:root {
    --kahmi: #1f4e3d;
    --kahmi-dark: #16382c;
    --kahmi-deep: #102c22;
    --kahmi-green: #2d6a4f;
    --kahmi-light: #eef6f1;
    --kahmi-soft: #f5f9f7;
    --kahmi-gold: #c9a227;
    --kahmi-gold-dark: #a98416;
    --kahmi-gold-light: #f8f1d8;
    --kahmi-border: #dfe8e3;
    --text-main: #26352e;
    --text-muted: #6b7670;
    --danger: #dc3545;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 18px;
    --shadow-sm: 0 4px 12px rgba(31, 78, 61, 0.06);
    --shadow-md: 0 10px 30px rgba(31, 78, 61, 0.10);
    --shadow-lg: 0 18px 45px rgba(31, 78, 61, 0.14);
}

html {
    scroll-behavior: smooth;
}

body {
    background: radial-gradient(circle at top right, rgba(201, 162, 39, 0.07), transparent 28%), linear-gradient(180deg, #f4f8f6 0%, #edf4f0 100%);
    font-family: 'Inter', 'Helvetica Neue', Arial, sans-serif;
    color: var(--text-main);
    min-height: 100vh;
}

.container {
    position: relative;
    z-index: 1;
}

.form-container {
    max-width: 940px;
    margin: 0 auto;
}

.card-custom {
    border: 1px solid rgba(31, 78, 61, 0.08);
    border-radius: var(--radius-lg);
    background: #ffffff;
    box-shadow: var(--shadow-lg);
    overflow: hidden;
}

.card-header-custom {
    position: relative;
    overflow: hidden;
    background: linear-gradient(135deg, var(--kahmi-deep) 0%, var(--kahmi) 48%, var(--kahmi-green) 100%);
    color: #ffffff;
    padding: 48px 28px 42px;
    text-align: center;
}

.card-header-custom::before {
    content: "";
    position: absolute;
    width: 280px;
    height: 280px;
    top: -160px;
    right: -90px;
    border-radius: 50%;
    background: rgba(201, 162, 39, 0.13);
}

.card-header-custom::after {
    content: "";
    position: absolute;
    width: 180px;
    height: 180px;
    bottom: -120px;
    left: -70px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.05);
}

.card-header-custom>* {
    position: relative;
    z-index: 2;
}

.card-header-custom img {
    width: 82px !important;
    height: 82px;
    object-fit: contain;
    padding: 7px;
    margin-bottom: 18px !important;
    filter: drop-shadow(0 7px 15px rgba(0, 0, 0, 0.20));
}

.card-header-custom h2 {
    font-weight: 700;
    letter-spacing: -0.025em;
    margin-bottom: 10px !important;
}

.card-header-custom p {
    color: rgba(255, 255, 255, 0.86) !important;
    max-width: 720px;
    margin: 0 auto;
    line-height: 1.7;
}

.card-header-custom h2::after {
    content: "";
    display: block;
    width: 52px;
    height: 3px;
    margin: 14px auto 0;
    border-radius: 99px;
    background: var(--kahmi-gold);
}

.card-body {
    background: #ffffff;
}

.section-title {
    position: relative;
    color: var(--kahmi);
    font-weight: 700;
    border-bottom: 1px solid var(--kahmi-border);
    padding-bottom: 12px;
    margin-top: 42px;
    margin-bottom: 26px;
    font-size: 1.08rem;
    letter-spacing: -0.01em;
}

.section-title::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: -1px;
    width: 72px;
    height: 3px;
    border-radius: 99px;
    background: linear-gradient(90deg, var(--kahmi), var(--kahmi-gold));
}

.form-label {
    color: #35433c;
    font-weight: 600;
    font-size: 0.92rem;
    margin-bottom: 8px;
}

.form-label .text-muted {
    font-weight: 400;
    color: var(--text-muted) !important;
}

.text-danger {
    color: #c0392b !important;
}

.form-control,
.form-select {
    min-height: 48px;
    padding: 0.72rem 0.95rem;
    border-radius: var(--radius-sm);
    border: 1px solid #cedbd4;
    background-color: #ffffff;
    color: var(--text-main);
    font-size: 0.94rem;
    transition: border-color 0.2s ease, box-shadow 0.2s ease, background-color 0.2s ease;
}

textarea.form-control {
    min-height: auto;
    line-height: 1.6;
}

.form-control:hover,
.form-select:hover {
    border-color: #9eb9ab;
}

.form-control:focus,
.form-select:focus {
    border-color: var(--kahmi);
    box-shadow: 0 0 0 0.18rem rgba(31, 78, 61, 0.10), 0 3px 10px rgba(31, 78, 61, 0.04);
    background-color: #ffffff;
}

.form-control.is-valid,
.form-select.is-valid {
    border-color: var(--kahmi);
}

.form-control.is-invalid,
.form-select.is-invalid {
    border-color: var(--danger);
}

::placeholder {
    color: rgba(108, 117, 125, 0.50) !important;
    opacity: 1;
}

/* FOTO UPLOAD & HOVER/ACTIVE MENJADI MERAH */
.card-body .bg-light {
    background-color: var(--kahmi-soft) !important;
    border-color: var(--kahmi-border) !important;
}

#customFile {
    background-color: #ffffff;
}

.form-control[type="file"]::file-selector-button {
    background-color: var(--kahmi);
    color: #ffffff;
    border: none;
    padding: 0.55rem 1rem;
    margin-right: 12px;
    border-radius: 6px;
    font-weight: 600;
    transition: all 0.2s ease;
}

.form-control[type="file"]::file-selector-button:hover,
.form-control[type="file"]::file-selector-button:active,
.form-control[type="file"]:hover::file-selector-button,
.form-control[type="file"]:active::file-selector-button,
.form-control[type="file"]::-webkit-file-upload-button:hover,
.form-control[type="file"]::-webkit-file-upload-button:active,
.form-control[type="file"]:hover::-webkit-file-upload-button,
.form-control[type="file"]:active::-webkit-file-upload-button {
    color: var(--kahmi);
}

#img-preview {
    transition: transform 0.25s ease;
}

#img-preview:hover {
    transform: scale(1.015);
}

/* SELECT2 */
.select2-container--bootstrap-5 {
    width: 100% !important;
}

.select2-container--bootstrap-5 .select2-selection {
    min-height: 48px !important;
    padding: 0.45rem 0.85rem !important;
    border-radius: var(--radius-sm) !important;
    border: 1px solid #cedbd4 !important;
    background-color: #ffffff;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.select2-container--bootstrap-5.select2-container--focus .select2-selection,
.select2-container--bootstrap-5.select2-container--open .select2-selection {
    border-color: var(--kahmi) !important;
    box-shadow: 0 0 0 0.18rem rgba(31, 78, 61, 0.10) !important;
}

.select2-container--bootstrap-5 .select2-selection--single .select2-selection__rendered {
    padding-left: 0 !important;
    color: var(--text-main) !important;
    line-height: 38px !important;
}

.select2-container--bootstrap-5 .select2-selection--single .select2-selection__placeholder {
    color: rgba(108, 117, 125, 0.50) !important;
}

.select2-container--bootstrap-5 .select2-selection--single .select2-selection__arrow {
    height: 100% !important;
    right: 8px !important;
}

.select2-dropdown {
    border: 1px solid var(--kahmi-border) !important;
    border-radius: 0 0 var(--radius-sm) var(--radius-sm) !important;
    box-shadow: var(--shadow-md);
    overflow: hidden;
}

.select2-container--bootstrap-5 .select2-results__option--highlighted {
    background-color: var(--kahmi) !important;
    color: #ffffff !important;
}

.select2-container--bootstrap-5 .select2-results__option--selected {
    background-color: var(--kahmi-light) !important;
    color: var(--kahmi) !important;
}

/* BLOK PERKADERAN HMI */
.card-body .bg-light.p-3.rounded.border.mb-3 {
    position: relative;
    background: linear-gradient(135deg, #f8fbf9 0%, #f2f7f4 100%) !important;
    border: 1px solid var(--kahmi-border) !important;
    border-left: 4px solid var(--kahmi) !important;
    border-radius: 10px !important;
    box-shadow: 0 4px 14px rgba(31, 78, 61, 0.04);
    transition: all 0.2s ease;
}

.card-body .bg-light.p-3.rounded.border.mb-3:hover {
    border-left-color: var(--kahmi-gold) !important;
    box-shadow: var(--shadow-sm);
    transform: translateY(-1px);
}

.card-body .bg-light.p-3.rounded.border.mb-3 .form-label.fw-bold {
    color: var(--kahmi) !important;
}

.card-body .bg-light.p-3.rounded.border.mb-3 .border-bottom {
    border-color: var(--kahmi-border) !important;
}

.text-muted {
    color: var(--text-muted) !important;
}

/* ALERT */
.alert-custom {
    border: none !important;
    border-radius: 0 !important;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
    padding: 16px 20px;
    position: relative;
    overflow: hidden;
    display: none;
    margin-bottom: 0;
}

.alert-custom::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 5px;
}

.alert-success.alert-custom {
    background-color: #edf8f2;
    color: #14532d;
}

.alert-success.alert-custom::before {
    background: linear-gradient(180deg, var(--kahmi), var(--kahmi-gold));
}

.alert-success.alert-custom .text-success {
    color: var(--kahmi) !important;
}

.alert-danger.alert-custom {
    background-color: #fdf1f1;
    color: #842029;
}

.alert-danger.alert-custom::before {
    background-color: #dc3545;
}

.alert-danger.alert-custom .text-danger {
    color: #b02a37 !important;
}

.alert-danger ul,
.alert-danger ul li {
    margin-bottom: 0;
}

.alert-danger ul {
    padding-left: 20px;
}

.alert-danger ul li {
    font-size: 14px;
}

.invalid-feedback {
    font-size: 0.80rem;
    margin-top: 6px;
}

.was-validated .form-control:invalid,
.was-validated .form-select:invalid {
    border-color: #dc3545;
}

.was-validated .form-control:valid,
.was-validated .form-select:valid {
    border-color: rgba(31, 78, 61, 0.45);
}

/* BUTTON SUBMIT */
.btn-submit {
    position: relative;
    overflow: hidden;
    background: linear-gradient(135deg, var(--kahmi), var(--kahmi-green));
    border-color: var(--kahmi);
    padding: 13px 22px;
    font-size: 1rem;
    font-weight: 700;
    letter-spacing: 0.01em;
    border-radius: 9px;
    transition: all 0.25s ease;
}

.btn-submit::before {
    content: "";
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.16), transparent);
    transition: left 0.5s ease;
}

.btn-submit:hover::before {
    left: 100%;
}

.btn-submit:hover {
    background: linear-gradient(135deg, var(--kahmi-dark), var(--kahmi));
    border-color: var(--kahmi-dark);
    transform: translateY(-2px);
    box-shadow: 0 8px 22px rgba(31, 78, 61, 0.25) !important;
}

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

.btn-submit i {
    color: var(--kahmi-gold);
}

.card-footer {
    background: #ffffff !important;
    border-top: 1px solid var(--kahmi-border) !important;
}

.card-footer p {
    color: var(--text-muted) !important;
}

.alert-custom .btn-close {
    opacity: 0.6;
}

.alert-custom .btn-close:hover {
    opacity: 1;
}

button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
    outline: 2px solid rgba(201, 162, 39, 0.65);
    outline-offset: 2px;
}

@media (max-width: 768px) {
    .container {
        padding-left: 12px;
        padding-right: 12px;
    }

    .card-header-custom {
        padding: 38px 20px 34px;
    }

    .card-header-custom img {
        width: 72px !important;
        height: 72px;
    }

    .card-header-custom h2 {
        font-size: 1.45rem;
    }

    .card-header-custom p {
        font-size: 14px !important;
        line-height: 1.6;
    }

    .card-body {
        padding: 24px 18px !important;
    }

    .section-title {
        margin-top: 32px;
        font-size: 1rem;
    }

    .card-footer {
        padding: 20px 18px 30px !important;
    }

    .btn-submit {
        font-size: 0.95rem;
    }
}

@media (max-width: 576px) {
    body {
        background: #f3f7f5;
    }

    .form-container {
        width: 100%;
    }

    .card-custom {
        border-radius: 12px;
    }

    .card-header-custom {
        padding: 32px 16px 30px;
    }

    .card-header-custom h2 {
        font-size: 1.3rem;
    }

    .card-header-custom p {
        font-size: 13px !important;
    }

    .card-body {
        padding: 20px 14px !important;
    }

    .section-title {
        margin-bottom: 22px;
    }

    .form-label {
        font-size: 0.88rem;
    }

    .form-control,
    .form-select {
        font-size: 0.9rem;
    }

    .card-body .bg-light.p-3.rounded.border.mb-3 {
        padding: 14px !important;
    }
}