/* ============================
   RESET / BASE
   ============================ */

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: "Nunito", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
    background: #e6edf5;
    color: #374151;
}

/* ============================
   LAYOUT
   ============================ */

.container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 40px 24px;
}

/* ============================
   HEADER
   ============================ */

.header {
    text-align: center;
    margin-bottom: 36px;
}

.header h1 {
    margin: 0;
    font-size: 56px;
    font-family: "omnes-semicond", sans-serif;
    font-weight: 700;
    color: #021738;
}

.header p {
    margin-top: 10px;
    font-size: 18px;
    color: #628395;
}

/* ============================
   CARD
   ============================ */

.tool-card {
    background: #f5f3ef;
    border-radius: 14px;
    padding: 28px;
    box-shadow: 0 10px 28px rgba(0, 0, 0, 0.08);
}

.tool-card-large {
    max-width: 480px;
    margin: 0 auto;
    text-align: center;
}

/* ============================
   FILE DROP
   ============================ */

.file-drop {
    display: block;
    border: 2px dashed #c7d2e0;
    border-radius: 12px;
    padding: 34px 20px;
    cursor: pointer;
    margin-bottom: 24px;
    transition: border-color 0.15s ease, background 0.15s ease;
}

.file-drop:hover {
    border-color: #3b82f6;
    background: #f1f5fb;
}

.file-drop-inner strong {
    display: block;
    font-size: 16px;
    font-weight: 600;
    color: #1f2937;
}

.file-drop-inner span {
    display: block;
    margin-top: 6px;
    font-size: 13px;
    color: #6b7280;
}

/* ============================
   CHECKBOX
   ============================ */

.checkbox-row {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
    margin-bottom: 22px;
    font-size: 14px;
    color: #374151;
}

.checkbox-row label {
    cursor: pointer;
}

.checkbox-row input {
    margin-right: 8px;
}

.checkbox-row small {
    font-size: 12px;
    color: #6b7280;
}

/* ============================
   PRIMARY BUTTON
   ============================ */

button.primary {
    width: 100%;
    padding: 12px 16px;
    font-size: 15px;
    font-weight: 600;
    background: #3b82f6;
    color: white;
    border: none;
    border-radius: 8px;
    font-family: "Nunito", system-ui, sans-serif;
    cursor: pointer;
    transition: background 0.15s ease;
}

button.primary:hover {
    background: #2563eb;
}

/* ============================
   BACK LINK
   ============================ */

.back-link {
    display: inline-block;
    margin-top: 18px;
    font-size: 14px;
    color: #6b7280;
    text-decoration: none;
}

.back-link:hover {
    text-decoration: underline;
}

button.loading {
    opacity: 0.7;
    cursor: not-allowed;
}