/* AWS Projects - Enterprise Design with Accordion */

/* CSS Variables */
:root {
    /* AWS Brand Colors */
    --aws-orange: #FF9900;
    --aws-dark: #232F3E;
    --aws-light: #FFAC1C;
    --aws-gradient: linear-gradient(135deg, #FF9900 0%, #232F3E 100%);
    
    /* Neutral Colors */
    --white: #ffffff;
    --off-white: #fafafa;
    --light-gray: #f5f5f7;
    --gray: #86868b;
    --dark-gray: #1d1d1f;
    --black: #000000;

    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

    /* Spacing Scale */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2rem;
    --space-xl: 3rem;
    --space-2xl: 4rem;
    --space-3xl: 6rem;
    --space-4xl: 8rem;

    /* Shadows */
    --shadow-subtle: 0 1px 3px rgba(0, 0, 0, 0.05);
    --shadow-soft: 0 4px 12px rgba(0, 0, 0, 0.08);
    --shadow-medium: 0 8px 24px rgba(0, 0, 0, 0.12);

    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;

    /* Transitions */
    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-smooth: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-primary);
    font-size: 1rem;
    line-height: 1.6;
    color: var(--dark-gray);
    background-color: var(--white);
    overflow-x: hidden;
}

/* Back Button - Glassmorphic with AWS Shimmer */
.back-button {
    position: fixed;
    top: var(--space-lg);
    left: var(--space-lg);
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    color: var(--aws-orange);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.9rem;
    z-index: 1000;
    padding: var(--space-sm) var(--space-lg);
    border-radius: 50px;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    transition: all var(--transition-smooth);
    box-shadow: var(--shadow-subtle);
    overflow: hidden;
}

.back-button::before {
    content: '';
    position: absolute;
    top: 0;
    left: -40%;
    width: 40%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 153, 0, 0.4), transparent);
    transform: translateX(-100%);
    transition: transform 0.6s ease;
    z-index: 1;
    pointer-events: none;
}

.back-button:hover::before {
    transform: translateX(350%);
}

.back-button:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-soft);
}

.back-button svg {
    transition: transform var(--transition-fast);
    position: relative;
    z-index: 2;
}

.back-button span {
    position: relative;
    z-index: 2;
}

.back-button:hover svg {
    transform: translateX(-3px);
}

/* Side Navigation */
.side-nav {
    position: fixed;
    top: 50%;
    right: var(--space-lg);
    transform: translateY(-50%);
    z-index: 1000;
    display: none;
    flex-direction: column;
    gap: var(--space-md);
    opacity: 0;
    transition: opacity var(--transition-smooth);
}

.side-nav.visible {
    opacity: 1;
}

@media (min-width: 1024px) {
    .side-nav {
        display: flex;
    }
}

.side-nav .nav-item {
    font-family: var(--font-primary);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--gray);
    text-decoration: none;
    letter-spacing: -0.01em;
    transition: all var(--transition-fast);
    text-align: right;
    padding: var(--space-xs) 0;
    position: relative;
}

.side-nav .nav-item::after {
    content: '';
    position: absolute;
    right: -var(--space-sm);
    top: 50%;
    transform: translateY(-50%);
    width: 4px;
    height: 4px;
    background: var(--aws-orange);
    border-radius: 50%;
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.side-nav .nav-item:hover {
    color: var(--aws-orange);
    transform: translateX(-2px);
}

.side-nav .nav-item.active {
    color: var(--aws-orange);
    font-weight: 600;
}

.side-nav .nav-item.active::after {
    opacity: 1;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--white);
    position: relative;
    overflow: hidden;
}

.aws-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    pointer-events: none;
}

.aws-orb-1 {
    position: absolute;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(255, 153, 0, 0.15) 0%, transparent 70%);
    border-radius: 50%;
    top: 10%;
    left: 10%;
    animation: orbFloat 20s ease-in-out infinite;
}

.aws-orb-2 {
    position: absolute;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(35, 47, 62, 0.1) 0%, transparent 70%);
    border-radius: 50%;
    top: 60%;
    right: 15%;
    animation: orbFloat 25s ease-in-out infinite;
    animation-delay: -8s;
}

.aws-orb-3 {
    position: absolute;
    width: 250px;
    height: 250px;
    background: radial-gradient(circle, rgba(255, 172, 28, 0.12) 0%, transparent 70%);
    border-radius: 50%;
    bottom: 20%;
    left: 50%;
    animation: orbFloat 18s ease-in-out infinite;
    animation-delay: -12s;
}

@keyframes orbFloat {
    0%, 100% {
        transform: translateY(0px) scale(1);
    }
    25% {
        transform: translateY(-30px) scale(1.05);
    }
    50% {
        transform: translateY(20px) scale(0.95);
    }
    75% {
        transform: translateY(-15px) scale(1.02);
    }
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
    position: relative;
    z-index: 2;
}

.hero-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
    opacity: 0;
    transform: translateY(30px);
    animation: heroFadeIn 1s var(--transition-slow) forwards;
    animation-delay: 0.3s;
}

.hero-title {
    font-size: clamp(3rem, 8vw, 6rem);
    font-weight: 700;
    line-height: 1.1;
    color: var(--black);
    margin-bottom: var(--space-md);
    letter-spacing: -0.02em;
    background: var(--aws-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: clamp(1.125rem, 2.5vw, 1.5rem);
    font-weight: 400;
    line-height: 1.5;
    color: var(--gray);
    max-width: 600px;
    margin: 0 auto;
    letter-spacing: -0.01em;
}

@keyframes heroFadeIn {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Projects Accordion Section */
.projects-accordion-section {
    padding: var(--space-4xl) 0;
    background: var(--white);
}

.accordion-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
}

/* Accordion Item */
.accordion-item {
    background: var(--white);
    border: 1px solid rgba(0, 0, 0, 0.08);
    border-radius: var(--radius-xl);
    overflow: hidden;
    transition: all var(--transition-smooth);
    box-shadow: var(--shadow-subtle);
}

.accordion-item:hover {
    box-shadow: var(--shadow-soft);
}

.accordion-item.active {
    box-shadow: var(--shadow-medium);
    border-color: rgba(255, 153, 0, 0.3);
}

/* Accordion Header (Collapsed View) */
.accordion-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-xl);
    cursor: pointer;
    transition: all var(--transition-smooth);
    gap: var(--space-lg);
}

.accordion-header:hover {
    background: var(--light-gray);
}

.accordion-header-content {
    display: flex;
    align-items: flex-start;
    gap: var(--space-lg);
    flex: 1;
}

.accordion-thumbnail {
    width: 80px;
    height: 80px;
    background: var(--aws-gradient);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: all var(--transition-smooth);
}

.accordion-thumbnail i {
    font-size: 2rem;
    color: var(--white);
}

.accordion-item:hover .accordion-thumbnail {
    transform: scale(1.05);
}

.accordion-info {
    flex: 1;
}

.accordion-number {
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--aws-orange);
    margin-bottom: var(--space-xs);
}

.accordion-title {
    font-size: clamp(1.5rem, 3vw, 2rem);
    font-weight: 600;
    line-height: 1.2;
    color: var(--black);
    margin-bottom: var(--space-sm);
    letter-spacing: -0.01em;
}

.accordion-summary {
    font-size: 1rem;
    line-height: 1.6;
    color: var(--gray);
    margin-bottom: var(--space-md);
}

.accordion-tags {
    display: flex;
    gap: var(--space-xs);
    flex-wrap: wrap;
}

.tag {
    background: rgba(255, 153, 0, 0.1);
    color: var(--aws-dark);
    padding: 0.35rem 0.75rem;
    border-radius: var(--radius-sm);
    font-size: 0.8rem;
    font-weight: 500;
    border: 1px solid rgba(255, 153, 0, 0.2);
}

/* Accordion Toggle Button */
.accordion-toggle {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-lg);
    background: var(--aws-gradient);
    color: var(--white);
    border: none;
    border-radius: var(--radius-md);
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-smooth);
    white-space: nowrap;
    flex-shrink: 0;
}

.accordion-toggle:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-soft);
}

.accordion-toggle i {
    transition: transform var(--transition-smooth);
}

.accordion-item.active .accordion-toggle i {
    transform: rotate(180deg);
}

/* Accordion Content (Expanded View) */
.accordion-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.accordion-item.active .accordion-content {
    max-height: 10000px;
}

.accordion-content-inner {
    padding: 0 var(--space-xl) var(--space-xl);
    border-top: 1px solid rgba(0, 0, 0, 0.05);
    padding-top: var(--space-xl);
}

/* Project Content */
.project-content {
    margin-bottom: var(--space-3xl);
}

.section-subtitle {
    font-size: clamp(1.5rem, 3vw, 2rem);
    font-weight: 600;
    line-height: 1.2;
    color: var(--black);
    margin-bottom: var(--space-md);
    letter-spacing: -0.01em;
}

.content-text {
    font-size: 1.125rem;
    line-height: 1.7;
    color: var(--dark-gray);
    margin-bottom: var(--space-md);
}

.content-list {
    list-style: none;
    padding: 0;
    margin: var(--space-md) 0;
}

.content-list li {
    font-size: 1rem;
    line-height: 1.6;
    color: var(--dark-gray);
    margin-bottom: var(--space-sm);
    padding-left: var(--space-md);
    position: relative;
}

.content-list li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--aws-orange);
    font-weight: bold;
    font-size: 1.2em;
}

/* Feature List with Checkmarks */
.feature-list-check {
    list-style: none;
    padding: 0;
    margin: var(--space-md) 0;
}

.feature-list-check li {
    font-size: 1rem;
    line-height: 1.6;
    color: var(--dark-gray);
    margin-bottom: var(--space-md);
    padding-left: var(--space-lg);
    position: relative;
}

.feature-list-check li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--aws-orange);
    font-weight: bold;
    font-size: 1.3em;
}

.feature-list-check li strong {
    color: var(--black);
    font-weight: 600;
    margin-right: 0.3em;
}

/* Solution Features Grid */
.solution-features {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-lg);
    margin-top: var(--space-xl);
}

.feature-item {
    padding: var(--space-xl);
    background: var(--off-white);
    border-left: 4px solid var(--aws-orange);
    border-radius: var(--radius-sm);
    transition: all var(--transition-smooth);
}

.feature-item:hover {
    background: var(--light-gray);
    transform: translateX(4px);
    box-shadow: var(--shadow-subtle);
}

.feature-item h4 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--black);
    margin-bottom: var(--space-sm);
    letter-spacing: -0.01em;
}

.feature-item p {
    font-size: 1rem;
    line-height: 1.6;
    color: var(--gray);
    margin: 0;
}

/* Process Steps */
.process-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-lg);
    margin-top: var(--space-lg);
}

.process-step {
    text-align: center;
    padding: var(--space-lg);
}

.step-number {
    display: block;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--aws-orange);
    margin-bottom: var(--space-sm);
}

.process-step p {
    font-size: 0.95rem;
    line-height: 1.5;
    color: var(--gray);
}

/* Impact Quote */
.impact-quote {
    font-size: clamp(1.25rem, 2.5vw, 1.75rem);
    line-height: 1.4;
    color: var(--dark-gray);
    font-style: italic;
    font-weight: 400;
    padding: var(--space-xl);
    background: var(--light-gray);
    border-radius: var(--radius-xl);
    border-left: 4px solid var(--aws-orange);
    position: relative;
    margin: var(--space-lg) 0;
}

.quote-attribution {
    display: block;
    font-size: 1rem;
    font-style: normal;
    font-weight: 500;
    color: var(--gray);
    margin-top: var(--space-sm);
}

/* Inline Media (Videos and Images) */
.inline-media {
    margin-top: var(--space-xl);
    margin-bottom: var(--space-xl);
}

.media-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--dark-gray);
    margin-bottom: var(--space-md);
}

/* Inline Video Wrapper */
.video-wrapper-inline {
    position: relative;
    width: 100%;
    padding-bottom: 56.25%; /* 16:9 aspect ratio */
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-medium);
    background: var(--light-gray);
}

.video-wrapper-inline iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: none;
}

/* Inline Image Wrapper */
.image-wrapper-inline {
    width: 100%;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-medium);
    background: var(--light-gray);
}

.image-wrapper-inline img {
    width: 100%;
    height: auto;
    display: block;
    object-fit: contain;
}

/* Responsive Design */
@media (max-width: 768px) {
    .back-button {
        top: var(--space-sm);
        left: var(--space-sm);
    }

    .hero-container,
    .accordion-container {
        padding: 0 var(--space-sm);
    }

    .projects-accordion-section {
        padding: var(--space-3xl) 0;
    }

    .accordion-header {
        flex-direction: column;
        align-items: flex-start;
        padding: var(--space-lg);
    }

    .accordion-header-content {
        flex-direction: column;
        gap: var(--space-md);
    }

    .accordion-thumbnail {
        width: 60px;
        height: 60px;
    }

    .accordion-thumbnail i {
        font-size: 1.5rem;
    }

    .accordion-toggle {
        width: 100%;
        justify-content: center;
    }

    .accordion-content-inner {
        padding: var(--space-lg);
    }

    .solution-features,
    .process-steps {
        grid-template-columns: 1fr;
    }

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

@media (max-width: 480px) {
    .back-button span {
        display: none;
    }

    .accordion-header {
        padding: var(--space-md);
    }

    .accordion-content-inner {
        padding: var(--space-md);
    }
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--light-gray);
    border-radius: var(--radius-sm);
}

::-webkit-scrollbar-thumb {
    background: var(--aws-gradient);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--aws-orange);
}

html {
    scrollbar-width: thin;
    scrollbar-color: var(--aws-orange) var(--light-gray);
}

/* Image Lightbox Styles */
.zoomable-image {
    cursor: zoom-in;
    transition: opacity var(--transition-fast);
}

.zoomable-image:hover {
    opacity: 0.9;
}

.image-lightbox {
    display: none;
    position: fixed;
    z-index: 9999;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.95);
    cursor: zoom-out;
    animation: lightboxFadeIn 0.3s ease;
}

.image-lightbox.active {
    display: flex;
    align-items: center;
    justify-content: center;
}

.lightbox-close {
    position: absolute;
    top: var(--space-lg);
    right: var(--space-xl);
    color: var(--white);
    font-size: 3rem;
    font-weight: 300;
    cursor: pointer;
    z-index: 10000;
    transition: all var(--transition-fast);
    line-height: 1;
}

.lightbox-close:hover {
    color: var(--aws-orange);
    transform: scale(1.1);
}

.lightbox-content {
    max-width: 95%;
    max-height: 95%;
    object-fit: contain;
    animation: lightboxZoomIn 0.3s ease;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}

@keyframes lightboxFadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes lightboxZoomIn {
    from {
        transform: scale(0.8);
        opacity: 0;
    }
    to {
        transform: scale(1);
        opacity: 1;
    }
}

@media (max-width: 768px) {
    .lightbox-close {
        top: var(--space-md);
        right: var(--space-md);
        font-size: 2.5rem;
    }
    
    .lightbox-content {
        max-width: 98%;
        max-height: 98%;
    }
}