* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html { scroll-behavior: smooth; }

body {
    font-family: 'Inter', sans-serif;
    background:
        linear-gradient(135deg, rgba(42,63,84,0.92) 0%, rgba(38,185,154,0.85) 100%),
        url('../images/bgregis.png') center/cover fixed;
    min-height: 100vh;
    padding: 40px 20px;
    overflow-y: auto;
}

/* ===== CARD ===== */
.container {
    max-width: 1100px;
    margin: 0 auto 40px auto;
    background: white;
    border-radius: 20px;
    padding: 44px 50px;
    box-shadow: 0 24px 64px rgba(0,0,0,0.15);
}

/* ===== HEADER ===== */
.reg-header {
    text-align: center;
    margin-bottom: 40px;
    padding-bottom: 28px;
    border-bottom: 2px solid #f1f5f9;
}

.reg-header .reg-icon {
    width: 72px;
    height: 72px;
    background: linear-gradient(135deg, #26b99a, #2a3f54);
    border-radius: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px;
    font-size: 30px;
    color: white;
    box-shadow: 0 8px 20px rgba(38,185,154,0.3);
}

.reg-header h1 {
    font-size: 28px;
    font-weight: 800;
    color: #2a3f54;
    margin-bottom: 8px;
}

.reg-header p {
    color: #64748b;
    font-size: 15px;
}

/* ===== GRID ===== */
.form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 32px;
}

.form-section {
    margin-bottom: 28px;
}

.section-full {
    margin-top: 8px;
}

/* ===== SECTION TITLE ===== */
.section-title {
    font-size: 15px;
    font-weight: 700;
    color: #2a3f54;
    margin-bottom: 18px;
    padding-bottom: 10px;
    border-bottom: 2px solid #f1f5f9;
    display: flex;
    align-items: center;
    gap: 8px;
}

.section-title i {
    color: #26b99a;
    font-size: 14px;
}

/* ===== FORM ELEMENTS ===== */
.form-group {
    margin-bottom: 18px;
}

label {
    display: block;
    font-weight: 600;
    color: #2a3f54;
    margin-bottom: 7px;
    font-size: 13px;
}

.required { color: #ef4444; }

input[type="text"],
input[type="email"],
input[type="password"],
input[type="tel"],
input[type="number"],
input[type="file"],
select,
textarea {
    width: 100%;
    padding: 11px 14px;
    border: 2px solid #e2e8f0;
    border-radius: 10px;
    font-size: 14px;
    font-family: 'Inter', sans-serif;
    color: #2a3f54;
    background: #ffffff;
    transition: border-color 0.2s, box-shadow 0.2s;
}

input::placeholder,
textarea::placeholder {
    color: #94a3b8;
}

input:focus,
select:focus,
textarea:focus {
    outline: none;
    border-color: #26b99a;
    box-shadow: 0 0 0 4px rgba(38,185,154,0.12);
}

textarea {
    min-height: 90px;
    resize: vertical;
}

.help-text {
    color: #94a3b8;
    font-size: 12px;
    margin-top: 5px;
}

/* ===== ALERT ===== */
.alert {
    background: #fef2f2;
    border-left: 4px solid #ef4444;
    padding: 14px 16px;
    border-radius: 10px;
    margin-bottom: 24px;
    color: #991b1b;
    font-size: 14px;
}

.alert ul {
    margin: 8px 0 0 18px;
}

/* ===== SUBMIT ===== */
.btn-submit {
    width: 100%;
    padding: 15px;
    background: linear-gradient(135deg, #26b99a, #1abb9c);
    color: white;
    border: none;
    border-radius: 12px;
    font-size: 15px;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.25s;
    box-shadow: 0 4px 16px rgba(38,185,154,0.35);
    letter-spacing: 0.3px;
}

.btn-submit:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(38,185,154,0.45);
    background: linear-gradient(135deg, #1abb9c, #17a589);
}

/* ===== LOGIN LINK ===== */
.login-link {
    text-align: center;
    margin-top: 20px;
    color: #64748b;
    font-size: 14px;
}

.login-link a {
    color: #26b99a;
    font-weight: 600;
    text-decoration: none;
    transition: color 0.2s;
}

.login-link a:hover { color: #1abb9c; }

/* ===== BACK LINK ===== */
.back-link {
    text-align: center;
    margin-top: 20px;
}

.back-link a {
    color: #94a3b8;
    font-size: 13px;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: color 0.2s;
}

.back-link a:hover { color: #26b99a; }

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
    .form-grid { grid-template-columns: 1fr; }
    .container { padding: 28px 20px; }
    .reg-header h1 { font-size: 22px; }
}