/* i4 Clean Style (Swiss/International) */
:root {
    --color-primary: #0066ff; /* International Blue */
    --color-dark: #1d1d1f;   /* Apple-like dark gray */
    --color-light: #f5f5f7;  /* Light gray background */
    --color-white: #ffffff;
    --color-border: #d2d2d7;
    --font-stack: "SF Pro Display", -apple-system, BlinkMacSystemFont, "Helvetica Neue", sans-serif;
}

body {
    margin: 0;
    font-family: var(--font-stack);
    color: var(--color-dark);
    background-color: var(--color-white);
    line-height: 1.47;
    -webkit-font-smoothing: antialiased;
}

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

.container {
    max-width: 980px; /* Classic compact container */
    margin: 0 auto;
    padding: 0 20px;
}

/* Navbar */
.clean-nav {
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: saturate(180%) blur(20px);
    height: 48px;
    position: sticky;
    top: 0;
    z-index: 999;
    border-bottom: 1px solid rgba(0,0,0,0.1);
}

.nav-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 100%;
    font-size: 12px;
}

.brand-clean {
    font-weight: 600;
    font-size: 18px;
    letter-spacing: -0.5px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav-menu {
    display: flex;
    gap: 24px;
}

.nav-item {
    color: #424245;
    transition: color 0.3s;
}

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

/* Hero */
.clean-hero {
    background: var(--color-light);
    padding: 100px 0 80px;
    text-align: center;
    overflow: hidden;
}

.hero-headline {
    font-size: 56px;
    line-height: 1.07;
    font-weight: 700;
    letter-spacing: -0.005em;
    margin-bottom: 12px;
}

.hero-subhead {
    font-size: 24px;
    line-height: 1.2;
    font-weight: 400;
    color: #86868b;
    margin-bottom: 40px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero-links {
    display: flex;
    gap: 20px;
    justify-content: center;
    margin-bottom: 60px;
}

.btn-clean {
    font-size: 17px;
    font-weight: 400;
    padding: 18px 32px;
    border-radius: 980px;
    transition: all 0.3s;
}

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

.btn-clean-primary:hover {
    background: #0056d6;
}

.btn-clean-secondary {
    background: transparent;
    color: var(--color-primary);
    border: 1px solid var(--color-primary);
}

.btn-clean-secondary:hover {
    background: var(--color-primary);
    color: white;
}

/* Hero Image Composition */
.hero-comp {
    position: relative;
    height: 400px;
    max-width: 800px;
    margin: 0 auto;
}

.comp-device {
    background: white;
    border-radius: 20px;
    box-shadow: 0 40px 80px rgba(0,0,0,0.12);
    position: absolute;
    overflow: hidden;
}

.d-main {
    width: 600px;
    height: 350px;
    left: 100px;
    top: 0;
    z-index: 2;
    border: 1px solid #eee;
    display: flex;
}

.dm-sidebar {
    width: 150px;
    background: #fbfbfd;
    border-right: 1px solid #eee;
    padding: 20px;
}

.dm-line { height: 10px; background: #e5e5ea; border-radius: 5px; margin-bottom: 15px; }
.w-40 { width: 40%; }
.w-70 { width: 70%; }

.dm-content { flex: 1; padding: 30px; }
.dm-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.dm-card { height: 80px; background: #f5f5f7; border-radius: 12px; }

.d-float {
    width: 200px;
    height: 120px;
    z-index: 3;
    background: white;
    padding: 20px;
    display: flex;
    align-items: center;
    gap: 15px;
}

.df-left { bottom: 40px; left: 0; box-shadow: 0 20px 40px rgba(0,0,0,0.1); }
.df-right { top: 40px; right: 0; box-shadow: 0 20px 40px rgba(0,0,0,0.1); }

.icon-box { width: 50px; height: 50px; background: var(--color-primary); border-radius: 12px; color: white; display: flex; align-items: center; justify-content: center; font-size: 24px; }

/* Grid Section */
.clean-section {
    padding: 80px 0;
    background: white;
}

.section-head { text-align: center; margin-bottom: 60px; }
.section-title { font-size: 40px; font-weight: 700; margin-bottom: 10px; }

.feature-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
}

.f-tile {
    background: var(--color-light);
    padding: 40px;
    border-radius: 24px;
    overflow: hidden;
    position: relative;
    height: 400px;
    transition: transform 0.3s cubic-bezier(0.2, 0.8, 0.2, 1);
}

.f-tile:hover { transform: scale(1.01); }

.ft-content { position: relative; z-index: 2; }
.ft-eyebrow { font-size: 12px; font-weight: 600; color: #86868b; text-transform: uppercase; margin-bottom: 8px; }
.ft-title { font-size: 28px; font-weight: 700; margin-bottom: 12px; }
.ft-desc { font-size: 17px; color: #424245; line-height: 1.5; max-width: 300px; }

.ft-img-box {
    position: absolute;
    bottom: 0; right: 0;
    width: 300px; height: 200px;
    background: white;
    border-top-left-radius: 16px;
    box-shadow: -10px -10px 30px rgba(0,0,0,0.05);
}

.full-width { grid-column: span 2; background: black; color: white; height: 500px; display: flex; align-items: center; justify-content: center; text-align: center; }
.full-width .ft-desc { color: #a1a1a6; margin: 0 auto; }
.full-width .ft-img-box { display: none; }

/* Footer */
.clean-footer {
    background: #f5f5f7;
    padding: 40px 0 20px;
    font-size: 12px;
    color: #86868b;
}

.footer-links {
    display: flex;
    gap: 20px;
    margin-bottom: 20px;
    padding-bottom: 20px;
    border-bottom: 1px solid #d2d2d7;
}

.copyright { display: flex; justify-content: space-between; }