* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: Arial, Helvetica, sans-serif;
}

html, body {
    height: 100%;
    overflow: hidden;
}

/* ================= BACKGROUND : DOODLE ================= */
body {
    background-color: #f8fafc;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140' viewBox='0 0 120 120'%3E%3Cg fill='none' stroke='%230f172a' stroke-width='1' stroke-opacity='0.07'%3E%3Crect x='10' y='10' width='20' height='30' rx='2'/%3E%3Cpath d='M15 40v-8h10v8'/%3E%3Cpath d='M60 15c-6 0-10 5-10 10 0 7 10 18 10 18s10-11 10-18c0-5-4-10-10-10z'/%3E%3Ccircle cx='60' cy='25' r='3'/%3E%3Crect x='80' y='20' width='25' height='15' rx='3'/%3E%3Cpath d='M80 35h25'/%3E%3Cpath d='M20 80l15-15 15 15v15H20z'/%3E%3Cpath d='M27 95v-8h6v8'/%3E%3C/g%3E%3C/svg%3E");
    background-repeat: repeat;
}

/* ================= HEADER ================= */
header {
    height: 64px;
    background: #ffffff;
    border-bottom: 1px solid #e5e7eb;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 24px;
}

.header-left {
    display: flex;
    align-items: center;
    gap: 14px;
}

.logo img {
    height: 38px;
    display: block;
}

.seller-badge {
    background: #FFF3D6;
    color: #9a6700;
    font-size: 13px;
    font-weight: 600;
    padding: 4px 10px;
    border-radius: 20px;
}

.username {
    font-size: 14px;
    color: #334155;
}

/* ================= MAIN ================= */
main {
    height: calc(100% - 64px);
    display: flex;
    align-items: center;
    justify-content: center;
}

.card {
    width: 440px;
    padding: 28px;
    border-radius: 14px;
    background: rgba(255, 255, 255, 0.96);
    box-shadow: 0 25px 50px rgba(0,0,0,0.18);
}

.card h2 {
    text-align: center;
    margin-bottom: 22px;
    font-size: 21px;
    color: #0f172a;
}

.form-group {
    margin-bottom: 20px;
}

label {
    display: block;
    margin-bottom: 8px;
    font-size: 14px;
    font-weight: 600;
    color: #334155;
}

input[type="file"] {
    width: 100%;
    padding: 12px;
    border: 2px dashed #cbd5e1;
    border-radius: 8px;
    background: #f8fafc;
    cursor: pointer;
}

input[type="file"]:hover {
    border-color: #FFA900;
}

button {
    width: 100%;
    padding: 14px;
    border: none;
    background: #FFA900;
    color: #1f2933;
    font-size: 16px;
    font-weight: bold;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s ease;
}

button:hover {
    background: #e59400;
    box-shadow: 0 8px 18px rgba(255,169,0,0.35);
}
.alert {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    padding: 14px;
    border-radius: 8px;
    margin-bottom: 16px;
    font-size: 14px;
}

.alert-icon {
    font-size: 18px;
    line-height: 1;
    margin-top: 2px;
}

.alert-success {
    background: #ecfdf5;
    color: #065f46;
    border: 1px solid #a7f3d0;
}

.alert-error {
    background: #fef2f2;
    color: #991b1b;
    border: 1px solid #fecaca;
}

.alert-error ul {
    margin: 0;
    padding-left: 18px;
}