/* css/components.css — reusable components (buttons, inputs).
   Toast/modal/picker/pill styles get appended as each component is built. */

/* ========================================
   BUTTONS — copied/adapted from Student-Dashboard
   ======================================== */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    padding: 10px 18px;
    border: 2px solid transparent;
    border-radius: var(--radius-sm);
    font-family: var(--font-primary);
    font-size: var(--font-size-base);
    font-weight: 500;
    line-height: 1.4;
    cursor: pointer;
    transition: all var(--transition-fast);
    text-align: center;
    text-decoration: none;
    outline: none;
}

.btn:focus-visible {
    box-shadow: 0 0 0 3px rgba(2, 132, 199, 0.35);
}

/* Primary — yellow bg, blue text → inverted on hover */
.btn-primary {
    background-color: var(--imi-yellow);
    color: var(--imi-blue);
    border-color: var(--imi-yellow);
}

@media (hover: hover) {
    .btn-primary:hover:not(:disabled) {
        background-color: var(--imi-blue);
        color: var(--imi-yellow);
        border-color: var(--imi-blue);
        transform: translateY(-1px);
        box-shadow: var(--shadow-md);
    }
}

/* Secondary — bordered, white bg, blue text */
.btn-secondary {
    background-color: var(--bg-surface);
    color: var(--imi-blue);
    border-color: var(--imi-blue);
}

@media (hover: hover) {
    .btn-secondary:hover:not(:disabled) {
        background-color: var(--imi-blue);
        color: var(--white);
        transform: translateY(-1px);
        box-shadow: var(--shadow-md);
    }
}

@media (prefers-color-scheme: dark) {
    .btn-secondary {
        color: var(--imi-yellow);
        border-color: var(--imi-yellow);
    }
    /* hover only on hover-capable devices — same suppression as light mode */
}
@media (prefers-color-scheme: dark) and (hover: hover) {
    .btn-secondary:hover:not(:disabled) {
        background-color: var(--imi-yellow);
        color: var(--imi-blue);
    }
}

/* Danger — red text/border on white, inverted on hover */
.btn-danger {
    background-color: var(--bg-surface);
    color: var(--error-red);
    border-color: var(--error-red);
}

@media (hover: hover) {
    .btn-danger:hover:not(:disabled) {
        background-color: var(--error-red);
        color: var(--white);
    }
}

/* Choice — dark blue bg + yellow text/border, inverts to full yellow on hover.
   Used for equal-weight options (e.g. the workspace prompt) where neither
   choice should be visually privileged over the other. */
.btn-choice {
    background-color: var(--imi-blue);
    color: var(--imi-yellow);
    border-color: var(--imi-yellow);
}

@media (hover: hover) {
    .btn-choice:hover:not(:disabled) {
        background-color: var(--imi-yellow);
        color: var(--imi-blue);
        border-color: var(--imi-yellow);
        transform: translateY(-1px);
        box-shadow: var(--shadow-md);
    }
}

/* Link button — text only */
.btn-link {
    background: none;
    border: none;
    color: var(--imi-blue);
    padding: 0;
    font-weight: 500;
    cursor: pointer;
}

@media (hover: hover) {
    .btn-link:hover:not(:disabled) {
        text-decoration: underline;
    }
}

@media (prefers-color-scheme: dark) {
    .btn-link {
        color: var(--imi-yellow);
    }
}

/* Size modifiers */
.btn-sm { padding: 6px 12px; font-size: var(--font-size-sm); }
.btn-lg { padding: 14px 28px; font-size: var(--font-size-lg); }
.btn-block { display: flex; width: 100%; }

/* Icon-only button */
.btn-icon {
    padding: 8px;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: var(--font-size-lg);
    cursor: pointer;
    border-radius: var(--radius-sm);
}

@media (hover: hover) {
    .btn-icon:hover:not(:disabled) {
        background-color: var(--bg-surface-2);
    }
}

/* Disabled state (applies to all .btn variants) */
.btn:disabled,
.btn.disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none !important;
    box-shadow: none !important;
}

/* ========================================
   INPUTS
   ======================================== */

input[type="text"],
input[type="email"],
input[type="tel"],
input[type="url"],
input[type="search"],
textarea,
select {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--border-default);
    border-radius: var(--radius-sm);
    background-color: var(--bg-surface);
    color: var(--text-primary);
    font-family: var(--font-primary);
    font-size: var(--font-size-base);
    line-height: 1.4;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

input[type="text"]:focus,
input[type="email"]:focus,
input[type="tel"]:focus,
input[type="url"]:focus,
input[type="search"]:focus,
textarea:focus,
select:focus {
    outline: none;
    border-color: var(--imi-blue);
    box-shadow: 0 0 0 3px var(--imi-blue-light);
}

@media (prefers-color-scheme: dark) {
    input[type="text"]:focus,
    input[type="email"]:focus,
    input[type="tel"]:focus,
    input[type="url"]:focus,
    input[type="search"]:focus,
    textarea:focus,
    select:focus {
        border-color: var(--imi-yellow);
        box-shadow: 0 0 0 3px var(--imi-blue-light);
    }
}

input::placeholder,
textarea::placeholder {
    color: var(--text-secondary);
}

label {
    display: block;
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xs);
}

.field {
    margin-bottom: var(--spacing-md);
}

.field-row {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.field-row > .field {
    flex: 1 1 0;
    min-width: 0;
}

/* ========================================
   MODAL — minimal hidden-by-default rule; full styles land in task #18
   when modal.js is built. Keep at least this so the empty container in
   index.html doesn't render visibly in the base layer.
   ======================================== */

/* ========================================
   MODAL
   ======================================== */

.modal {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 1000;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-md);
}

.modal.active {
    display: flex;
}

.modal-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.55);
    backdrop-filter: blur(2px);
}

.modal-content {
    position: relative;
    background: var(--bg-surface);
    border-radius: var(--radius-md);
    width: 100%;
    max-width: 480px;
    max-height: calc(100vh - 2 * var(--spacing-md));
    display: flex;
    flex-direction: column;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.modal-close {
    position: absolute;
    top: var(--spacing-sm);
    right: var(--spacing-sm);
    z-index: 2;
    width: 32px;
    height: 32px;
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 22px;
    line-height: 1;
    cursor: pointer;
    border-radius: var(--radius-full);
}

@media (hover: hover) {
    .modal-close:hover {
        background: var(--bg-surface-2);
        color: var(--text-primary);
    }
}

#modal-body {
    flex: 1;
    overflow-y: auto;
    padding: var(--spacing-lg) var(--spacing-md) var(--spacing-md);
}

body.modal-open {
    overflow: hidden;
}

@media (max-width: 480px) {
    .modal {
        padding: 0;
    }
    .modal-content {
        max-width: 100%;
        max-height: 100vh;
        border-radius: 0;
    }
    #modal-body {
        padding-top: calc(var(--spacing-lg) + env(safe-area-inset-top));
        padding-bottom: calc(var(--spacing-md) + env(safe-area-inset-bottom));
    }
}

/* ========================================
   PICKER (rendered inside modal)
   ======================================== */

.picker {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.picker-header h2 {
    font-size: var(--font-size-lg);
    margin: 0;
}

.picker-search input {
    width: 100%;
}

.picker-results {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    min-height: 80px;
}

.picker-row {
    display: block;
    text-align: left;
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--bg-surface);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-sm);
    cursor: pointer;
    color: var(--text-primary);
    font: inherit;
    transition: background var(--transition-fast);
}

@media (hover: hover) {
    .picker-row:hover {
        background: var(--bg-surface-2);
    }
}

.picker-row-create {
    border-style: dashed;
    color: var(--text-secondary);
}

.picker-row-name {
    font-weight: 500;
}

.picker-row-sub {
    font-size: var(--font-size-sm);
    margin-top: 2px;
}

.picker-empty {
    text-align: center;
    padding: var(--spacing-lg);
}

/* ========================================
   PILL EDITOR (emails / phones)
   ======================================== */

.pill-editor {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.pill-editor-rows {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.pill-editor-row {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    background: var(--bg-surface);
    border-radius: var(--radius-sm);
}

.pill-editor-input {
    flex: 1;
    min-width: 0;
}

.pill-editor-drag-handle {
    flex-shrink: 0;
    color: var(--text-secondary);
    cursor: grab;
    padding: 0 var(--spacing-xs);
    user-select: none;
    -webkit-user-select: none;
    /* Larger touch target on mobile */
    min-width: 28px;
    text-align: center;
}

@media (hover: hover) {
    .pill-editor-drag-handle:hover {
        color: var(--text-primary);
    }
}

.pill-editor-drag-handle:active {
    cursor: grabbing;
}

.pill-editor-remove {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 20px;
    line-height: 1;
    cursor: pointer;
    padding: 0 var(--spacing-xs);
    border-radius: var(--radius-sm);
    flex-shrink: 0;
}

@media (hover: hover) {
    .pill-editor-remove:hover {
        color: var(--error-red);
        background: var(--bg-surface-2);
    }
}

.pill-editor-add {
    align-self: flex-start;
    padding: var(--spacing-xs) 0;
}

.pill-editor-empty {
    padding: var(--spacing-xs) 0;
}

/* SortableJS visual states during drag */
.pill-editor-row-ghost {
    opacity: 0.4;
    background: var(--bg-surface-2);
}

.pill-editor-row-chosen {
    /* The row the user is touching/clicking — slight visual highlight */
    background: var(--bg-surface-2);
}

.pill-editor-row-dragging {
    /* The floating clone that follows the pointer */
    box-shadow: var(--shadow-lg);
    background: var(--bg-surface);
    border-radius: var(--radius-sm);
}

/* ========================================
   PICKER FIELD (button that opens picker)
   ======================================== */

.picker-field-wrap {
    display: flex;
    align-items: stretch;
    gap: var(--spacing-xs);
}

.picker-field-btn {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-sm);
    padding: 10px 12px;
    background: var(--bg-surface);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font: inherit;
    text-align: left;
    cursor: pointer;
    min-width: 0;
}

@media (hover: hover) {
    .picker-field-btn:hover {
        background: var(--bg-surface-2);
    }
}

.picker-field-btn > span {
    flex: 1;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.picker-field-btn > i {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
}

.picker-field-placeholder {
    color: var(--text-secondary);
}

.picker-field-clear {
    background: none;
    border: 1px solid var(--border-default);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-size: 18px;
    cursor: pointer;
    padding: 0 var(--spacing-sm);
}

@media (hover: hover) {
    .picker-field-clear:hover {
        color: var(--error-red);
        background: var(--bg-surface-2);
    }
}

/* ========================================
   PEOPLE-MERGE BANNER + chosen state
   ======================================== */

.merge-banner {
    display: flex;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    background: var(--info-blue-bg);
    border-radius: var(--radius-md);
}

.merge-banner-icon {
    color: var(--info-blue);
    font-size: var(--font-size-lg);
    flex-shrink: 0;
    padding-top: 2px;
}

.merge-banner-body {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.merge-banner-title {
    font-weight: 500;
}

.merge-banner-card {
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--bg-surface);
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-default);
}

.merge-banner-name {
    font-weight: 500;
}

.merge-banner-subtitle {
    font-size: var(--font-size-sm);
    margin-top: 2px;
}

.merge-banner-signals {
    display: flex;
    gap: 4px;
    flex-wrap: wrap;
    margin-top: var(--spacing-xs);
}

.merge-signal {
    display: inline-block;
    padding: 2px 6px;
    background: var(--bg-surface-2);
    border-radius: var(--radius-sm);
    font-size: var(--font-size-xs);
    color: var(--text-secondary);
}

.merge-banner-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.merge-chosen {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-md);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--success-green-bg);
    border-left: 4px solid var(--success-green);
    border-radius: var(--radius-sm);
}

.merge-chosen-text {
    flex: 1;
    min-width: 0;
}

.merge-status {
    padding: var(--spacing-sm) 0;
    font-size: var(--font-size-sm);
}

/* ========================================
   CONFLICT MODAL (409 recovery)
   ======================================== */

.conflict-modal h2 {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-sm);
}

.conflict-actions {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-lg);
}

/* ========================================
   SPINNER
   ======================================== */

.spinner {
    width: 36px;
    height: 36px;
    border: 3px solid var(--border-default);
    border-top-color: var(--imi-blue);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@media (prefers-color-scheme: dark) {
    .spinner {
        border-top-color: var(--imi-yellow);
    }
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.spinner-block {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-xl) 0;
}

.spinner-message {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    margin: 0;
}

/* ========================================
   TOAST notifications
   ======================================== */

.toast-container {
    position: fixed;
    top: calc(var(--spacing-md) + env(safe-area-inset-top));
    right: var(--spacing-md);
    z-index: 1000;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    max-width: calc(100vw - 2 * var(--spacing-md));
    pointer-events: none;
}

.toast {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    min-width: 240px;
    max-width: 380px;
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--bg-surface);
    color: var(--text-primary);
    border-left: 4px solid var(--info-blue);
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-md);
    font-size: var(--font-size-sm);
    line-height: 1.4;
    transform: translateX(120%);
    transition: transform 0.22s ease, opacity 0.22s ease;
    opacity: 0;
    pointer-events: auto;
    cursor: pointer;
}

.toast-show {
    transform: translateX(0);
    opacity: 1;
}

.toast-hide {
    transform: translateX(120%);
    opacity: 0;
}

.toast-success { border-left-color: var(--success-green); }
.toast-error   { border-left-color: var(--error-red); }
.toast-warning { border-left-color: var(--warning-orange); }
.toast-info    { border-left-color: var(--info-blue); }

.toast-message {
    flex: 1;
    word-break: break-word;
}

.toast-close {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 18px;
    line-height: 1;
    padding: 0 var(--spacing-xs);
    cursor: pointer;
}

@media (hover: hover) {
    .toast-close:hover {
        color: var(--text-primary);
    }
}

@media (max-width: 480px) {
    .toast-container {
        top: calc(var(--spacing-sm) + env(safe-area-inset-top));
        right: var(--spacing-sm);
        left: var(--spacing-sm);
    }
    .toast {
        max-width: none;
    }
}