/* Font loading optimization */
@font-face {
    font-family: 'Archivo';
    font-display: swap;
}

@font-face {
    font-family: 'Inter';
    font-display: swap;
}

/* Reset and base styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Archivo', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background-color: #ffffff;
    line-height: 1.6;
    color: #000;
    min-height: 100vh;
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(99, 99, 99, 0.1);
    z-index: 1000;
    padding: 20px 0;
}

.header .container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 40px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-family: 'Archivo', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    font-weight: 700;
    font-size: 24px;
    color: #000000;
    margin: 0;
    letter-spacing: 1px;
    text-decoration: none;
    transition: color 0.3s ease;
}

.logo:hover {
    color: #FF6B9D;
}

.nav ul {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
    gap: 40px;
}

.nav a {
    font-family: 'Archivo', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    font-weight: 500;
    font-size: 16px;
    color: #636363;
    text-decoration: none;
    transition: color 0.3s ease;
    position: relative;
}

.nav a:hover {
    color: #FF6B9D;
}

.nav a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: #FF6B9D;
    transition: width 0.3s ease;
}

.nav a:hover::after {
    width: 100%;
}

/* Main Container */
.main {
    padding-top: 80px;
    max-width: 1200px;
    margin: 0 auto;
    padding-left: 40px;
    padding-right: 40px;
}

/* Hero Section */
.hero-section {
    padding: 80px 0 80px 0;
    background-color: #ffffff;
    max-width: 1200px;
    margin: 0 auto;
}

.hero-content-wrapper {
    display: flex;
    gap: 80px;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
}

.hero-left {
    flex: 1;
    max-width: 500px;
}

.hero-title {
    font-family: 'Archivo', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    font-weight: 700;
    font-size: 48px;
    color: #000;
    margin-bottom: 24px;
    line-height: 1.2;
}

.hero-subtitle-main {
    font-family: 'Archivo', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    font-weight: 400;
    font-size: 32px;
    color: #636363;
    margin-bottom: 24px;
    line-height: 1.3;
}

.hero-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 30px;
}

.hero-tag {
    background-color: rgba(255, 182, 193, 0.2);
    color: #E76BA3;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    font-weight: 500;
    font-size: 12px;
    padding: 8px 18px;
    border-radius: 30px;
    border: 1px solid rgba(231, 107, 163, 0.3);
    transition: all 0.2s ease;
    white-space: nowrap;
}

.hero-tag:hover {
    background-color: rgba(255, 182, 193, 0.3);
    transform: scale(1.05);
}

.hero-description {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    font-size: 16px;
    color: #333333;
    line-height: 1.7;
    margin-bottom: 16px;
}

.hero-section-divider {
    width: 100%;
    height: 1px;
    background-color: rgba(99, 99, 99, 0.2);
    margin: 30px 0;
}

.hero-info-group {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.hero-info-item {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.info-label {
    font-family: 'Archivo', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    font-weight: 600;
    font-size: 16px;
    color: #000;
    margin: 0;
}

.info-text {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    font-size: 16px;
    color: #636363;
    margin: 0;
}

.hero-tools {
    display: flex;
    align-items: center;
    gap: 16px;
}

.tool-icon {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    transition: transform 0.3s ease;
}

.tool-icon:hover {
    transform: scale(1.1);
}

.figma-icon {
    background-color: transparent;
}

.ai-icon {
    background-color: transparent;
}

.tool-icon img {
    width: 40px;
    height: 40px;
    object-fit: contain;
}

.tool-badge {
    padding: 12px 24px;
    background-color: #5B7FBF;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.tool-badge span {
    font-family: 'Archivo', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    font-weight: 600;
    font-size: 16px;
    color: #ffffff;
}

.hero-meta {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.hero-author {
    font-family: 'Archivo', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    font-weight: 600;
    font-size: 16px;
    color: #636363;
}

.hero-date {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    font-size: 14px;
    color: #999999;
}

.hero-right {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-image-container {
    width: 100%;
    max-width: 600px;
    aspect-ratio: 16 / 10;
    background: linear-gradient(135deg, #B565D8 0%, #E76BA3 100%);
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0px 20px 60px rgba(181, 101, 216, 0.3);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px;
}

.hero-image-container img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    filter: drop-shadow(0px 10px 30px rgba(0, 0, 0, 0.2));
}

/* Case Study Section */
.case-study {
    margin-bottom: 100px;
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
}

.case-study-container {
    max-width: 1200px;
    margin: 0 auto;
}

.case-study-number-header {
    display: flex;
    align-items: baseline;
    gap: 12px;
    margin-bottom: 40px;
}

.case-number {
    font-family: 'Archivo', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    font-weight: 700;
    font-size: 48px;
    color: #FF6B9D;
    line-height: 1;
}

.case-title-inline {
    font-family: 'Archivo', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    font-weight: 600;
    font-size: 36px;
    color: #000;
    margin: 0;
    line-height: 1.2;
}

.case-study-header {
    margin-bottom: 50px;
    text-align: left;
}

.case-study-title {
    font-family: 'Archivo', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    font-weight: 600;
    font-size: 42px;
    color: #000;
    margin-bottom: 10px;
    line-height: 1.2;
}

.case-study-subtitle {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    font-size: 20px;
    color: #636363;
    margin-bottom: 20px;
    font-style: italic;
}

.case-study-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 20px;
}

.tag {
    background-color: rgba(255, 107, 157, 0.1);
    color: #FF6B9D;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    font-weight: 500;
    font-size: 14px;
    padding: 6px 16px;
    border-radius: 20px;
    border: 1px solid rgba(255, 107, 157, 0.2);
    transition: all 0.2s ease;
}

.tag:hover {
    background-color: rgba(255, 107, 157, 0.2);
    transform: scale(1.05);
}

/* Content Sections */
.content-section {
    margin-bottom: 60px;
}

.section-heading {
    font-family: 'Archivo', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    font-weight: 600;
    font-size: 32px;
    color: #000;
    margin-bottom: 24px;
    line-height: 1.3;
}

.subsection-heading {
    font-family: 'Archivo', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    font-weight: 600;
    font-size: 20px;
    color: #000;
    margin-bottom: 12px;
    margin-top: 24px;
    line-height: 1.4;
}

.body-text {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    font-size: 18px;
    color: #333333;
    line-height: 1.8;
    margin-bottom: 16px;
}

.bullet-list {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    font-size: 18px;
    color: #333333;
    line-height: 1.8;
    margin-left: 24px;
    margin-bottom: 16px;
}

.bullet-list li {
    margin-bottom: 8px;
}

.bullet-list li strong {
    color: #000;
    font-weight: 600;
}

/* Highlighted Sections */
.highlight-section {
    background: linear-gradient(135deg, rgba(255, 240, 248, 0.5), rgba(252, 235, 255, 0.5));
    padding: 40px;
    border-radius: 12px;
    border: 1px solid rgba(255, 107, 157, 0.1);
}

.challenge-item,
.solution-item {
    margin-bottom: 32px;
}

.challenge-item:last-child,
.solution-item:last-child {
    margin-bottom: 0;
}

/* Approach Section */
.approach-section {
    background-color: #f8f9fa;
    padding: 40px;
    border-radius: 12px;
    border-left: 4px solid #FF6B9D;
}

/* Result Section */
.result-section {
    background: linear-gradient(135deg, rgba(255, 182, 193, 0.15), rgba(255, 218, 224, 0.15));
    padding: 40px;
    border-radius: 12px;
    border: 2px solid rgba(255, 107, 157, 0.2);
}

.bullet-list.highlight li {
    color: #000;
    font-weight: 500;
}

.result-images {
    display: flex;
    flex-direction: column;
    gap: 30px;
    margin-top: 40px;
}

.result-image-wrapper {
    width: 100%;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0px 4px 20px rgba(0, 0, 0, 0.1);
    background-color: #ffffff;
}

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

/* Case Study Divider */
.case-study-divider {
    height: 1px;
    background: linear-gradient(to right, transparent, rgba(255, 107, 157, 0.3), transparent);
    margin: 80px 0;
}

/* Back to Projects Button */
.back-section {
    text-align: center;
    margin: 80px 0 100px 0;
}

.back-button {
    display: inline-block;
    padding: 16px 32px;
    background-color: transparent;
    border: 2px solid #FF6B9D;
    border-radius: 8px;
    color: #FF6B9D;
    font-family: 'Archivo', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    font-weight: 600;
    font-size: 16px;
    text-decoration: none;
    transition: all 0.3s ease;
}

.back-button:hover {
    background-color: #FF6B9D;
    color: #ffffff;
    transform: translateY(-2px);
    box-shadow: 0px 4px 12px rgba(255, 107, 157, 0.3);
}

/* Footer */
.footer {
    width: 100%;
    padding: 40px 0;
    border-top: 1px solid rgba(99, 99, 99, 0.2);
    margin-top: 50px;
    text-align: center;
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.footer-contact {
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
    flex-wrap: wrap;
}

.footer-link {
    font-family: 'Archivo', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    font-size: 16px;
    color: #636363;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-link:hover {
    color: #FF6B9D;
}

.footer-content p {
    font-family: 'Archivo', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    font-size: 14px;
    color: #636363;
    margin: 5px 0;
    line-height: 1.4;
}

.footer-content p:last-child {
    color: #9b9b9b;
    font-size: 12px;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .main {
        padding-left: 30px;
        padding-right: 30px;
    }

    .hero-content-wrapper {
        gap: 50px;
    }

    .hero-title {
        font-size: 38px;
    }

    .hero-subtitle-main {
        font-size: 26px;
    }

    .hero-description {
        font-size: 15px;
    }

    .case-study-title {
        font-size: 36px;
    }

    .section-heading {
        font-size: 28px;
    }

    .body-text,
    .bullet-list {
        font-size: 16px;
    }
}

@media (max-width: 768px) {
    .header .container {
        padding: 0 20px;
        flex-direction: column;
        gap: 15px;
    }

    .nav ul {
        gap: 20px;
    }

    .nav a {
        font-size: 14px;
    }

    .main {
        padding-left: 20px;
        padding-right: 20px;
    }

    .hero-section {
        padding: 60px 0 40px 0;
    }

    .hero-content-wrapper {
        flex-direction: column;
        gap: 40px;
    }

    .hero-left {
        max-width: 100%;
    }

    .hero-title {
        font-size: 32px;
    }

    .hero-subtitle-main {
        font-size: 22px;
    }

    .hero-description {
        font-size: 15px;
    }

    .hero-tools {
        gap: 12px;
    }

    .tool-icon {
        width: 50px;
        height: 50px;
    }

    .tool-icon img {
        width: 40px;
        height: 40px;
    }

    .tool-badge {
        padding: 10px 20px;
    }

    .tool-badge span {
        font-size: 14px;
    }

    .hero-right {
        width: 100%;
    }

    .hero-image-container {
        padding: 30px;
        aspect-ratio: 4 / 3;
    }

    .case-study {
        margin-bottom: 60px;
    }

    .case-study-title {
        font-size: 28px;
    }

    .section-heading {
        font-size: 24px;
    }

    .subsection-heading {
        font-size: 18px;
    }

    .body-text,
    .bullet-list {
        font-size: 16px;
    }

    .highlight-section,
    .approach-section,
    .result-section {
        padding: 24px;
    }

    .back-section {
        margin: 60px 0 80px 0;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 28px;
    }

    .hero-subtitle-main {
        font-size: 20px;
    }

    .hero-description {
        font-size: 14px;
    }

    .hero-tools {
        flex-wrap: wrap;
        gap: 10px;
    }

    .tool-icon {
        width: 45px;
        height: 45px;
    }

    .tool-icon img {
        width: 35px;
        height: 35px;
    }

    .tool-badge {
        width: 100%;
        padding: 10px 16px;
    }

    .hero-image-container {
        padding: 20px;
    }

    .case-study-title {
        font-size: 24px;
    }

    .section-heading {
        font-size: 22px;
    }

    .subsection-heading {
        font-size: 16px;
    }

    .body-text,
    .bullet-list {
        font-size: 15px;
    }

    .case-study-tags {
        gap: 8px;
    }

    .tag {
        font-size: 12px;
        padding: 4px 12px;
    }
}