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

:root {
    --primary-color: #171a20;
    --primary-dark: #000000;
    --accent-color: #3e6ae1;
    --dark-bg: #000000;
    --light-bg: #f4f4f4;
    --mid-bg: #e8e8e8;
    --text-dark: #171a20;
    --text-light: #5c5e62;
    --text-lighter: #878787;
    --white: #ffffff;
    --shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.12);
    --transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    opacity: 0;
    transition: opacity 0.3s ease;
}

body.loaded {
    opacity: 1;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.04);
    z-index: 1000;
    padding: 0.8rem 0;
    transition: var(--transition);
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.97);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand h1 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-dark);
    letter-spacing: -0.5px;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 1.5rem;
}

.nav-menu a {
    text-decoration: none;
    color: var(--text-dark);
    font-weight: 500;
    font-size: 0.95rem;
    transition: var(--transition);
    padding: 0.5rem 1rem;
    border-radius: 4px;
}

.nav-menu a:hover {
    background-color: rgba(0, 0, 0, 0.03);
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 4px;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--text-dark);
    transition: 0.3s ease;
}

/* Hero Section */
.hero {
    padding: 160px 0 100px;
    background: linear-gradient(rgba(0, 0, 0, 0.4), rgba(0, 0, 0, 0.5)),
                url('https://images.unsplash.com/photo-1530836369250-ef72a3f5cda8?q=80&w=2070&auto=format&fit=crop') center/cover no-repeat;
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    background-attachment: fixed;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(180deg, rgba(0, 0, 0, 0.3) 0%, rgba(0, 0, 0, 0.6) 100%);
    z-index: 1;
}

.ripple-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 2;
    pointer-events: auto;
    cursor: pointer;
}

.hero-content {
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
    position: relative;
    z-index: 3;
    opacity: 0;
    animation: heroFadeIn 1.2s cubic-bezier(0.4, 0, 0.2, 1) 0.3s forwards;
    pointer-events: none;
}

.hero-content .btn {
    pointer-events: auto;
}

.badge {
    display: inline-block;
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    color: var(--white);
    border: 1px solid rgba(255, 255, 255, 0.2);
    padding: 0.5rem 1.2rem;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    margin-bottom: 2rem;
    opacity: 0;
    animation: fadeInUp 1s cubic-bezier(0.4, 0, 0.2, 1) 0.5s forwards;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    line-height: 1.1;
    letter-spacing: -1.5px;
    color: var(--white);
    opacity: 0;
    animation: fadeInUp 1s cubic-bezier(0.4, 0, 0.2, 1) 0.7s forwards;
    text-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
}

.gradient-text {
    color: var(--white);
}

.hero-subtitle {
    font-size: 1.15rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 2.5rem;
    max-width: 650px;
    margin-left: auto;
    margin-right: auto;
    font-weight: 400;
    line-height: 1.6;
    opacity: 0;
    animation: fadeInUp 1s cubic-bezier(0.4, 0, 0.2, 1) 0.9s forwards;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    opacity: 0;
    animation: fadeInUp 1s cubic-bezier(0.4, 0, 0.2, 1) 1.1s forwards;
}

.btn {
    display: inline-block;
    padding: 0.75rem 2rem;
    border-radius: 4px;
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    transition: var(--transition);
    border: none;
    cursor: pointer;
}

.btn-primary {
    background: var(--white);
    color: var(--text-dark);
}

.btn-primary:hover {
    background: rgba(255, 255, 255, 0.9);
    transform: translateY(-2px);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.3);
}

.btn-secondary {
    background: transparent;
    color: var(--white);
    border: 2px solid var(--white);
}

.btn-secondary:hover {
    background: var(--white);
    color: var(--text-dark);
    transform: translateY(-2px);
}

/* Achievement Section */
.achievement {
    padding: 80px 0;
    background: var(--light-bg);
}

.achievement-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 0;
}

.achievement-item {
    text-align: center;
    padding: 3rem 2rem;
    background: var(--light-bg);
    transition: var(--transition);
    border-right: 1px solid rgba(0, 0, 0, 0.08);
}

.achievement-item:last-child {
    border-right: none;
}

.achievement-item:hover {
    background: var(--white);
}

.achievement-item h3 {
    font-size: 2.5rem;
    color: var(--text-dark);
    margin-bottom: 0.5rem;
    font-weight: 600;
    letter-spacing: -1px;
}

.achievement-item p {
    color: var(--text-light);
    font-weight: 500;
    font-size: 0.95rem;
}

/* About Section */
.about {
    padding: 120px 0;
    background: var(--white);
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-header h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    font-weight: 600;
    letter-spacing: -1px;
    color: var(--text-dark);
}

.section-header p {
    color: var(--text-light);
    font-size: 1rem;
    font-weight: 400;
}

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

.about-text h3 {
    font-size: 1.5rem;
    margin: 2.5rem 0 1rem;
    color: var(--text-dark);
    font-weight: 600;
    letter-spacing: -0.5px;
}

.about-text p {
    font-size: 1rem;
    color: var(--text-light);
    margin-bottom: 1.5rem;
    line-height: 1.7;
    font-weight: 400;
}

blockquote {
    background: var(--light-bg);
    border-left: 3px solid var(--text-dark);
    padding: 1.5rem 2rem;
    margin: 2.5rem 0;
    border-radius: 0;
    font-style: italic;
    color: var(--text-light);
    box-shadow: none;
}

/* Technology Section */
.technology {
    padding: 120px 0;
    background: var(--light-bg);
}

.tech-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 1px;
    background: rgba(0, 0, 0, 0.08);
}

.tech-card {
    background: var(--white);
    padding: 2.5rem;
    transition: var(--transition);
    border: none;
}

.tech-card:hover {
    background: var(--light-bg);
}

.tech-icon {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    color: var(--text-dark);
    opacity: 0.85;
}

.tech-icon i {
    display: block;
}

.tech-card h3 {
    font-size: 1.35rem;
    margin-bottom: 1rem;
    color: var(--text-dark);
    font-weight: 600;
    letter-spacing: -0.3px;
}

.tech-card p {
    color: var(--text-light);
    line-height: 1.6;
    font-size: 0.95rem;
}

/* Team Section */
.team {
    padding: 120px 0;
    background: var(--white);
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1px;
    margin-bottom: 3rem;
    background: rgba(0, 0, 0, 0.08);
}

.team-card {
    background: var(--white);
    padding: 2.5rem 2rem;
    text-align: center;
    transition: var(--transition);
}

.team-card:hover {
    background: var(--light-bg);
}

.team-avatar {
    width: 90px;
    height: 90px;
    border-radius: 50%;
    background: var(--text-dark);
    color: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 600;
    margin: 0 auto 1.5rem;
}

.team-card h3 {
    font-size: 1.15rem;
    margin-bottom: 0.5rem;
    color: var(--text-dark);
    font-weight: 600;
    letter-spacing: -0.3px;
}

.team-role {
    color: var(--text-light);
    font-weight: 500;
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
}

.team-credential {
    color: var(--text-lighter);
    font-size: 0.9rem;
    line-height: 1.5;
}

.advisor-section {
    text-align: center;
    padding: 2.5rem;
    background: var(--light-bg);
    border-radius: 0;
}

.advisor-section h3 {
    color: var(--text-dark);
    margin-bottom: 1rem;
    font-size: 1.35rem;
    font-weight: 600;
    letter-spacing: -0.3px;
}

.advisor-section p {
    color: var(--text-light);
    font-size: 1rem;
}

/* Vision Section */
.vision {
    padding: 120px 0;
    background: var(--light-bg);
}

.vision-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(450px, 1fr));
    gap: 1px;
    background: rgba(0, 0, 0, 0.08);
}

.vision-item {
    background: var(--white);
    padding: 3rem;
    transition: var(--transition);
}

.vision-item:hover {
    background: var(--light-bg);
}

.vision-item h3 {
    font-size: 1.5rem;
    margin-bottom: 2rem;
    color: var(--text-dark);
    font-weight: 600;
    letter-spacing: -0.5px;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.vision-item h3 i {
    font-size: 1.35rem;
    opacity: 0.85;
}

.vision-item ul {
    list-style: none;
}

.vision-item li {
    padding: 0.9rem 0 0.9rem 1.5rem;
    color: var(--text-light);
    font-size: 0.95rem;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    line-height: 1.5;
    position: relative;
}

.vision-item li:before {
    content: "";
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 4px;
    height: 4px;
    background: var(--text-dark);
    border-radius: 50%;
}

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

/* Contact Section */
.contact {
    padding: 120px 0;
    background: var(--white);
}

.contact-content {
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
}

.contact-content p {
    font-size: 1rem;
    color: var(--text-light);
    margin-bottom: 2.5rem;
    line-height: 1.7;
}

.contact-info {
    background: var(--light-bg);
    padding: 2.5rem;
    border-radius: 0;
}

.contact-info p {
    margin-bottom: 0.5rem;
    color: var(--text-light);
    font-size: 0.95rem;
}

/* Footer */
.footer {
    background: var(--dark-bg);
    color: var(--white);
    padding: 3rem 0 2rem;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.15);
}

.footer-brand h3 {
    color: var(--white);
    margin-bottom: 0.5rem;
    font-weight: 600;
    font-size: 1.25rem;
    letter-spacing: -0.3px;
}

.footer-brand p {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.9rem;
}

.footer-email {
    margin-top: 0.5rem;
}

.footer-email a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: var(--transition);
    font-size: 0.9rem;
}

.footer-email a:hover {
    color: var(--white);
}

.footer-links {
    display: flex;
    gap: 2rem;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: var(--transition);
    font-size: 0.9rem;
    font-weight: 500;
}

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

.footer-bottom {
    text-align: center;
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.85rem;
}

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

@keyframes heroFadeIn {
    from {
        opacity: 0;
        transform: scale(0.98);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.95);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* Responsive Design */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: var(--white);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 27px rgba(0, 0, 0, 0.05);
        padding: 2rem 0;
    }

    .nav-menu.active {
        left: 0;
    }

    .hero {
        background-attachment: scroll;
        padding: 140px 0 80px;
    }

    .hero-title {
        font-size: 2.5rem;
        letter-spacing: -1px;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }

    .btn {
        width: 100%;
        max-width: 300px;
    }

    .achievement-grid {
        grid-template-columns: 1fr;
    }

    .tech-grid {
        grid-template-columns: 1fr;
    }

    .team-grid {
        grid-template-columns: 1fr;
    }

    .vision-content {
        grid-template-columns: 1fr;
    }

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

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

    .section-header h2 {
        font-size: 2rem;
    }
}

@media (max-width: 480px) {
    .hero {
        padding: 120px 0 60px;
    }

    .hero-title {
        font-size: 1.75rem;
        letter-spacing: -0.5px;
    }

    .hero-subtitle {
        font-size: 0.95rem;
    }

    .badge {
        font-size: 0.7rem;
        padding: 0.4rem 0.9rem;
    }

    .achievement-item h3 {
        font-size: 2rem;
    }

    .vision-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .vision-item {
        min-width: auto;
    }
}