/* Kora Landing Page - Light/Dark Theme */

/* Import Noto Sans for CJK and Thai support */
@import url('https://fonts.googleapis.com/css2?family=Noto+Sans:wght@300;400;500;700;900&family=Noto+Sans+SC:wght@300;400;500;700;900&family=Noto+Sans+Thai:wght@300;400;500;700;900&display=swap');

/* CSS Variables for Theme */
:root {
    /* Dark Mode (Default) */
    --bg-primary: #0a0a09;
    --bg-secondary: #0f0f0e;
    --bg-tertiary: #1a1a19;
    --bg-quaternary: #2a2a29;
    --text-primary: #e5e5e0;
    --text-secondary: #a3a3a3;
    --accent-primary: #ff4d00;
    --border-color: rgba(229, 229, 224, 0.1);
    --border-color-medium: rgba(229, 229, 224, 0.2);
    --border-color-strong: rgba(229, 229, 224, 0.3);
    --overlay-bg: #e5e5e0;
    --overlay-text: #0a0a09;
    --selection-bg: #ff4d00;
    --selection-text: white;
    --inverted-text: #0a0a09;
    --inverted-bg: #e5e5e0;
    --feature-number: #1a1a19;
    --feature-number-hover: #2a2a29;
    --placeholder-color: rgba(10, 10, 9, 0.5);
}

[data-theme="light"] {
    /* Light Mode */
    --bg-primary: #f5f5f0;
    --bg-secondary: #ebebe6;
    --bg-tertiary: #e0e0db;
    --bg-quaternary: #d1d1cc;
    --text-primary: #1a1a19;
    --text-secondary: #5c5c5c;
    --accent-primary: #ff4d00;
    --border-color: rgba(26, 26, 25, 0.1);
    --border-color-medium: rgba(26, 26, 25, 0.2);
    --border-color-strong: rgba(26, 26, 25, 0.3);
    --overlay-bg: #1a1a19;
    --overlay-text: #f5f5f0;
    --selection-bg: #ff4d00;
    --selection-text: white;
    --inverted-text: #f5f5f0;
    --inverted-bg: #1a1a19;
    --feature-number: #e0e0db;
    --feature-number-hover: #d1d1cc;
    --placeholder-color: rgba(245, 245, 240, 0.5);
}

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

body {
    font-family: 'Inter', 'Noto Sans', 'Noto Sans SC', 'Noto Sans Thai', sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    overflow-x: hidden;
    width: 100%;
    min-height: 100vh;
    position: relative;
    transition: background-color 0.3s ease, color 0.3s ease;
}

::selection {
    background-color: var(--selection-bg);
    color: var(--selection-text);
}

button {
    background: none;
    border: none;
    cursor: pointer;
    font-family: inherit;
}

input {
    font-family: inherit;
}

/* Custom Utilities */
.stroke-text {
    -webkit-text-stroke: 2px var(--bg-primary);
    color: transparent;
}

/* Animations */
@keyframes spin-slow {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

@keyframes marquee {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}

@keyframes bounce {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-25%);
    }
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

.animate-spin-slow {
    animation: spin-slow 12s linear infinite;
}

.animate-marquee {
    animation: marquee 20s linear infinite;
}

.animate-bounce {
    animation: bounce 1s infinite;
}

.animate-pulse {
    animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

/* Navigation */
nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 50;
    padding: 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--text-primary);
}

.nav-logo {
    font-size: 1.25rem;
    font-weight: 700;
    letter-spacing: -0.05em;
    text-transform: uppercase;
    color: var(--text-primary);
}

.login-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    padding: 0.5rem 1rem;
    border: 1px solid var(--border-color-strong);
    border-radius: 4px;
    transition: all 0.3s;
    color: var(--text-primary);
    background-color: transparent;
}

.login-btn:hover {
    color: var(--inverted-text);
    background-color: var(--accent-primary);
    border-color: var(--accent-primary);
}

.login-btn svg {
    width: 16px;
    height: 16px;
}

.login-text {
    display: none;
}

.menu-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    transition: color 0.3s;
    color: var(--text-primary);
}

.menu-btn:hover {
    color: var(--accent-primary);
}

.menu-btn svg {
    color: var(--text-primary);
}

.menu-text {
    display: none;
}

@media (min-width: 768px) {
    .login-text {
        display: block;
    }

    .menu-text {
        display: block;
    }
}

.hidden {
    display: none;
}

/* Navigation Right Section */
.nav-right {
    display: flex;
    align-items: center;
    gap: 1rem;
}

/* Language Selector */
.language-selector {
    position: relative;
    z-index: 100;
}

.language-toggle {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 0.75rem;
    border: 1px solid var(--border-color-strong);
    border-radius: 0.5rem;
    background-color: transparent;
    color: var(--text-primary);
    font-size: 0.875rem;
    font-weight: 500;
    transition: all 0.3s;
    cursor: pointer;
}

.language-toggle:hover {
    border-color: var(--accent-primary);
    background-color: var(--bg-secondary);
}

.language-toggle svg {
    width: 1rem;
    height: 1rem;
    color: var(--text-primary);
}

.chevron-icon {
    transition: transform 0.3s;
}

.language-selector.open .chevron-icon {
    transform: rotate(180deg);
}

.current-language {
    display: none;
}

@media (min-width: 768px) {
    .current-language {
        display: inline;
    }
}

.language-dropdown {
    position: absolute;
    top: calc(100% + 0.5rem);
    right: 0;
    min-width: 180px;
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color-strong);
    border-radius: 0.5rem;
    padding: 0.5rem;
    display: none;
    flex-direction: column;
    gap: 0.25rem;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
}

.language-dropdown.show {
    display: flex;
}

.language-option {
    padding: 0.5rem 0.75rem;
    text-align: left;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-primary);
    background-color: transparent;
    border: none;
    border-radius: 0.25rem;
    cursor: pointer;
    transition: all 0.2s;
}

.language-option:hover {
    background-color: var(--bg-tertiary);
    color: var(--accent-primary);
}

/* Menu Overlay */
#menu-overlay {
    position: fixed;
    inset: 0;
    background-color: var(--accent-primary);
    z-index: 40;
    transform: translateY(-100%);
    transition: transform 500ms cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

#menu-overlay.translate-y-0 {
    transform: translateY(0);
}

.menu-content {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    text-align: center;
}

.menu-item {
    font-size: 3.75rem;
    font-weight: 900;
    color: var(--inverted-text);
    text-transform: uppercase;
    letter-spacing: -0.05em;
    transition: color 0.3s;
}

.menu-item:hover {
    color: var(--text-primary);
}

@media (min-width: 768px) {
    .menu-item {
        font-size: 6rem;
    }
}

/* Hero Section */
header {
    position: relative;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    padding-top: 8rem;
    padding-bottom: 3rem;
    padding-left: 1rem;
    padding-right: 1rem;
}

@media (min-width: 768px) {
    header {
        padding-left: 3rem;
        padding-right: 3rem;
    }
}

.hero-title-container {
    position: relative;
    z-index: 10;
    min-height: 60vh;
    display: flex;
    align-items: center;
    justify-content: flex-start;
}

/* Technical Drawing / Blueprint Style */

/* Grid Corner Coordinates */
.tech-grid-corner {
    position: absolute;
    font-family: 'Courier New', monospace;
    font-size: 0.75rem;
    color: var(--text-primary);
    opacity: 0.4;
    z-index: 1;
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    transition: transform 0.1s ease-out;
    will-change: transform;
}

.tech-label {
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.tech-coords {
    font-weight: 300;
    font-size: 0.7rem;
    opacity: 0.7;
}

.tech-grid-tl {
    top: 1rem;
    left: 1rem;
}

.tech-grid-tr {
    top: 1rem;
    right: 1rem;
    align-items: flex-end;
}

.tech-grid-bl {
    bottom: 1rem;
    left: 1rem;
}

.tech-grid-br {
    bottom: 1rem;
    right: 1rem;
    align-items: flex-end;
}

/* Vertical Technical Text Containers */
.tech-vertical-container {
    position: absolute;
    display: flex;
    flex-direction: column;
    align-items: center;
    z-index: 1;
    transition: transform 0.1s ease-out;
    will-change: transform;
}

.tech-left {
    left: 2rem;
    top: 20%;
}

.tech-right {
    right: 2rem;
    top: 35%;
}

.tech-vertical-text {
    writing-mode: vertical-rl;
    text-orientation: mixed;
    font-size: 1.5rem;
    font-weight: 300;
    letter-spacing: 0.4em;
    text-transform: uppercase;
    color: var(--text-primary);
    opacity: 0.3;
    margin: 0.5rem 0;
}

/* Connector Lines */
.tech-connector-line {
    width: 1px;
    background: var(--overlay-bg);
    opacity: 0.2;
    position: absolute;
}

.tech-line-left {
    height: 8rem;
    top: -4rem;
    left: 50%;
}

.tech-line-right {
    height: 8rem;
    bottom: -4rem;
    left: 50%;
}

/* Technical Markers */
.tech-marker {
    font-family: 'Courier New', monospace;
    font-size: 1rem;
    color: var(--text-primary);
    opacity: 0.3;
    margin-top: 0.5rem;
}

.hero-title {
    position: relative;
    z-index: 2;
    font-size: 18vw;
    line-height: 0.8;
    font-weight: 900;
    letter-spacing: -0.05em;
    text-transform: uppercase;
    color: var(--text-primary);
    mix-blend-mode: overlay;
    opacity: 0.9;
}

/* Responsive adjustments for technical drawing elements */
@media (max-width: 767px) {
    .tech-grid-corner {
        font-size: 0.625rem;
        opacity: 0.3;
    }

    .tech-coords {
        font-size: 0.6rem;
    }

    .tech-vertical-text {
        font-size: 1rem;
        letter-spacing: 0.3em;
        opacity: 0.2;
    }

    .tech-left {
        left: 0.5rem;
    }

    .tech-right {
        right: 0.5rem;
    }

    .tech-connector-line {
        opacity: 0.1;
    }

    .tech-line-left,
    .tech-line-right {
        height: 5rem;
    }
}

@media (min-width: 768px) {
    .tech-grid-corner {
        font-size: 0.8rem;
    }

    .tech-vertical-text {
        font-size: 1.75rem;
        letter-spacing: 0.45em;
    }

    .tech-left {
        left: 3rem;
    }

    .tech-right {
        right: 3rem;
    }

    .tech-connector-line {
        opacity: 0.25;
    }

    .tech-line-left,
    .tech-line-right {
        height: 10rem;
    }
}

@media (min-width: 1024px) {
    .tech-grid-corner {
        font-size: 0.875rem;
        opacity: 0.5;
    }

    .tech-vertical-text {
        font-size: 2rem;
        letter-spacing: 0.5em;
        opacity: 0.35;
    }

    .tech-left {
        left: 4rem;
    }

    .tech-right {
        right: 4rem;
    }

    .tech-connector-line {
        opacity: 0.3;
    }

    .tech-line-left,
    .tech-line-right {
        height: 12rem;
    }
}

.hero-footer {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    border-top: 1px solid var(--border-color-medium);
    padding-top: 2rem;
    margin-top: 3rem;
}

@media (min-width: 768px) {
    .hero-footer {
        grid-template-columns: repeat(12, 1fr);
    }
}

.hero-subtitle {
    grid-column: span 1;
}

@media (min-width: 768px) {
    .hero-subtitle {
        grid-column: span 5;
    }
}

.hero-subtitle p {
    font-size: 1.25rem;
    font-weight: 300;
    line-height: 1.4;
    color: var(--text-secondary);
}

@media (min-width: 768px) {
    .hero-subtitle p {
        font-size: 1.5rem;
    }
}

.hero-actions {
    grid-column: span 1;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    align-items: flex-end;
}

@media (min-width: 768px) {
    .hero-actions {
        grid-column: span 7;
        flex-direction: row;
    }
}

.hero-badges {
    display: flex;
    gap: 1rem;
    margin-bottom: 1rem;
}

@media (min-width: 768px) {
    .hero-badges {
        margin-bottom: 0;
    }
}

.badge {
    padding: 0.25rem 0.75rem;
    border: 1px solid var(--border-color-strong);
    border-radius: 9999px;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

/* Mission Section */
#mission {
    padding-top: 6rem;
    padding-bottom: 6rem;
    padding-left: 1rem;
    padding-right: 1rem;
    border-top: 1px solid var(--border-color);
}

@media (min-width: 768px) {
    #mission {
        padding-top: 12rem;
        padding-bottom: 12rem;
        padding-left: 3rem;
        padding-right: 3rem;
    }
}

.mission-container {
    max-width: 72rem;
    margin-left: auto;
    margin-right: auto;
}

.mission-title {
    font-size: 2.25rem;
    font-weight: 500;
    line-height: 1.2;
    letter-spacing: -0.025em;
}

@media (min-width: 768px) {
    .mission-title {
        font-size: 4.5rem;
    }
}

.mission-title .highlight {
    color: var(--accent-primary);
}

.mission-content {
    margin-top: 4rem;
    display: grid;
    grid-template-columns: 1fr;
    gap: 3rem;
}

@media (min-width: 768px) {
    .mission-content {
        grid-template-columns: repeat(2, 1fr);
    }
}

.mission-text {
    font-size: 1.125rem;
    color: var(--text-secondary);
    line-height: 1.75;
}

.mission-text .highlight {
    color: var(--accent-primary);
}

@media (min-width: 768px) {
    .mission-text {
        font-size: 1.25rem;
    }
}

/* Marquee Section */
.marquee-section {
    padding-top: 5rem;
    padding-bottom: 5rem;
    background-color: var(--inverted-bg);
    color: var(--inverted-text);
    overflow: hidden;
    white-space: nowrap;
}

.marquee-container {
    display: inline-flex;
}

.marquee-text {
    font-size: 12vw;
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: -0.05em;
    margin-left: 2rem;
    margin-right: 2rem;
}

/* Platform Section */
#platform {
    padding-top: 8rem;
    padding-bottom: 8rem;
    padding-left: 1rem;
    padding-right: 1rem;
}

@media (min-width: 768px) {
    #platform {
        padding-left: 3rem;
        padding-right: 3rem;
    }
}

.features-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1px;
    background-color: var(--border-color-medium);
    border: 1px solid var(--border-color-medium);
}

@media (min-width: 768px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .features-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

.feature-card {
    background-color: var(--bg-primary);
    padding: 2rem;
    transition: background-color 0.3s;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    min-height: 400px;
}

@media (min-width: 768px) {
    .feature-card {
        padding: 3rem;
    }
}

.feature-card:hover {
    background-color: var(--bg-tertiary);
}

.feature-icon {
    margin-bottom: 1.5rem;
    color: var(--accent-primary);
}

.feature-icon svg {
    width: 3rem;
    height: 3rem;
}

.feature-title {
    font-size: 1.5rem;
    font-weight: 700;
    text-transform: uppercase;
    margin-bottom: 1rem;
}

.feature-description {
    color: var(--text-secondary);
}

.feature-number {
    font-size: 3.75rem;
    font-weight: 900;
    color: var(--feature-number);
    transition: color 0.3s;
    align-self: flex-end;
}

.feature-card:hover .feature-number {
    color: var(--feature-number-hover);
}

/* Documentation Section */
#documentation {
    padding: 8rem 1rem;
    position: relative;
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
    background-color: var(--bg-secondary);
}

@media (min-width: 768px) {
    #documentation {
        padding: 12rem 3rem;
    }
}

.doc-container {
    max-width: 72rem;
    margin: 0 auto;
    position: relative;
}

/* Technical Grid Markers for Documentation */
.doc-tech-marker {
    position: absolute;
    font-family: 'Courier New', monospace;
    font-size: 0.75rem;
    color: var(--text-primary);
    opacity: 0.4;
    z-index: 1;
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.doc-marker-tl {
    top: 0;
    left: 0;
}

.doc-marker-tr {
    top: 0;
    right: 0;
    align-items: flex-end;
}

.doc-marker-bl {
    bottom: 0;
    left: 0;
}

.doc-marker-br {
    bottom: 0;
    right: 0;
    align-items: flex-end;
}

.doc-tech-label {
    font-size: 0.65rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    opacity: 0.6;
}

.doc-tech-coords {
    font-size: 0.6rem;
    color: var(--accent-primary);
    opacity: 0.8;
}

.doc-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: 3rem;
    padding: 2rem 0;
}

@media (min-width: 768px) {
    .doc-content {
        grid-template-columns: 1fr 1.5fr;
        gap: 6rem;
        padding: 3rem 0;
        align-items: center;
    }
}

.doc-header {
    position: relative;
}

.doc-title {
    font-size: 3rem;
    font-weight: 900;
    line-height: 0.9;
    text-transform: uppercase;
    letter-spacing: -0.02em;
    color: var(--text-primary);
    margin-bottom: 2rem;
    text-align: left;
}

@media (min-width: 768px) {
    .doc-title {
        font-size: 4.5rem;
        margin-bottom: 0;
    }
}

.doc-connector {
    width: 2px;
    height: 100%;
    background: linear-gradient(to bottom, var(--accent-primary) 0%, transparent 100%);
    position: absolute;
    right: 0;
    top: 0;
    opacity: 0.3;
    display: none;
}

@media (min-width: 768px) {
    .doc-connector {
        display: block;
    }
}

.doc-body {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    justify-content: center;
}

.doc-description {
    font-size: 1.125rem;
    line-height: 1.7;
    color: var(--text-secondary);
}

.doc-cta {
    display: inline-flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem 2rem;
    background-color: transparent;
    border: 2px solid var(--text-primary);
    color: var(--text-primary);
    font-size: 1rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    text-decoration: none;
    transition: all 0.3s;
    margin-top: 1rem;
    width: fit-content;
}

.doc-cta:hover {
    background-color: var(--accent-primary);
    border-color: var(--accent-primary);
    color: var(--inverted-text);
}

.doc-cta i {
    transition: transform 0.3s;
}

.doc-cta:hover i {
    transform: translateX(0.25rem);
}

/* Responsive adjustments for documentation markers */
@media (max-width: 767px) {
    .doc-tech-marker {
        font-size: 0.625rem;
        opacity: 0.3;
    }

    .doc-tech-label {
        font-size: 0.55rem;
    }

    .doc-tech-coords {
        font-size: 0.5rem;
    }
}

/* Emergency Disease Knowledge API Section */
#knowledge-api {
    padding: 8rem 1rem;
    position: relative;
    border-top: 1px solid var(--border-color);
    background-color: var(--bg-primary);
}

@media (min-width: 768px) {
    #knowledge-api {
        padding: 12rem 3rem;
    }
}

.knowledge-container {
    max-width: 72rem;
    margin: 0 auto;
    position: relative;
}

/* Technical Grid Markers for Knowledge API */
.knowledge-tech-marker {
    position: absolute;
    font-family: 'Courier New', monospace;
    font-size: 0.75rem;
    color: var(--text-primary);
    opacity: 0.4;
    z-index: 1;
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.knowledge-marker-tl {
    top: 0;
    left: 0;
}

.knowledge-marker-tr {
    top: 0;
    right: 0;
    align-items: flex-end;
}

.knowledge-marker-bl {
    bottom: 0;
    left: 0;
}

.knowledge-marker-br {
    bottom: 0;
    right: 0;
    align-items: flex-end;
}

.knowledge-tech-label {
    font-size: 0.65rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    opacity: 0.6;
}

.knowledge-tech-coords {
    font-size: 0.6rem;
    color: var(--accent-primary);
    opacity: 0.8;
}

.knowledge-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: 3rem;
    padding: 2rem 0;
}

@media (min-width: 768px) {
    .knowledge-content {
        grid-template-columns: 1.5fr 1fr;
        gap: 6rem;
        padding: 3rem 0;
        align-items: center;
    }
}

.knowledge-header {
    text-align: left;
    position: relative;
}

@media (min-width: 768px) {
    .knowledge-header {
        grid-column: 2;
        grid-row: 1;
        text-align: right;
    }
}

.knowledge-connector {
    width: 2px;
    height: 100%;
    background: linear-gradient(to bottom, var(--accent-primary) 0%, transparent 100%);
    position: absolute;
    left: 0;
    top: 0;
    opacity: 0.3;
    display: none;
}

@media (min-width: 768px) {
    .knowledge-connector {
        display: block;
    }
}

.knowledge-label {
    font-size: 0.875rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    color: var(--accent-primary);
    margin-bottom: 1rem;
}

.knowledge-title {
    font-size: 2.5rem;
    font-weight: 900;
    line-height: 0.95;
    text-transform: uppercase;
    letter-spacing: -0.02em;
    color: var(--text-primary);
}

@media (min-width: 768px) {
    .knowledge-title {
        font-size: 4rem;
    }
}

.knowledge-body {
    display: flex;
    flex-direction: column;
    gap: 2.5rem;
}

@media (min-width: 768px) {
    .knowledge-body {
        grid-column: 1;
        grid-row: 1;
    }
}

.knowledge-description {
    font-size: 1.125rem;
    line-height: 1.7;
    color: var(--text-secondary);
    max-width: 60rem;
}

.knowledge-features {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
}

@media (min-width: 768px) {
    .knowledge-features {
        grid-template-columns: repeat(3, 1fr);
        gap: 3rem;
    }
}

.knowledge-feature-item {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    padding: 2rem;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    transition: all 0.3s;
}

.knowledge-feature-item:hover {
    border-color: var(--accent-primary);
    background-color: var(--bg-tertiary);
}

.knowledge-feature-icon {
    width: 3rem;
    height: 3rem;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-primary);
}

.knowledge-feature-icon svg {
    width: 2rem;
    height: 2rem;
}

.knowledge-feature-title {
    font-size: 1.125rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.knowledge-feature-text {
    font-size: 0.9375rem;
    line-height: 1.6;
    color: var(--text-secondary);
}

/* Responsive adjustments for knowledge markers */
@media (max-width: 767px) {
    .knowledge-tech-marker {
        font-size: 0.625rem;
        opacity: 0.3;
    }

    .knowledge-tech-label {
        font-size: 0.55rem;
    }

    .knowledge-tech-coords {
        font-size: 0.5rem;
    }
}

/* Origins Section */
#origins {
    padding-top: 6rem;
    padding-bottom: 6rem;
    padding-left: 1rem;
    padding-right: 1rem;
    display: flex;
    flex-direction: column;
    gap: 3rem;
    align-items: flex-start;
}

@media (min-width: 768px) {
    #origins {
        padding-left: 3rem;
        padding-right: 3rem;
        flex-direction: row;
    }
}

.origins-sidebar {
    width: 100%;
}

@media (min-width: 768px) {
    .origins-sidebar {
        width: 33.333%;
        position: sticky;
        top: 8rem;
    }
}

.origins-label {
    font-size: 0.875rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--accent-primary);
    margin-bottom: 1rem;
}

.origins-title {
    font-size: 3rem;
    font-weight: 900;
    text-transform: uppercase;
    line-height: 1;
    margin-bottom: 2rem;
}

@media (min-width: 768px) {
    .origins-title {
        font-size: 3.75rem;
    }
}

.origins-description {
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.origins-cta {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--text-primary);
    border-bottom: 1px solid var(--text-primary);
    padding-bottom: 0.25rem;
    transition: all 0.3s;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-size: 0.875rem;
    font-weight: 700;
}

.origins-cta:hover {
    color: var(--accent-primary);
    border-bottom-color: var(--accent-primary);
}

.origins-cta svg {
    width: 1rem;
    height: 1rem;
}

.origins-cases {
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

@media (min-width: 768px) {
    .origins-cases {
        width: 66.667%;
    }
}

.case-item {
    border-bottom: 1px solid var(--border-color-medium);
    padding-bottom: 2rem;
    transition: all 0.3s;
    cursor: default;
}

.case-item:hover {
    padding-left: 2rem;
}

.case-header {
    margin-bottom: 0.5rem;
}

.case-title {
    font-size: 1.875rem;
    font-weight: 700;
    transition: color 0.3s;
}

@media (min-width: 768px) {
    .case-title {
        font-size: 2.25rem;
    }
}

.case-item:hover .case-title {
    color: var(--accent-primary);
}

.case-description {
    color: var(--text-secondary);
    max-width: 32rem;
}

/* Footer */
footer {
    background-color: var(--accent-primary);
    color: var(--inverted-text);
    padding-top: 6rem;
    padding-bottom: 3rem;
    padding-left: 1rem;
    padding-right: 1rem;
    margin-top: 6rem;
}

@media (min-width: 768px) {
    footer {
        padding-left: 3rem;
        padding-right: 3rem;
    }
}

.footer-top {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 6rem;
    gap: 3rem;
}

@media (min-width: 768px) {
    .footer-top {
        flex-direction: row;
        align-items: flex-end;
    }
}

.footer-heading-container {
    max-width: 42rem;
}

.footer-heading {
    font-size: 3.75rem;
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: -0.05em;
    line-height: 0.9;
    margin-bottom: 2rem;
}

@media (min-width: 768px) {
    .footer-heading {
        font-size: 6rem;
    }
}

.footer-subheading {
    font-size: 1.25rem;
    font-weight: 500;
    max-width: 28rem;
}

.footer-form-container {
    width: 100%;
}

@media (min-width: 768px) {
    .footer-form-container {
        width: auto;
    }
}

.footer-form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    width: 100%;
    min-width: auto;
}

@media (min-width: 768px) {
    .footer-form {
        min-width: 400px;
    }
}

.form-label {
    font-size: 0.875rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.form-input-container {
    display: flex;
    border-bottom: 2px solid #0a0a09;
    padding-bottom: 0.5rem;
}

.form-input {
    background: transparent;
    border: none;
    outline: none;
    width: 100%;
    font-size: 1.25rem;
    font-weight: 500;
    color: var(--inverted-text);
}

.form-input::placeholder {
    color: var(--placeholder-color);
}

.form-input:focus {
    outline: none;
}

.form-submit {
    text-transform: uppercase;
    font-weight: 700;
    transition: opacity 0.3s;
    color: var(--inverted-text);
}

.form-submit:hover {
    opacity: 0.5;
}

.form-disclaimer {
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-top: 1rem;
    opacity: 0.6;
}

.footer-bottom {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    align-items: center;
    border-top: 1px solid var(--border-color-medium);
    padding-top: 2rem;
    gap: 1rem;
}

@media (min-width: 768px) {
    .footer-bottom {
        flex-direction: row;
        flex-wrap: wrap;
    }
}

.footer-links {
    display: flex;
    gap: 2rem;
    font-size: 0.875rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.footer-links a {
    color: var(--inverted-text);
    text-decoration: none;
    transition: opacity 0.3s;
}

.footer-links a:hover {
    opacity: 0.6;
}

.footer-location {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.footer-location svg {
    width: 1rem;
    height: 1rem;
}

.footer-separator {
    opacity: 0.5;
    margin: 0 0.5rem;
}

.footer-acknowledgement {
    font-size: 0.75rem;
    text-transform: uppercase;
    font-weight: 700;
    opacity: 0.6;
    text-align: center;
    max-width: 600px;
    line-height: 1.4;
}

@media (min-width: 768px) {
    .footer-acknowledgement {
        font-size: 0.8rem;
    }
}

.footer-copyright {
    font-size: 0.75rem;
    text-transform: uppercase;
    font-weight: 700;
    opacity: 0.5;
}

/* Theme Toggle */
.theme-toggle {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem;
    border: 1px solid var(--border-color-strong);
    border-radius: 2rem;
    background-color: transparent;
    color: var(--text-primary);
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    transition: all 0.3s;
    cursor: pointer;
}

.theme-toggle:hover {
    border-color: var(--accent-primary);
    background-color: var(--accent-primary);
    color: var(--inverted-text);
}

.theme-toggle svg {
    width: 1rem;
    height: 1rem;
}