:root {
    --section-number-size: 3rem;
    --section-number-opacity: 0.15;
    --section-tag-spacing: var(--space-md);

    --brand-hue: 220;
    --brand-saturation: 95%;
    --brand-lightness: 58%;
    --brand-primary-hsl: var(--brand-hue), var(--brand-saturation), var(--brand-lightness);
    --brand-primary: hsl(var(--brand-primary-hsl));
    --brand-secondary-hue-offset: 15;
    --brand-secondary-lightness-offset: 10%;
    --brand-secondary: hsl(calc(var(--brand-hue) + var(--brand-secondary-hue-offset)),
            var(--brand-saturation),
            calc(var(--brand-lightness) + var(--brand-secondary-lightness-offset)));
    --brand-gradient: linear-gradient(135deg, var(--brand-primary), var(--brand-secondary));
    --brand-gradient-hover: linear-gradient(135deg, var(--brand-secondary), var(--brand-primary));

    --bg-page-rgb: 8, 12, 22;
    --bg-page: rgb(var(--bg-page-rgb));
    --bg-surface-rgb: 18, 25, 40;
    --bg-surface: rgb(var(--bg-surface-rgb));
    --bg-elevated-rgb: 30, 40, 60;
    --bg-elevated: rgb(var(--bg-elevated-rgb));
    --bg-active-rgb: 45, 58, 88;
    --bg-active: rgb(var(--bg-active-rgb));
    --bg-hover-rgb: 25, 35, 55;
    --bg-hover: rgb(var(--bg-hover-rgb));

    --text-primary-rgb: 230, 235, 245;
    --text-primary: rgb(var(--text-primary-rgb));
    --text-secondary-rgb: 190, 200, 220;
    --text-secondary: rgb(var(--text-secondary-rgb));
    --text-muted-rgb: 140, 155, 180;
    --text-muted: rgb(var(--text-muted-rgb));
    --text-disabled-rgb: 90, 100, 120;
    --text-disabled: rgb(var(--text-disabled-rgb));
    --text-on-accent-rgb: 255, 255, 255;
    --text-on-accent: rgb(var(--text-on-accent-rgb));
    --text-interactive-hover: var(--brand-primary);

    --status-success-rgb: 34, 197, 94;
    --color-success: rgb(var(--status-success-rgb));
    --status-warning-rgb: 245, 158, 11;
    --color-warning: rgb(var(--status-warning-rgb));
    --status-error-rgb: 239, 68, 68;
    --color-error: rgb(var(--status-error-rgb));
    --status-info-hsl: var(--brand-primary-hsl);
    --color-info: hsl(var(--status-info-hsl));
    --bg-error-surface-rgb: 60, 25, 30;
    --bg-error-surface: rgb(var(--bg-error-surface-rgb));
    --text-on-semantic-accent-rgb: 255, 255, 255;
    --text-on-semantic-accent: rgb(var(--text-on-semantic-accent-rgb));

    --border-primary-rgb: 45, 55, 75;
    --border-primary: rgba(var(--border-primary-rgb), 0.4);
    --border-secondary-rgb: 65, 75, 95;
    --border-secondary: rgba(var(--border-secondary-rgb), 0.5);
    --border-interactive-rgb: 90, 100, 120;
    --border-interactive: rgb(var(--border-interactive-rgb));
    --border-focus: var(--brand-primary);
    --border-error: var(--color-error);

    --shadow-color-rgb: 0, 0, 0;
    --shadow-opacity-sm: 0.15;
    --shadow-opacity-md: 0.25;
    --shadow-opacity-lg: 0.35;
    --shadow-sm: 0 3px 8px rgba(var(--shadow-color-rgb), var(--shadow-opacity-sm));
    --shadow-md: 0 6px 15px rgba(var(--shadow-color-rgb), var(--shadow-opacity-md));
    --shadow-lg: 0 10px 25px rgba(var(--shadow-color-rgb), var(--shadow-opacity-lg));
    --shadow-focus: 0 0 0 3px hsla(var(--brand-primary-hsl), 0.55);
    --radius-xs: 4px;
    --radius-sm: 6px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 18px;
    --radius-round: 50%;

    --glass-bg-base-rgb: var(--bg-surface-rgb);
    --glass-opacity: 0.35;
    --glass-blur-strength: 10px;
    --glass-border-color-rgb: var(--border-secondary-rgb);
    --glass-border-opacity: 0.25;
    --glass-background: rgba(var(--glass-bg-base-rgb), var(--glass-opacity));
    --glass-border-color: rgba(var(--glass-border-color-rgb), var(--glass-border-opacity));

    --transition-duration-fast: 0.2s;
    --transition-duration-std: 0.3s;
    --transition-duration-slow: 0.5s;
    --transition-timing-function: cubic-bezier(0.25, 0.1, 0.25, 1);
    --transition-fast: all var(--transition-duration-fast) var(--transition-timing-function);
    --transition-std: all var(--transition-duration-std) var(--transition-timing-function);
    --transition-slow: all var(--transition-duration-slow) var(--transition-timing-function);

    --font-family-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif, 'Apple Color Emoji', 'Segoe UI Emoji', 'Segoe UI Symbol';
    --font-family-headings: 'Montserrat', 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-family-monospace: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, Courier, monospace;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-md: 1.125rem;
    --font-size-lg: 1.25rem;
    --font-size-xl: 1.5rem;
    --font-size-xxl: 1.875rem;
    --font-size-title: 2.25rem;
    --line-height-tight: 1.3;
    --line-height-normal: 1.5;
    --line-height-loose: 1.7;

    --space-unit: 4px;
    --space-xs: var(--space-unit);
    --space-sm: calc(var(--space-unit) * 2);
    --space-md: calc(var(--space-unit) * 3);
    --space-lg: calc(var(--space-unit) * 4);
    --space-xl: calc(var(--space-unit) * 5);
    --space-xxl: calc(var(--space-unit) * 6);
    --control-height-sm: 34px;
    --control-height-md: 40px;
    --control-height-lg: 48px;

    --card-animate-duration: 400ms;
    --card-lift-duration: 200ms;
    --card-ease: cubic-bezier(.22, 1, .36, 1);
    --card-lift: 40px;
    --card-lift-rotation: 1deg;
}


@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Montserrat:wght@500;600;700;800&display=swap');

*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    background-color: var(--bg-page);
    color: var(--text-primary);
    font-family: var(--font-family-sans);
    font-size: var(--font-size-base);
    line-height: var(--line-height-normal);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
    position: relative;
}

.background-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
}

.container {
    width: min(90%, 1200px);
    margin: 0 auto;
    padding: var(--space-md) var(--space-lg);
}

header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: rgba(var(--bg-surface-rgb), 0.75);
    backdrop-filter: blur(12px);
    padding: var(--space-sm) 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
    border-bottom: 1px solid rgba(var(--border-primary-rgb), 0.2);
    transition: background-color 0.3s ease, box-shadow 0.3s ease;
}

header.scrolled {
    background-color: rgba(var(--bg-surface-rgb), 0.65);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
}


header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 var(--space-lg);
}

.logo {
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--brand-primary);
    text-decoration: none;
    letter-spacing: -0.5px;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.25));
}

.logo img {
    filter: drop-shadow(0 2px 3px rgba(0, 0, 0, 0.2));
    transition: transform 0.3s ease, filter 0.3s ease;
}

.logo:hover img {
    transform: scale(1.05);
    filter: drop-shadow(0 3px 5px rgba(0, 0, 0, 0.25));
}

.logo span {
    color: var(--text-primary);
    font-weight: 400;
}

nav ul {
    list-style: none;
    display: flex;
    gap: var(--space-xl);
}

nav ul li a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    padding: var(--space-sm) var(--space-xs);
    transition: color 0.3s cubic-bezier(0.16, 1, 0.3, 1),
        transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
    position: relative;
    display: inline-block;
}

nav ul li a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -4px;
    left: 0;
    background-image: var(--brand-gradient);
    transition: width 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

nav ul li a:hover {
    color: var(--brand-primary);
    transform: translateY(-2px);
}

nav ul li a:hover::after,
nav ul li a.active::after {
    width: 100%;
}

nav ul li a.active {
    color: var(--brand-primary);
    font-weight: 600;
    transform: translateY(-1px);
}

header nav>ul .mobile-nav-close {
    display: none;
}

.mobile-nav-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.8rem;
    cursor: pointer;
    z-index: 1100;
    padding: var(--space-sm);
    transition: transform 0.2s ease-out;
}

.mobile-nav-toggle:hover {
    transform: scale(1.1);
}


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

@keyframes fadeInSlideLeft {
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes letterFadeIn {
    0% {
        opacity: 0;
        transform: translateY(20px) rotateX(-90deg);
    }

    100% {
        opacity: 1;
        transform: translateY(0) rotateX(0deg);
    }
}


@media (min-width: 769px) {

    header nav>ul>li:nth-child(1) {
        animation-delay: 0.25s;
    }

    header nav>ul>li:nth-child(2) {
        animation-delay: 0.35s;
    }

    header nav>ul>li:nth-child(3) {
        animation-delay: 0.45s;
    }

    header nav>ul>li:nth-child(4) {
        animation-delay: 0.55s;
    }

    header nav>ul>li:nth-child(5) {
        animation-delay: 0.65s;
    }
}

@media (max-width: 768px) {
    header .container {
        padding: 0 var(--space-md);
    }

    header nav>ul {
        flex-direction: column;
        position: fixed;
        top: 0;
        right: -100%;
        width: min(280px, 80vw);
        height: 100vh;
        background-color: rgba(var(--bg-surface-rgb), 0.95);
        backdrop-filter: blur(12px);
        padding: calc(var(--space-xl) + var(--space-lg)) var(--space-lg) var(--space-lg);
        z-index: 1050;
        transition: right 0.35s var(--transition-timing-function);
        gap: var(--space-md);
        align-items: flex-start;
        box-shadow: -5px 0 15px rgba(var(--shadow-color-rgb), 0.2);
    }

    header nav>ul.active {
        right: 0;
    }

    header nav>ul li {
        width: 100%;
        opacity: 1;
        transform: none;
        animation: none;
    }

    header nav>ul li a {
        padding: var(--space-sm) 0;
        font-size: var(--font-size-lg);
        font-weight: 500;
        display: block;
    }

    header nav>ul li a::after {
        bottom: -2px;
        height: 2px;
    }

    .mobile-nav-toggle {
        display: block;
        font-size: 2rem;
    }

    header nav>ul .mobile-nav-close {
        display: block;
        position: absolute;
        top: var(--space-lg);
        right: var(--space-lg);
        background: transparent;
        border: none;
        color: var(--text-primary);
        font-size: 2.2rem;
        cursor: pointer;
        padding: var(--space-xs);
        line-height: 1;
        transition: color var(--transition-fast), transform var(--transition-fast);
    }

    header nav>ul .mobile-nav-close:hover {
        color: var(--brand-primary);
        transform: rotate(90deg);
    }
}


#hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding-top: 70px;
    position: relative;
    overflow: hidden;
}

#hero .content {
    max-width: 800px;
    z-index: 1;
    margin: 0 auto;
    text-align: center;
    padding: 0 var(--space-lg);
}

#hero h1 {
    font-size: clamp(2.5rem, 6vw, 4.2rem);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--space-lg);
    line-height: 1.15;
    position: relative;
}

#hero h1 .char {
    display: inline-block;
    opacity: 0;
    transform-origin: bottom center;
    animation: letterFadeIn 0.8s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
}



#hero p {
    font-size: clamp(1rem, 2.5vw, 1.25rem);
    color: var(--text-secondary);
    margin-bottom: var(--space-xl);
    max-width: 600px;
    margin: 0 auto var(--space-xl);
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInSlideUp 0.7s ease-out 0.5s forwards;
}

.cta-button {
    display: inline-block;
    padding: calc(var(--space-md) + 1px) calc(var(--space-xl) + 2px);
    background-image: var(--brand-gradient);
    background-size: 200% auto;
    color: var(--text-on-accent);
    text-decoration: none;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: var(--font-size-base);
    transition: background-position 0.5s cubic-bezier(0.16, 1, 0.3, 1),
        transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1),
        box-shadow 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    box-shadow: var(--shadow-md), 0 0 0 hsla(var(--brand-primary-hsl), 0);
    position: relative;
    overflow: hidden;
}

.cta-button::before {
    content: "";
    position: absolute;
    top: 0;
    left: -100%;
    width: 50%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.25), transparent);
    transition: left 0.7s cubic-bezier(0.165, 0.84, 0.44, 1);
}

.cta-button:hover {
    background-position: right center;
    box-shadow: var(--shadow-lg), 0 0 20px hsla(var(--brand-primary-hsl), 0.5);
    transform: translateY(-3px) scale(1.03);
}

.cta-button:hover::before {
    left: 150%;
}

.cta-button:active {
    transform: translateY(-2px) scale(1.02);
    box-shadow: var(--shadow-sm), 0 0 15px hsla(var(--brand-primary-hsl), 0.4);
}

#hero .cta-button {
    animation: pulseCTA 3s infinite ease-in-out 1.5s;
}

@keyframes pulseCTA {
    0% {
        transform: scale(1);
        box-shadow: var(--shadow-md), 0 0 0px hsla(var(--brand-primary-hsl), 0.3);
    }

    50% {
        transform: scale(1.02);
        box-shadow: var(--shadow-lg), 0 0 15px hsla(var(--brand-primary-hsl), 0.5);
    }

    100% {
        transform: scale(1);
        box-shadow: var(--shadow-md), 0 0 0px hsla(var(--brand-primary-hsl), 0.3);
    }
}


section {
    padding: var(--space-xl) 0;
    position: relative;
}

.section-title {
    text-align: center;
    font-size: var(--font-size-title);
    font-weight: 700;
    font-family: var(--font-family-headings);
    color: var(--text-primary);
    margin: var(--space-xl) 0 var(--space-lg);
    position: relative;
    padding-bottom: var(--space-md);
}

.section-title .char {
    display: inline-block;
    opacity: 0;
    transform: translateY(25px) rotateZ(10deg);
    transform-origin: center;
    transition: opacity 0.5s ease-out, transform 0.5s ease-out;
}

.section-title.visible .char,
.reveal-on-scroll.visible .section-title .char,
.section-title.title-animated .char {
    opacity: 1;
    transform: translateY(0) rotateZ(0deg);
}

.section-title::after {
    content: '';
    position: absolute;
    width: 80px;
    height: 3px;
    bottom: 0;
    left: 50%;
    background-image: var(--brand-gradient);
    border-radius: var(--radius-xs);
    transform: translateX(-50%) scaleX(0);
    transform-origin: center;
    transition: transform 0.8s cubic-bezier(0.19, 1, 0.22, 1) 0.4s;
}

.reveal-on-scroll.visible .section-title::after {
    transform: translateX(-50%) scaleX(1);
}


.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 320px), 1fr));
    gap: var(--space-lg);
    margin-top: var(--space-xl);
}

.card,
.skill-item.card {
    background-color: rgba(var(--bg-surface-rgb), 0.3);
    backdrop-filter: blur(15px);
    border: 1px solid rgba(255, 255, 255, 0.05);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2), 0 0 0 1px rgba(var(--border-primary-rgb), 0.08);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    box-shadow: var(--shadow-md);
    border: 1px solid rgba(var(--border-primary-rgb), 0.1);
    transition: transform 0.45s cubic-bezier(0.175, 0.885, 0.32, 1.275),
        box-shadow 0.45s cubic-bezier(0.175, 0.885, 0.32, 1.275),
        background-color 0.45s ease-in-out;
    overflow: hidden;
    position: relative;
}

.card::before,
.skill-item.card::before {
    content: "";
    position: absolute;
    top: 0;
    left: -150%;
    width: 75%;
    height: 100%;
    background: linear-gradient(100deg, transparent, rgba(255, 255, 255, 0.08), transparent);
    transform: skewX(-25deg);
    transition: left 1s cubic-bezier(0.23, 1, 0.32, 1);
}

.card:hover,
.skill-item.card:hover {
    transform: translateY(-6px) rotateX(2deg) rotateY(1deg) scale(1.02);
    box-shadow: 0 12px 25px rgba(var(--shadow-color-rgb), 0.35),
        0 0 20px hsla(var(--brand-primary-hsl), 0.25);
    background-color: rgba(var(--bg-surface-rgb), 0.6);
    border-color: hsla(var(--brand-primary-hsl), 0.3);
    transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1),
        box-shadow 0.5s cubic-bezier(0.16, 1, 0.3, 1),
        background-color 0.5s cubic-bezier(0.16, 1, 0.3, 1),
        border-color 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

.card:hover::before,
.skill-item.card:hover::before {
    left: 150%;
}

#overlay {
    position: fixed;
    inset: 0;
    background: rgba(var(--bg-page-rgb), 0.85);
    backdrop-filter: blur(8px);
    z-index: 1090;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.5s cubic-bezier(0.4, 0, 0.2, 1),
        visibility 0.5s cubic-bezier(0.4, 0, 0.2, 1),
        backdrop-filter 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

#overlay.active {
    opacity: 1;
    visibility: visible;
}

#overlay.closing {
    opacity: 0;
    backdrop-filter: blur(0px);
    transition-duration: 0.4s;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-lg);
    position: relative;
    margin-top: var(--space-xl);
}

.card.project-card {
    cursor: pointer;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transform-origin: center bottom;
    will-change: transform, box-shadow;
    transition: transform var(--card-lift-duration) var(--transition-timing-function),
        box-shadow var(--card-lift-duration) var(--transition-timing-function);
}

@keyframes cardClose {
    0% {
        opacity: 1;
        transform: translateY(0) scale(1);
    }

    100% {
        opacity: 0;
        transform: translateY(30px) scale(0.95);
    }
}

@keyframes detailsFadeOut {
    0% {
        opacity: 1;
        transform: translateY(0);
    }

    100% {
        opacity: 0;
        transform: translateY(10px);
    }
}

.card-clone {
    position: fixed;
    margin: 0;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    z-index: 1100;
    background-color: rgba(var(--bg-surface-rgb), 0.98);
    overflow: hidden;
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.card-clone.closing {
    animation: cardClose 0.5s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

.card-clone.closing .details__content>* {
    animation: detailsFadeOut 0.3s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

.card-clone.closing .details__side--left {
    animation-delay: 0s;
}

.card-clone.closing .details__side--right {
    animation-delay: 0.1s;
}

.card-clone.lift {
    transform: translateY(calc(-1 * var(--card-lift) * 0.6)) rotateX(calc(var(--card-lift-rotation) * 0.7));
    box-shadow: var(--shadow-lg), 0 0 25px hsla(var(--brand-primary-hsl), 0.25);
}

.card-clone.expand {
    transition: all var(--card-animate-duration) var(--card-ease);
    max-height: 90vh;
    overflow-y: auto;
}

.card__img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-radius: var(--radius-md) var(--radius-md) 0 0;
    margin: calc(-1 * var(--space-lg)) calc(-1 * var(--space-lg)) var(--space-md) calc(-1 * var(--space-lg));
    background-color: var(--bg-elevated);
    border-bottom: 1px solid rgba(var(--border-primary-rgb), 0.1);
    transition: transform 0.5s cubic-bezier(0.23, 1, 0.32, 1);
}

.card:hover .card__img {
    transform: scale(1.05);
}

.card__title {
    font-size: 1.35rem;
    color: var(--brand-primary);
    margin: var(--space-md) 0 var(--space-sm);
    font-weight: 600;
}

.card__desc {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: var(--space-md);
    line-height: var(--line-height-tight);
    flex-grow: 1;
}

.card__tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-xs);
    margin-bottom: var(--space-sm);
}

.card__tags span {
    display: inline-block;
    background-color: rgba(var(--bg-elevated-rgb), 0.5);
    color: var(--text-muted);
    padding: calc(var(--space-xs) + 1px) calc(var(--space-sm) + 2px);
    border-radius: var(--radius-sm);
    font-size: 0.7rem;
    border: 1px solid rgba(var(--border-primary-rgb), 0.05);
    transition: transform 0.2s ease-out, background-color 0.2s ease;
}

.card__tags span:hover {
    transform: scale(1.05);
    background-color: rgba(var(--brand-primary-hsl), 0.2);
    color: var (--brand-primary);
}

.card__details {
    display: none;
    width: 100%;
    animation: fadeInUp 0.5s ease-out forwards;
    position: relative;
    padding: var(--space-lg);
}

.card-clone.details-ready .card__details {
    display: block;
}

.details__close {
    position: absolute;
    top: var(--space-lg);
    right: var(--space-lg);
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 2rem;
    cursor: pointer;
    transition: all 0.3s ease;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(4px);
    background-color: rgba(var(--bg-surface-rgb), 0.5);
    z-index: 10;
}

.details__close:hover {
    color: var(--brand-primary);
    transform: rotate(90deg);
    background-color: rgba(var(--border-primary-rgb), 0.2);
}

.details__content {
    display: flex;
    gap: var(--space-lg);
}

.details__side {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.details__side--left {
    flex: 1;
    max-width: 40%;
}

.details__side--right {
    flex: 1.5;
}

.details__preview {
    width: 100%;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    object-fit: cover;
}

.details__thumbs {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
}

.details__thumbs img {
    width: 60px;
    height: 60px;
    object-fit: cover;
    border-radius: var(--radius-sm);
    cursor: pointer;
    opacity: 0.7;
    transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
    border: 2px solid transparent;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

.details__thumbs img:hover {
    opacity: 1;
    transform: translateY(-4px) scale(1.05);
    border-color: var(--brand-primary);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2),
        0 0 0 2px hsla(var(--brand-primary-hsl), 0.3);
}

.details__tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-xs);
    margin-top: var(--space-sm);
}

.details__tags span {
    display: inline-block;
    background-color: rgba(var(--bg-elevated-rgb), 0.5);
    color: var(--text-muted);
    padding: calc(var(--space-xs) + 1px) calc(var(--space-sm) + 2px);
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    border: 1px solid rgba(var(--border-primary-rgb), 0.05);
    transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.details__tags span:hover {
    transform: translateY(-2px);
    background-color: rgba(var(--brand-primary-hsl), 0.15);
    color: var(--brand-primary);
    border-color: hsla(var(--brand-primary-hsl), 0.3);
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.1);
}

.details__title {
    font-size: 1.8rem;
    color: var(--brand-primary);
    margin-bottom: var(--space-md);
    font-weight: 700;
}

.details__features {
    margin-top: var(--space-md);
    margin-bottom: var(--space-md);
}

.details__features h5 {
    color: var(--text-primary);
    font-size: 1.1rem;
    margin-bottom: var(--space-sm);
    font-weight: 600;
}

.details__features ul {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: var(--space-sm);
    padding-left: var(--space-lg);
}

.details__features li {
    color: var(--text-secondary);
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

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

@media (max-width: 768px) {
    .details__content {
        flex-direction: column;
        gap: var(--space-md);
    }

    .details__side--left {
        max-width: 100%;
        padding: 0;
    }

    .details__side--right {
        padding: 0 var(--space-md);
    }

    .card-clone.expand {
        top: 0 !important;
        left: 0 !important;
        width: 100vw !important;
        height: 100vh !important;
        max-height: 100vh;
        border-radius: 0;
        padding: var(--space-md);
    }

    .details__thumbs {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(60px, 1fr));
        gap: var(--space-xs);
    }

    .details__thumbs img {
        width: 100%;
        height: auto;
        aspect-ratio: 1;
    }

    .details__tags {
        justify-content: center;
        padding: var(--space-sm) 0;
    }

    .details__tags span {
        padding: var(--space-xs) var(--space-md);
        font-size: var(--font-size-xs);
    }

    .details__features ul {
        grid-template-columns: 1fr;
        padding-left: var(--space-md);
    }

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

    .details__title {
        font-size: 1.5rem;
        text-align: center;
    }
}

.skill-item {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-md) var(--space-lg);
}

.skill-item svg {
    color: var(--brand-primary);
    min-width: 40px;
    height: 40px;
    transition: transform 0.3s ease-in-out;
}

.skill-item:hover svg {
    transform: rotateY(180deg) scale(1.1);
}

.skill-item h4 {
    font-size: 1.2rem;
    color: var(--text-primary);
    margin: 0;
    font-weight: 600;
}


#chat-ai {
    position: relative;
    padding-top: var(--space-xl);
    padding-bottom: var(--space-xl);
}

.chat-interface {
    max-width: 680px;
    margin: var(--space-lg) auto;
    background-color: rgba(var(--bg-elevated-rgb), 0.5);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    border: 1px solid rgba(var(--border-primary-rgb), 0.2);
    backdrop-filter: blur(10px);
    position: relative;
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    aspect-ratio: 1/0.75;
    display: flex;
    flex-direction: column;
    max-height: 600px;
}

.chat-interface:hover {
    box-shadow: var(--shadow-lg), 0 0 20px hsla(var(--brand-primary-hsl), 0.25);
    border-color: rgba(var(--brand-primary-hsl), 0.25);
    transform: translateY(-3px);
}

.chat-interface.fullscreen {
    position: fixed;
    top: 2vh;
    left: 2vw;
    width: 96vw;
    height: 96vh;
    max-width: 96vw;
    max-height: 96vh;
    border-radius: var(--radius-lg);
    z-index: 2000;
}

.chat-header {
    padding: var(--space-md) var(--space-lg);
    background-color: rgba(var(--bg-surface-rgb), 0.7);
    border-bottom: 1px solid rgba(var(--border-primary-rgb), 0.2);
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: relative;
}

.chat-header .clear-history-btn {
    position: absolute;
    right: 52px;
    top: 50%;
    transform: translateY(-50%);
}


.chat-control-btn {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-size: 1.2rem;
    cursor: pointer;
    padding: var(--space-xs);
    transition: color var(--transition-fast), transform var(--transition-fast);
    margin-left: var(--space-sm);
}

.chat-control-btn:hover {
    color: var(--brand-primary);
    transform: scale(1.1);
}

.chat-header h3 {
    color: var(--brand-primary);
    font-size: var(--font-size-lg);
    margin: 0;
}

.chat-status {
    display: none;
}

.status-indicator {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: var(--color-success);
    margin-right: var(--space-xs);
    position: relative;
}

.status-indicator::after {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    border-radius: 50%;
    background-color: var(--color-success);
    opacity: 0.5;
    animation: pulse 1.5s ease-in-out infinite;
}

@keyframes pulse {
    0% {
        transform: scale(1);
        opacity: 0.5;
    }

    50% {
        transform: scale(1.5);
        opacity: 0;
    }

    100% {
        transform: scale(1);
        opacity: 0;
    }
}

.chat-messages {
    padding: var(--space-lg);
    flex: 1;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
    min-height: 0;
}

.message {
    max-width: 85%;
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-md);
    position: relative;
    animation: messageAppear 0.3s ease forwards;
    opacity: 0;
    transform: translateY(10px);
    line-height: 1.5;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

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

.user-message {
    background-image: var(--brand-gradient);
    color: var(--text-on-accent);
    align-self: flex-end;
    border-radius: var(--radius-md) var(--radius-md) 0 var(--radius-md);
}

.ai-message {
    background-color: rgba(var(--bg-elevated-rgb), 0.7);
    color: var(--text-primary);
    align-self: flex-start;
    border-radius: var(--radius-md) var(--radius-md) var(--radius-md) 0;
}

.message p {
    margin: 0 0 var(--space-sm) 0;
}

.message p:last-child {
    margin-bottom: 0;
}

.message h1,
.message h2,
.message h3 {
    margin: var(--space-md) 0 var(--space-sm);
    color: var (--brand-primary);
}

.message ul,
.message ol {
    padding-left: var(--space-lg);
    margin: var(--space-sm) 0;
}

.message blockquote {
    border-left: 3px solid var(--brand-primary);
    padding-left: var(--space-md);
    margin: var(--space-md) 0;
    color: var(--text-secondary);
    font-style: italic;
}

.message code {
    font-family: var(--font-family-monospace);
    background: rgba(var(--bg-page-rgb), 0.5);
    padding: 0.2em 0.4em;
    border-radius: var(--radius-xs);
    font-size: 0.9em;
}

.message pre {
    background: rgba(var(--bg-page-rgb), 0.8);
    padding: var(--space-sm);
    border-radius: var(--radius-md);
    overflow-x: auto;
    margin: var(--space-md) 0;
}

.message pre code {
    background: none;
    padding: 0;
    font-size: 0.95em;
    color: var(--text-primary);
}

.message table {
    width: 100%;
    border-collapse: collapse;
    margin: var(--space-md) 0;
}

.message th,
.message td {
    padding: var(--space-sm);
    border: 1px solid rgba(var(--border-primary-rgb), 0.2);
}

.message th {
    background: rgba(var(--bg-elevated-rgb), 0.5);
}

.message p strong,
.message p b {
    font-weight: 600;
    color: var(--text-primary);
}

.message p em,
.message p i {
    font-style: italic;
    color: var(--text-secondary);
}

.message ul,
.message ol {
    margin-left: var(--space-lg);
    margin-top: var(--space-sm);
    margin-bottom: var(--space-sm);
}

.message li {
    margin-bottom: var(--space-xs);
}

.message p code {
    background-color: rgba(var(--bg-page-rgb), 0.7);
    padding: calc(var(--space-xs) / 2) var(--space-xs);
    border-radius: var(--radius-xs);
    font-family: var(--font-family-monospace);
    font-size: 0.85em;
    color: var(--text-secondary);
    border: 1px solid rgba(var(--border-primary-rgb), 0.2);
}

.message pre {
    background-color: rgba(var(--bg-page-rgb), 0.8);
    padding: var(--space-md);
    border-radius: var(--radius-sm);
    overflow-x: auto;
    margin: var(--space-sm) 0;
    border: 1px solid rgba(var(--border-primary-rgb), 0.25);
}

.message pre code {
    background-color: transparent;
    padding: 0;
    border: none;
    font-size: 0.875em;
    color: var(--text-primary);
}

.message p a {
    color: var(--brand-primary);
    text-decoration: underline;
    text-decoration-color: hsla(var(--brand-primary-hsl), 0.5);
    transition: text-decoration-color var(--transition-fast);
}

.message p a:hover {
    text-decoration-color: var(--brand-primary);
}


.chat-input {
    padding: var(--space-md) var(--space-lg);
    border-top: 1px solid rgba(var(--border-primary-rgb), 0.2);
    display: flex;
    gap: var(--space-md);
    flex-shrink: 0;
}

.chat-input input {
    flex: 1;
    padding: var(--space-md);
    background-color: rgba(var(--bg-surface-rgb), 0.5);
    border: 1px solid rgba(var(--border-primary-rgb), 0.3);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: var(--font-size-base);
    transition: all 0.3s ease;
}

.chat-input input:focus {
    outline: none;
    border-color: var(--brand-primary);
    background-color: rgba(var(--bg-surface-rgb), 0.7);
    box-shadow: 0 0 0 2px hsla(var(--brand-primary-hsl), 0.2);
}

.chat-input button {
    padding: var(--space-md) var(--space-lg);
    background-image: var(--brand-gradient);
    color: var(--text-on-accent);
    border: none;
    border-radius: var(--radius-md);
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.chat-input button:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(var(--shadow-color-rgb), 0.3);
}

.reveal-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.75s cubic-bezier(0.34, 1.56, 0.64, 1),
        transform 0.75s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.reveal-on-scroll.visible {
    opacity: 1;
    transform: translateY(0);
}

#contact form {
    max-width: 700px;
    margin: 0 auto;
    display: grid;
    gap: var(--space-md);
    background: linear-gradient(135deg,
            rgba(var(--bg-elevated-rgb), 0.4),
            rgba(var(--bg-elevated-rgb), 0.2));
    padding: var(--space-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md),
        0 0 25px rgba(var(--brand-primary-hsl), 0.1),
        inset 0 0 0 1px rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(var(--border-primary-rgb), 0.15);
    backdrop-filter: blur(15px);
    transform: translateZ(0);
    margin-top: var(--space-lg);
    position: relative;
    overflow: hidden;
}

#contact form::before {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(45deg,
            transparent 0%,
            rgba(255, 255, 255, 0.05) 50%,
            transparent 100%);
    transform: translateX(-100%);
    transition: transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

#contact form:hover::before {
    transform: translateX(100%);
}

.form-group {
    display: flex;
    flex-direction: column;
    position: relative;
    margin-bottom: var(--space-md);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: var(--space-md) var(--space-md) var(--space-sm) var(--space-md);
    background: rgba(var(--bg-surface-rgb), 0.2);
    color: var(--text-primary);
    border: 1px solid rgba(var(--border-primary-rgb), 0.2);
    border-radius: var(--radius-sm);
    font-size: var(--font-size-base);
    outline: none;
    box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.1);
    transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
    position: relative;
    z-index: 1;
    backdrop-filter: blur(5px);
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--border-focus);
    box-shadow: 0 0 0 2px hsla(var(--brand-primary-hsl), 0.25),
        0 5px 15px rgba(var(--brand-primary-hsl), 0.15);
    background: rgba(var(--bg-surface-rgb), 0.3);
    transform: translateY(-2px);
}

.form-group input:hover,
.form-group textarea:hover {
    background: rgba(var(--bg-surface-rgb), 0.25);
    border-color: rgba(var(--brand-primary-hsl), 0.3);
    transform: translateY(-1px);
}

.form-group label {
    position: absolute;
    top: var(--space-md);
    left: var(--space-md);
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    pointer-events: none;
    transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
    z-index: 2;
}

.form-group input:focus+label,
.form-group input:not(:placeholder-shown)+label,
.form-group textarea:focus+label,
.form-group textarea:not(:placeholder-shown)+label {
    transform: translateY(-26px) scale(0.85);
    color: var(--brand-primary);
    font-size: var(--font-size-xs);
    background-color: rgba(var(--bg-elevated-rgb), 0.95);
    padding: 0 var(--space-sm);
    border-radius: var(--radius-xs);
}

.form-group textarea {
    min-height: 150px;
    resize: vertical;
}

#contact form button[type="submit"] {
    justify-self: start;
    margin-top: var(--space-sm);
    cursor: pointer;
    border: none;
    position: relative;
    overflow: hidden;
    background-image: var(--brand-gradient);
    transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

#contact form button[type="submit"]::before {
    content: "";
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.3) 0%, transparent 60%);
    transform: scale(0);
    transition: transform 0.6s cubic-bezier(0.34, 1.56, 0.64, 1);
}

#contact form button[type="submit"]:hover {
    transform: translateY(-3px) scale(1.03);
    box-shadow: 0 5px 15px rgba(var(--brand-primary-hsl), 0.3),
        0 0 30px rgba(var(--brand-primary-hsl), 0.2);
}

#contact form button[type="submit"]:hover::before {
    transform: scale(1) rotate(45deg);
}

#contact form button[type="submit"]:active {
    transform: translateY(-1px) scale(1.01);
}

footer {
    background-color: rgba(var(--bg-surface-rgb), 0.5);
    padding: var(--space-xl) 0;
    text-align: center;
    border-top: 1px solid rgba(var(--border-primary-rgb), 0.15);
    margin-top: var(--space-xxl);
}

footer .container {
    padding: 0 var(--space-lg);
}

footer p {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    margin-bottom: var(--space-sm);
}

footer .social-links {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--space-lg);
    margin-top: var(--space-lg);
}

footer .social-links a {
    color: var(--text-secondary);
    transition: color var(--transition-fast), transform var(--transition-fast);
    display: inline-block;
}

footer .social-links a:hover {
    color: var(--brand-primary);
    transform: scale(1.15) translateY(-2px);
}

footer .social-links svg {
    width: 22px;
    height: 22px;
    fill: currentColor;
}

@media (max-width: 768px) {
    section {
        padding: var(--space-lg) 0;
    }

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

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

    #hero .content {
        padding: var(--space-lg) var(--space-md);
    }

    .chat-messages {
        padding: var(--space-md);
    }

    .message {
        max-width: 95%;
        padding: var(--space-sm);
    }

    #contact form {
        padding: var(--space-lg);
    }
}