:root {
    --nav-height: 5.2rem; /* Calculated: 1.5rem padding * 2 + logo height approx */
}

/* Font Faces */
@font-face {
    font-family: 'EB Garamond';
    src: url('../assets/fonts/eb-garamond-regular.woff2') format('truetype');
    font-weight: 400 800;
    font-display: swap;
}

@font-face {
    font-family: 'Inter';
    src: url('../assets/fonts/inter-regular.woff2') format('truetype');
    font-weight: 100 900;
    font-display: swap;
}

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

html {
    /* The Parchment base is always there to prevent white flashes */
    background-color: var(--parchment-bg);
}

.no-transition,
.no-transition * {
    transition: none !important;
}

body {
    background-color: transparent;
    color: var(--text-primary);
    font-family: var(--font-primary);
    line-height: 1.6;
    transition: color var(--transition-speed);
    min-height: 100vh;
    position: relative;
    overflow-x: hidden;
}

/* Texture Layer: Parchment */
body::before {
    content: "";
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: radial-gradient(hsl(40, 20%, 90%) 1px, transparent 0);
    background-size: 24px 24px;
    background-attachment: fixed;
    z-index: -2;
    opacity: var(--texture-opacity-parchment);
    transition: opacity var(--transition-speed);
    pointer-events: none;
}

/* Texture & Color Layer: Neon */
body::after {
    content: "";
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--neon-bg);
    background-image: 
        linear-gradient(30deg, #050505 12%, transparent 12.5%, transparent 87%, #050505 87.5%, #050505),
        linear-gradient(150deg, #050505 12%, transparent 12.5%, transparent 87%, #050505 87.5%, #050505),
        linear-gradient(60deg, #0a0a0a 25%, transparent 25.5%, transparent 75%, #0a0a0a 75%, #0a0a0a),
        linear-gradient(
            rgba(18, 16, 16, 0) 50%,
            rgba(0, 0, 0, 0.05) 50%
        ); /* Scanlines combined here */
    background-size: 80px 140px, 80px 140px, 80px 140px, 100% 4px;
    background-attachment: fixed;
    z-index: -1;
    opacity: var(--texture-opacity-neon);
    transition: opacity var(--transition-speed);
    pointer-events: none;
}

/* Navigation */
.top-nav {
    position: sticky;
    top: 0;
    z-index: 100;
    background-color: var(--card-bg);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    padding: 1.5rem 2rem;
    height: var(--nav-height);
    box-shadow: 0 2px 15px rgba(0,0,0,0.1);
    border-bottom: var(--card-border);
}

.top-nav nav {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    height: 100%;
}

.logo {
    font-size: 3rem; /* Enlarged logo */
    font-weight: 950;
    letter-spacing: -6px; /* Even tighter overlap */
    color: var(--text-primary); /* Use theme variable */
    text-transform: uppercase;
    line-height: 0.7;
    transition: all var(--transition-speed);
    text-shadow: var(--text-accent-shadow);
}

.logo:hover {
    transform: scale(1.05);
    filter: drop-shadow(0 0 10px hsla(180, 100%, 50%, 0.5));
}

.nav-right {
    margin-left: auto;
    display: flex;
    align-items: center;
    gap: 2.5rem;
}

.top-nav ul {
    list-style: none;
    display: flex;
    gap: 2rem;
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    z-index: 1001;
}

.hamburger {
    width: 30px;
    height: 20px;
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.hamburger span {
    display: block;
    width: 100%;
    height: 3px;
    background-color: var(--text-primary);
    border-radius: 3px;
    transition: all 0.3s ease;
}

.top-nav a {
    text-decoration: none;
    color: var(--text-secondary);
    font-weight: 600;
    transition: color var(--transition-speed);
}

.top-nav a:hover {
    color: var(--text-primary);
    text-shadow: var(--text-accent-shadow);
}

/* Layout Components */
main {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
}

/* Page Section */
.page-section {
    width: 100%;
    min-height: 70vh;
    padding: 6rem 0;
    display: flex;
    flex-direction: column;
}

/* Intro / Landing - Perfectly Centered */
.landing {
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    margin-top: calc(-1 * var(--nav-height)); /* Pull up to center on screen, not remaining space */
    text-align: center;
}

.section-heading {
    font-size: 3.5rem;
    margin-bottom: 3rem;
    color: var(--text-primary);
    
    /* The "Pre-Etched" State */
    text-shadow: none;
    transition: transform var(--stamp-speed) ease-out,
                opacity var(--stamp-speed) ease-out,
                text-shadow var(--stamp-speed) ease-out;
}

html.js .section-heading {
    opacity: 0;
}

/* Left-aligned headers slide from left */
.page-section:nth-of-type(odd) .section-heading {
    transform: translateX(-50px);
}

/* Right-aligned headers slide from right */
.page-section:nth-of-type(even) .section-heading {
    text-align: right;
    transform: translateX(50px);
}

/* The "Etched" State */
.section-heading.is-visible {
    opacity: 1 !important;
    transform: translateX(0) !important;
    text-shadow: var(--text-accent-shadow);
    animation: var(--header-animation);
}

/* The "Invisible Stamp" / Imprinted Container */
.content-card {
    padding: 4.5rem;
    border-radius: 24px;
    background-color: var(--card-bg); /* Use theme variable */
    border: var(--card-border); /* Use theme variable */
    backdrop-filter: blur(20px); /* Increased blur for better glass effect */
    -webkit-backdrop-filter: blur(20px);
    
    /* The Transition */
    transition: box-shadow var(--stamp-speed) ease-out,
                opacity var(--stamp-speed) ease-out,
                transform var(--stamp-speed) ease-out,
                background-color var(--transition-speed),
                border var(--transition-speed),
                backdrop-filter var(--transition-speed);
}

/* The "Ghost" State - Only applied when JS is active to prevent FOUD */
html.js .content-card {
    box-shadow: none;
    opacity: 0;
    transform: translateY(15px);
}

/* Exempt the landing card from being hidden */
html.js .landing .content-card {
    opacity: 1;
    transform: translateY(0);
    box-shadow: var(--surface-shadow-inner);
}

/* The "Stamped" State */
.content-card.is-visible {
    opacity: 1 !important;
    transform: translateY(0) !important;
    box-shadow: var(--surface-shadow-inner);
}

/* Specific content overrides */
.landing .content-card {
    width: 100%;
    max-width: 1000px;
    animation: var(--theme-animation);
}

.card-stack {
    display: flex;
    flex-direction: column;
    gap: 4rem;
    width: 100%;
}

/* Uniform cards for experience/education */
.experience-item, .education-item, .card-stack .content-card {
    width: 100%;
    max-width: 900px;
}

.page-section:nth-of-type(even) .card-stack {
    align-items: flex-end;
}

#contact {
    padding-bottom: 0;
}

.main-title {
    font-size: 6.5rem;
    margin-bottom: 1.5rem;
    text-shadow: var(--text-accent-shadow);
    line-height: 1.1;
    animation: var(--header-animation);
}

.tagline {
    font-size: 1.8rem;
    color: var(--text-secondary);
    text-align: center;
}

/* Skills Grid */
.skills-container {
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
    justify-content: center;
}

.skill-tag {
    padding: 0.8rem 1.8rem;
    border-radius: 50px;
    background-color: var(--card-bg);
    border: var(--card-border);
    font-weight: 600;
    color: var(--text-primary);
    box-shadow: var(--surface-shadow-outer);
    transition: all var(--transition-speed);
}

.skill-tag:hover {
    transform: translateY(-2px);
    box-shadow: var(--surface-shadow-inner);
}

.meta {
    font-style: italic;
    color: var(--text-secondary);
    margin-bottom: 1rem;
    font-weight: 500;
}

.role-progression {
    margin: 1.5rem 0;
    padding-left: 1.5rem;
    border-left: 2px solid hsla(40, 10%, 15%, 0.1);
}

.role-progression p {
    font-size: 1.1rem;
    margin-bottom: 0.8rem;
    color: var(--text-primary);
}

.date-tag {
    font-style: italic;
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-left: 0.5rem;
}

.achievements {
    list-style: square;
    margin-left: 1.5rem;
}

/* Theme Toggle Button */
.theme-btn {
    background: none;
    border: none;
    cursor: pointer;
    font-size: 1.8rem;
    padding: 0.5rem;
    border-radius: 50%;
    display: flex;
    align-items: center;
}

.site-footer {
    text-align: center;
    padding: 2rem 2rem 6rem;
    color: var(--text-secondary);
}

/* Contact & Socials */
.social-links {
    margin-top: 2rem;
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.social-btn {
    text-decoration: none;
    padding: 0.8rem 1.5rem;
    border-radius: 12px;
    font-weight: 600;
    color: var(--text-primary);
    background-color: var(--card-bg);
    border: var(--card-border);
    box-shadow: var(--surface-shadow-outer);
    transition: all var(--transition-speed);
}

.social-btn:hover {
    transform: translateY(-3px);
    box-shadow: var(--surface-shadow-inner);
    color: var(--text-primary);
}

/* Responsive */
@media (max-width: 768px) {
    .mobile-menu-btn {
        display: block;
    }

    .nav-links {
        position: fixed;
        right: 0;
        top: 0;
        height: 100vh;
        width: 100%;
        background-color: var(--bg-color);
        background-image: var(--paper-texture);
        background-size: var(--paper-texture-size);
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 3rem !important;
        transform: translateX(100%);
        transition: transform 0.5s cubic-bezier(0.77, 0.2, 0.05, 1.0);
        z-index: 1000;
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        border-left: var(--card-border);
    }

    .nav-links.nav-active {
        transform: translateX(0);
    }

    /* Hamburger Animation to X */
    .mobile-menu-btn.is-active .hamburger span:nth-child(1) {
        transform: translateY(8.5px) rotate(45deg);
    }
    .mobile-menu-btn.is-active .hamburger span:nth-child(2) {
        opacity: 0;
    }
    .mobile-menu-btn.is-active .hamburger span:nth-child(3) {
        transform: translateY(-8.5px) rotate(-45deg);
    }
    
    .main-title {
        font-size: 3.5rem;
    }

    .landing {
        margin-top: 0; /* Reset offset on mobile where nav might behave differently */
    }

    .content-card {
        padding: 2.5rem;
    }
}