/* ============================================
   FoundaryLabs - Web3 Dark Theme Stylesheet
   ============================================ */

/* CSS Variables */
:root {
    --color-bg: #0a0a0f;
    --color-bg-card: rgba(20, 20, 30, 0.6);
    --color-bg-card-hover: rgba(30, 30, 45, 0.8);
    --color-text: #e8e8ed;
    --color-text-muted: #8888a0;
    --color-border: rgba(255, 255, 255, 0.1);
    --color-border-accent: rgba(6, 182, 212, 0.3);
    --color-accent: #06b6d4;
    --color-accent-purple: #a855f7;
    --color-gradient-start: #a855f7;
    --color-gradient-end: #06b6d4;
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-serif: 'Playfair Display', Georgia, serif;
    --radius: 16px;
    --radius-sm: 8px;
    --transition: 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    background: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    overflow-x: hidden;
}

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

/* Container */
.container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 1rem;
}

@media (min-width: 640px) {
    .container { padding: 0 1.5rem; }
}

@media (min-width: 1024px) {
    .container { padding: 0 2rem; }
}

/* ============================================
   Header
   ============================================ */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: rgba(10, 10, 15, 0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--color-border);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.logo {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    font-weight: 500;
}

.logo-foundary {
    color: var(--color-text);
}

.logo-labs {
    color: var(--color-accent);
}

.nav {
    display: none;
    gap: 2.5rem;
}

@media (min-width: 768px) {
    .nav { display: flex; }
}

.nav-link {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--color-text-muted);
    transition: color var(--transition);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--color-gradient-start), var(--color-gradient-end));
    transition: width var(--transition);
}

.nav-link:hover {
    color: var(--color-text);
}

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

.lang-switcher {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.lang-btn {
    padding: 0.25rem 0.5rem;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--color-text-muted);
    border: 1px solid transparent;
    border-radius: var(--radius-sm);
    transition: all var(--transition);
}

.lang-btn:hover {
    color: var(--color-text);
}

.lang-btn.active {
    color: var(--color-accent);
    border-color: var(--color-accent);
}

.lang-divider {
    color: var(--color-text-muted);
    opacity: 0.5;
}

.mobile-menu-btn {
    display: flex;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

@media (min-width: 768px) {
    .mobile-menu-btn { display: none; }
}

.mobile-menu-btn span {
    width: 24px;
    height: 2px;
    background: var(--color-text);
    transition: all var(--transition);
}

/* ============================================
   Hero Section
   ============================================ */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.6;
    animation: float 20s ease-in-out infinite;
}

.orb-1 {
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(168, 85, 247, 0.4), transparent 70%);
    top: -200px;
    left: -100px;
    animation-delay: 0s;
}

.orb-2 {
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(6, 182, 212, 0.3), transparent 70%);
    bottom: -150px;
    right: -100px;
    animation-delay: -7s;
}

.orb-3 {
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(168, 85, 247, 0.25), transparent 70%);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation-delay: -14s;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0) scale(1); }
    25% { transform: translate(30px, -30px) scale(1.05); }
    50% { transform: translate(-20px, 20px) scale(0.95); }
    75% { transform: translate(20px, 30px) scale(1.02); }
}

.grid-overlay {
    position: absolute;
    inset: 0;
    background-image: 
        linear-gradient(rgba(255,255,255,0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.02) 1px, transparent 1px);
    background-size: 60px 60px;
    mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    padding: 6rem 0;
}

.hero-line {
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, var(--color-gradient-start), var(--color-gradient-end));
    margin: 0 auto 3rem;
    border-radius: 2px;
}

.hero-headline {
    font-family: var(--font-serif);
    font-size: clamp(2.5rem, 8vw, 5rem);
    font-weight: 400;
    line-height: 1.1;
    margin-bottom: 1.5rem;
}

.hero-headline span {
    display: block;
}

.gradient-text {
    background: linear-gradient(135deg, var(--color-gradient-start), var(--color-gradient-end));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subhead {
    font-size: clamp(1rem, 2.5vw, 1.25rem);
    color: var(--color-text-muted);
    max-width: 700px;
    margin: 0 auto 2.5rem;
    line-height: 1.7;
}

.hero-cta {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 2rem;
    background: linear-gradient(135deg, rgba(168, 85, 247, 0.2), rgba(6, 182, 212, 0.2));
    border: 1px solid var(--color-border-accent);
    border-radius: 50px;
    font-weight: 500;
    color: var(--color-text);
    transition: all var(--transition);
}

.hero-cta:hover {
    background: linear-gradient(135deg, rgba(168, 85, 247, 0.3), rgba(6, 182, 212, 0.3));
    border-color: var(--color-accent);
    transform: translateY(-2px);
    box-shadow: 0 10px 40px rgba(6, 182, 212, 0.2);
}

.hero-cta svg {
    transition: transform var(--transition);
}

.hero-cta:hover svg {
    transform: translateY(3px);
}

.scroll-indicator {
    margin-top: 3rem;
}

.mouse {
    width: 26px;
    height: 40px;
    border: 2px solid var(--color-accent);
    border-radius: 13px;
    margin: 0 auto;
    position: relative;
}

.wheel {
    width: 4px;
    height: 8px;
    background: var(--color-accent);
    border-radius: 2px;
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    animation: scroll 2s ease-in-out infinite;
}

@keyframes scroll {
    0%, 100% { opacity: 1; transform: translateX(-50%) translateY(0); }
    50% { opacity: 0.3; transform: translateX(-50%) translateY(10px); }
}

/* Animations */
.animate-fade-up {
    opacity: 0;
    transform: translateY(30px);
    animation: fadeUp 0.8s ease forwards;
}

.delay-1 { animation-delay: 0.2s; }
.delay-2 { animation-delay: 0.4s; }
.delay-3 { animation-delay: 0.6s; }
.delay-4 { animation-delay: 0.8s; }

@keyframes fadeUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ============================================
   Sections Common
   ============================================ */
.section {
    padding: 6rem 0;
}

@media (min-width: 768px) {
    .section { padding: 8rem 0; }
}

.section-label {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 2rem;
}

.label-line {
    width: 3rem;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--color-accent));
}

.label-line:last-child {
    background: linear-gradient(90deg, var(--color-accent), transparent);
}

.label-text {
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--color-text-muted);
}

.label-text.accent {
    color: var(--color-accent);
}

.section-title {
    font-family: var(--font-serif);
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 400;
    text-align: center;
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.section-intro {
    font-size: 1.1rem;
    color: var(--color-text-muted);
    text-align: center;
    max-width: 700px;
    margin: 0 auto 3rem;
}

/* ============================================
   Philosophy Section
   ============================================ */
.philosophy {
    background: linear-gradient(180deg, var(--color-bg) 0%, rgba(20, 20, 30, 0.5) 100%);
}

.philosophy-content {
    max-width: 800px;
    margin: 0 auto;
}

.philosophy-text {
    font-size: 1.15rem;
    color: var(--color-text-muted);
    margin-bottom: 1.5rem;
    line-height: 1.8;
    text-align: center;
}

.philosophy-text.highlight {
    color: var(--color-text);
    font-style: italic;
    padding: 1.5rem;
    border-left: 3px solid var(--color-accent);
    background: var(--color-bg-card);
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    text-align: left;
}

/* ============================================
   Partners Section
   ============================================ */
.partners {
    background: var(--color-bg);
}

.partners-grid {
    display: grid;
    gap: 2rem;
    margin-top: 3rem;
}

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

.partner-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 2.5rem;
    transition: all var(--transition);
    position: relative;
    overflow: hidden;
}

.partner-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--color-gradient-start), var(--color-gradient-end));
    opacity: 0;
    transition: opacity var(--transition);
}

.partner-card:hover {
    border-color: var(--color-border-accent);
    transform: translateY(-5px);
    box-shadow: 0 20px 60px rgba(6, 182, 212, 0.1);
}

.partner-card:hover::before {
    opacity: 1;
}

.partner-icon {
    width: 56px;
    height: 56px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.strategist-icon {
    background: linear-gradient(135deg, rgba(168, 85, 247, 0.2), rgba(168, 85, 247, 0.1));
    color: var(--color-accent-purple);
}

.creative-icon {
    background: linear-gradient(135deg, rgba(6, 182, 212, 0.2), rgba(6, 182, 212, 0.1));
    color: var(--color-accent);
}

.partner-title {
    font-family: var(--font-serif);
    font-size: 1.75rem;
    font-weight: 500;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, var(--color-text), var(--color-text-muted));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.partner-desc {
    color: var(--color-text-muted);
    line-height: 1.7;
    margin-bottom: 1.5rem;
}

.partner-skills {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--color-accent-purple);
}

.partner-skills.accent {
    color: var(--color-accent);
}

/* ============================================
   Services Section
   ============================================ */
.services {
    background: linear-gradient(180deg, rgba(20, 20, 30, 0.3) 0%, var(--color-bg) 100%);
}

.services-list {
    max-width: 900px;
    margin: 3rem auto 0;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.service-item {
    display: flex;
    align-items: flex-start;
    gap: 1.5rem;
    padding: 2rem;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    transition: all var(--transition);
}

.service-item:hover {
    border-color: var(--color-border-accent);
    transform: translateX(10px);
}

.service-number {
    font-family: var(--font-serif);
    font-size: 1.25rem;
    font-weight: 500;
    color: var(--color-accent);
    opacity: 0.5;
}

.service-icon {
    width: 48px;
    height: 48px;
    flex-shrink: 0;
    background: linear-gradient(135deg, rgba(168, 85, 247, 0.15), rgba(6, 182, 212, 0.15));
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-accent);
}

.service-content {
    flex: 1;
}

.service-title {
    font-family: var(--font-serif);
    font-size: 1.35rem;
    font-weight: 500;
    margin-bottom: 0.5rem;
}

.service-desc {
    color: var(--color-text-muted);
    line-height: 1.7;
}

/* ============================================
   For Whom Section
   ============================================ */
.for-whom {
    background: var(--color-bg);
}

.types-grid {
    display: grid;
    gap: 1.5rem;
    margin-bottom: 3rem;
}

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

.type-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 2rem;
    text-align: center;
    transition: all var(--transition);
}

.type-card:hover {
    border-color: var(--color-border-accent);
    transform: translateY(-5px);
    box-shadow: 0 20px 60px rgba(6, 182, 212, 0.1);
}

.type-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 1.5rem;
    background: linear-gradient(135deg, rgba(168, 85, 247, 0.2), rgba(168, 85, 247, 0.1));
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-accent-purple);
}

.type-icon.gem {
    background: linear-gradient(135deg, rgba(6, 182, 212, 0.2), rgba(6, 182, 212, 0.1));
    color: var(--color-accent);
}

.type-icon.founder {
    background: linear-gradient(135deg, rgba(168, 85, 247, 0.15), rgba(6, 182, 212, 0.15));
    color: var(--color-gradient-end);
}

.type-title {
    font-family: var(--font-serif);
    font-size: 1.25rem;
    font-weight: 500;
    margin-bottom: 1rem;
}

.type-desc {
    color: var(--color-text-muted);
    font-size: 0.95rem;
    line-height: 1.7;
}

.investment-card {
    max-width: 800px;
    margin: 0 auto;
    padding: 3rem;
    background: linear-gradient(135deg, rgba(168, 85, 247, 0.1), rgba(6, 182, 212, 0.1));
    border: 1px solid var(--color-border-accent);
    border-radius: var(--radius);
    text-align: center;
}

.investment-icon {
    width: 72px;
    height: 72px;
    margin: 0 auto 1.5rem;
    background: linear-gradient(135deg, var(--color-gradient-start), var(--color-gradient-end));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
}

.investment-title {
    font-family: var(--font-serif);
    font-size: 2rem;
    font-weight: 500;
    margin-bottom: 1rem;
}

.investment-desc {
    color: var(--color-text-muted);
    line-height: 1.8;
    margin-bottom: 1.5rem;
}

.investment-note {
    font-size: 0.9rem;
    font-style: italic;
    color: var(--color-accent);
}

/* ============================================
   Contact Section
   ============================================ */
.contact {
    background: linear-gradient(180deg, var(--color-bg) 0%, rgba(20, 20, 30, 0.5) 100%);
}

.contact-grid {
    display: grid;
    gap: 1.5rem;
    max-width: 800px;
    margin: 0 auto;
}

@media (min-width: 640px) {
    .contact-grid { grid-template-columns: repeat(2, 1fr); }
}

.contact-tile {
    display: flex;
    align-items: center;
    gap: 1.25rem;
    padding: 1.5rem;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    transition: all var(--transition);
    position: relative;
}

.contact-tile:hover {
    border-color: var(--color-border-accent);
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(6, 182, 212, 0.15);
}

.tile-icon {
    width: 56px;
    height: 56px;
    flex-shrink: 0;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
}

.email .tile-icon {
    background: linear-gradient(135deg, #8b5cf6, #a855f7);
}

.telegram .tile-icon {
    background: linear-gradient(135deg, #38bdf8, #3b82f6);
}

.whatsapp .tile-icon {
    background: linear-gradient(135deg, #4ade80, #22c55e);
}

.viber .tile-icon {
    background: linear-gradient(135deg, #a855f7, #8b5cf6);
}

.tile-content {
    display: flex;
    flex-direction: column;
    flex: 1;
}

.tile-label {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    margin-bottom: 0.25rem;
}

.tile-value {
    font-size: 1.1rem;
    font-weight: 500;
    color: var(--color-text);
    transition: color var(--transition);
}

.contact-tile:hover .tile-value {
    color: var(--color-accent);
}

.tile-arrow {
    position: absolute;
    top: 1.5rem;
    right: 1.5rem;
    opacity: 0;
    color: var(--color-accent);
    transition: opacity var(--transition);
}

.contact-tile:hover .tile-arrow {
    opacity: 1;
}

/* ============================================
   Footer
   ============================================ */
.footer {
    padding: 3rem 0;
    background: var(--color-bg);
}

.footer-line {
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--color-border-accent), transparent);
    margin-bottom: 3rem;
}

.footer-inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
    text-align: center;
}

@media (min-width: 768px) {
    .footer-inner {
        flex-direction: row;
        justify-content: space-between;
        text-align: left;
    }
}

.footer-brand {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.footer-tagline {
    font-size: 0.9rem;
    color: var(--color-text-muted);
}

.footer-legal {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    font-size: 0.85rem;
    color: var(--color-text-muted);
}

@media (min-width: 768px) {
    .footer-legal { text-align: right; }
}

.footer-company {
    font-size: 0.8rem;
    opacity: 0.7;
}

/* ============================================
   Scroll Animations
   ============================================ */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

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