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

/* Modern Portfolio Design System - Professional UI/UX Focused */
:root {
    /* Stripe-Inspired Colors - Dark Theme */
    --background: hsl(218, 23%, 5%);
    --foreground: hsl(218, 8%, 95%);

    --card: hsl(218, 20%, 8%);
    --card-foreground: hsl(218, 8%, 95%);

    --primary: hsl(242, 47%, 64%);
    --primary-foreground: hsl(218, 23%, 5%);

    --secondary: hsl(218, 15%, 15%);
    --secondary-foreground: hsl(218, 8%, 85%);

    --muted: hsl(218, 15%, 12%);
    --muted-foreground: hsl(218, 8%, 65%);

    --border: hsl(218, 15%, 15%);
    --input: hsl(218, 15%, 15%);

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, hsl(242, 47%, 64%), hsl(250, 60%, 70%));
    --gradient-secondary: linear-gradient(135deg, hsl(218, 15%, 15%), hsl(218, 15%, 20%));
    --gradient-hero: linear-gradient(135deg, hsl(218, 23%, 5%) 0%, hsl(218, 20%, 8%) 100%);

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 hsla(218, 23%, 0%, 0.15);
    --shadow: 0 1px 3px 0 hsla(218, 23%, 0%, 0.2), 0 1px 2px -1px hsla(218, 23%, 0%, 0.2);
    --shadow-md: 0 4px 6px -1px hsla(218, 23%, 0%, 0.25), 0 2px 4px -2px hsla(218, 23%, 0%, 0.25);
    --shadow-lg: 0 10px 15px -3px hsla(218, 23%, 0%, 0.3), 0 4px 6px -4px hsla(218, 23%, 0%, 0.3);
    --shadow-xl: 0 20px 25px -5px hsla(218, 23%, 0%, 0.4), 0 8px 10px -6px hsla(218, 23%, 0%, 0.4);

    /* Transitions */
    --transition-all: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-colors: color 0.3s cubic-bezier(0.4, 0, 0.2, 1), background-color 0.3s cubic-bezier(0.4, 0, 0.2, 1), border-color 0.3s cubic-bezier(0.4, 0, 0.2, 1);

    /* Border Radius */
    --radius: 0.5rem;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
    background: var(--gradient-hero);
    color: var(--foreground);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    display: grid;
    grid-template-columns: repeat(1, 1fr);
    gap: 3rem;
}

/* Navigation Styles */
.nav-fixed {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 50;
    background: hsla(218, 23%, 5%, 0.8);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    padding: 0.5rem 0 0.5rem 0;
}

.nav-container {
    max-width: 1280px;
    margin: 0 auto 0 auto;
    padding: 0 4rem;
}

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

.nav-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 4rem;
}

.nav-logo img {
    height: auto;
    max-width: 80px;
    width: 80px;
    display: block;
}

.nav-logo:hover {
    color: var(--primary);
}

.nav-desktop {
    display: none;
    align-items: center;
    gap: 2rem;
}

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

.nav-link {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--muted-foreground);
    text-decoration: none;
    transition: var(--transition-colors);
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary);
}

/* Dropdown Styles */
.dropdown {
    position: relative;
}

.dropdown-toggle {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--muted-foreground);
    background: none;
    border: none;
    cursor: pointer;
    transition: var(--transition-colors);
}

.dropdown-toggle:hover {
    color: var(--primary);
}

.dropdown-arrow {
    width: 1rem;
    height: 1rem;
    transition: transform 0.2s ease;
}

.dropdown.open .dropdown-arrow {
    transform: rotate(180deg);
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 12rem;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-0.5rem);
    transition: all 0.2s ease;
    z-index: 50;
}

.dropdown.open .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-item {
    display: block;
    padding: 0.75rem 1rem;
    font-size: 0.875rem;
    color: var(--foreground);
    text-decoration: none;
    transition: var(--transition-colors);
}

.dropdown-item:hover {
    background: var(--muted);
    color: var(--primary);
}

.dropdown-item:first-child {
    border-top-left-radius: var(--radius);
    border-top-right-radius: var(--radius);
}

.dropdown-item:last-child {
    border-bottom-left-radius: var(--radius);
    border-bottom-right-radius: var(--radius);
}

/* Mobile Menu */
.mobile-menu-btn {
    display: block;
    padding: 0.5rem;
    background: none;
    border: none;
    cursor: pointer;
    color: var(--foreground);
    border-radius: var(--radius);
    transition: var(--transition-colors);
}

.mobile-menu-btn:hover {
    background: var(--muted);
}

@media (min-width: 768px) {
    .mobile-menu-btn {
        display: none;
    }
}

.menu-icon,
.close-icon {
    width: 1.5rem;
    height: 1.5rem;
}

.mobile-menu {
    border-top: 1px solid var(--border);
    background: hsla(218, 23%, 5%, 0.95);
    backdrop-filter: blur(12px);
}

.mobile-menu-content {
    max-width: 1280px;
    margin: 0 auto;
    padding: 2rem 2rem;
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.mobile-menu-link {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--muted-foreground);
    text-decoration: none;
    transition: var(--transition-colors);
}

.mobile-menu-link:hover,
.mobile-menu-link.active {
    color: var(--primary);
}

.mobile-dropdown-toggle {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--muted-foreground);
    background: none;
    border: none;
    cursor: pointer;
    transition: var(--transition-colors);
    margin-bottom: 1rem;
}

.mobile-dropdown-toggle:hover {
    color: var(--primary);
}

.mobile-dropdown-menu {
    padding-left: 1rem;
    margin-top: 0.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    max-height: 0;
    overflow: scroll;
    transition: max-height 0.3s ease;
}

.mobile-dropdown.open .mobile-dropdown-menu {
    max-height: 17rem;
}

/* Utility Classes */
.hidden {
    display: none;
}

/* Hero Section */
.hero-section {
    margin: 8rem 4rem 0 4rem;
}

@media (max-width: 768px) {
    .hero-section {
        margin: 7rem 2rem 0 2rem;
    }
}

.hero-container {
    max-width: 1152px;
    margin: 0 auto;
    /* padding: 0 1.5rem; */
    text-align: center;
}

.avatar img {
    vertical-align: middle;
    width: 150px;
    height: 150px;
    border-radius: 50%;
    margin-bottom: 1.5rem;
}

@media (max-width: 768px) {
    .avatar img {
        width: 125px;
        height: 125px;

    }
}

.hero-title {
    font-size: 2.25rem;
    font-weight: 700;
    color: var(--foreground);
    margin-bottom: 1rem;
    letter-spacing: -0.02em;
    line-height: 1.1;
}

@media (min-width: 768px) {
    .hero-title {
        font-size: 3rem;
    }
}

.hero-gradient {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    font-size: 1.125rem;
    color: var(--muted-foreground);
    max-width: 48rem;
    margin: 0 auto 0;
    line-height: 1.6;
}

.name-description {
    font-size: 1.125rem;
    color: var(--muted-foreground);
    max-width: 48rem;
    margin: 0 auto 0;
    line-height: 1.6;
    margin-bottom: 1rem;
}

@media (min-width: 768px) {

    .hero-description,
    .name-description {
        font-size: 1.125rem;
    }
}


.hero-buttons {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    justify-content: center;
    align-items: center;
    /* margin-top: 1.5rem; */
}

@media (min-width: 640px) {
    .hero-buttons {
        flex-direction: row;
    }
}

/* Button Styles */
.btn-primary {
    background: var(--primary);
    color: var(--primary-foreground);
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius);
    font-weight: 500;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: var(--transition-all);
    border: none;
    cursor: pointer;
}

.btn-primary:hover {
    background: hsl(242, 47%, 58%);
    box-shadow: var(--shadow-lg);
    transform: translateY(-1px) scale(1.02);
}

.btn-secondary {
    background: var(--secondary);
    color: var(--secondary-foreground);
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius);
    font-weight: 500;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: var(--transition-all);
    border: none;
    cursor: pointer;
}

.btn-secondary:hover {
    background: hsl(218, 15%, 20%);
    box-shadow: var(--shadow-md);
    transform: translateY(-1px);
}

.btn-arrow {
    width: 1rem;
    height: 1rem;
    transition: transform 0.2s ease;
}

.btn-primary:hover .btn-arrow,
.card-btn:hover .btn-arrow {
    transform: translateX(0.25rem);
}

/* Section Styles */
.section-container {
    max-width: 1280px;
    /* padding: 0 4rem; */
    margin: 0 auto 0 auto;
}

@media (max-width: 768px) {
    .section-container {
        margin: 0 auto 0 auto;
    }
}

.section-header {
    text-align: center;
    /* margin-bottom: 2rem; */
}

.section-title {
    text-align: center;
    font-size: 1.875rem;
    font-weight: 700;
    color: var(--foreground);
    margin: 0 4rem 1rem 4rem;
    letter-spacing: -0.02em;
    line-height: 1, 1;
}

@media (max-width: 768px) {
    .section-title {
        margin: 0 2rem 1rem 2rem;
    }
}

.section-title-new {
    text-align: center;
    font-size: 1.875rem;
    font-weight: 700;
    color: var(--foreground);
    margin: 0 4rem 1rem 4rem;
    letter-spacing: -0.02em;
}

@media (min-width: 768px) {

    .section-title,
    .section-title-new {
        font-size: 2.25rem;
    }
}

.section-description {
    font-size: 1.125rem;
    color: var(--muted-foreground);
    /* max-width: 1280px;
    padding: 0 4rem;*/
    margin: 0 auto 0 auto;
}

.featured-case-studies {
    font-size: 1.125rem;
    color: var(--muted-foreground);
    margin: 0 4rem 0 4rem;
}

@media (max-width: 768px) {
    .featured-case-studies {
        margin: 0 2rem 0 2rem;
    }
}

/* @media (max-width: 768px) {
    .section-description {
        padding: 0;
        margin: 0 2rem 2rem 2rem;
    }
} */

.hero-button-passkey {
    margin-top: 1.5rem;
}

/* Portfolio Section */
/* .portfolio-section {
    margin-bottom: 4rem;
} */

/* @media (max-width: 768px) {

    .portfolio-section {
        margin-bottom: 2rem;
    }
} */


.portfolio-section-passkey {
    margin-bottom: 0;
}

.portfolio-grid {
    display: grid;
    gap: 2rem;
    margin: 2rem 4rem 0 4rem;
}

.showcase-grid {
    max-width: 1280px;
    display: grid;
    gap: 2rem;
    /* margin: 0 4rem 0 4rem; */
    margin: 0 auto 2rem auto;
    padding: 0 4rem;
}

@media (min-width: 768px) {

    .portfolio-grid,
    .showcase-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .portfolio-grid {
        margin: 2rem 2rem 0 2rem;
    }
}

@media (max-width: 768px) {
    .showcase-grid {
        grid-template-columns: repeat(1, 1fr);
        padding: 0 2rem;
    }
}

.passkey-grid {
    grid-template-columns: repeat(1, 1fr);
    max-width: 1280px;
    display: grid;
    gap: 2rem;
    margin: 0 auto 0 auto;
    padding: 0 4rem;
}

.lobby-grid {
    grid-template-columns: repeat(1, 1fr);
    max-width: 1280px;
    display: grid;
    gap: 2rem;
    margin: 0 auto 0 auto;
}

@media (max-width: 768px) {

    .lobby-grid {
        padding: 0;
        /* margin: 2rem auto 3rem auto; */
    }
}


@media (max-width: 768px) {

    .passkey-grid {
        padding: 0 2rem;
    }
}

/* Graphic Design Card Styles */

.graphics-grid {
    max-width: 1280px;
    display: grid;
    gap: 2rem;
    /* margin: 0 4rem 0 4rem; */
    margin: 0 auto 0 auto;
    padding: 0 4rem;
    grid-template-columns: repeat(3, 1fr);
}

@media (max-width: 768px) {

    .graphics-grid {
        padding: 0 2rem;
        gap: 1.5rem;
        grid-template-columns: repeat(2, 1fr);
    }
}

.graphics-image {
    aspect-ratio: 1/1;
    overflow: hidden;
    border-top-left-radius: var(--radius);
    border-top-right-radius: var(--radius);
}

.graphics-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.graphics-header {
    text-align: center;
    /* margin-bottom: 2rem; */
}

.graphics-title {
    text-align: center;
    font-size: 2.25rem;
    font-weight: 700;
    color: var(--foreground);
    margin: 0 4rem 1rem 4rem;
    letter-spacing: -0.02em;
}

/* Portfolio Card Styles */
.portfolio-card {
    position: relative;
    overflow: hidden;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    background: hsla(218, 20%, 8%, 0.8);
    backdrop-filter: blur(4px);
    box-shadow: var(--shadow-md);
    transition: var(--transition-all);
    /* cursor: pointer; */
    margin: 0 4rem 0 4rem;
}

@media (max-width: 768px) {
    .portfolio-card {
        margin: 0 2rem 0 2rem;
    }
}

.portfolio-card:hover {
    box-shadow: var(--shadow-xl);
    border-color: hsla(242, 47%, 64%, 0.4);
    transform: translateY(-4px);
}

.portfolio-card-transparent {
    position: relative;
    overflow: hidden;
    backdrop-filter: blur(4px);
    transition: var(--transition-all);
    /* cursor: pointer; */
    margin: 0 4rem 0 4rem;
}

@media (max-width: 768px) {
    .portfolio-card-transparent {
        margin: 0 2rem 0 2rem;
    }
}

.portfolio-card-transparent:hover {
    transform: translateY(-4px);
}

.card-image {
    aspect-ratio: 16/9;
    overflow: hidden;
    border-top-left-radius: var(--radius);
    border-top-right-radius: var(--radius);
}

.card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.portfolio-card:hover .card-image img {
    transform: scale(1.05);
}

.card-content {
    padding: 1.5rem;
}

.card-category {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.75rem;
}

.category-tag {
    padding: 0.25rem 0.75rem;
    font-size: 0.75rem;
    font-weight: 500;
    background: hsla(242, 47%, 64%, 0.1);
    color: var(--primary);
    border-radius: 9999px;
}

.card-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--foreground);
    margin-bottom: 1rem;
    letter-spacing: -0.01em;
    transition: var(--transition-colors);
}

@media (min-width: 768px) {
    .card-title {
        font-size: 1.5rem;
    }
}

.portfolio-card:hover .card-title {
    color: var(--primary);
}

.card-description {
    color: var(--muted-foreground);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.card-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

/* Skills Section */
/* .skills-section {
    padding-bottom: 4rem;
} */

.skills-grid,
.design-system-skills-grid {
    display: grid;
    gap: 1.5rem;
    margin: 0 4rem;
}

@media (max-width: 768px) {

    .skills-grid,
    .design-system-skills-grid {
        margin: 0 2rem;
    }
}

.skills-grid-challenge-solution {
    display: grid;
    gap: 2rem;
    margin: 0 4rem;
}

@media (max-width: 768px) {
    .skills-grid-challenge-solution {
        margin: 0 2rem;
    }
}

.tools-grid {
    display: grid;
    gap: 1.5rem;
    margin: 0 4rem;
}

@media (max-width: 768px) {
    .tools-grid {
        margin: 0 2rem;
        grid-template-columns: repeat(1, 1fr);
    }
}

@media (min-width: 768px) {
    .tools-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

.column-grid {
    margin: 0 4rem;
}

@media (max-width: 768px) {
    .column-grid {
        margin: 0 2em;
    }
}

.key-learnings {
    margin: 0 auto 4rem auto;
}

@media (max-width: 768px) {
    .key-learnings {
        margin: 4rem 2rem 2rem;
    }
}

@media (min-width: 768px) {

    .skills-grid,
    .design-system-skills-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .skills-grid-challenge-solution {
        grid-template-columns: repeat(1, 1fr);
    }
}

@media (min-width: 1024px) {
    .skills-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

@media (min-width: 1024px) {
    .design-system-skills-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .skills-grid-challenge-solution {
        grid-template-columns: repeat(2, 1fr);
    }
}

.skill-card {
    background: hsla(218, 20%, 8%, 0.3);
    backdrop-filter: blur(4px);
    border-radius: var(--radius);
    padding: 1.5rem;
    border: 1px solid var(--border);
    transition: var(--transition-all);
    width: 100%;
}

.skill-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.skill-icon {
    width: 3rem;
    height: 3rem;
    background: hsla(242, 47%, 64%, 0.2);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1rem;
}

.skill-icon svg {
    width: 1.5rem;
    height: 1.5rem;
    color: var(--primary);
}

.skill-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--foreground);
    margin-bottom: 0.5rem;
}

.skill-description {
    font-size: 0.875rem;
    color: var(--muted-foreground);
    list-style-position: inside;
}

.notification-box {
    max-width: 1280px;
    padding: 0 4rem;
    margin: 0 auto;
    font-size: smaller;
}

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

.notification {
    background: #2a1a22;
    border: 1px solid #a44;
    color: #ffb3b3;
    padding: 0.75rem;
    border-radius: var(--radius);
}


/* Contact Section */
.contact-section {
    margin: 0 4rem 4rem 4rem;
}

@media (max-width: 768px) {
    .contact-section {
        margin: 0 2rem 2rem 2rem;
    }
}

.contact-container {
    max-width: 1152px;
    margin: 0 auto;
    /* padding: 0 1.5rem; */
    text-align: center;
}

.contact-card {
    background: hsla(218, 20%, 8%, 0.3);
    backdrop-filter: blur(4px);
    border-radius: var(--radius);
    padding: 1.5rem;
    border: 1px solid var(--border);
}

.contact-title {
    font-size: 1.875rem;
    font-weight: 700;
    color: var(--foreground);
    margin-bottom: 2rem;
    letter-spacing: -0.02em;
}

@media (min-width: 768px) {
    .contact-title {
        font-size: 2.25rem;
    }
}

.contact-description {
    font-size: 1.125rem;
    color: var(--muted-foreground);
    margin-bottom: 2rem;
    max-width: 32rem;
    margin-left: auto;
    margin-right: auto;
}

.contact-buttons,
.lobby-prototype-buttons {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    justify-content: center;
    align-items: center;
}

@media (min-width: 640px) {
    .contact-buttons {
        flex-direction: row;
    }
}

/* Animation Classes */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(1rem);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeIn 0.5s ease-out;
}

.slide-up {
    animation: slideUp 0.5s ease-out both;
    max-width: 1280px;
    margin: 0 auto;
    /* padding: 1.5rem; */
}

/* Smooth scrolling */
html {
    scroll-behavior: smooth;
}

/* Link styles */
a {
    color: inherit;
    text-decoration: none;
}

/* Focus styles for accessibility */
button:focus,
a:focus {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

/* Responsive adjustments */