/* Font Declarations */
@font-face {
    font-family: 'Neue Montreal';
    src: url('../fonts/NeueMontreal-Regular.woff2') format('woff2'),
        url('../fonts/NeueMontreal-Regular.woff') format('woff');
    font-weight: 400;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: 'Neue Montreal';
    src: url('../fonts/NeueMontreal-Medium.woff2') format('woff2'),
        url('../fonts/NeueMontreal-Medium.woff') format('woff');
    font-weight: 500;
    font-style: normal;
    font-display: swap;
}

/* CSS Custom Properties */
:root {
    /* Colors */
    --background-color: hsl(30 14% 89%);
    --body-color: #000000b8;
    --header-color: #000000;
    --border-color: #0000001b;
    --hover-opacity: 0.7;
    --card-bg: hsl(30, 6%, 94%);

    /* Nav SVG Colors */
    --svg-work-color: #FAD211;
    --svg-about-color: #4646F8;
    --svg-contact-color: #FD7135;

    /* Shadows */
    --card-shadow: 0 20px 50px #0000002b;

    /* Typography */
    --body-font: 'Neue Montreal', sans-serif;
    --header-font: 'Neue Montreal', sans-serif;
    --cursive-font: 'Libre Baskerville', serif;
    --cursive-weight: 400;

    /* Font Sizes */
    --font-size-xs: 0.8rem;
    --font-size-sm: 0.9rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.1rem;
    --font-size-xl: 1.2rem;
    --font-size-2xl: 1.6rem;
    --font-size-3xl: 1.8rem;
    --font-size-6xl: 3.1em;

    /* Line Heights */
    --line-height-tight: 125%;
    --line-height-normal: 135%;
    --line-height-relaxed: 145%;
    --line-height-loose: 170%;

    /* Letter Spacing */
    --letter-spacing-tight: 0.4px;
    --letter-spacing-normal: 0.6px;

    /* Spacing */
    --block-padding: 48px;
    --block-padding-mobile: 30px;
    --block-padding-tiny: 20px;
    --sidebar-width: 180px;
    --content-padding: 32px;
    --nav-padding: 8px;
    --nav-hover-padding: 35px;
    --gap-sm: 0.4rem;
    --gap-md: 0.5rem;
    --gap-lg: 1rem;
    --gap-xl: 1.5rem;
    --gap-2xl: 2rem;
    --gap-3xl: 3rem;

    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 16px;
    --radius-full: 9999px;

    /* Sizes */
    --nav-svg-size: 25px;
    --nav-svg-scale: 1.2;
    --nav-link-width: 100px;
    --logo-height: 64px;

    /* Animations */
    --transition-speed: 0.1s;
    --transition-timing: ease;
    --rotate-slow: 12s;
    --rotate-fast: 1.8s;
    --scroll-duration: 32s;

    /* Z-index */
    --z-sidebar: 10;
    --z-mobile-header: 1000;
    --z-content: 2;
    --z-hero: 1;
    --z-nav-buttons: 999;

    /* Layout */
    --hero-min-height: 600px;
    --hero-max-height: 920px;
    --content-max-width: 1400px;
    --project-card-min-width: 330px;
    --project-card-max-width: 550px;
}

/* General Reset */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* Base Styles */
body {
    display: flex;
    justify-content: center;
    align-items: flex-start;
    position: relative;
    font-family: var(--body-font);
    line-height: var(--line-height-loose);
    background: var(--background-color);
    letter-spacing: var(--letter-spacing-normal);
    font-weight: 400;
    color: var(--body-color);
    min-width: 280px;
    text-rendering: optimizeLegibility;
    font-feature-settings: "liga" 1, "clig" 1, "dlig" 1;
    -webkit-font-smoothing: subpixel-antialiased;
}

a {
    text-decoration-thickness: 1px;
    text-underline-offset: 2px;
}


button {
    appearance: none;
    font-style: normal;
    font-variant-ligatures: normal;
    font-variant-caps: normal;
    font-size: 16px;
    align-items: flex-start;
    cursor: pointer;
    border-style: none;
    background-color: transparent;
    top: 0;
    left: 0;
    z-index: var(--z-nav-buttons);
    height: 40px;
    width: 40px;
}

/* Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--header-font);
    font-weight: 500;
    color: var(--header-color);
}

h1 {
    font-size: var(--font-size-6xl);
    letter-spacing: var(--letter-spacing-tight);
    font-kerning: normal;
    line-height: var(--line-height-normal);
}

h1 .highlight {
    font-family: var(--cursive-font);
    font-style: italic;
    font-weight: var(--cursive-weight);
    letter-spacing: -0.04em;
    font-size: 98%;
}

.quote {
    font-size: var(--font-size-3xl);
    line-height: var(--line-height-relaxed);
    font-weight: 500;
    color: var(--header-color);
    letter-spacing: var(--letter-spacing-tight);
}

.quote a {
    font-family: var(--cursive-font);
    font-style: italic;
    font-weight: var(--cursive-weight);
    letter-spacing: -0.04em;
    font-size: 98%;
    transition: opacity var(--transition-speed) var(--transition-timing);
    text-decoration-thickness: 2px;
}

.quote a:hover,
h6 a:hover {
    opacity: var(--hover-opacity);
}

h5 {
    font-size: var(--font-size-lg);
    font-weight: 500;
    letter-spacing: var(--letter-spacing-tight);
    margin-top: var(--gap-2xl);
    margin-bottom: var(--gap-md);
}

h6 {
    font-size: var(--font-size-base);
    font-weight: 500;
    letter-spacing: var(--letter-spacing-tight);
}

/* Layout Components */
.mobile-header {
    display: none;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    text-align: left;
    padding: var(--gap-lg);
    position: relative;
    background: var(--background-color);
    z-index: var(--z-mobile-header);
}

.contact-btn {
    text-decoration: none;
    color: var(--header-color);
    font-size: var(--font-size-sm);
    font-weight: 500;
    transition: padding-left 0.12s ease;
    padding: var(--nav-padding) var(--nav-padding) var(--nav-padding) 0;
    letter-spacing: var(--letter-spacing-tight);
}

.contact-btn:hover {
    padding-left: var(--nav-hover-padding);
}

.sidebar {
    width: var(--sidebar-width);
    height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    padding: var(--gap-lg);
    position: fixed;
    left: 0;
    top: 0;
    z-index: var(--z-sidebar);
    border-right: 1px solid var(--border-color);
}

.logo a {
    font-size: var(--font-size-base);
    font-weight: 500;
    line-height: var(--line-height-tight);
    letter-spacing: var(--letter-spacing-tight);
    color: var(--header-color);
    text-decoration: none;
    margin-bottom: 0;
    -webkit-font-smoothing: subpixel-antialiased;
}

.nav-links {
    list-style: none;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    position: relative;
    text-decoration: none;
}

.nav-links li {
    position: relative;
    display: flex;
    align-items: center;
}

.nav-links a {
    position: relative;
    text-decoration: none;
    color: var(--header-color);
    font-size: var(--font-size-sm);
    font-weight: 500;
    transition: padding-left var(--transition-speed) var(--transition-timing);
    padding: var(--nav-padding) var(--nav-padding) var(--nav-padding) 0;
    width: var(--nav-link-width);
    display: inline-block;
    z-index: 10;
    letter-spacing: var(--letter-spacing-tight);
}

.nav-links a:hover {
    padding-left: var(--nav-hover-padding);
}

.nav-svg {
    width: var(--nav-svg-size);
    height: var(--nav-svg-size);
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%) scale(0);
    transform-origin: center;
    transition: color 0.2s ease;
    pointer-events: none;
}

#nav-work .nav-svg {
    color: var(--svg-work-color);
}

#nav-about .nav-svg {
    color: var(--svg-about-color);
}

#nav-contact .nav-svg {
    color: var(--svg-contact-color);
}

.social-links {
    margin-top: auto;
    display: flex;
}

.social-links a {
    color: var(--header-color);
    text-decoration: none;
    font-size: var(--font-size-lg);
    line-height: var(--font-size-lg);
    transition: color 0.1s;
}

.social-links a:hover {
    color: var(--header-color);
    opacity: 0.7;
}

.content {
    z-index: var(--z-content);
    margin-left: var(--sidebar-width);
    margin-right: auto;
    width: calc(100% - var(--sidebar-width));
    padding: var(--content-padding) var(--content-padding) 12px var(--content-padding);
}

.content.homepage {
    overflow-x: hidden;
}

/* Contact Section */
.contact {
    margin: 0 auto;
    padding: 30vh 0;
    max-height: 1000px;
}

.contact-divider {
    border-top: 1px solid var(--border-color);
}

.contact p {
    max-width: 790px;
    margin: 10px 50px 0 0;
    color: var(--header-color);
}

.contact a {
    color: var(--header-color);
}

footer {
    padding-top: 80px;
    padding-left: 0;
    font-size: var(--font-size-sm);
    opacity: 100%;
}

/* Shared Project Card Styles used by Home and Project Next Button */
.project-card-image-wrapper {
    width: 100%;
    aspect-ratio: 4 / 5;
    background: #f5f5f5;
    border-radius: var(--radius-md);
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

.project-card-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: opacity 0.12s ease;
}

.project-card:hover .project-card-image {
    opacity: 0.8;
}

.project-card-content {
    padding: 1rem 0;
    display: flex;
    flex-direction: column;
}

.project-card-content p {
    font-size: var(--font-size-base);
    color: var(--body-color);
    font-weight: 400;
    margin: 0;
}

.project-card-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--gap-sm);
    margin-top: var(--gap-sm);
}

.project-card-tag {
    font-size: var(--font-size-xs);
    color: var(--body-color);
    border: 1px solid rgba(0, 0, 0, 0.18);
    line-height: var(--line-height-tight);
    border-radius: var(--radius-sm);
    padding: 0.2em 0.5em;
    letter-spacing: 0.05em;
}

/* Desktop breakpoints */
@media screen and (min-width: 1400px) {
    :root {
        --sidebar-width: 212px;
    }
}

@media screen and (min-width: 1760px) {
    .content {
        margin-left: calc((100% - var(--content-max-width)) / 2);
        width: var(--content-max-width);
        border-right: 1px solid var(--border-color);
    }

    .sidebar {
        width: calc((100% - var(--content-max-width)) / 2);
    }
}

@media screen and (min-width: 2000px) {
    .content {
        max-width: var(--content-max-width);
    }
}

/* Base Mobile Breakpoints - Layout & Typography */
@media screen and (max-width: 1080px) {
    .sidebar {
        display: none;
    }

    body {
        display: block;
    }

    .content {
        margin-left: 0;
        width: 100%;
        padding: var(--gap-lg);
    }

    .mobile-header {
        display: flex;
        position: sticky;
        top: 0;
        left: 0;
        right: 0;
    }

    h1 {
        font-size: 3em;
    }
}

@media screen and (max-width: 680px) {
    h1 {
        font-size: 2.3em;
    }

    .quote {
        font-size: 1.3em;
        margin-right: 0 !important;
    }

    .content {
        margin-left: 0;
        width: 100%;
    }

    .contact {
        padding: 20vh 0;
    }
}

@media screen and (max-width: 400px) {
    h1 {
        font-size: 2.2em;
        line-height: 130%;
    }
}