/* ========================================================================
   MY DIGITAL DIARY — PROFESSIONAL FORM SYSTEM
   Shared visual language for page forms, filter bars, CRUD cards, modals
   and authentication screens.

   Designed to work with existing Blade/Tailwind markup without requiring
   every form to be rewritten. Existing brand variables are reused when
   present and safe fallbacks are provided.
   ======================================================================== */

:root {
    --form-brand: var(--brand-1, #0C3B2E);
    --form-brand-hover: var(--brand-2, #6D9773);
    --form-brand-soft: var(--brand-1-tint-10, rgba(12, 59, 46, .08));
    --form-text: #172033;
    --form-text-soft: #475569;
    --form-muted: #718096;
    --form-placeholder: #9aa6b2;
    --form-surface: #ffffff;
    --form-surface-soft: #f8fafc;
    --form-surface-muted: #f1f5f9;
    --form-border: #dce3ea;
    --form-border-hover: #b9c5d1;
    --form-danger: #dc2626;
    --form-danger-soft: rgba(220, 38, 38, .10);
    --form-success: #15803d;
    --form-warning: #b45309;
    --form-radius: 12px;
    --form-radius-lg: 16px;
    --form-height: 46px;
    --form-shadow-xs: 0 1px 2px rgba(15, 23, 42, .04);
    --form-shadow-sm: 0 8px 20px -14px rgba(15, 23, 42, .30);
    --form-shadow-focus: 0 0 0 4px rgba(109, 151, 115, .18);
    --form-ease: cubic-bezier(.16, 1, .3, 1);
}

/* ------------------------------------------------------------------------
   FOUNDATION / SAFETY
   ------------------------------------------------------------------------ */

form,
form *,
.form-card,
.form-section,
.form-grid,
.form-row,
.field,
.form-field,
.input-group {
    box-sizing: border-box;
    min-width: 0;
}

form {
    max-width: 100%;
}

/* Consistent spacing without forcing old forms into a new layout. */
.form-stack,
.form-fields {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    width: 100%;
}

.form-grid,
.form-row {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1rem 1.125rem;
    width: 100%;
}

.form-grid-3 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.form-grid-4 {
    grid-template-columns: repeat(4, minmax(0, 1fr));
}

.form-field,
.field {
    display: flex;
    flex-direction: column;
    gap: .42rem;
    width: 100%;
}

.form-field-full,
.field-full,
.col-span-full {
    grid-column: 1 / -1;
}

/* ------------------------------------------------------------------------
   FORM CARDS / SECTIONS
   ------------------------------------------------------------------------ */

.form-card,
.form-panel,
.form-section {
    width: 100%;
    background: var(--form-surface);
    border: 1px solid #e7ecf1;
    border-radius: var(--form-radius-lg);
    box-shadow: 0 12px 34px -26px rgba(15, 23, 42, .30);
}

.form-card,
.form-panel {
    padding: clamp(1rem, 2.5vw, 1.5rem);
}

.form-section {
    padding: clamp(.95rem, 2vw, 1.25rem);
}

.form-section + .form-section {
    margin-top: 1rem;
}

.form-section-title,
.form-title {
    margin: 0;
    color: var(--form-text);
    font-size: 1rem;
    font-weight: 750;
    line-height: 1.35;
    letter-spacing: -.01em;
}

.form-section-description,
.form-description {
    margin: .25rem 0 0;
    color: var(--form-muted);
    font-size: .8125rem;
    line-height: 1.55;
}

/* ------------------------------------------------------------------------
   LABELS / LEGENDS
   ------------------------------------------------------------------------ */

form label,
.form-label,
fieldset > legend {
    display: inline-flex;
    align-items: center;
    gap: .3rem;
    max-width: 100%;
    color: #334155;
    font-size: .8125rem;
    font-weight: 650;
    line-height: 1.35;
    letter-spacing: .006em;
}

form label .required,
.form-label .required,
.required-marker {
    color: var(--form-danger);
    font-weight: 800;
}

fieldset {
    min-width: 0;
    margin: 0;
    padding: 0;
    border: 0;
}

fieldset.form-fieldset {
    padding: 1rem;
    border: 1px solid var(--form-border);
    border-radius: var(--form-radius-lg);
    background: var(--form-surface);
}

fieldset.form-fieldset > legend {
    padding-inline: .45rem;
}

/* ------------------------------------------------------------------------
   TEXT-LIKE CONTROLS
   ------------------------------------------------------------------------ */

:where(
    form input:not([type="checkbox"]):not([type="radio"]):not([type="hidden"]):not([type="button"]):not([type="submit"]):not([type="reset"]):not([type="color"]):not([type="range"]),
    form select,
    form textarea,
    .form-control,
    .pm-input
) {
    display: block;
    width: 100%;
    min-width: 0;
    max-width: 100%;
    min-height: var(--form-height);
    margin: 0;
    padding: .70rem .875rem;
    border: 1px solid var(--form-border);
    border-radius: var(--form-radius);
    background: var(--form-surface);
    color: var(--form-text);
    font: inherit;
    font-size: .9rem;
    line-height: 1.45;
    box-shadow: var(--form-shadow-xs);
    transition:
        border-color .18s var(--form-ease),
        box-shadow .18s var(--form-ease),
        background-color .18s var(--form-ease),
        color .18s var(--form-ease);
}

:where(
    form input:not([type="checkbox"]):not([type="radio"]):not([type="hidden"]):not([type="button"]):not([type="submit"]):not([type="reset"]):not([type="color"]):not([type="range"]),
    form select,
    form textarea,
    .form-control,
    .pm-input
)::placeholder {
    color: var(--form-placeholder);
    opacity: 1;
}

:where(
    form input:not([type="checkbox"]):not([type="radio"]):not([type="hidden"]):not([type="button"]):not([type="submit"]):not([type="reset"]):not([type="color"]):not([type="range"]),
    form select,
    form textarea,
    .form-control,
    .pm-input
):hover:not(:disabled):not(:focus) {
    border-color: var(--form-border-hover);
}

:where(
    form input:not([type="checkbox"]):not([type="radio"]):not([type="hidden"]):not([type="button"]):not([type="submit"]):not([type="reset"]):not([type="color"]):not([type="range"]),
    form select,
    form textarea,
    .form-control,
    .pm-input
):focus,
:where(
    form input:not([type="checkbox"]):not([type="radio"]):not([type="hidden"]):not([type="button"]):not([type="submit"]):not([type="reset"]):not([type="color"]):not([type="range"]),
    form select,
    form textarea,
    .form-control,
    .pm-input
):focus-visible {
    outline: none;
    border-color: var(--form-brand-hover);
    box-shadow: var(--form-shadow-focus);
}

:where(form input, form select, form textarea, .form-control, .pm-input):disabled,
:where(form input, form select, form textarea, .form-control, .pm-input)[readonly] {
    background: var(--form-surface-muted);
    border-color: #e2e8f0;
    color: #64748b;
    box-shadow: none;
}

:where(form input, form select, form textarea):disabled {
    cursor: not-allowed;
    opacity: .86;
}

:where(form input, form select, form textarea)[readonly] {
    cursor: default;
}

/* Validation */
:where(form input, form select, form textarea, .form-control, .pm-input)[aria-invalid="true"],
:where(form input, form select, form textarea, .form-control, .pm-input).is-invalid,
.was-validated :where(input, select, textarea):invalid {
    border-color: var(--form-danger);
    background-color: #fffdfd;
}

:where(form input, form select, form textarea, .form-control, .pm-input)[aria-invalid="true"]:focus,
:where(form input, form select, form textarea, .form-control, .pm-input).is-invalid:focus,
.was-validated :where(input, select, textarea):invalid:focus {
    box-shadow: 0 0 0 4px var(--form-danger-soft);
}

:where(form input, form select, form textarea, .form-control, .pm-input).is-valid {
    border-color: #65a30d;
}

/* ------------------------------------------------------------------------
   TEXTAREA / SELECT / DATE / SEARCH
   ------------------------------------------------------------------------ */

form textarea,
textarea.form-control {
    min-height: 112px;
    resize: vertical;
    padding-top: .78rem;
}

form textarea.rows-sm {
    min-height: 82px;
}

form textarea.rows-lg {
    min-height: 160px;
}

form select,
select.form-control {
    appearance: none;
    -webkit-appearance: none;
    padding-right: 2.6rem;
    background-image:
        linear-gradient(45deg, transparent 50%, #64748b 50%),
        linear-gradient(135deg, #64748b 50%, transparent 50%);
    background-position:
        calc(100% - 18px) calc(50% - 2px),
        calc(100% - 13px) calc(50% - 2px);
    background-size: 5px 5px, 5px 5px;
    background-repeat: no-repeat;
}

form select[multiple],
select.form-control[multiple] {
    min-height: 130px;
    padding-right: .875rem;
    background-image: none;
}

form input[type="date"],
form input[type="time"],
form input[type="datetime-local"],
form input[type="month"],
form input[type="week"] {
    color-scheme: light;
}

form input[type="search"] {
    -webkit-appearance: none;
    appearance: none;
}

form input[type="search"]::-webkit-search-cancel-button {
    cursor: pointer;
}

/* ------------------------------------------------------------------------
   FILE UPLOAD
   ------------------------------------------------------------------------ */

form input[type="file"],
input.form-control[type="file"] {
    min-height: var(--form-height);
    padding: .32rem .4rem;
    overflow: hidden;
    cursor: pointer;
}

form input[type="file"]::file-selector-button,
input.form-control[type="file"]::file-selector-button {
    min-height: 36px;
    margin-right: .7rem;
    padding: .48rem .8rem;
    border: 0;
    border-radius: 9px;
    background: var(--form-brand-soft);
    color: var(--form-brand);
    font: inherit;
    font-size: .8125rem;
    font-weight: 700;
    cursor: pointer;
    transition: background-color .18s var(--form-ease), color .18s var(--form-ease);
}

form input[type="file"]::file-selector-button:hover,
input.form-control[type="file"]::file-selector-button:hover {
    background: var(--form-brand);
    color: #fff;
}

/* ------------------------------------------------------------------------
   CHECKBOXES / RADIOS / SWITCHES
   ------------------------------------------------------------------------ */

form input[type="checkbox"],
form input[type="radio"],
.form-check-input {
    width: 1.05rem;
    height: 1.05rem;
    flex: 0 0 1.05rem;
    margin: 0;
    accent-color: var(--form-brand);
    cursor: pointer;
}

.form-check,
.checkbox-row,
.radio-row {
    display: flex;
    align-items: flex-start;
    gap: .55rem;
    min-width: 0;
}

.form-check label,
.checkbox-row label,
.radio-row label {
    margin: 0;
    font-weight: 500;
    line-height: 1.45;
    cursor: pointer;
}

.form-switch {
    display: inline-flex;
    align-items: center;
    gap: .65rem;
}

.form-switch input[type="checkbox"] {
    position: relative;
    appearance: none;
    -webkit-appearance: none;
    width: 2.6rem;
    height: 1.45rem;
    flex: 0 0 2.6rem;
    border: 1px solid #cbd5e1;
    border-radius: 999px;
    background: #cbd5e1;
    cursor: pointer;
    transition: background-color .18s ease, border-color .18s ease;
}

.form-switch input[type="checkbox"]::after {
    content: "";
    position: absolute;
    top: 2px;
    left: 2px;
    width: calc(1.45rem - 6px);
    height: calc(1.45rem - 6px);
    border-radius: 50%;
    background: #fff;
    box-shadow: 0 1px 3px rgba(15, 23, 42, .28);
    transition: transform .18s var(--form-ease);
}

.form-switch input[type="checkbox"]:checked {
    border-color: var(--form-brand);
    background: var(--form-brand);
}

.form-switch input[type="checkbox"]:checked::after {
    transform: translateX(1.14rem);
}

/* ------------------------------------------------------------------------
   INPUT GROUPS / PREFIX / SUFFIX
   ------------------------------------------------------------------------ */

.input-group {
    display: flex;
    align-items: stretch;
    width: 100%;
}

.input-group > :where(input, select, textarea, .form-control) {
    flex: 1 1 auto;
    border-radius: 0;
}

.input-group > :first-child {
    border-top-left-radius: var(--form-radius);
    border-bottom-left-radius: var(--form-radius);
}

.input-group > :last-child {
    border-top-right-radius: var(--form-radius);
    border-bottom-right-radius: var(--form-radius);
}

.input-group-text,
.input-prefix,
.input-suffix {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex: 0 0 auto;
    min-height: var(--form-height);
    padding: .65rem .8rem;
    border: 1px solid var(--form-border);
    background: var(--form-surface-soft);
    color: var(--form-text-soft);
    font-size: .8125rem;
    font-weight: 600;
    white-space: nowrap;
}

.input-group > * + * {
    margin-left: -1px;
}

/* ------------------------------------------------------------------------
   HINTS / ERRORS / SUCCESS
   ------------------------------------------------------------------------ */

.form-hint,
.field-hint,
.help-text,
.pm-field-hint {
    margin: .05rem 0 0;
    color: var(--form-muted);
    font-size: .75rem;
    line-height: 1.5;
}

.form-error,
.field-error,
.invalid-feedback,
.pm-field-error {
    margin: .05rem 0 0;
    color: var(--form-danger);
    font-size: .75rem;
    font-weight: 550;
    line-height: 1.5;
}

.valid-feedback,
.form-success {
    margin: .05rem 0 0;
    color: var(--form-success);
    font-size: .75rem;
    font-weight: 550;
    line-height: 1.5;
}

/* ------------------------------------------------------------------------
   ACTIONS / BUTTONS
   ------------------------------------------------------------------------ */

.form-actions,
.form-footer {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    flex-wrap: wrap;
    gap: .625rem;
    width: 100%;
    margin-top: 1.15rem;
    padding-top: 1rem;
    border-top: 1px solid #edf1f5;
}

:where(form button, form input[type="submit"], form input[type="button"], form input[type="reset"]).btn,
form .btn-form,
form .btn-primary,
form .btn-secondary,
form .btn-danger,
form .btn-light {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: .45rem;
    min-height: 42px;
    max-width: 100%;
    padding: .62rem 1rem;
    border: 1px solid transparent;
    border-radius: 11px;
    font: inherit;
    font-size: .85rem;
    font-weight: 700;
    line-height: 1.2;
    text-decoration: none;
    white-space: nowrap;
    cursor: pointer;
    transition:
        transform .15s var(--form-ease),
        box-shadow .18s var(--form-ease),
        background-color .18s var(--form-ease),
        border-color .18s var(--form-ease),
        color .18s var(--form-ease);
}

form .btn-primary,
form .btn-form-primary {
    background: var(--form-brand);
    border-color: var(--form-brand);
    color: #fff;
    box-shadow: 0 8px 18px -10px rgba(12, 59, 46, .55);
}

form .btn-primary:hover,
form .btn-form-primary:hover {
    background: var(--form-brand-hover);
    border-color: var(--form-brand-hover);
    transform: translateY(-1px);
}

form .btn-secondary,
form .btn-light,
form .btn-form-secondary {
    background: #fff;
    border-color: var(--form-border);
    color: #334155;
}

form .btn-secondary:hover,
form .btn-light:hover,
form .btn-form-secondary:hover {
    background: var(--form-surface-soft);
    border-color: var(--form-border-hover);
}

form .btn-danger,
form .btn-form-danger {
    background: #fff;
    border-color: #fecaca;
    color: #b91c1c;
}

form .btn-danger:hover,
form .btn-form-danger:hover {
    background: #fef2f2;
    border-color: #fca5a5;
}

:where(form button, form input[type="submit"], form input[type="button"], form input[type="reset"]):disabled {
    cursor: not-allowed !important;
    opacity: .56;
    transform: none !important;
    box-shadow: none !important;
}

/* ------------------------------------------------------------------------
   FILTER / SEARCH FORMS
   ------------------------------------------------------------------------ */

.filter-form,
.search-form,
.toolbar-form {
    display: flex;
    align-items: flex-end;
    flex-wrap: wrap;
    gap: .75rem;
    width: 100%;
    padding: .85rem;
    border: 1px solid #e7ecf1;
    border-radius: var(--form-radius-lg);
    background: #fff;
}

.filter-form > *,
.search-form > *,
.toolbar-form > * {
    min-width: 0;
}

.filter-form .form-field,
.search-form .form-field,
.toolbar-form .form-field {
    flex: 1 1 180px;
}

/* ------------------------------------------------------------------------
   AUTOFILL / ACCESSIBILITY
   ------------------------------------------------------------------------ */

input:-webkit-autofill,
input:-webkit-autofill:hover,
input:-webkit-autofill:focus,
textarea:-webkit-autofill,
select:-webkit-autofill {
    -webkit-text-fill-color: var(--form-text);
    -webkit-box-shadow: 0 0 0 1000px #fff inset;
    transition: background-color 9999s ease-out 0s;
}

form :focus-visible {
    scroll-margin: 6rem;
}

/* ------------------------------------------------------------------------
   RESPONSIVE
   ------------------------------------------------------------------------ */

@media (max-width: 900px) {
    .form-grid-3,
    .form-grid-4 {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 640px) {
    :root {
        --form-height: 44px;
        --form-radius: 11px;
    }

    .form-grid,
    .form-row,
    .form-grid-3,
    .form-grid-4 {
        grid-template-columns: minmax(0, 1fr);
        gap: .85rem;
    }

    .form-card,
    .form-panel,
    .form-section {
        border-radius: 14px;
    }

    .form-card,
    .form-panel {
        padding: 1rem;
    }

    :where(
        form input:not([type="checkbox"]):not([type="radio"]):not([type="hidden"]):not([type="button"]):not([type="submit"]):not([type="reset"]):not([type="color"]):not([type="range"]),
        form select,
        form textarea,
        .form-control,
        .pm-input
    ) {
        font-size: 16px; /* prevents iOS Safari from zooming on focus */
    }

    form textarea,
    textarea.form-control {
        min-height: 100px;
    }

    .filter-form,
    .search-form,
    .toolbar-form {
        display: grid;
        grid-template-columns: minmax(0, 1fr);
        align-items: stretch;
        padding: .75rem;
    }

    .form-actions,
    .form-footer {
        display: grid;
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .form-actions > :only-child,
    .form-footer > :only-child {
        grid-column: 1 / -1;
    }

    .form-actions :where(button, .btn, input[type="submit"], input[type="button"]),
    .form-footer :where(button, .btn, input[type="submit"], input[type="button"]) {
        width: 100%;
        white-space: normal;
    }

    .input-group-text,
    .input-prefix,
    .input-suffix {
        padding-inline: .65rem;
    }
}

@media (max-width: 420px) {
    .form-actions,
    .form-footer {
        grid-template-columns: minmax(0, 1fr);
    }
}

@media (prefers-reduced-motion: reduce) {
    :where(form input, form select, form textarea, form button, .form-control, .pm-input),
    .form-switch input[type="checkbox"],
    .form-switch input[type="checkbox"]::after {
        transition: none !important;
    }
}