/* ==========================================================================
   zs-forms.css — canonical form system for Zvjezdane Staze
   --------------------------------------------------------------------------
   Extracted from apply/form.php (canonical reference) on 2026-05-05.

   Provides:
     .form-section   Grouping wrapper with title + section-note
     .form-group     Single field wrapper (label + input + label-note)
     .form-input     Text/email/date input + select + textarea consistent styling
     .form-row       Two-column grid for paired fields
     .radio-group    Radio + checkbox stacks
     .path-option    Custom radio cards (Three Paths pattern)
     .file-upload    Dashed drop zone for file inputs
     .form-message   Success / error inline messaging
     .char-count     Character counter under textarea
     .conditional    Show/hide on parent radio selection

   Brand book §19 Forms.
   ========================================================================== */


/* ----- Section grouping ----- */
.form-section {
    background: rgba(255, 255, 255, 0.5);
    padding: 2.5rem;
    margin-bottom: 2rem;
}
.form-section h2 {
    font-family: var(--font-serif);
    font-size: 1.4rem;
    font-weight: 400;
    color: var(--forest-deep);
    margin-bottom: 0.5rem;
}
.form-section .section-note {
    font-size: 13px;
    color: var(--light);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}


/* ----- Field grouping ----- */
.form-group {
    margin-bottom: 1.5rem;
}
.form-group label {
    display: block;
    font-family: var(--font-sans);
    /* 11px desktop, 12px mobile — input is now 16px (iOS zoom fix), so the
       11px label feels too thin against it on small viewports. Mobile bump to
       12px restores hierarchy weight. (Form typography revisit 2026-05-06.) */
    font-size: 11px;
    font-weight: 500;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--muted);
    margin-bottom: 0.5rem;
}
@media (max-width: 600px) {
    .form-group label { font-size: 12px; }
}
.form-group .label-note {
    font-size: 12px;
    color: var(--light);
    text-transform: none;
    letter-spacing: 0;
    font-weight: 400;
    margin-top: 0.25rem;
    display: block;
}
.form-group .required-mark {
    color: var(--magenta);
    margin-left: 0.2em;
}


/* ----- Inputs ----- */
.form-group input[type="text"],
.form-group input[type="email"],
.form-group input[type="tel"],
.form-group input[type="url"],
.form-group input[type="date"],
.form-group input[type="number"],
.form-group input[type="password"],
.form-group input[type="search"],
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    font-family: var(--font-sans);
    /* 16px minimum prevents iOS Safari auto-zoom on focus (BB §18 mobile a11y).
       Padding reduced from 0.85rem to 0.75rem to keep box height in 44–48px range. */
    font-size: 16px;
    color: var(--forest-deep);
    background: rgba(255, 255, 255, 0.8);
    border: 1px solid rgba(45, 74, 45, 0.1);
    border-radius: 0;
    outline: none;
    transition:
        border-color 0.3s ease,
        box-shadow 0.3s ease,
        background-color 0.3s ease;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--light);
}

.form-group input:hover,
.form-group select:hover,
.form-group textarea:hover {
    border-color: rgba(45, 74, 45, 0.2);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus,
.form-group input:focus-visible,
.form-group select:focus-visible,
.form-group textarea:focus-visible {
    border-color: var(--gold);
    box-shadow: 0 0 0 3px rgba(196, 160, 80, 0.1);
    background: rgba(255, 255, 255, 0.95);
}

.form-group textarea {
    min-height: 180px;
    resize: vertical;
    line-height: 1.6;
}

.form-group select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%232d4a2d' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 9 L12 15 L18 9'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    background-size: 12px 12px;
    padding-right: 2.4rem;
}


/* ----- Error / success state on input ----- */
.form-group.has-error input,
.form-group.has-error select,
.form-group.has-error textarea,
.form-group input.is-invalid,
.form-group input[aria-invalid="true"] {
    border-color: var(--magenta);
    background: rgba(160, 64, 96, 0.04);
}
.form-group.has-error input:focus,
.form-group input[aria-invalid="true"]:focus {
    box-shadow: 0 0 0 3px rgba(160, 64, 96, 0.12);
}

.form-group .field-error {
    display: block;
    font-family: var(--font-sans);
    font-size: 12px;
    color: var(--magenta);
    margin-top: 0.4rem;
    letter-spacing: 0.02em;
}


/* ----- Two-column row ----- */
.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}
@media (max-width: 600px) {
    .form-row { grid-template-columns: 1fr; }
}


/* ----- Radio & checkbox stacks ----- */
.radio-group,
.checkbox-group {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin-top: 0.5rem;
}
.radio-option,
.checkbox-option {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    cursor: pointer;
}
.radio-option input,
.checkbox-option input {
    margin-top: 0.25rem;
    accent-color: var(--forest);
    width: 16px;
    height: 16px;
    cursor: pointer;
    flex: none;
}
.radio-option span,
.checkbox-option span {
    font-family: var(--font-serif);
    font-size: 14px;
    color: var(--forest-deep);
    line-height: 1.5;
}
.radio-option .option-desc,
.checkbox-option .option-desc {
    display: block;
    font-size: 12px;
    color: var(--light);
    margin-top: 0.15rem;
    font-family: var(--font-sans);
}


/* ----- Path-option (Three Paths pattern) ----- */
.path-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-top: 0.5rem;
}
.path-option {
    padding: 1rem 1.25rem;
    border: 1px solid rgba(45, 74, 45, 0.06);
    background: rgba(255, 255, 255, 0.4);
    transition:
        background-color 0.3s,
        border-color 0.3s;
    cursor: pointer;
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
}
.path-option:hover {
    background: rgba(255, 255, 255, 0.7);
    border-color: rgba(45, 74, 45, 0.12);
}
.path-option input {
    margin-top: 0.35rem;
    accent-color: var(--forest);
    width: 16px;
    height: 16px;
    cursor: pointer;
    flex-shrink: 0;
}
.path-option .path-label {
    font-family: var(--font-serif);
    font-size: 14px;
    font-weight: 500;
    color: var(--forest-deep);
}
.path-option .path-number {
    font-family: var(--font-sans);
    font-size: 12px;
    color: var(--gold);
    font-weight: 500;
    letter-spacing: 0.05em;
    margin-right: 0.25rem;
}
.path-option .path-desc {
    font-family: var(--font-sans);
    font-size: 12px;
    color: var(--light);
    margin-top: 0.2rem;
    line-height: 1.5;
}
.path-option.selected,
.path-option:has(input:checked) {
    background: rgba(45, 74, 45, 0.04);
    border-color: rgba(45, 74, 45, 0.2);
}


/* ----- File upload ----- */
.file-upload-area {
    position: relative;
    border: 1px dashed rgba(45, 74, 45, 0.18);
    padding: 1.5rem;
    text-align: center;
    transition:
        border-color 0.3s,
        background-color 0.3s;
    cursor: pointer;
    background: rgba(255, 255, 255, 0.4);
}
.file-upload-area:hover {
    border-color: var(--gold);
    background: rgba(255, 255, 255, 0.7);
}
.file-upload-area.has-file,
.file-upload-area:has(input:valid:not([value=""])) {
    border-color: var(--forest);
    border-style: solid;
    background: rgba(45, 74, 45, 0.03);
}
.file-upload-area input[type="file"] {
    position: absolute;
    inset: 0;
    opacity: 0;
    cursor: pointer;
}
.file-upload-text {
    font-family: var(--font-sans);
    font-size: 13px;
    color: var(--light);
    line-height: 1.6;
}
.file-upload-text .upload-icon {
    font-size: 18px;
    display: block;
    margin-bottom: 0.35rem;
    opacity: 0.4;
}
.file-name {
    font-family: var(--font-sans);
    font-size: 13px;
    color: var(--forest);
    font-weight: 500;
    margin-top: 0.5rem;
}


/* ----- Conditional sections (show/hide based on radio) ----- */
.conditional { display: none; }
.conditional.visible { display: block; }
.conditional.visible .form-section { animation: zs-form-fade-slide 0.35s ease; }

@keyframes zs-form-fade-slide {
    from { opacity: 0; transform: translateY(8px); }
    to   { opacity: 1; transform: translateY(0); }
}


/* ----- Character count ----- */
.char-count {
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--light);
    text-align: right;
    margin-top: 0.35rem;
    letter-spacing: 0.04em;
}
@media (max-width: 600px) {
    .char-count { font-size: 12px; }
}
.char-count.warning {
    color: var(--magenta);
}


/* ----- Form messages (success / error inline alert) ----- */
.form-message {
    font-family: var(--font-sans);
    font-size: 14px;
    padding: 1rem 1.4rem;
    margin-bottom: 1rem;
    display: none;
    line-height: 1.6;
    border-left: 3px solid transparent;
}
.form-message.show { display: block; }

.form-message.error {
    background: rgba(160, 64, 96, 0.08);
    border-left-color: var(--magenta);
    color: var(--magenta);
}
.form-message.success {
    background: rgba(45, 74, 45, 0.06);
    border-left-color: var(--forest);
    color: var(--forest);
}
.form-message.info {
    background: rgba(196, 160, 80, 0.08);
    border-left-color: var(--gold-deep);
    color: var(--gold-deep);
}


/* ----- Submission success state (after successful submit) ----- */
.success-message {
    display: none;
    text-align: center;
    padding: 3rem 2rem;
    background: rgba(45, 74, 45, 0.05);
    border-left: 3px solid var(--forest);
}
.success-message.show { display: block; }
.success-message h2 {
    font-family: var(--font-serif);
    font-size: 1.6rem;
    font-weight: 400;
    color: var(--forest-deep);
    margin-bottom: 0.6rem;
}
.success-message p {
    font-family: var(--font-serif);
    font-size: 15px;
    color: var(--muted);
    line-height: 1.7;
}


/* ----- Reduced motion ----- */
@media (prefers-reduced-motion: reduce) {
    .form-group input,
    .form-group select,
    .form-group textarea,
    .path-option,
    .file-upload-area { transition: none; }
    .conditional.visible .form-section { animation: none; }
}