* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: "Inter", "Segoe UI", sans-serif;
}

body {
    min-height: 100vh;
    display: grid;
    place-items: center;
    padding: 20px;
    color: #f8fafc;
    background: linear-gradient(135deg, #0f172a, #1d4ed8);
}

.app {
    width: min(700px, 100%);
    background: rgba(15, 23, 42, 0.75);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 18px;
    padding: 28px;
    backdrop-filter: blur(10px);
    box-shadow: 0 20px 45px rgba(2, 6, 23, 0.45);
}

.hero {
    text-align: center;
    margin-bottom: 28px;
}

.hero h1 {
    font-size: clamp(2rem, 4vw, 2.8rem);
    margin-bottom: 8px;
}

.subtitle {
    color: #cbd5e1;
}

.quote-card {
    background: rgba(30, 41, 59, 0.8);
    border: 1px solid rgba(148, 163, 184, 0.3);
    border-radius: 14px;
    padding: 24px;
    min-height: 170px;
    display: grid;
    align-content: center;
    gap: 14px;
}

#quote-text {
    font-size: clamp(1.15rem, 2.8vw, 1.6rem);
    line-height: 1.45;
    text-align: center;
}

#quote-author {
    color: #93c5fd;
    text-align: right;
    font-weight: 600;
}

.controls {
    margin-top: 22px;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 12px;
}

.btn {
    border: none;
    border-radius: 10px;
    padding: 12px 22px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    color: #0f172a;
    background: #facc15;
    transition: transform 0.15s ease, filter 0.2s ease;
}

.btn:hover {
    transform: translateY(-2px);
    filter: brightness(1.08);
}

.btn:active {
    transform: translateY(0);
}

.btn-secondary {
    background: #e2e8f0;
}

.status {
    min-height: 24px;
    margin-top: 16px;
    text-align: center;
    color: #bfdbfe;
}