:root {
    --primary: #4F46E5;
    --primary-light: #EEF2FF;
    --primary-hover: #4338CA;
    --secondary: #1F2937;
    --accent: #818CF8;
    --text-dark: #111827;
    --text-main: #374151;
    --text-muted: #6B7280;
    --bg-white: #FFFFFF;
    --bg-light: #F9FAFB;
    --border: #E5E7EB;
    --radius: 12px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --shadow-soft: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
    --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.05), 0 4px 6px -2px rgba(0, 0, 0, 0.02);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-font-smoothing: antialiased;
}

body {
    font-family: 'Inter', 'Noto Sans JP', -apple-system, sans-serif;
    color: var(--text-main);
    background-color: var(--bg-white);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* Navbar */
.navbar {
    position: sticky;
    top: 0;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(16px);
    z-index: 1000;
    padding: 1.25rem 0;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

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

.logo {
    font-size: 1.4rem;
    font-weight: 800;
    color: var(--primary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    letter-spacing: -0.02em;
}

.nav-links {
    display: flex;
    gap: 2rem;
    align-items: center;
    list-style: none;
}

.nav-link {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-dark);
    text-decoration: none;
    transition: var(--transition);
}

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

.hamburger {
    display: none;
    flex-direction: column;
    justify-content: space-around;
    width: 24px;
    height: 18px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0;
    z-index: 1100;
}

.hamburger span {
    width: 24px;
    height: 2px;
    background: var(--text-dark);
    border-radius: 10px;
    transition: var(--transition);
    position: relative;
    transform-origin: 1px;
}

.hamburger.active span:nth-child(1) {
    transform: rotate(45deg);
}

.hamburger.active span:nth-child(2) {
    opacity: 0;
}

.hamburger.active span:nth-child(3) {
    transform: rotate(-45deg);
}

.btn {
    padding: 0.75rem 1.5rem;
    border-radius: 9999px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    font-size: 0.95rem;
}

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

.btn-primary:hover {
    background: var(--primary-hover);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(79, 70, 229, 0.3);
}

.btn-ghost {
    background: transparent;
    color: var(--text-dark);
}

.btn-ghost:hover {
    background: var(--bg-light);
}

/* Hero - Renew Style (Airy & Vision Focused) */
.hero {
    padding: 8rem 0 6rem;
    text-align: center;
    overflow: hidden;
}

.hero-tag {
    display: inline-block;
    padding: 0.5rem 1.25rem;
    background: var(--primary-light);
    color: var(--primary);
    border-radius: 9999px;
    font-size: 0.9rem;
    font-weight: 700;
    margin-bottom: 2rem;
    letter-spacing: 0.05em;
}

.hero h1 {
    font-size: 4rem;
    font-weight: 900;
    color: var(--text-dark);
    line-height: 1.1;
    margin-bottom: 1.5rem;
    letter-spacing: -0.03em;
}

.hero h1 span {
    color: var(--primary);
}

.hero p {
    font-size: 1.25rem;
    color: var(--text-muted);
    max-width: 700px;
    margin: 0 auto 3rem;
    font-weight: 400;
}

.hero-visual {
    margin-top: 4rem;
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
    filter: drop-shadow(0 20px 40px rgba(0,0,0,0.1));
    border-radius: 20px;
    overflow: hidden;
    max-height: 400px; /* Limit height */
}

.hero-visual img {
    width: 100%;
    height: 100%;
    object-fit: cover; /* Ensure it looks good while cropped */
    display: block;
}

/* Value Proposition (Mission Focused) */
.section {
    padding: 8rem 0;
}

.section-bg {
    background: var(--bg-light);
}

.section-title {
    margin-bottom: 5rem;
}

.section-title h2 {
    font-size: 2.25rem;
    font-weight: 800;
    color: var(--text-dark);
    margin-bottom: 1rem;
    letter-spacing: -0.02em;
}

.section-title p {
    font-size: 1.1rem;
    color: var(--text-muted);
}

/* Feature Grid - Apple Minimalist */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2.5rem;
}

.feature-card {
    background: var(--bg-white);
    padding: 3rem 2rem;
    border-radius: 24px;
    transition: var(--transition);
    border: 1px solid rgba(0, 0, 0, 0.03);
    text-align: left;
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-md);
    border-color: rgba(79, 70, 229, 0.1);
}

.icon-box {
    width: 48px;
    height: 48px;
    margin-bottom: 2rem;
    color: var(--primary);
}

.feature-card h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.feature-card p {
    font-size: 1rem;
    color: var(--text-muted);
    line-height: 1.7;
}

.feature-img {
    width: 100%;
    height: auto;
    border-radius: 12px;
    margin-bottom: 1.5rem;
    display: block;
}

/* Carousel Styles */
.internship-carousel {
    display: flex;
    overflow-x: auto;
    gap: 1.5rem;
    padding: 1rem 0 3rem;
    scroll-snap-type: x mandatory;
    scrollbar-width: none; /* Firefox */
}

.internship-carousel::-webkit-scrollbar {
    display: none; /* Chrome/Safari */
}

.internship-card {
    flex: 0 0 320px;
    scroll-snap-align: center;
    background: var(--bg-white);
    border-radius: 20px;
    overflow: hidden;
    transition: var(--transition);
    border: 1px solid rgba(0, 0, 0, 0.03);
}

.internship-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-md);
}

.internship-img {
    width: 100%;
    height: 180px;
    object-fit: cover;
}

.internship-content {
    padding: 2rem;
}

/* Scroll Reveal */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s ease-out;
}

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

/* Student Voices Section */
.voice-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-top: 4rem;
}

.voice-card {
    background: var(--bg-white);
    padding: 2.5rem;
    border-radius: 24px;
    border: 1px solid rgba(0, 0, 0, 0.03);
    transition: var(--transition);
}

.voice-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.voice-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.voice-img {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    object-fit: cover;
}

.voice-info h4 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 0.2rem;
}

.voice-info span {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.voice-quote {
    font-size: 1rem;
    line-height: 1.7;
    color: var(--text-main);
    position: relative;
    padding-top: 1rem;
}

.voice-quote::before {
    content: '"';
    position: absolute;
    top: -0.5rem;
    left: 0;
    font-size: 3rem;
    color: var(--primary-light);
    font-family: serif;
}
.steps {
    display: flex;
    justify-content: space-between;
    gap: 2rem;
    margin-top: 4rem;
}

.step-item {
    flex: 1;
    text-align: center;
    position: relative;
}

.step-num {
    font-size: 0.8rem;
    font-weight: 900;
    color: var(--primary);
    text-transform: uppercase;
    margin-bottom: 1rem;
    display: block;
}

.step-item h4 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
}

/* Footer */
footer {
    padding: 6rem 0 3rem;
    background: var(--bg-light);
}

.footer-top {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 4rem;
}

@media (max-width: 850px) {
    .navbar {
        padding: 0.75rem 0;
    }
    .hamburger {
        display: flex;
    }
    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        height: 100vh;
        background: #fff;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: 2rem;
        transition: var(--transition);
        box-shadow: -10px 0 30px rgba(0,0,0,0.1);
        z-index: 1050;
        padding: 2rem;
    }
    .nav-links.active {
        right: 0;
    }
    .nav-link {
        font-size: 1.2rem;
        font-weight: 700;
    }
    .logo {
        margin: 0;
        z-index: 1100;
    }
    .feature-grid { grid-template-columns: 1fr; gap: 1.5rem; }
    .hero { padding: 4rem 0 3rem; }
    .hero h1 { font-size: 2.25rem; line-height: 1.2; }
    .hero p { font-size: 1rem; margin-bottom: 2rem; }
    .hero-tag { font-size: 0.8rem; margin-bottom: 1.5rem; }
    .hero-visual { margin-top: 2.5rem; max-height: 250px; }
    .section { padding: 4rem 0; }
    .section-title { margin-bottom: 3rem; }
    .section-title h2 { font-size: 1.75rem; }
    .steps { flex-direction: column; text-align: left; gap: 3rem; }
    .voice-grid { grid-template-columns: 1fr; gap: 1.5rem; }
    .feature-card { padding: 2rem 1.5rem; }
}

/* Specific mobile tweak for small phones */
@media (max-width: 480px) {
    .hero h1 { font-size: 1.85rem; }
    .btn { width: 100%; padding: 1rem; }
}

/* SVG Icon Helper */
svg.icon {
    width: 100%;
    height: 100%;
}