:root {
    --primary: #1b2f51;
    --secondary: #448ec1;
    --white: #ffffff;
    --gray-100: #f8f9fa;
    --gray-200: #e9ecef;
    --gray-300: #dee2e6;
    --gray-400: #ced4da;
    --gray-500: #adb5bd;
    --gray-600: #6c757d;
    --gray-700: #495057;
    --gray-800: #343a40;
    --red: #dc3545;
    --yellow: #ffc107;
    --green: #28a745;
    --sidebar-width: 240px;
    --sidebar-collapsed: 60px;
    --header-height: 0px;
    --transition: 0.3s ease;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html, body {
    height: 100%;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    background: var(--gray-100);
    color: var(--gray-800);
    font-size: 14px;
}

.layout {
    display: flex;
    height: 100vh;
    overflow: hidden;
}

.sidebar {
    width: var(--sidebar-width);
    background: var(--white);
    border-right: 1px solid var(--gray-200);
    display: flex;
    flex-direction: column;
    transition: width var(--transition);
    position: relative;
    z-index: 100;
    flex-shrink: 0;
}

.sidebar.collapsed {
    width: var(--sidebar-collapsed);
}

.sidebar__header {
    padding: 16px;
    border-bottom: 1px solid var(--gray-200);
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 70px;
}

.sidebar__brand {
    display: flex;
    align-items: center;
    text-decoration: none;
    color: var(--primary);
    overflow: hidden;
}

.sidebar__logo {
    width: 40px;
    height: 40px;
    flex-shrink: 0;
}

.sidebar__brand-text {
    margin-left: 12px;
    display: flex;
    flex-direction: column;
    white-space: nowrap;
    overflow: hidden;
    transition: opacity var(--transition), width var(--transition);
}

.sidebar.collapsed .sidebar__brand-text {
    opacity: 0;
    width: 0;
    margin-left: 0;
}

.sidebar__brand-title {
    font-weight: 600;
    font-size: 14px;
}

.sidebar__brand-subtitle {
    font-size: 11px;
    color: var(--gray-500);
}

.sidebar__toggle {
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--gray-600);
    transition: background var(--transition);
    flex-shrink: 0;
}

.sidebar__toggle:hover {
    background: var(--gray-100);
}

.sidebar__toggle svg {
    width: 20px;
    height: 20px;
    transition: transform var(--transition);
}

.sidebar.collapsed .sidebar__toggle svg {
    transform: rotate(180deg);
}

.sidebar__nav {
    flex: 1;
    padding: 12px 8px;
    overflow-y: auto;
    overflow-x: hidden;
}

.sidebar__link {
    display: flex;
    align-items: center;
    padding: 10px 12px;
    margin-bottom: 4px;
    text-decoration: none;
    color: var(--gray-700);
    border-radius: 6px;
    transition: background var(--transition), color var(--transition);
    white-space: nowrap;
    overflow: hidden;
}

.sidebar__link:hover {
    background: var(--gray-100);
    color: var(--secondary);
}

.sidebar__link--active {
    background: rgba(68, 142, 193, 0.1);
    color: var(--secondary);
    font-weight: 500;
}

.sidebar__link-icon {
    width: 22px;
    height: 22px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
}

.sidebar__link-icon svg,
.sidebar__link-icon img {
    width: 20px;
    height: 20px;
}

.sidebar__link-text {
    margin-left: 12px;
    transition: opacity var(--transition);
}

.sidebar.collapsed .sidebar__link-text {
    opacity: 0;
    width: 0;
    margin-left: 0;
}

.sidebar__separator {
    height: 1px;
    background: var(--gray-200);
    margin: 12px 8px;
}

.sidebar__footer {
    padding: 12px;
    border-top: 1px solid var(--gray-200);
}

.sidebar__footer-link {
    display: flex;
    align-items: center;
    padding: 10px 12px;
    text-decoration: none;
    color: var(--gray-600);
    border-radius: 6px;
    transition: background var(--transition);
    white-space: nowrap;
    overflow: hidden;
}

.sidebar__footer-link:hover {
    background: var(--gray-100);
}

.sidebar.collapsed .sidebar__footer-text {
    opacity: 0;
    width: 0;
}

.main {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    background: var(--gray-100);
}

.main__content {
    flex: 1;
    overflow: hidden;
    position: relative;
}

.iframe-container {
    width: 100%;
    height: 100%;
    border: none;
}

.iframe-container iframe {
    width: 100%;
    height: 100%;
    border: none;
}

.welcome-screen {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    text-align: center;
    padding: 40px;
    color: var(--gray-600);
}

.welcome-screen__logo {
    width: 80px;
    height: 80px;
    margin-bottom: 24px;
    opacity: 0.6;
}

.welcome-screen__title {
    font-size: 24px;
    font-weight: 600;
    color: var(--primary);
    margin-bottom: 8px;
}

.welcome-screen__subtitle {
    font-size: 14px;
    color: var(--gray-500);
}

.calendario-container {
    display: flex;
    flex-direction: column;
    height: 100%;
    padding: 20px;
    gap: 16px;
}

.calendario-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 8px;
}

.calendario-header__title {
    font-size: 20px;
    font-weight: 600;
    color: var(--primary);
}

.calendario-header__nav {
    display: flex;
    align-items: center;
    gap: 8px;
}

.calendario-header__btn {
    background: var(--white);
    border: 1px solid var(--gray-300);
    padding: 8px 16px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 14px;
    color: var(--gray-700);
    transition: all var(--transition);
}

.calendario-header__btn:hover {
    background: var(--gray-100);
    border-color: var(--secondary);
    color: var(--secondary);
}

.calendario-header__month {
    font-size: 16px;
    font-weight: 500;
    min-width: 160px;
    text-align: center;
}

.calendario-body {
    display: flex;
    flex: 1;
    gap: 16px;
    overflow: hidden;
}

.calendario-grid-wrapper {
    flex: 2;
    background: var(--white);
    border-radius: 8px;
    border: 1px solid var(--gray-200);
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.calendario-weekdays {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    background: var(--primary);
    color: var(--white);
}

.calendario-weekday {
    padding: 12px 8px;
    text-align: center;
    font-size: 12px;
    font-weight: 500;
    text-transform: uppercase;
}

.calendario-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    flex: 1;
}

.calendario-day {
    border: 1px solid var(--gray-200);
    padding: 8px;
    min-height: 80px;
    cursor: pointer;
    transition: background var(--transition);
    position: relative;
}

.calendario-day:hover {
    background: var(--gray-50);
}

.calendario-day--other-month {
    background: var(--gray-100);
    color: var(--gray-400);
}

.calendario-day--today {
    background: rgba(68, 142, 193, 0.1);
}

.calendario-day__number {
    font-size: 14px;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 6px;
}

.calendario-day__indicator {
    width: 8px;
    height: 8px;
    border-radius: 50%;
}

.calendario-day__indicator--red {
    background: var(--red);
}

.calendario-day__indicator--yellow {
    background: var(--yellow);
}

.calendario-day__indicator--green {
    background: var(--green);
}

.notificaciones-panel {
    flex: 1;
    background: var(--white);
    border-radius: 8px;
    border: 1px solid var(--gray-200);
    display: flex;
    flex-direction: column;
    min-width: 280px;
    max-width: 350px;
}

.notificaciones-panel__header {
    padding: 16px;
    border-bottom: 1px solid var(--gray-200);
    font-weight: 600;
    color: var(--primary);
}

.notificaciones-panel__list {
    flex: 1;
    overflow-y: auto;
    padding: 8px;
}

.notificacion-item {
    padding: 12px;
    border-radius: 6px;
    background: var(--gray-50);
    margin-bottom: 8px;
    border-left: 3px solid var(--secondary);
}

.notificacion-item__time {
    font-size: 12px;
    color: var(--secondary);
    font-weight: 500;
}

.notificacion-item__patient {
    font-size: 14px;
    font-weight: 500;
    margin: 4px 0;
}

.notificacion-item__doctor {
    font-size: 12px;
    color: var(--gray-600);
}

.notificacion-empty {
    text-align: center;
    padding: 40px 20px;
    color: var(--gray-500);
}

.chat-input-container {
    background: var(--white);
    border-radius: 8px;
    border: 1px solid var(--gray-200);
    padding: 12px;
}

.chat-input-form {
    display: flex;
    gap: 12px;
}

.chat-input {
    flex: 1;
    padding: 12px 16px;
    border: 1px solid var(--gray-300);
    border-radius: 6px;
    font-size: 14px;
    outline: none;
    transition: border-color var(--transition);
}

.chat-input:focus {
    border-color: var(--secondary);
}

.chat-input::placeholder {
    color: var(--gray-400);
}

.chat-send-btn {
    background: var(--secondary);
    color: var(--white);
    border: none;
    padding: 12px 24px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    transition: background var(--transition);
    display: flex;
    align-items: center;
    gap: 8px;
}

.chat-send-btn:hover {
    background: var(--primary);
}

.chat-send-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition);
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal {
    background: var(--white);
    border-radius: 12px;
    width: 90%;
    max-width: 500px;
    max-height: 90vh;
    overflow-y: auto;
    transform: translateY(-20px);
    transition: transform var(--transition);
}

.modal-overlay.active .modal {
    transform: translateY(0);
}

.modal__header {
    padding: 20px;
    border-bottom: 1px solid var(--gray-200);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.modal__title {
    font-size: 18px;
    font-weight: 600;
    color: var(--primary);
}

.modal__close {
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
    color: var(--gray-500);
    padding: 4px;
    line-height: 1;
}

.modal__close:hover {
    color: var(--gray-700);
}

.modal__body {
    padding: 20px;
}

.modal__footer {
    padding: 16px 20px;
    border-top: 1px solid var(--gray-200);
    display: flex;
    justify-content: flex-end;
    gap: 12px;
}

.form-group {
    margin-bottom: 16px;
}

.form-group label {
    display: block;
    margin-bottom: 6px;
    font-size: 13px;
    font-weight: 500;
    color: var(--gray-700);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--gray-300);
    border-radius: 6px;
    font-size: 14px;
    outline: none;
    transition: border-color var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--secondary);
}

.btn {
    padding: 10px 20px;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition);
    border: none;
}

.btn--primary {
    background: var(--secondary);
    color: var(--white);
}

.btn--primary:hover {
    background: var(--primary);
}

.btn--secondary {
    background: var(--gray-200);
    color: var(--gray-700);
}

.btn--secondary:hover {
    background: var(--gray-300);
}

.btn--danger {
    background: var(--red);
    color: var(--white);
}

.btn--danger:hover {
    background: #c82333;
}

.ajustes-container {
    padding: 24px;
    max-width: 800px;
    margin: 0 auto;
}

.ajustes-section {
    background: var(--white);
    border-radius: 8px;
    border: 1px solid var(--gray-200);
    margin-bottom: 20px;
}

.ajustes-section__header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--gray-200);
    font-weight: 600;
    color: var(--primary);
}

.ajustes-section__body {
    padding: 20px;
}

.loading-spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 2px solid var(--gray-300);
    border-top-color: var(--secondary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

.toast {
    position: fixed;
    bottom: 24px;
    right: 24px;
    background: var(--primary);
    color: var(--white);
    padding: 12px 20px;
    border-radius: 8px;
    font-size: 14px;
    z-index: 2000;
    transform: translateY(100px);
    opacity: 0;
    transition: all var(--transition);
}

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

.toast--success {
    background: var(--green);
}

.toast--error {
    background: var(--red);
}

@media (max-width: 1024px) {
    .notificaciones-panel {
        display: none;
    }

    .calendario-body {
        flex-direction: column;
    }
}

@media (max-width: 768px) {
    .sidebar {
        position: fixed;
        left: 0;
        top: 0;
        bottom: 0;
        transform: translateX(-100%);
        z-index: 200;
    }

    .sidebar.mobile-open {
        transform: translateX(0);
    }

    .sidebar.collapsed {
        width: var(--sidebar-width);
    }

    .mobile-overlay {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: rgba(0, 0, 0, 0.5);
        z-index: 150;
        opacity: 0;
        visibility: hidden;
        transition: all var(--transition);
    }

    .mobile-overlay.active {
        opacity: 1;
        visibility: visible;
    }

    .mobile-header {
        display: flex;
        align-items: center;
        padding: 12px 16px;
        background: var(--white);
        border-bottom: 1px solid var(--gray-200);
    }

    .mobile-header__toggle {
        background: none;
        border: none;
        padding: 8px;
        cursor: pointer;
        color: var(--gray-700);
    }

    .mobile-header__title {
        margin-left: 12px;
        font-weight: 600;
        color: var(--primary);
    }

    .calendario-container {
        padding: 12px;
    }

    .calendario-day {
        min-height: 50px;
        padding: 4px;
    }

    .calendario-day__number {
        font-size: 12px;
    }
}

@media (max-width: 480px) {
    .calendario-weekday {
        padding: 8px 4px;
        font-size: 10px;
    }

    .calendario-header {
        flex-direction: column;
        gap: 12px;
    }

    .chat-input-form {
        flex-direction: column;
    }

    .chat-send-btn {
        width: 100%;
        justify-content: center;
    }
}