Portrait -------------------- */
/* Applies to: phones (any orientation) + tablets in portrait mode */
@media screen and (max-width: 640px),
       screen and (max-width: 1024px) and (orientation: portrait) {
    :root {
        --font-size-5xl: 2rem;
        --font-size-4xl: 1.75rem;
        --font-size-3xl: 1.5rem;
        --spacing-xl: 2rem;
        --spacing-2xl: 3rem;
        --spacing-3xl: 3rem;
    }

    /* Animation Toggle */
    .animation-toggle {
        top: var(--spacing-md);
        right: var(--spacing-md);
        width: 40px;
        height: 40px;
    }

    /* Navigation - Mobile Optimization */
    /* Mobile uses drawer navigation instead of expandable desktop nav */
    /* Most mobile styles are in inline critical CSS for fast first paint */
    .main-nav {
        height: 56px;
        /* Enhanced floating effect - additional shadow layer */
        box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3),
                    0 0 0 1px rgba(255, 255, 255, 0.1);
    }

    .nav-container {
        padding: 0;
        height: 100%;
    }

    /* Override desktop collapsed state - mobile logo always visible */
    .main-nav .nav-logo {
        display: flex;
        opacity: 1;
        width: auto;
        position: static;
        transform: none;
        pointer-events: auto;
        overflow: visible;
        transition: none;
    }

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

    /* Hide company name on mobile */
    .company-name {
        display: none;
    }

    .nav-menu {
        position: fixed;
        top: 0;
        left: 0;
        height: 100vh;
        width: 280px;
        max-width: 75vw;
        display: flex;
        flex-direction: column;
        justify-content: flex-start;
        align-items: stretch;
        background: rgba(10, 22, 40, 1);
        padding: var(--spacing-2xl) var(--spacing-lg);
        gap: var(--spacing-md);
        /* Push drawer 16px further left to account for floating nav margin */
        transform: translateX(calc(-100% - 16px));
        opacity: 1;
        visibility: visible;
        transition: transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
        pointer-events: all;
        z-index: 1001;
        overflow-y: auto;
    }

    .nav-menu.open {
        transform: translateX(0);
        border-right: 1px solid rgba(255, 255, 255, 0.15);
        box-shadow: 4px 0 24px rgba(0, 0, 0, 0.5);
    }

    /* Mobile menu items: Staggered fade-in animation */
    .nav-menu li {
        display: block;
        width: 100%;
        opacity: 0;
        transform: translateX(-20px) rotateY(0deg);
        transition: opacity 0.3s ease, transform 0.3s ease;
    }

    .nav-menu.open li {
        opacity: 1;
        transform: translateX(0);
    }

    /* Staggered animation for drawer items - slower cascading effect */
    .nav-menu.open li:nth-child(1) { transition-delay: 0.2s; }
    .nav-menu.open li:nth-child(2) { transition-delay: 0.4s; }
    .nav-menu.open li:nth-child(3) { transition-delay: 0.6s; }
    .nav-menu.open li:nth-child(4) { transition-delay: 0.8s; }
    .nav-menu.open li:nth-child(5) { transition-delay: 1.0s; }
    .nav-menu.open li:nth-child(6) { transition-delay: 1.2s; }

    /* Reset delays when closing for instant fade-out */
    .nav-menu:not(.open) li {
        transition-delay: 0s;
    }

    /* Mobile nav links - enhanced touch targets and visibility */
    .nav-menu .nav-link {
        display: block;
        padding: var(--spacing-sm) var(--spacing-md);
        width: 100%;
        text-align: left;
        color: var(--color-text-primary);
        opacity: 1;
        font-weight: 500;
        font-size: 1.1rem;
        text-shadow: 0 1px 3px rgba(0, 0, 0, 0.3),
                     0 0 8px rgba(255, 255, 255, 0.1);
    }

    /* Active/hover state for mobile menu items */
    .nav-menu.open .nav-link:active {
        background: rgba(74, 144, 226, 0.25);
        box-shadow: 0 0 16px rgba(74, 144, 226, 0.4);
    }

    /* Navigation Backdrop - Mobile Drawer Overlay */
    .nav-backdrop {
        position: fixed;
        top: 0;
        left: 0;
        width: 100vw;
        height: 100vh;
        background: rgba(0, 0, 0, 0.7); /* Solid dark overlay - no blur */
        /* backdrop-filter: blur(2px); */ /* REMOVED - was blurring entire screen */
        opacity: 0;
        pointer-events: none;
        transition: opacity 0.8s ease;
        z-index: 1000;
    }

    .nav-backdrop.active {
        opacity: 1;
        pointer-events: none; /* Changed from 'all' - backdrop is purely visual, clicks pass through to menu/toggle */
    }

    /* Nav Toggle - Perfect Centering on Mobile (larger for touch) */
    .nav-toggle {
        display: flex;
        position: absolute;
        right: var(--spacing-md);
        top: 50%;
        transform: translateY(-50%);
        width: 40px;
        height: 40px;
        padding: 8px;
        z-index: 1100;
        pointer-events: auto;
        cursor: pointer;
        transition: transform 0.2s ease;
    }

    /* Highlight X icon when drawer is open */
    .nav-toggle.active {
        background: rgba(74, 144, 226, 0.15);
        border-radius: 8px;
        box-shadow: 0 0 16px rgba(74, 144, 226, 0.4),
                    0 0 32px rgba(74, 144, 226, 0.2);
    }

    .nav-toggle:hover {
        transform: translateY(-50%) scale(1.05);
    }

    .nav-toggle .line {
        width: 24px;
        height: 2.5px;
        pointer-events: none;
    }

    /* Brighten X icon lines when active */
    .nav-toggle.active .line {
        background: #ffffff;
        box-shadow: 0 0 12px rgba(255, 255, 255, 0.8),
                    0 0 20px rgba(74, 144, 226, 0.6);
    }

    .nav-toggle .line1 {
        top: 14px; /* Adjusted for 40px container */
    }

    .nav-toggle .line2 {
        bottom: 14px; /* Adjusted for 40px container */
    }

    /* Mobile X icon - 5px offset for visual balance (40px container) */
    .nav-toggle.active .line1 {
        transform: translateX(-50%) translateY(5px) rotate(45deg);
    }

    .nav-toggle.active .line2 {
        transform: translateX(-50%) translateY(-5px) rotate(-45deg);
    }

    /* Hero Section */
    .hero-section {
        padding: var(--spacing-2xl) var(--spacing-md);
        min-height: calc(100vh - 56px);
        /* Account for floating nav: 16px top + 56px height + spacing */
        padding-top: calc(72px + var(--spacing-xl));
    }

    .hero-title {
        font-size: var(--font-size-3xl);
        letter-spacing: -1px;
    }

    .hero-title .word {
        margin: 0 0.2em;
    }

    .hero-subtitle {
        font-size: var(--font-size-base);
        margin-bottom: var(--spacing-xl);
    }

    .hero-cta {
        flex-direction: column;
        width: 100%;
        gap: var(--spacing-sm);
    }

    .btn {
        width: 100%;
        text-align: center;
    }

    .scroll-indicator {
        bottom: var(--spacing-lg);
        font-size: 0.75rem;
    }

    /* Content Container */
    .content-container {
        padding: 0 var(--spacing-md);
        max-width: 100%;
    }

    /* Ensure all sections have proper breathing room */
    section {
        padding-left: var(--spacing-md);
        padding-right: var(--spacing-md);
    }

    /* Section Headers */
    .section-header {
        margin-bottom: var(--spacing-xl);
    }

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

    .section-subtitle {
        font-size: var(--font-size-base);
    }

    /* About Section */
    .about-section {
        padding: var(--spacing-2xl) 0;
    }

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

    .about-text {
        font-size: var(--font-size-base);
    }

    .about-text p {
        margin-bottom: var(--spacing-md);
    }

    /* Packages Pop-Out - Mobile */
    .packages-section {
        padding: var(--spacing-2xl) 0;
    }

    /* Mobile package cards - Independent layout like products */
    .packages-stack {
        display: flex;
        flex-direction: column;
        gap: var(--spacing-lg);
        position: relative;
        min-height: auto;
    }

    .package-card {
        position: relative;
        width: 100%;
        max-width: 100%;
        padding: var(--spacing-lg);
        transform: none !important;
        opacity: 1;
        margin-bottom: 0;
    }

    /* Remove all stacking transforms on mobile */
    .package-card[data-index="0"],
    .package-card[data-index="1"],
    .package-card[data-index="2"],
    .package-card[data-index="3"] {
        position: relative;
        transform: none !important;
    }

    /* Remove revealing animation on mobile */
    .packages-stack.revealing .package-card[data-index="0"],
    .packages-stack.revealing .package-card[data-index="1"],
    .packages-stack.revealing .package-card[data-index="2"],
    .packages-stack.revealing .package-card[data-index="3"] {
        transform: none !important;
    }

    .package-icon {
        font-size: 2rem;
        margin-bottom: var(--spacing-sm);
    }

    .package-title {
        font-size: var(--font-size-xl);
        margin-bottom: var(--spacing-xs);
    }

    .package-description {
        font-size: var(--font-size-sm);
        margin-bottom: var(--spacing-md);
    }

    .package-features li {
        font-size: var(--font-size-sm);
        padding: 0.4rem 0;
    }

    /* Feature Tabs - Mobile Optimization */
    .features-tabs-section {
        min-height: 240vh; /* Virtual scroll progression on mobile */
    }

    .features-sticky-wrapper {
        top: 70px; /* Account for mobile nav */
    }

    .feature-tabs {
        gap: var(--spacing-xs);
        padding-bottom: var(--spacing-sm);
    }

    .feature-tab {
        padding: var(--spacing-sm) var(--spacing-md);
        font-size: var(--font-size-sm);
    }

    .tab-inner {
        grid-template-columns: 1fr; /* Stack on mobile */
        gap: var(--spacing-lg);
    }

    .tab-icon {
        font-size: var(--font-size-lg);
    }

    /* Core Features Tab Layout - Stack Image Below Text */
    .tab-inner {
        grid-template-columns: 1fr !important;
        gap: var(--spacing-lg);
        padding: var(--spacing-lg);
    }

    .tab-text {
        order: 1;
    }

    .tab-image {
        order: 2;
        height: auto;
        max-height: 250px;
    }

    .tab-image img {
        width: 100%;
        height: auto;
        object-fit: contain;
    }

    .tab-text h3 {
        font-size: var(--font-size-xl);
    }

    .tab-text p {
        font-size: var(--font-size-base);
    }

    /* Bento Grid - Single column on mobile */
    .bento-section {
        padding: var(--spacing-2xl) 0;
    }

    /* Product pages: Flex layout for mobile bento */
    .bento-grid {
        display: flex !important;
        flex-direction: column !important;
        gap: var(--spacing-md);
        grid-template-columns: unset;
        grid-auto-rows: unset;
    }

    .bento-card {
        padding: var(--spacing-md);
        min-height: auto;
    }

    .bento-card.large,
    .bento-card.medium,
    .bento-card.small,
    .bento-card.wide {
        grid-column: unset;
        grid-row: unset;
    }

    /* Fix large spacing in product pages (sections with bento-grid, no tabs) */
    .features-tabs-section:has(.bento-grid) {
        min-height: auto !important;
        padding: var(--spacing-2xl) 0 var(--spacing-xl) 0;
    }

    /* Fallback for browsers without :has() support - target bento-grid parent */
    @supports not (selector(:has(*))) {
        .features-tabs-section .bento-grid {
            /* Signal parent should be auto height via this marker class approach */
        }
        /* This fallback isn't perfect but won't break main page */
    }

    .bento-card h3 {
        font-size: var(--font-size-xl);
    }

    .bento-card h4 {
        font-size: var(--font-size-lg);
    }

    .bento-card h5 {
        font-size: var(--font-size-2xl);
    }

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


    /* Stacked Cards */
    .stacked-cards-section {
        padding: var(--spacing-2xl) 0;
        min-height: auto;
    }

    .stack-card {
        position: relative;
        top: auto;
        height: auto;
        margin-bottom: var(--spacing-md);
    }

    .card-inner {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
        padding: var(--spacing-md);
    }

    .card-image .image-placeholder {
        height: 200px;
    }

    .card-content h3 {
        font-size: var(--font-size-xl);
        margin-bottom: var(--spacing-sm);
    }

    .card-content p {
        font-size: var(--font-size-base);
        margin-bottom: var(--spacing-md);
    }

    .card-tags {
        gap: var(--spacing-xs);
    }

    .tag {
        font-size: 0.75rem;
        padding: 0.25rem 0.5rem;
    }

    /* Disable stacking effect on mobile */
    .stack-card[data-card="1"],
    .stack-card[data-card="2"],
    .stack-card[data-card="3"],
    .stack-card[data-card="4"] {
        transform: none;
        opacity: 1;
    }

    .stack-card.spreading,
    .stack-card.passed {
        transform: none;
        opacity: 1;
    }

    /* Contact Form Modal - Mobile Optimization */
    .modal-container {
        width: calc(100% - 20px);
        max-height: 95vh;
        padding: 0;
    }

    .modal-content {
        padding: var(--spacing-lg);
        border-radius: var(--border-radius-md);
    }

    .modal-close {
        width: 36px;
        height: 36px;
        top: var(--spacing-sm);
        right: var(--spacing-sm);
    }

    .modal-header {
        margin-bottom: var(--spacing-lg);
    }

    .modal-header h2 {
        font-size: var(--font-size-2xl);
    }

    .modal-header p {
        font-size: var(--font-size-sm);
    }

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

    .form-group label {
        font-size: var(--font-size-sm);
        margin-bottom: var(--spacing-xs);
    }

    .form-input,
    .form-input textarea {
        padding: var(--spacing-sm);
        font-size: var(--font-size-base);
        min-height: 44px;
    }

    .form-input textarea {
        min-height: 120px;
    }

    .form-submit-btn {
        width: 100%;
        padding: var(--spacing-md);
        font-size: var(--font-size-base);
    }

    /* Footer - Mobile Grid Layout */
    .main-footer {
        padding: var(--spacing-xl) 0;
        font-size: var(--font-size-sm);
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }

    .footer-column {
        text-align: left;
    }

    .footer-heading {
        font-size: var(--font-size-lg);
        margin-bottom: var(--spacing-sm);
    }

    .footer-links {
        margin-bottom: var(--spacing-md);
    }

    .footer-links li {
        padding: var(--spacing-xs) 0;
    }

    .footer-links a,
    .footer-links span {
        font-size: var(--font-size-sm);
        min-height: 44px;
        display: inline-flex;
        align-items: center;
    }

    .footer-bottom {
        flex-direction: column;
        gap: var(--spacing-sm);
        text-align: center;
    }

    /* Typography & Text Alignment - Mobile */
    body {
        font-size: 16px;
        line-height: 1.65;
    }

    .section-header {
        text-align: center;
    }

    .about-text {
        text-align: left;
    }

    .about-highlight {
        font-size: var(--font-size-lg);
        line-height: 1.7;
    }

    /* Ensure readable text on all mobile elements */
    p, li, span {
        line-height: 1.65;
    }

    /* Images - Mobile Constraints */
    .about-image img,
    .product-screenshot img,
    .tab-image img {
        width: 100%;
        height: auto;
        max-width: 100%;
        object-fit: contain;
    }

    /* Ensure all images are responsive on mobile */
    img {
        max-width: 100%;
        height: auto;
    }

    .about-image {
        max-height: 300px;
        overflow: hidden;
    }

    /* Product/feature images should maintain aspect ratio */
    .product-screenshot,
    .tab-image,
    .bento-card img {
        max-width: 100%;
        height: auto;
        border-radius: var(--border-radius-sm);
    }

    /* Bokeh elements - reduce size and make more subtle on mobile */
    .bokeh-1,
    .bokeh-2,
    .bokeh-3,
    .bokeh-4 {
        width: 200px;
        height: 200px;
        opacity: 0.08;
    }
}

/* -------------------- Very Small Mobile (< 375px) -------------------- */
@media screen and (max-width: 375px) {
    :root {
        --font-size-5xl: 1.75rem;
        --font-size-4xl: 1.5rem;
        --font-size-3xl: 1.25rem;
        --spacing-lg: 1.5rem;
    }

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

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

    .bento-card {
        min-height: 150px;
    }
}

/* -------------------- Large Desktop (> 1280px) -------------------- */
@media screen and (min-width: 1280px) {
    .content-container {
        max-width: 1400px;
    }

    .hero-title {
        font-size: 4rem;
    }

    .section-title {
        font-size: 3rem;
    }

    .bento-grid {
        gap: var(--spacing-lg);
    }

    .stack-card {
        height: 550px;
    }
}

/* -------------------- Touch Device Optimizations -------------------- */
@media (hover: none) and (pointer: coarse) {
    /* Remove hover effects on touch devices */
    .btn:hover,
    .bento-card:hover,
    .nav-link:hover {
        transform: none;
    }


    /* Increase touch targets */
    .btn,
    .nav-link,
    .animation-toggle,
    .nav-toggle {
        min-height: 44px;
        min-width: 44px;
    }

    /* Remove parallax on mobile for better performance */
    [data-animate="parallax"] {
        transform: none !important;
    }

    .parallax-foreground,
    .parallax-mid,
    .parallax-background {
        transform: none !important;
    }
}

/* -------------------- Landscape Orientation (Mobile) -------------------- */
@media screen and (max-height: 600px) and (orientation: landscape) {
    .hero-section {
        min-height: auto;
        padding: var(--spacing-xl) var(--spacing-md);
    }

    .hero-title {
        font-size: var(--font-size-3xl);
        margin-bottom: var(--spacing-sm);
    }

    .hero-subtitle {
        margin-bottom: var(--spacing-md);
    }

    .scroll-indicator {
        display: none;
    }

    .stack-card {
        height: 400px;
    }
}

/* -------------------- Print Styles -------------------- */
@media print {
    /* Hide interactive elements */
    .animation-toggle,
    .nav-toggle,
    .scroll-indicator,
    .bokeh-overlay,
    .background-layer {
        display: none;
    }

    /* Adjust colors for print */
    body {
        background: white;
        color: black;
    }

    .hero-title,
    .section-title {
        color: black;
        -webkit-text-fill-color: black;
    }

    /* Remove animations */
    * {
        animation: none !important;
        transition: none !important;
    }

    /* Adjust spacing for print */
    section {
        page-break-inside: avoid;
    }

    .stack-card {
        position: relative;
        page-break-inside: avoid;
    }
}

/* -------------------- High Contrast Mode -------------------- */
@media (prefers-contrast: high) {
    :root {
        --color-text-primary: #ffffff;
        --color-text-secondary: #ffffff;
        --color-bg-dark: #000000;
    }

    .btn,
    .bento-card,
    .card-inner {
        border-width: 2px;
    }

    .nav-link::after {
        height: 3px;
    }
}

/* -------------------- Reduced Motion Support -------------------- */
@media (prefers-reduced-motion: reduce) {
    .features-tabs-section {
        min-height: auto !important; /* No scroll hijacking */
    }

    .tab-panel {
        transition: opacity 0.2s ease !important;
        transform: none !important;
    }

    .tab-progress-fill {
        transition: width 0.2s ease !important;
    }

    .feature-tab {
        transition: all 0.2s ease !important;
    }

    @keyframes tabActivePulse {
        0%, 100% { opacity: 1; }
    }
}

/* -------------------- Dark Mode (if system preference changes) -------------------- */
@media (prefers-color-scheme: light) {
    /* Override for light mode if needed - currently designed for dark */
    /* This portfolio is designed for dark mode by default */
}

/* ============================================
   MOBILE-SPECIFIC OVERRIDES
   Additional mobile-first improvements
   ============================================ */

/* Mobile: Ensure cards don't overflow */
@media screen and (max-width: 640px) {
    /* Prevent horizontal scroll */
    body {
        overflow-x: hidden;
    }


    /* Ensure selling points are readable */
    .product-features {
        flex-direction: column;
    }

    .product-features li {
        width: 100%;
    }
}