:root {
    --text: #1d1d1f;
    --text-secondary: #86868b;
    --bg: #f5f5f7;
    --primary: #0071e3;
    --link: #06c;
    --border: #d2d2d7;
}

body {
    margin: 0;
    padding: 0;
    font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Helvetica Neue", Arial, sans-serif;
    background-color: var(--bg);
    color: var(--text);
    -webkit-font-smoothing: antialiased;
}

.apple-nav {
    background: rgba(251, 251, 253, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    height: 44px;
    display: flex;
    justify-content: center;
    position: sticky;
    top: 0;
    z-index: 1000;
}

.nav-content {
    width: 100%;
    max-width: 980px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 20px;
}

.logo { font-size: 1.1rem; font-weight: 600; }
.tm { font-size: 0.6rem; vertical-align: top; }

.nav-links { display: flex; align-items: center; gap: 24px; }
.nav-links a { text-decoration: none; color: #333; font-size: 0.8rem; transition: opacity 0.2s; }
.nav-links a:hover { opacity: 0.7; }
.nav-links a.active { font-weight: 500; }

.btn-login {
    background: transparent;
    border: 1px solid #333;
    color: #333;
    padding: 3px 12px;
    border-radius: 980px;
    font-size: 0.7rem;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-login:hover {
    background: #333;
    color: #fff;
}

.hero { text-align: center; padding: 100px 20px; }
.hero-header { margin-bottom: 60px; }

h1 { font-size: 4.5rem; font-weight: 700; letter-spacing: -2px; margin: 0; line-height: 1.1; }
.eyebrow { color: var(--text-secondary); text-transform: uppercase; font-size: 0.8rem; letter-spacing: 1px; margin-bottom: 15px; font-weight: 600; }
.hero-subheader { color: var(--text-secondary); font-size: 1.6rem; max-width: 700px; margin: 25px auto 0; font-weight: 400; line-height: 1.4; }

.glass-container {
    background: #fff;
    border-radius: 28px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.04);
    padding: 40px;
    max-width: 580px;
    margin: 0 auto;
    border: 1px solid rgba(0,0,0,0.02);
}

.drop-zone {
    height: 280px;
    border: 1px solid var(--border);
    background-color: #fafafa;
    border-radius: 18px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    margin-bottom: 30px;
    position: relative;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    overflow: hidden;
}

.drop-zone:hover { border-color: var(--primary); background-color: #fff; }
.drop-zone--over { border-color: var(--primary); background-color: #f0f7ff; }
.drop-zone__input { display: none; }

.cloud-icon { width: 44px; height: 44px; color: var(--primary); margin-bottom: 20px; }
.drop-zone__prompt { font-size: 1.1rem; color: var(--text); font-weight: 500; margin-bottom: 8px; }
.or-separator { font-size: 0.9rem; color: var(--text-secondary); margin: 6px 0; }

.btn-choose {
    background: transparent;
    color: var(--link);
    border: none;
    font-size: 1rem;
    cursor: pointer;
    font-weight: 400;
}

.btn-choose:hover { text-decoration: underline; }

.btn-primary {
    background-color: var(--primary);
    color: #fff;
    border: none;
    padding: 16px 40px;
    border-radius: 980px;
    font-size: 1.1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-primary:hover { background-color: #0077ed; transform: scale(1.02); }

.apple-footer { background-color: var(--bg); color: var(--text-secondary); padding: 60px 20px; text-align: center; border-top: 1px solid var(--border); }
.footer-content { max-width: 980px; margin: 0 auto; font-size: 0.8rem; line-height: 1.6; }
.footer-content p { margin: 10px 0; }