/**
 * Modern Design System for Roundcube Elastic Skin
 * Inspired by Linear, Vercel, Notion - Clean & Professional
 */

:root {
    --blue-50: #eff6ff;
    --blue-100: #dbeafe;
    --blue-500: #3b82f6;
    --blue-600: #2563eb;
    --blue-700: #1d4ed8;
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;
    --green-50: #f0fdf4;
    --green-600: #16a34a;
    --red-50: #fef2f2;
    --red-600: #dc2626;
    --amber-50: #fffbeb;
    --amber-600: #d97706;
    --radius: 8px;
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.07), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.04);
    --transition: all 0.15s ease;
}

html {
    font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif !important;
    font-size: 14px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    background: var(--gray-50) !important;
    color: var(--gray-800) !important;
}

/* ========================================
   LAYOUT
   ======================================== */
#layout > div > .header {
    background: #fff !important;
    border-bottom: 1px solid var(--gray-200) !important;
}

#layout > div > .footer {
    background: #fff !important;
    border-top: 1px solid var(--gray-200) !important;
}

#layout-sidebar {
    background: #fff !important;
    border-right: 1px solid var(--gray-200) !important;
}

#layout-list {
    background: #fff !important;
    border-right: 1px solid var(--gray-200) !important;
}

#layout-content {
    background: var(--gray-50) !important;
}

/* ========================================
   LOGIN
   ======================================== */
body.task-login {
    background: linear-gradient(135deg, #f0f4f8 0%, #d9e2ec 100%) !important;
    min-height: 100vh;
}

body.task-login #layout-content {
    background: transparent !important;
}

#login-form {
    background: #fff !important;
    border-radius: 12px !important;
    box-shadow: var(--shadow-lg), 0 0 0 1px rgba(0, 0, 0, 0.03) !important;
    padding: 2.5rem !important;
    border: none !important;
    max-width: 360px !important;
    width: 90% !important;
}

#login-form .form-control {
    border-radius: var(--radius) !important;
    border: 1.5px solid var(--gray-200) !important;
    background: #fff !important;
    padding: 0.7rem 0.875rem !important;
    font-size: 0.9rem !important;
    transition: var(--transition) !important;
    height: auto !important;
}

#login-form .form-control:focus {
    border-color: var(--blue-500) !important;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1) !important;
    outline: none !important;
}

#login-form .input-group .icon {
    background: transparent !important;
    border: none !important;
    color: var(--gray-400) !important;
}

#login-form .formbuttons button,
#login-form .formbuttons input[type="submit"] {
    width: 100% !important;
    border-radius: var(--radius) !important;
    padding: 0.7rem 1.5rem !important;
    font-size: 0.9rem !important;
    font-weight: 500 !important;
    background: var(--blue-600) !important;
    color: #fff !important;
    border: none !important;
    cursor: pointer;
    transition: var(--transition) !important;
}

#login-form .formbuttons button:hover,
#login-form .formbuttons input[type="submit"]:hover {
    background: var(--blue-700) !important;
}

#login-form .oauthlogin {
    margin-top: 1.5rem !important;
    padding-top: 1.5rem !important;
    border-top: 1px solid var(--gray-200) !important;
}

#login-form .oauthlogin .btn {
    border-radius: var(--radius) !important;
    padding: 0.6rem 1rem !important;
    font-weight: 500 !important;
    border: 1.5px solid var(--gray-200) !important;
    background: #fff !important;
    transition: var(--transition) !important;
}

#login-form .oauthlogin .btn:hover {
    border-color: var(--gray-300) !important;
}

#login-footer {
    margin-top: 1.5rem !important;
    padding: 0 !important;
    background: transparent !important;
    color: var(--gray-500) !important;
    font-size: 0.8rem !important;
}

#login-footer > div {
    background: transparent !important;
    padding: 0 !important;
}

#login-footer a {
    color: var(--blue-600) !important;
    text-decoration: none !important;
}

/* ========================================
   BUTTONS
   ======================================== */
.btn, button.btn, a.btn {
    border-radius: var(--radius) !important;
    border: none !important;
    font-weight: 500 !important;
    font-size: 0.85rem !important;
    padding: 0.5rem 1rem !important;
    transition: var(--transition) !important;
}

.btn:focus, button.btn:focus, a.btn:focus {
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15) !important;
    outline: none !important;
}

.btn-primary {
    background: var(--blue-600) !important;
    color: #fff !important;
}

.btn-primary:hover {
    background: var(--blue-700) !important;
}

.btn-secondary {
    background: var(--gray-100) !important;
    color: var(--gray-700) !important;
}

.btn-secondary:hover {
    background: var(--gray-200) !important;
}

.btn-danger {
    background: var(--red-600) !important;
    color: #fff !important;
}

.btn-danger:hover {
    background: #b91c1c !important;
}

.btn-link {
    color: var(--blue-600) !important;
    text-decoration: none !important;
}

/* ========================================
   TOOLBAR & MENU
   ======================================== */
.menu.toolbar a {
    border-radius: 6px !important;
    transition: var(--transition) !important;
    color: var(--gray-600) !important;
}

.menu.toolbar a:hover,
.menu.toolbar a:not(.disabled):focus {
    background: var(--gray-100) !important;
    color: var(--gray-800) !important;
}

.menu.toolbar a.selected {
    color: var(--blue-600) !important;
    background: var(--blue-50) !important;
}

#taskmenu a {
    transition: var(--transition) !important;
}

#taskmenu a:hover {
    background: var(--gray-100) !important;
}

#taskmenu a.selected {
    background: var(--blue-50) !important;
    color: var(--blue-600) !important;
}

#taskmenu a.logout {
    color: var(--red-600) !important;
}

/* ========================================
   LISTS
   ======================================== */
.listing tbody td,
.listing li {
    border-bottom: 1px solid var(--gray-100) !important;
}

.listing li > a:hover,
.listing tbody tr:hover td {
    background: var(--gray-50) !important;
}

.listing li.selected,
.listing tr.selected td {
    background: var(--blue-50) !important;
}

.folderlist li .unreadcount {
    background: var(--blue-600) !important;
    color: #fff !important;
    border-radius: 10px !important;
    font-size: 0.7rem !important;
    font-weight: 600 !important;
    padding: 2px 6px !important;
}

.messagelist tr.unread td.subject span.subject {
    font-weight: 600 !important;
}

/* ========================================
   FORMS
   ======================================== */
.form-control {
    border-radius: var(--radius) !important;
    border: 1.5px solid var(--gray-200) !important;
    background: #fff !important;
    padding: 0.5rem 0.75rem !important;
    font-size: 0.85rem !important;
    transition: var(--transition) !important;
}

.form-control:focus {
    border-color: var(--blue-500) !important;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1) !important;
    outline: none !important;
}

.form-control::placeholder {
    color: var(--gray-400) !important;
}

.form-control:disabled,
.form-control[readonly] {
    background: var(--gray-100) !important;
    color: var(--gray-500) !important;
}

.input-group-text {
    background: var(--gray-100) !important;
    border: 1.5px solid var(--gray-200) !important;
    color: var(--gray-500) !important;
}

/* Switches */
.custom-switch .custom-control-label:before {
    background: var(--gray-300) !important;
    border: none !important;
    border-radius: 10px !important;
    width: 36px !important;
    height: 20px !important;
}

.custom-switch .custom-control-label:after {
    background: #fff !important;
    border-radius: 50% !important;
    width: 16px !important;
    height: 16px !important;
}

.custom-switch .custom-control-input:checked ~ .custom-control-label:before {
    background: var(--blue-600) !important;
}

.custom-switch .custom-control-input:checked ~ .custom-control-label:after {
    transform: translateX(16px) !important;
}

/* ========================================
   DIALOGS & POPOVERS
   ======================================== */
.ui-dialog {
    border-radius: 12px !important;
    border: none !important;
    box-shadow: var(--shadow-lg) !important;
    overflow: hidden !important;
}

.ui-dialog .ui-dialog-titlebar {
    background: var(--gray-50) !important;
    border-bottom: 1px solid var(--gray-200) !important;
    font-weight: 600 !important;
}

.ui-dialog .ui-dialog-buttonpane {
    background: var(--gray-50) !important;
    border-top: 1px solid var(--gray-200) !important;
}

.popover {
    border-radius: var(--radius) !important;
    border: 1px solid var(--gray-200) !important;
    box-shadow: var(--shadow-lg) !important;
}

.popover .popover-header {
    background: var(--gray-50) !important;
    border-bottom: 1px solid var(--gray-200) !important;
    font-weight: 600 !important;
}

.popover .listing li a:hover {
    background: var(--gray-100) !important;
}

/* ========================================
   SEARCH BAR
   ======================================== */
.searchbar {
    background: var(--gray-50) !important;
    border-bottom: 1px solid var(--gray-200) !important;
}

.searchbar input::placeholder {
    color: var(--gray-400) !important;
}

.searchbar a {
    color: var(--gray-500) !important;
    transition: var(--transition) !important;
}

.searchbar a:hover {
    color: var(--blue-600) !important;
}

/* ========================================
   MESSAGE VIEW
   ======================================== */
#message-header {
    background: #fff !important;
    border-radius: 12px !important;
    margin: 1rem !important;
    padding: 1.25rem !important;
    box-shadow: var(--shadow-sm) !important;
    border: 1px solid var(--gray-200) !important;
}

#message-header > .subject {
    font-size: 1.25rem !important;
    font-weight: 600 !important;
}

.message-part,
.message-htmlpart {
    background: #fff !important;
    border-radius: var(--radius) !important;
    margin: 0 1rem 1rem !important;
    padding: 1.25rem !important;
    box-shadow: var(--shadow-sm) !important;
    border: 1px solid var(--gray-200) !important;
}

.message-part blockquote,
.message-htmlpart blockquote {
    border-left: 3px solid var(--gray-300) !important;
    background: var(--gray-50) !important;
    border-radius: 0 6px 6px 0 !important;
    border-right: none !important;
}

.attachmentslist {
    background: transparent !important;
    border: none !important;
}

.attachmentslist li {
    background: var(--gray-100) !important;
    border-radius: 6px !important;
    padding: 0.35rem 0.6rem !important;
    margin: 0.2rem 0.2rem 0.2rem 0 !important;
}

.attachmentslist li:hover {
    background: var(--gray-200) !important;
}

/* ========================================
   CONTACT & FORM CONTENT
   ======================================== */
#contactpic {
    border-radius: 12px !important;
    box-shadow: var(--shadow-sm) !important;
}

.contact-header,
.formcontent {
    background: #fff !important;
    border-radius: 12px !important;
    margin: 1rem !important;
    padding: 1.25rem !important;
    box-shadow: var(--shadow-sm) !important;
    border: 1px solid var(--gray-200) !important;
}

.formcontent .nav-tabs {
    border-bottom: 1px solid var(--gray-200) !important;
}

.formcontent .nav-tabs .nav-link {
    border: none !important;
    border-radius: 6px !important;
    color: var(--gray-600) !important;
    font-weight: 500 !important;
}

.formcontent .nav-tabs .nav-link:hover {
    background: var(--gray-100) !important;
}

.formcontent .nav-tabs .nav-link.active {
    background: var(--blue-50) !important;
    color: var(--blue-600) !important;
}

/* ========================================
   TABLES & WIDGETS
   ======================================== */
.table thead th {
    background: var(--gray-50) !important;
    border-bottom: 1px solid var(--gray-200) !important;
    color: var(--gray-600) !important;
    font-weight: 600 !important;
    font-size: 0.75rem !important;
    text-transform: uppercase !important;
    letter-spacing: 0.04em !important;
    padding: 0.75rem 1rem !important;
}

.table tbody tr:hover td {
    background: var(--gray-50) !important;
}

.table-widget {
    border-radius: var(--radius) !important;
    border: 1px solid var(--gray-200) !important;
    overflow: hidden !important;
}

.formcontainer .formbuttons {
    background: var(--gray-50) !important;
    border-top: 1px solid var(--gray-200) !important;
}

fieldset {
    border-radius: var(--radius) !important;
    border: 1px solid var(--gray-200) !important;
    padding: 1rem !important;
}

fieldset legend {
    font-weight: 600 !important;
    font-size: 0.9rem !important;
}

/* ========================================
   FILE UPLOAD & RECIPIENT
   ======================================== */
.file-upload {
    border-radius: 12px !important;
    border: 2px dashed var(--gray-300) !important;
    background: var(--gray-50) !important;
    transition: var(--transition) !important;
}

.file-upload:hover {
    border-color: var(--blue-500) !important;
    background: var(--blue-50) !important;
}

.recipient-input {
    border-radius: var(--radius) !important;
    border: 1.5px solid var(--gray-200) !important;
}

.recipient-input.focus {
    border-color: var(--blue-500) !important;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1) !important;
}

.recipient-input li.recipient {
    background: var(--gray-100) !important;
    border: 1px solid var(--gray-200) !important;
    border-radius: 6px !important;
}

/* ========================================
   QUOTA & MISC
   ======================================== */
.quota-widget .bar {
    background: var(--gray-200) !important;
    border: none !important;
    border-radius: 4px !important;
}

.quota-widget .value {
    background: var(--blue-600) !important;
    border-radius: 4px !important;
}

.quota-widget .value.warning {
    background: var(--amber-600) !important;
}

.webkit-scroller::-webkit-scrollbar-thumb {
    background: var(--gray-300) !important;
    border: none !important;
    border-radius: 4px !important;
}

.webkit-scroller::-webkit-scrollbar-thumb:hover {
    background: var(--gray-400) !important;
}

#rcmdraglayer {
    border-radius: var(--radius) !important;
    box-shadow: var(--shadow-lg) !important;
    border: 1px solid var(--gray-200) !important;
}

/* Links */
a {
    color: var(--blue-600) !important;
    text-decoration: none !important;
    transition: var(--transition) !important;
}

a:hover {
    color: var(--blue-700) !important;
    text-decoration: underline !important;
}

/* Alerts */
.confirmation {
    background: var(--green-50) !important;
    color: #166534 !important;
}

.warning {
    background: var(--amber-50) !important;
    color: #92400e !important;
}

.error {
    background: var(--red-50) !important;
    color: #991b1b !important;
}

.notice {
    background: var(--blue-50) !important;
    color: #1e40af !important;
}

.confirmation, .warning, .error, .notice {
    border-radius: var(--radius) !important;
    border: none !important;
    padding: 0.75rem 1rem !important;
    font-weight: 500 !important;
}

.formcontent.raweditor .CodeMirror {
    border-radius: var(--radius) !important;
    border: 1.5px solid var(--gray-200) !important;
}

.formcontent.raweditor .CodeMirror-focused {
    border-color: var(--blue-500) !important;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1) !important;
}

/* Floating action */
.floating-action-buttons a.button {
    border-radius: 50% !important;
    background: var(--blue-600) !important;
    box-shadow: var(--shadow-lg) !important;
    transition: var(--transition) !important;
}

.floating-action-buttons a.button:hover {
    transform: scale(1.05) !important;
}

/* ========================================
   RESPONSIVE
   ======================================== */
@media screen and (max-width: 768px) {
    #login-form {
        padding: 1.5rem !important;
    }
    .formcontent {
        margin: 0.5rem !important;
    }
    #message-header {
        margin: 0.5rem !important;
    }
    .message-part, .message-htmlpart {
        margin: 0 0.5rem 0.5rem !important;
    }
}

/* ========================================
   DARK MODE
   ======================================== */
html.dark-mode {
    --gray-50: #1a1a1a;
    --gray-100: #262626;
    --gray-200: #333;
    --gray-300: #525252;
    --gray-400: #a3a3a3;
    --gray-500: #d4d4d4;
    --gray-600: #e5e5e5;
    --gray-700: #f3f4f6;
    --gray-800: #f9fafb;
    --gray-900: #fff;
}

html.dark-mode body {
    background: #0f0f0f !important;
}

html.dark-mode .form-control {
    background: var(--gray-100) !important;
    color: var(--gray-800) !important;
}

html.dark-mode .popover,
html.dark-mode .ui-dialog {
    background: var(--gray-100) !important;
}

html.dark-mode .message-part,
html.dark-mode .message-htmlpart,
html.dark-mode .formcontent {
    background: var(--gray-100) !important;
}

html.dark-mode .webkit-scroller::-webkit-scrollbar-thumb {
    background: var(--gray-400) !important;
}

@keyframes fade-in {
    from { opacity: 0; transform: translateY(6px); }
    to { opacity: 1; transform: translateY(0); }
}

#login-form {
    animation: fade-in 0.3s ease forwards;
}