/* tanso.day - Frutiger-Aero Bubble Experience */
* { margin: 0; padding: 0; box-sizing: border-box; }
:root {
    --sky-mist: #E8F4FF;
    --peach-cream: #FFF8F0;
    --mint: #A8E8C8;
    --baby-blue: #A8D8F8;
    --rose-quartz: #F8C8D8;
    --lemon-cream: #F8E8A8;
    --glass-surface: rgba(255,255,255,0.6);
    --text-primary: #2A3848;
    --text-body: #3A4858;
    --text-secondary: #6A8898;
    --shadow: rgba(80,120,160,0.08);
}
body {
    background: linear-gradient(180deg, var(--sky-mist) 0%, var(--peach-cream) 100%);
    min-height: 100vh;
    color: var(--text-body);
    font-family: 'Nunito', sans-serif;
    font-size: 1.0625rem;
    line-height: 1.75;
    font-weight: 400;
    overflow-x: hidden;
    position: relative;
}

/* Floating Bubbles */
.bubbles {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 0;
}
.bubble {
    position: absolute;
    border-radius: 50%;
    opacity: 0.25;
    animation: bubbleFloat linear infinite;
    bottom: -100px;
}
.bubble-green { background: radial-gradient(circle at 30% 30%, rgba(168,232,200,0.6), rgba(168,232,200,0.1)); }
.bubble-blue { background: radial-gradient(circle at 30% 30%, rgba(168,216,248,0.6), rgba(168,216,248,0.1)); }
.bubble-pink { background: radial-gradient(circle at 30% 30%, rgba(248,200,216,0.6), rgba(248,200,216,0.1)); }
.bubble-yellow { background: radial-gradient(circle at 30% 30%, rgba(248,232,168,0.6), rgba(248,232,168,0.1)); }
@keyframes bubbleFloat {
    0% { transform: translateY(0) translateX(0); }
    25% { transform: translateY(-25vh) translateX(10px); }
    50% { transform: translateY(-50vh) translateX(-8px); }
    75% { transform: translateY(-75vh) translateX(6px); }
    100% { transform: translateY(-110vh) translateX(0); }
}

/* Hero */
#hero {
    min-height: 60vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    z-index: 1;
    padding: 4rem 2rem;
}
.hero-card {
    text-align: center;
    padding: 3rem 4rem;
}
.hero-title {
    font-family: 'Quicksand', sans-serif;
    font-size: clamp(2rem, 4vw, 3.5rem);
    font-weight: 600;
    color: var(--text-primary);
}
.hero-meta {
    font-family: 'DM Mono', monospace;
    font-size: 0.9rem;
    letter-spacing: 0.03em;
    color: var(--text-secondary);
    margin-top: 0.5rem;
}

/* Glass Cards */
.glass-card {
    background: var(--glass-surface);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid rgba(255,255,255,0.4);
    border-radius: 20px;
    box-shadow: 0 8px 32px var(--shadow);
    position: relative;
    overflow: hidden;
}
.glass-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 50%;
    background: linear-gradient(180deg, rgba(255,255,255,0.3), transparent);
    pointer-events: none;
    border-radius: 20px 20px 0 0;
}

/* Content */
#content {
    max-width: 720px;
    margin: 0 auto;
    padding: 0 2rem 3rem;
    position: relative;
    z-index: 1;
    display: flex;
    flex-direction: column;
    gap: 2rem;
}
#content .glass-card {
    padding: 2.5rem;
}
.section-title {
    font-family: 'Quicksand', sans-serif;
    font-size: clamp(1.5rem, 3vw, 2rem);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1rem;
}
.body-text {
    font-size: 1.0625rem;
    color: var(--text-body);
    margin-bottom: 0.75rem;
}
.annotation {
    font-family: 'DM Mono', monospace;
    font-size: 0.8rem;
    letter-spacing: 0.03em;
    color: var(--text-secondary);
    display: block;
    margin-top: 1rem;
}

/* Section animation - blur focus */
.section {
    opacity: 0;
    filter: blur(6px);
    transform: translateY(15px);
    transition: opacity 0.5s ease, filter 0.5s ease, transform 0.5s ease;
}
.section.visible {
    opacity: 1;
    filter: blur(0);
    transform: translateY(0);
}

/* Footer */
#footer {
    text-align: center;
    padding: 3rem 2rem;
    position: relative;
    z-index: 1;
}
.footer-text {
    font-family: 'DM Mono', monospace;
    font-size: 0.8rem;
    color: var(--text-secondary);
}

/* Responsive */
@media (max-width: 600px) {
    .hero-card { padding: 2rem; }
    #content .glass-card { padding: 1.5rem; }
}