/* 
   Larissa Terranova Portfolio Stylesheet
   Theme: Scholarly, Warm Neutral Paper, Stone, Jade, Obsidian, and Clay
   Typography: Cormorant Garamond (Serif) & Outfit (Sans-Serif)
*/

:root {
    /* Color Palette */
    --color-paper-light: #FAF7F2;
    --color-paper-dark: #F5F1E9;
    --color-stone: #E6E0D4;
    --color-obsidian: #1A1A1A;
    --color-obsidian-muted: #2E2E2E;
    --color-jade: #2A4D3E;
    --color-jade-light: #4A6E5D;
    --color-clay: #B35E46;
    --color-text-dark: #2B2A27;
    --color-text-muted: #615F59;
    --color-text-light: #FAF7F2;
    
    /* Fonts */
    --font-heading: 'Cormorant Garamond', serif;
    --font-body: 'Outfit', sans-serif;
    
    /* Layout */
    --header-height: 80px;
    --container-width: 1200px;
    --transition-smooth: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    background-color: var(--color-paper-light);
    color: var(--color-text-dark);
    font-family: var(--font-body);
    line-height: 1.7;
    overflow-x: hidden;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 600;
    color: var(--color-obsidian);
    line-height: 1.25;
}

p {
    margin-bottom: 1.5rem;
}

a {
    color: var(--color-jade);
    text-decoration: none;
    transition: var(--transition-smooth);
}

a:hover {
    color: var(--color-clay);
}

.text-center {
    text-align: center;
}

/* Layout Elements */
.container {
    width: 90%;
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 5rem 0;
}

section {
    position: relative;
    border-bottom: 1px solid rgba(26, 26, 26, 0.08);
}

/* Navigation Header */
.main-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--header-height);
    background: rgba(250, 247, 242, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(26, 26, 26, 0.05);
    z-index: 1000;
    transition: var(--transition-smooth);
}

.main-header.scrolled {
    height: 70px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.03);
}

.header-container {
    max-width: var(--container-width);
    width: 90%;
    height: 100%;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo-text {
    font-family: var(--font-heading);
    font-size: 1.6rem;
    font-weight: 700;
    letter-spacing: -0.01em;
    color: var(--color-obsidian);
}

.nav-menu ul {
    list-style: none;
    display: flex;
    align-items: center;
    gap: 2.2rem;
}

.nav-item {
    font-family: var(--font-body);
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--color-text-muted);
    position: relative;
    padding: 0.5rem 0;
}

.nav-item::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 1.5px;
    background-color: var(--color-clay);
    transition: var(--transition-smooth);
}

.nav-item:hover,
.nav-item.active {
    color: var(--color-obsidian);
}

.nav-item:hover::after,
.nav-item.active::after {
    width: 100%;
}

.contact-btn {
    background-color: var(--color-obsidian);
    color: var(--color-text-light) !important;
    padding: 0.7rem 1.4rem;
    border-radius: 4px;
    font-size: 0.9rem;
    font-weight: 600;
    border: 1px solid var(--color-obsidian);
}

.contact-btn:hover {
    background-color: transparent;
    color: var(--color-obsidian) !important;
}

.contact-btn::after {
    display: none;
}

/* Mobile Nav Toggle */
.mobile-nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.hamburger {
    display: block;
    width: 24px;
    height: 2px;
    background-color: var(--color-obsidian);
    position: relative;
    transition: var(--transition-smooth);
}

.hamburger::before,
.hamburger::after {
    content: '';
    position: absolute;
    width: 24px;
    height: 2px;
    background-color: var(--color-obsidian);
    left: 0;
    transition: var(--transition-smooth);
}

.hamburger::before {
    top: -6px;
}

.hamburger::after {
    top: 6px;
}

/* Hero Section */
.hero-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: var(--header-height);
    background-color: var(--color-paper-dark);
}

.hero-container {
    max-width: 900px;
    width: 90%;
    margin: 0 auto;
    padding: 6rem 0;
    position: relative;
    z-index: 2;
}

.hero-subtitle {
    font-family: var(--font-body);
    font-size: 1rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--color-clay);
    margin-bottom: 1.5rem;
}

.hero-headline {
    font-size: 3.5rem;
    font-weight: 600;
    letter-spacing: -0.02em;
    margin-bottom: 1.5rem;
}

.hero-tagline {
    font-family: var(--font-heading);
    font-style: italic;
    font-size: 1.8rem;
    color: var(--color-jade);
    margin-bottom: 2rem;
    line-height: 1.4;
}

.hero-description {
    font-size: 1.15rem;
    color: var(--color-text-muted);
    max-width: 750px;
    margin-bottom: 3rem;
}

.hero-cta {
    display: flex;
    gap: 1.5rem;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 1rem 2rem;
    border-radius: 6px;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition-smooth);
}

.btn-primary {
    background-color: var(--color-jade);
    color: var(--color-text-light);
    border: 1px solid var(--color-jade);
    box-shadow: 0 4px 15px rgba(42, 77, 62, 0.15);
}

.btn-primary:hover {
    background-color: var(--color-jade-light);
    border-color: var(--color-jade-light);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(42, 77, 62, 0.25);
    color: var(--color-text-light);
}

.btn-secondary {
    background-color: transparent;
    color: var(--color-obsidian);
    border: 1px solid rgba(26, 26, 26, 0.2);
}

.btn-secondary:hover {
    background-color: rgba(26, 26, 26, 0.03);
    border-color: var(--color-obsidian);
    transform: translateY(-2px);
}

.btn-block {
    display: flex;
    width: 100%;
}

.hero-scroll-indicator {
    position: absolute;
    bottom: 2.5rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.8rem;
    color: var(--color-text-muted);
    opacity: 0.7;
}

.scroll-text {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-weight: 600;
}

.scroll-line {
    width: 1px;
    height: 40px;
    background: linear-gradient(to bottom, var(--color-text-muted), transparent);
    animation: pulseScroll 2s infinite;
}

@keyframes pulseScroll {
    0% { transform: scaleY(0.3); transform-origin: top; }
    50% { transform: scaleY(1); transform-origin: top; }
    55% { transform: scaleY(1); transform-origin: bottom; }
    100% { transform: scaleY(0.3); transform-origin: bottom; }
}

/* Signature Quote Banner */
.signature-banner {
    background-color: var(--color-obsidian);
    color: var(--color-text-light);
    padding: 5rem 0;
    text-align: center;
    border: none;
}

.signature-quote {
    font-family: var(--font-heading);
    font-size: 2.4rem;
    font-style: italic;
    font-weight: 300;
    line-height: 1.4;
    max-width: 850px;
    margin: 0 auto;
    color: var(--color-stone);
}

/* Section Header */
.section-badge {
    display: inline-block;
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--color-clay);
    margin-bottom: 1rem;
}

.section-title {
    font-size: 2.8rem;
    margin-bottom: 1rem;
}

.section-subtitle {
    font-family: var(--font-heading);
    font-style: italic;
    font-size: 1.4rem;
    color: var(--color-text-muted);
    max-width: 650px;
    margin: 0 auto 3rem;
}

/* Focus Areas Section */
.focus-section {
    background-color: var(--color-paper-light);
}

.focus-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2.5rem;
    margin-top: 2rem;
}

.focus-card {
    background-color: var(--color-paper-dark);
    padding: 3rem 2.5rem;
    border-radius: 8px;
    border: 1px solid rgba(26, 26, 26, 0.04);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.01);
    transition: var(--transition-smooth);
}

.focus-card:hover {
    transform: translateY(-8px);
    border-color: rgba(42, 77, 62, 0.15);
    box-shadow: 0 15px 40px rgba(42, 77, 62, 0.05);
    background-color: #FAF8F5;
}

.focus-icon-wrapper {
    margin-bottom: 2rem;
}

.focus-num {
    font-family: var(--font-heading);
    font-size: 3.5rem;
    font-weight: 400;
    color: rgba(42, 77, 62, 0.15);
    line-height: 1;
    transition: var(--transition-smooth);
}

.focus-card:hover .focus-num {
    color: var(--color-clay);
}

.focus-card-title {
    font-size: 1.5rem;
    margin-bottom: 1.2rem;
    font-weight: 600;
}

.focus-card-desc {
    font-size: 0.98rem;
    color: var(--color-text-muted);
    margin-bottom: 0;
}

/* Heritage Lens Section */
.heritage-lens-section {
    background-color: var(--color-paper-dark);
}

.project-details-grid {
    display: grid;
    grid-template-columns: 4.5fr 7.5fr;
    gap: 3.5rem;
    align-items: start;
}

.lead-text {
    font-size: 1.3rem;
    line-height: 1.6;
    color: var(--color-obsidian);
    margin-bottom: 1.5rem;
    font-family: var(--font-heading);
}

.recognition-box {
    margin-top: 3rem;
    background-color: #FAF8F5;
    border-left: 3px solid var(--color-clay);
    padding: 2rem;
    border-radius: 0 8px 8px 0;
}

.recognition-title {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--color-obsidian);
    margin-bottom: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-family: var(--font-body);
}

.recognition-list {
    list-style: none;
}

.recognition-list li {
    position: relative;
    padding-left: 1.5rem;
    margin-bottom: 1rem;
    font-size: 0.95rem;
    color: var(--color-text-muted);
}

.recognition-list li:last-child {
    margin-bottom: 0;
}

.recognition-list li::before {
    content: '✦';
    position: absolute;
    left: 0;
    color: var(--color-clay);
}

/* Mock Browser Frame for Iframe */
.mock-browser-frame {
    background-color: #1e1e24;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 25px 60px rgba(0, 0, 0, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.08);
}

.browser-header {
    background-color: #121214;
    padding: 0.8rem 1.5rem;
    display: flex;
    align-items: center;
    justify-content: flex-start;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.browser-dots {
    display: flex;
    gap: 6px;
    margin-right: 2rem;
}

.dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
}

.dot.red { background-color: #FF5F56; }
.dot.yellow { background-color: #FFBD2E; }
.dot.green { background-color: #27C93F; }

.browser-address {
    background-color: #1E1E22;
    color: rgba(255, 255, 255, 0.4);
    font-size: 0.8rem;
    padding: 0.3rem 3rem;
    border-radius: 6px;
    font-family: monospace;
    flex-grow: 1;
    max-width: 400px;
    text-align: center;
}

.browser-content {
    background-color: #020617; /* Slate 950 matching the app */
    position: relative;
    height: 750px;
    width: 100%;
}

.streamlit-iframe {
    width: 100%;
    height: 100%;
    border: none;
    background-color: transparent;
}

/* About Section */
.about-section {
    background-color: var(--color-paper-light);
}

.about-grid {
    display: grid;
    grid-template-columns: 7fr 5fr;
    gap: 5rem;
    align-items: center;
}

.stone-sculpture-card {
    background-color: var(--color-paper-dark);
    padding: 4rem 3rem;
    border-radius: 12px;
    border: 1px solid rgba(26, 26, 26, 0.04);
    box-shadow: inset 0 0 40px rgba(0, 0, 0, 0.02);
    min-height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.stone-sculpture-inner {
    text-align: center;
    z-index: 2;
}

.watermark-symbol {
    display: block;
    font-family: var(--font-heading);
    font-size: 6rem;
    font-weight: 300;
    color: rgba(42, 77, 62, 0.04);
    line-height: 1;
    margin-bottom: 2rem;
}

.quote-aside {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    font-style: italic;
    color: var(--color-jade);
    line-height: 1.4;
}

/* Talks Section */
.talks-section {
    background-color: var(--color-paper-dark);
}

.timeline {
    position: relative;
    max-width: 900px;
    margin: 3rem auto 0;
    padding-left: 2rem;
    border-left: 1px solid rgba(26, 26, 26, 0.1);
}

.timeline-item {
    position: relative;
    margin-bottom: 4rem;
}

.timeline-item:last-child {
    margin-bottom: 0;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: -2.35rem;
    top: 0.4rem;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background-color: var(--color-clay);
    border: 2px solid var(--color-paper-dark);
    box-shadow: 0 0 0 4px rgba(179, 94, 70, 0.15);
    transition: var(--transition-smooth);
}

.timeline-item:hover::before {
    background-color: var(--color-jade);
    box-shadow: 0 0 0 6px rgba(42, 77, 62, 0.15);
}

.timeline-meta {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 0.8rem;
}

.timeline-year {
    font-family: var(--font-heading);
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--color-obsidian);
}

.timeline-location {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-weight: 600;
    background-color: rgba(26, 26, 26, 0.05);
    padding: 0.2rem 0.6rem;
    border-radius: 4px;
    color: var(--color-text-muted);
}

.timeline-title {
    font-size: 1.6rem;
    font-weight: 600;
    margin-bottom: 0.4rem;
}

.timeline-role {
    font-size: 0.95rem;
    color: var(--color-clay);
    font-weight: 600;
    margin-bottom: 1rem;
}

.timeline-desc {
    color: var(--color-text-muted);
    font-size: 0.98rem;
    margin-bottom: 0;
}

/* Writing Section */
.writing-section {
    background-color: var(--color-paper-light);
}

.publications-list {
    max-width: 900px;
    margin: 3rem auto 0;
}

.publication-item {
    display: grid;
    grid-template-columns: 80px 1fr;
    padding: 2.5rem 0;
    border-bottom: 1px solid rgba(26, 26, 26, 0.08);
    align-items: start;
    transition: var(--transition-smooth);
}

.publication-item:last-child {
    border-bottom: none;
}

.pub-number {
    font-family: var(--font-heading);
    font-size: 2rem;
    font-weight: 300;
    color: var(--color-clay);
    line-height: 1;
}

.pub-type {
    display: inline-block;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-jade);
    margin-bottom: 0.5rem;
}

.pub-title {
    font-size: 1.8rem;
    margin-bottom: 0.8rem;
    transition: var(--transition-smooth);
}

.publication-item:hover .pub-title {
    color: var(--color-clay);
}

.pub-desc {
    color: var(--color-text-muted);
    font-size: 0.98rem;
    margin-bottom: 0;
}

/* Contact Section */
.contact-section {
    background-color: var(--color-paper-dark);
}

.contact-grid {
    display: grid;
    grid-template-columns: 5fr 7fr;
    gap: 5rem;
}

.contact-info {
    padding-right: 2rem;
}

.location-detail {
    margin-top: 3rem;
    border-top: 1px solid rgba(26, 26, 26, 0.08);
    padding-top: 1.5rem;
}

.location-label {
    display: block;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-weight: 600;
    color: var(--color-text-muted);
    margin-bottom: 0.4rem;
}

.location-value {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--color-obsidian);
}

/* Forms */
.contact-form-wrapper {
    background-color: var(--color-paper-light);
    padding: 3.5rem;
    border-radius: 12px;
    border: 1px solid rgba(26, 26, 26, 0.04);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.02);
}

.elegant-form .form-group {
    margin-bottom: 2rem;
}

.elegant-form .form-group:last-of-type {
    margin-bottom: 2.5rem;
}

.elegant-form label {
    display: block;
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 0.6rem;
    color: var(--color-obsidian);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.elegant-form input,
.elegant-form textarea {
    width: 100%;
    padding: 1rem;
    border-radius: 6px;
    border: 1px solid rgba(26, 26, 26, 0.15);
    background-color: var(--color-paper-light);
    font-family: var(--font-body);
    font-size: 1rem;
    color: var(--color-text-dark);
    transition: var(--transition-smooth);
}

.elegant-form input:focus,
.elegant-form textarea:focus {
    outline: none;
    border-color: var(--color-jade);
    box-shadow: 0 0 0 3px rgba(42, 77, 62, 0.08);
}

.btn-spinner {
    display: none;
    width: 20px;
    height: 20px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: white;
    animation: spin 0.8s linear infinite;
    margin-left: 0.5rem;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.form-success-msg {
    display: none;
    margin-top: 1.5rem;
    padding: 1rem;
    border-radius: 6px;
    background-color: rgba(42, 77, 62, 0.08);
    border: 1px solid rgba(42, 77, 62, 0.15);
    color: var(--color-jade);
    font-size: 0.95rem;
    line-height: 1.5;
}

/* Footer */
.main-footer {
    background-color: var(--color-obsidian);
    color: rgba(255, 255, 255, 0.45);
    padding: 4rem 0;
    border-top: none;
    font-size: 0.9rem;
}

.main-footer p {
    margin-bottom: 0;
}

/* Scroll Reveal Animations */
.scroll-reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s cubic-bezier(0.165, 0.84, 0.44, 1);
}

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

/* Media Queries (Responsive Design) */
@media (max-width: 1024px) {
    .project-details-grid,
    .about-grid,
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .hero-headline {
        font-size: 2.8rem;
    }
}

@media (max-width: 768px) {
    .container {
        padding: 3.5rem 0;
    }
    
    .main-header {
        height: 70px;
    }
    
    .mobile-nav-toggle {
        display: block;
    }
    
    .nav-menu {
        position: fixed;
        top: 70px;
        left: 0;
        width: 100%;
        height: calc(100vh - 70px);
        background-color: var(--color-paper-light);
        padding: 3rem;
        transform: translateX(100%);
        transition: var(--transition-smooth);
        border-top: 1px solid rgba(26, 26, 26, 0.05);
    }
    
    .nav-menu.open {
        transform: translateX(0);
    }
    
    .nav-menu ul {
        flex-direction: column;
        align-items: flex-start;
        gap: 2rem;
    }
    
    .nav-item {
        font-size: 1.3rem;
    }
    
    .contact-btn {
        width: 100%;
        text-align: center;
        margin-top: 1rem;
    }
    
    /* Hamburger Active State */
    .hamburger.active {
        background-color: transparent;
    }
    
    .hamburger.active::before {
        transform: rotate(45deg) translate(5px, 5px);
    }
    
    .hamburger.active::after {
        transform: rotate(-45deg) translate(4px, -5px);
    }
    
    .hero-headline {
        font-size: 2.4rem;
    }
    
    .hero-tagline {
        font-size: 1.4rem;
    }
    
    .focus-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .signature-quote {
        font-size: 1.6rem;
    }
    
    .section-title {
        font-size: 2.2rem;
    }
    
    .browser-content {
        height: 600px;
    }
    
    .timeline {
        padding-left: 1.5rem;
    }
    
    .timeline-item::before {
        left: -1.85rem;
    }
    
    .publication-item {
        grid-template-columns: 1fr;
        gap: 0.5rem;
    }
    
    .pub-number {
        font-size: 1.5rem;
    }
    
    .contact-form-wrapper {
        padding: 2rem;
    }
}