/* ===== RESET ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
}

body {
    font-family: Arial, sans-serif;
    background: #fafafa;
    color: #222;
    line-height: 1.6;
    padding-bottom: 80px;
}

/* ===== HEADER ===== */
.app-header {
    background: linear-gradient(135deg, #1e88e5, #26c6da);
    padding: 18px;
    text-align: center;
    color: white;
    font-weight: bold;
    font-size: 22px;
}

/* ===== LAYOUT ===== */
.app-container {
    padding: 20px;
    max-width: 600px;
    margin: auto;
}

/* ===== HERO ===== */
.hero {
    background: white;
    padding: 25px;
    border-radius: 14px;
    text-align: center;
    box-shadow: 0 3px 12px rgba(0,0,0,0.08);
    margin-bottom: 20px;
}

.hero h2 {
    font-size: 26px;
    margin-bottom: 10px;
}

/* ===== CARD ===== */
.card {
    background: white;
    padding: 20px;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.07);
    margin-bottom: 20px;
}

/* ===== BUTTONS ===== */
.primary-btn {
    display: inline-block;
    padding: 12px 22px;
    margin-top: 10px;
    background: linear-gradient(135deg, #43a047, #66bb6a);
    color: white;
    border: none;
    border-radius: 10px;
    font-size: 17px;
    cursor: pointer;
    transition: 0.2s;
}

.primary-btn:hover {
    opacity: 0.9;
}

/* ===== FOOTER ===== */
.app-footer {
    text-align: center;
    padding: 15px;
    color: #666;
    font-size: 14px;
    position: fixed;
    bottom: 0;
    width: 100%;
    background: #f2f2f2;
}