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

:root {
    --color-black: #0a0a0a;
    --color-dark: #1a1a1a;
    --color-gray: #6b6b6b;
    --color-light: #f5f5f5;
    --color-white: #ffffff;
    --color-border: #e0e0e0;
    --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono: 'IBM Plex Mono', monospace;
    --max-width: 1200px;
    --spacing-section: 80px;
    --spacing-md: 40px;
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: var(--font-sans);
    color: var(--color-black);
    background: var(--color-white);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    position: relative;
}

body::before {
    content: '';
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 0;
    background-image:
        linear-gradient(45deg, #f0f0f0 25%, transparent 25%),
        linear-gradient(-45deg, #f0f0f0 25%, transparent 25%),
        linear-gradient(45deg, transparent 75%, #f0f0f0 75%),
        linear-gradient(-45deg, transparent 75%, #f0f0f0 75%);
    background-size: 20px 20px;
    background-position: 0 0, 0 10px, 10px -10px, -10px 0px;
    mask-image: linear-gradient(to right, rgba(0,0,0,0.2) 0%, transparent 25%, transparent 75%, rgba(0,0,0,0.2) 100%);
    -webkit-mask-image: linear-gradient(to right, rgba(0,0,0,0.2) 0%, transparent 25%, transparent 75%, rgba(0,0,0,0.2) 100%);
}

body > * {
    position: relative;
    z-index: 1;
}

a {
    color: inherit;
    text-decoration: none;
}

/* Container */
.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 40px;
}

/* Header / Navigation */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: var(--color-white);
    border-bottom: 1px solid var(--color-border);
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 20px 40px;
}

.nav-logo {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    font-weight: 500;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--color-border);
    transition: color 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

.nav-logo--hidden {
    visibility: hidden;
}

/* Home Logo (centered in hero) */
.home-logo {
    font-family: var(--font-mono);
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 500;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    text-align: center;
    margin-bottom: 48px;
    cursor: default;
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: visible;
}

.home-logo-text {
    position: relative;
    z-index: 1;
    display: inline-block;
}

/* Mouth animation */
.mouth-container {
    display: inline-block;
    width: 40px;
    height: 24px;
    vertical-align: middle;
    margin: 0 2px;
    position: relative;
}

.mouth {
    display: block;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    opacity: 0;
    transition: opacity 0.2s;
}

.home-logo:hover .mouth {
    opacity: 1;
}

.home-logo:hover .mouth-upper {
    animation: talkUpper 0.4s ease-in-out infinite;
}

.home-logo:hover .mouth-lower {
    animation: talkLower 0.4s ease-in-out infinite;
}

@keyframes talkUpper {
    0% { d: path("M5,12 Q20,12 35,12"); }
    25% { d: path("M5,10 Q20,6 35,10"); }
    50% { d: path("M5,11 Q20,9 35,11"); }
    75% { d: path("M5,10 Q20,6 35,10"); }
    100% { d: path("M5,12 Q20,12 35,12"); }
}

@keyframes talkLower {
    0% { d: path("M5,12 Q20,12 35,12"); }
    25% { d: path("M5,14 Q20,18 35,14"); }
    50% { d: path("M5,13 Q20,15 35,13"); }
    75% { d: path("M5,14 Q20,18 35,14"); }
    100% { d: path("M5,12 Q20,12 35,12"); }
}

/* Burst lines generated by JS */
.burst-line {
    position: absolute;
    background: var(--color-black);
    pointer-events: none;
    animation: lineShoot 0.8s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

.burst-line--left {
    right: 100%;
    width: 0;
}

.burst-line--right {
    left: 100%;
    width: 0;
}

@keyframes lineShoot {
    0% {
        width: 0;
        opacity: 1;
    }
    40% {
        width: 60px;
        opacity: 0.9;
    }
    100% {
        width: 180px;
        opacity: 0;
    }
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 36px;
}

.nav-links a {
    font-size: 0.9rem;
    font-weight: 400;
    color: var(--color-dark);
    transition: color var(--transition);
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1.5px;
    background: var(--color-black);
    transition: width 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.nav-links a:hover::after {
    width: 100%;
}

.nav-links a:hover {
    color: var(--color-black);
}

.nav-cta {
    padding: 8px 20px;
    border: 1px solid var(--color-black);
    border-radius: 4px;
    font-weight: 500;
    transition: background var(--transition), color var(--transition);
}

.nav-cta:hover {
    background: var(--color-black);
    color: var(--color-white) !important;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-black);
    transition: transform var(--transition);
}

/* Mobile Menu */
.mobile-menu {
    display: none;
    position: fixed;
    top: 65px;
    left: 0;
    right: 0;
    background: var(--color-white);
    border-bottom: 1px solid var(--color-border);
    padding: 24px 40px;
    z-index: 99;
    flex-direction: column;
    gap: 20px;
}

.mobile-menu.active {
    display: flex;
}

.mobile-menu a {
    font-size: 1.1rem;
    font-weight: 400;
}

/* Hero Section */
.hero {
    padding-top: 90px;
    padding-bottom: var(--spacing-section);
}

.hero-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 300;
    line-height: 1.15;
    letter-spacing: -0.02em;
    margin-bottom: 32px;
    max-width: 800px;
}

.hero-subtitle {
    font-size: clamp(1.1rem, 2vw, 1.35rem);
    line-height: 1.7;
    color: var(--color-gray);
    max-width: 680px;
    font-weight: 300;
}

/* Slogan */
.slogan {
    text-align: center;
    font-size: 1.1rem;
    font-weight: 300;
    color: var(--color-gray);
    letter-spacing: 0.05em;
    margin-bottom: 40px;
}

/* Inline Links */
.inline-link {
    text-decoration: underline;
    text-underline-offset: 3px;
    color: inherit;
    transition: opacity var(--transition);
}

.inline-link:hover {
    opacity: 0.6;
}

/* Mission Statement */
.mission-statement {
    max-width: 720px;
    margin: 0 auto;
    text-align: left;
}

/* Credentials Section */
.credentials {
    padding-bottom: var(--spacing-section);
    border-bottom: 1px solid var(--color-border);
}

.credentials-text {
    font-size: clamp(1.1rem, 1.8vw, 1.3rem);
    line-height: 1.8;
    color: var(--color-gray);
    max-width: 720px;
    font-weight: 300;
}

.credentials-text .highlight {
    color: var(--color-black);
    font-weight: 500;
}

/* Pillar Sections */
.pillar {
    padding: var(--spacing-section) 0;
    border-bottom: none;
    position: relative;
}

.pillar::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 800px;
    height: 1px;
    background: linear-gradient(to right, transparent, var(--color-border), var(--color-dark), var(--color-border), transparent);
}

.pillar:last-of-type {
    border-bottom: none;
}

.pillar-content {
    max-width: 720px;
    margin: 0 auto;
    text-align: left;
}

.pillar-title {
    font-size: clamp(1.8rem, 3.5vw, 2.8rem);
    font-weight: 300;
    line-height: 1.2;
    letter-spacing: -0.015em;
    margin-bottom: 28px;
}

.pillar-text {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--color-gray);
    font-weight: 300;
    margin-bottom: 24px;
}

.pillar-link {
    display: inline-block;
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--color-black);
    border-bottom: 1px solid var(--color-black);
    padding-bottom: 2px;
    transition: opacity var(--transition);
}

.pillar-link:hover {
    opacity: 0.6;
}

.pillar--first {
    border-top: none;
}

.pillar--emphasis {
    background: var(--color-light);
    border-bottom: none;
}

/* Tooltip */
.tooltip-wrapper {
    position: relative;
    display: inline-block;
}

.tooltip {
    position: absolute;
    bottom: calc(100% + 10px);
    left: 50%;
    transform: translateX(-50%);
    background: var(--color-white);
    color: var(--color-dark);
    padding: 14px 18px;
    border-radius: 10px;
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s, visibility 0.3s;
    display: flex;
    flex-direction: column;
    gap: 8px;
    pointer-events: none;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08), 0 1px 4px rgba(0, 0, 0, 0.04);
    border: 1px solid var(--color-border);
}

.tooltip.active {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
}

.tooltip::after {
    content: '';
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    border: 6px solid transparent;
    border-top-color: var(--color-white);
    filter: drop-shadow(0 1px 1px rgba(0,0,0,0.05));
}

.tooltip-email {
    color: var(--color-dark);
    font-size: 0.85rem;
    font-family: var(--font-mono);
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 10px;
    border-radius: 6px;
    border: 1px solid var(--color-border);
    transition: border-color 0.2s, background 0.2s;
}

.tooltip-email:hover {
    border-color: var(--color-dark);
    background: var(--color-light);
}

.tooltip-email .copy-icon {
    opacity: 0.5;
    transition: opacity 0.2s;
    flex-shrink: 0;
}

.tooltip-email:hover .copy-icon {
    opacity: 1;
}

.tooltip-email.copied .copy-icon {
    color: #22c55e;
    opacity: 1;
}

.tooltip a {
    color: var(--color-white);
    font-size: 0.85rem;
    font-family: var(--font-mono);
    text-decoration: underline;
    text-underline-offset: 2px;
}

.tooltip a:hover {
    opacity: 0.7;
}

.tooltip-wrapper:hover .tooltip {
    opacity: 1;
    visibility: visible;
}

/* CTA Section */
.cta {
    padding: var(--spacing-section) 0;
    position: relative;
}

.cta::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 800px;
    height: 1px;
    background: linear-gradient(to right, transparent, var(--color-border), var(--color-dark), var(--color-border), transparent);
}

.cta-title {
    font-size: clamp(2rem, 4vw, 3.2rem);
    font-weight: 300;
    line-height: 1.2;
    letter-spacing: -0.02em;
    margin-bottom: 24px;
}

.cta-text {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--color-gray);
    font-weight: 300;
    max-width: 600px;
    margin-bottom: 40px;
}

.cta-links {
    display: flex;
    align-items: center;
    gap: 32px;
    flex-wrap: wrap;
}

.cta-button {
    display: inline-block;
    padding: 14px 32px;
    background: var(--color-black);
    color: var(--color-white);
    font-size: 0.95rem;
    font-weight: 500;
    border-radius: 4px;
    transition: opacity var(--transition);
}

.cta-button:hover {
    opacity: 0.8;
}

.cta-social {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--color-black);
    border-bottom: 1px solid var(--color-black);
    padding-bottom: 2px;
    transition: opacity var(--transition);
}

.cta-social:hover {
    opacity: 0.6;
}

/* Footer */
.footer {
    border-top: 1px solid var(--color-border);
    padding: 32px 0;
    background: var(--color-white);
}

/* Ensure footer stays at bottom of page even on short content */
body {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

main {
    flex: 1;
}

/* Timeline */
.hero--compact {
    padding-top: 160px;
    padding-bottom: 40px;
}

.hero--compact .container {
    padding-left: 120px;
}

.timeline-section {
    padding-top: 0;
    padding-bottom: var(--spacing-section);
}

.timeline-section .container {
    padding-left: 120px;
}

.timeline {
    max-width: 720px;
}

.timeline-item {
    padding: 20px 0;
    border-bottom: 1px solid var(--color-border);
}

.timeline-item:first-child {
    padding-top: 0;
}

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

.timeline-date {
    display: block;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--color-gray);
    margin-bottom: 6px;
}

.timeline-title {
    font-size: clamp(1.1rem, 2vw, 1.4rem);
    font-weight: 400;
    line-height: 1.3;
    margin-bottom: 4px;
    display: flex;
    align-items: center;
}

.timeline-title a {
    position: relative;
    transition: color var(--transition);
}

.timeline-title a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 1.5px;
    background: var(--color-black);
    transition: width 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.timeline-title a:hover::after {
    width: 100%;
}

.timeline-title a:hover {
    color: var(--color-black);
}

.timeline-title .arrow {
    opacity: 0;
    margin-left: 8px;
    font-size: 1.1em;
    transition: opacity var(--transition), transform var(--transition);
}

.timeline-item:hover .timeline-title .arrow {
    opacity: 1;
    transform: translateX(4px);
}

.timeline-author {
    font-size: 0.85rem;
    color: var(--color-gray);
    font-weight: 300;
}

/* Resource Tags */
.timeline-resources {
    display: flex;
    gap: 8px;
    margin-top: 10px;
    flex-wrap: wrap;
}

.resource-tag {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 500;
    padding: 4px 12px;
    border: 1px solid var(--color-border);
    border-radius: 3px;
    color: var(--color-dark);
    transition: background var(--transition), color var(--transition);
}

.resource-tag:hover {
    background: var(--color-black);
    color: var(--color-white);
    border-color: var(--color-black);
}

/* Category Tags */
.category-tag {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 500;
    padding: 4px 12px;
    background: var(--color-light);
    border-radius: 3px;
    color: var(--color-gray);
}

.footer-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 16px;
}

.footer-copy {
    font-size: 0.85rem;
    color: var(--color-gray);
}

.footer-links {
    display: flex;
    gap: 24px;
}

.footer-links a {
    font-size: 0.85rem;
    color: var(--color-gray);
    transition: color var(--transition);
}

.footer-links a:hover {
    color: var(--color-black);
}

/* Animations */
@keyframes fadeUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1),
                transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Responsive */
@media (max-width: 768px) {
    :root {
        --spacing-section: 60px;
    }

    .container {
        padding: 0 20px;
    }

    .hero--compact .container,
    .timeline-section .container {
        padding-left: 20px;
        padding-right: 20px;
    }

    .nav {
        padding: 16px 20px;
    }

    .nav-links {
        display: none;
    }

    .nav-toggle {
        display: flex;
    }

    .hero {
        padding-top: 100px;
    }

    .home-logo {
        font-size: 2rem;
        margin-bottom: 32px;
    }

    .mission-statement {
        max-width: 100%;
    }

    .pillar-content {
        max-width: 100%;
    }

    .pillar::before,
    .cta::before {
        width: 90%;
    }

    .timeline {
        max-width: 100%;
    }

    .timeline-title {
        font-size: 1rem;
    }

    .cta-links {
        flex-direction: column;
        align-items: flex-start;
    }

    .footer-inner {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }

    .footer-links {
        justify-content: center;
    }

    .tooltip {
        left: 0;
        transform: translateX(0);
        white-space: normal;
        min-width: 260px;
    }

    .tooltip::after {
        left: 40px;
        transform: none;
    }

    .tooltip-email {
        font-size: 0.75rem;
    }

    .resource-tag {
        font-size: 0.7rem;
        padding: 3px 8px;
    }

    .category-tag {
        font-size: 0.7rem;
        padding: 3px 8px;
    }
}